Teacher Mike Annetts
For almost 20 years Mike Annetts has been an Industrial Arts teacher in Manitoba, Canada, for students from grade 7 through 12, and he has been running a ShopBot tool in his classroom for over a decade. When we reached out to him to see if he’d like to talk about his and his students’ experiences with CNC, Mike was enthusiastic to say the least.
“I would just like to thank Shopbot for making such a great machine!” said Mike. “I truly believe that it is a product that does what it says and the support we have gotten is amazing.
It was over 15 years ago that Mike was first able to bring a CNC tool into his school. After a disappointing experience with it, he studied other solutions, including spending a lot of time researching ShopBot Tools by reading the ShopBot user forum. “This research, as well as the company’s reputation for support” convinced Mike that the ShopBot was going to be a better fit for his classroom. He secured funding from his school board and purchased a 4 X 8 gantry tool, and has since upgraded the tool to running with a spindle.
I caught up with Mike by phone recently.
MB: How do students react when first being introduced to CNC?
Student with her small folding table project. Mike has blurred faces to protect students’ privacy.
MA: They think that it is very cool. The first CNC project we do is a folding table, and they get to use the Shopbot to carve a graphic design onto the tabletop. Our students are rural students in a mainly farming area so they do not have much of a chance to see any real manufacturing of products. They love being able to choose a design from the internet to use as a starting point, or even draw their own on paper. We then take a photo of the picture, convert it to a vector image, and then cut it into their table top.
“Going from drawing a design to actually making the physical object is really powerful!”
MB: How does your work differ with different age students?
MA: The grade seven and eight students just touch on the software (Mastercam) and I have a template made up which they follow so the learning curve for them is easy. As we go up into higher grades the students struggle with the software part of the design. They have to design their own projects —no blue prints — and draw them in 3D using Mastercam, and then draw out the layout on virtual plywood and assign tools and tool paths etc. Finally, they cut them out and assemble the projects. They do all of the tool paths, verification, bit selection, etc. Together we post them and check for errors before the file part is actually run.
“With the 7th and 8th graders, I’ve found that making projects reinforces their understanding of basic math. Working with the 9th graders and above, I start to introduce engineering principles — and as we make more and more complicated items it really inspires them.”
MB: Can you describe some of the projects?
MA: Sure. Some of the projects we have done in the past have been anything from simple signage, cabinetry, some 3D items such as making stepping stone molds, fish hook molds out of aluminum, basically anything we can think of. I hope to get into the 3d stuff more which would include making molds for Jell-O, chocolate etc. We have a vacuum forming machine so we would make the mold from wood and then vacuum-form the actual Jell-O mold around it.
Testing the shape for guitar design with the ShopBot
Student shows off finished guitar
MA: Another project, which I am trying to develop further, is making a “Rube Goldberg” puzzle where the students have to construct stuff on the Shopbot to make some sort of goofy apparatus. An example would be putting a candle out by starting with the snap of a mousetrap, which would trigger another action. This would continue for numerous steps until the candle is extinguished. We have done marble machines in the past using the Shopbot to cut the gears, pulleys, etc. These machines continually rotate marbles through different mechanisms and are an awesome project for developing problem-solving skills.
Mike continued, “I like to develop projects which force the students to think rather than just giving them something where they have to follow the measurements or someone else’s design. Students nowadays do not have many chances or situations where they have to think things through from start to finish. In a world of instant gratification, this is rare.”
A few more samples of the impressive work these students are making:
Bam! Pow! Zowee! “Holy Industrial Arts class, Batman!”
MB: How has your experience with the ShopBot been?
MA: We first purchased the Shopbot approximately 15 years ago and it was definitely the best decision we ever made. With the machine, we have opened up a complete new spectrum of opportunity for student projects. We have used it as a cutting tool as well as a marking tool for laying out sheet metal designs. In addition, I teach basic electronics and we have used it to cut out circuit boards when needed. I have had discussions with past home economics teachers about even utilizing it for laying out full size-clothing patterns that the students could use in designing and manufacturing personal clothing. The possibilities of the Shopbot are only limited by the imagination.
MA: The machine’s operation has been practically flawless. Over the years, we have upgraded to a spindle, which we found necessary to reduce the noise level in the shop, and we upgraded the internal board to decrease cutting times. We occasionally lubricate the gears and that is about the only maintenance we do. I constantly use the Shopbot forum and the expertise of other owners to help me develop new ideas, and techniques. When we purchased the machine, I had zero knowledge of the CNC process and reading the forum greatly made it easier for me to get into it.
MB: As I am the only Industrial Arts teacher here in McCreary it gets crazy working with the students as there are many of them and only one of me! Usually there are one or two students who seem to catch onto the process faster than others and I try to use them as a resource to help their struggling classmates. Each of our students designs a different project so there are very many individualized questions to answer; so these advanced students are greatly appreciated!
MB: At first when we purchased the Shopbot, we treated it like a “stand alone” piece of equipment with specific functions. Now it is regarded as just like another piece of equipment in the shop to get the job done with and that is my intention. It is so involved in industry that using CNC equipment should be a standard skill coming out of high school shop programs, just like using a table saw, or any other tool. Students now see it as an opportunity to make even “cooler” projects and they do!
MB: What software programs do you use?
MA: The programs, which we use with the Shopbot, are Mastercam and Vector Magic. Mastercam is a great program, which allows us to do the cabinetmaking, sign making, 3D work, etc. all within one program. It outputs the Shopbot code directly and allows us to use multiple tools in one posting which is nice. Vector Magic is a fantastic program for allowing the students to download a piece of line art and convert it to vectors. It is amazingly simple to use and I would recommend it to any teacher using CNC. It took me 15 years of trying others but is for us by far the best we have used up to date.
MB: Do your students use the ShopBot to make products for fundraising?
Student shows off Monopoly game and table she worked on
MA: Yes, absolutely. In the past, we have used the Shopbot to mass produce items to sell at fundraisers. Our last project was a board game which sold really well. After the shop deducted our expenses, each student took home their share of the profits to spend as they please.
The grade nine students worked together with me to research our small town customers in regards to age, gender, finances, etc., and then came up with some product ideas. After quite a bit of discussion, we chose to design and sell a game board similar to a “Sorry or Aggravation” type of game.
MA: The students and I then designed the game and started up an assembly line with the Shopbot doing the cutting and the students the finish work. We placed the product in some local businesses and sold some at the school Christmas concert. They all sold and it was a great entrepreneurial learning experience for the students, and was that much more successful because we had the Shopbot to utilize.
Students used their software and ShopBot to design, carve and inlay a Monopoly board game
MA: Overall and to sum it all up here, I can say that having the Shopbot was a huge boost to our program. It does make teaching the class much more challenging but the rewards are much greater. The students are actually designing their projects and putting a great deal of thought into them, which to me is what we want as teachers. The parents are amazed at the quality of projects going home and to be honest so am I sometimes.
I rarely get students here who have ever really “built” something. However, by the end of the program they are taking stuff home that will be passed down through the generations. They are immensely proud of their accomplishments as well as they should be. They work hard, make mistakes, re-do it and in the end they have something to show off — something that “they” did and it wasn’t the instant gratification that is so relevant in kids’ lives today.
MA: They gain confidence in themselves and that confidence spreads to other areas of their lives. Frequently those kids who do not get higher marks in other classes are the ones who excel with the CNC aspect of the program including the Shopbot. They find it interesting so they work harder at it and then they become the “go-to” students for the other students in the class who may be having difficulty in the shop. These students help out with the Shopbot operation and you can see their confidence grow every day.
You can learn more about full size ShopBot Tools here. And visit ShopBot’s education page for more information about integrating digital fabrication technology into your classroom.
That’s Ben Harris on the right, grabbing a selfie with Bill Nye “The Science Guy” at the first ever White House Maker Faire, Spring 2014
Bennett Harris (who goes by Ben) is probably best described as a Renaissance man of education. He tinkers, he designs, he builds, he teaches, he’s a tireless evangelist for STEM (Science, Technology, Engineering and Math) Education and its cousin STEAM (add the A for Arts, since it’s all linked), and he puts it all together with his Reinventing Science kits that help capture the imagination and interest of young people in the principles of science. He builds these kits together with the help of a ShopBot Desktop tool.
We caught up with Ben recently to see what he’s been up to — it turns out to be a lot (as usual!)
The successful Kickstarter for “Reinventing Science.”
The most recent great news is that Ben has achieved a successful Kickstarter campaign in support of expanding his manufacture and marketing of Harris Educational’s “Reinventing Science” kits. Ben said, “You may be old enough to remember, that in the 1950’s and 1960’s companies like A.C. Gilbert and REMCO made educational science kits that were sold as popular toys. Kids were excited about the Space Race, parents were supportive of their kids learning new high tech and high science concepts, and schools were racing to be competitive in the fields we now call STEM.”
“Somewhere along the line we seem to have lost that hands-on spirit and as kids became more interested in computer and video games the science kits started to dry up,” Ben explained. “At the same time schools started to do less hands-on science and hands-on projects. ”
“There are science kits available today for school use, and some on big box store shelves, but I’ve found that too many of them seem to be low dollar, low quality throw away items with few (if any) instructions. The majority of them aren’t made in the USA either. I want to change all of that and bring back quality, durable, educational STEM kits for both home use and for schools. At the same time I want to convince parents, kids, and those investing in our future through education that STEM is important and worthy of investment!”
Sounds like a great cause. Here’s the video from the Kickstarter effort:
“Reinventing Electromagnetism” (see picture below) is Harris Educational’s newest STEM kit. It includes everything (other than a battery) necessary to build a working single-loop simple DC motor and multi-turn compass galvanometer. Includes powerful neodymium magnets. Teaches concepts of magnetism, electromagnetism, electric current.
“Reinventing Edison” (below) is Harris Educational’s first and best selling STEM kit. The kit lets you recreate the steps Edison (and other inventors) took to create the first practical incandescent light bulb. Experimenters use a safety vacuum chamber and hand vacuum pump to work with several included filament materials (including Carbon Pencil Lead, Tungsten, and others). Along the way you learn about voltage and current, air pressure, history, invention, properties of matter, and more.
Commitment to North Carolina education.
One of Ben’s goals with the Kickstarter is to help fund his effort to build a permanent Maker space, with an educational focus, in his hometown of Burlington, NC. A proud graduate of the Technology Education program at NC State, Ben is devoted to bringing inspiring science education to his community. He was the engine behind the first Alamance mini-Maker Faire and continues to be involved in growing this event. He’s now searching for a permanent home for a Maker space where he can build his kits, teach classes, and invite other educators to get involved in offering hands-on learning to young people (and older!).
Ben is involved as a volunteer with the EV Challenge, which was founded in North Carolina back in 1996 and has been a very active program ever since. Ben explained, “The mission of the EV Challenge is to energize high school students about engineering through a real world electric vehicle program.” Students who get involved get the opportunity to build real, full-size plug-in electric vehicles, participate in a yearlong educational program and competition, all the while learning numerous skills including: applied engineering and environmental science, electrical troubleshooting, public speaking, and community service.
The EV Challenge has a great intro video on this page of their website.
Ben has created and produced a product, The EV Challenge Troubleshooting Simulator, that’s now in use as part of the EV Challenge curriculum. Ben said, “The EV Challenge is a high school program where kids take donated gasoline vehicles and convert them into fully electric vehicles. The students then compete in a race event that also includes a troubleshooting challenge.”
“Harris Educational created this trainer so that every school in the competition could afford to have one in their program. It is designed to teach principles of EV circuits, failure modes, and logical and safe troubleshooting skills. It is my hope that the EV Challenge program will grow to include more schools and more student groups from around the country — and also, when we’re able to open a permanent Maker space, we can be helpful to the EV Challenge students at this venue.
EV Challenge participants using the simulator
The EV Challenge website explains that participating in the Challenge course and events ” is often a life-changer for students and has a significant positive impact on their experience of science and engineering. Recent research indicates that:
• 84% of the students become more confident in their ability to learn science.
• 68% of the students become higher performers in their science class.
• 34% of the students are more likely to pursue a career in engineering.
• 30% of the students are more likely to pursue a career in science.
The program is currently serving high schools in Virginia, North Carolina, Florida, West Virginia, and Iowa and would like to grow to include a national reach.”
A couple of photos Ben has taken of EV Challenge events…
Students troubleshooting wiring issues on an EV
Making last minute repairs and updates to this STEM Cycle from Dudley High School in Greensboro, NC
All of this commitment led to a very special invitation this past Spring…
White House Maker Faire!
On Wednesday June 18th 2014 President Obama declared a “National Day of Making” and hosted the first ever White House Maker Faire. Ben said, “I was very honored and proud to be invited to the White House as an ‘Honored Maker’ for the work I’m doing with Harris Educational, The Alamance Makers Guild, The Burlington Mini Maker Faire, and my Maker Made STEM kits. Kudos to all of the creative and talented folks who were picked as exhibitors for this event! Very Inspirational Day!
President Obama addresses the Makers
Kudos to Ben for his work! You can learn more about the kits at his website, Harris Educational. And learn about the ShopBot Desktop here.
Winter’s coming and the holiday season is almost upon us. We’re calling all “Handibotters” and “ShopBotters” to participate in our first annual:
How does this season inspire your creativity? We invite you to CNC it and share it! Whatever holiday you may celebrate, share your CNC project with ShopBotters and Handibotters everywhere by helping us decorate our tree at ShopBot World Headquarters in Durham, NC. Have fun with your materials and supplies, and show us how you celebrate this special time of year.
Be creative and have fun! We ask that you make your item using a ShopBot or Handibot as the primary tool – feel free to use other techniques and tools as well.
We’re building a CNC’d tree at ShopBot that we’ll use to display all submissions. With this in mind, your creation should be similar in size to a tree ornament (no larger than 3”–8” on any axis) and weigh less than 1 pound. It must fit in a flat-rate box or envelope for shipping. Your final design can be 2D or 3D, as long as it fits within the rest of the parameters.
Submissions must be received by Dec 15th, 2014.
The tree will be fully decorated by Dec 22nd, 2014 and a photo of the completed tree and the design submissions will be posted to the ShopBot blog and Facebook page. The tree will remain up through New Years 2015.
Please send your item (packed carefully) to:
ShopBot Tools, Inc.
Attn: Holiday Decor Challenge
3333 Industrial Drive
Durham, NC 27704
Please include your name, email, and any information you’d like to share on how you made your piece and any references to resources and materials you used to design and create the submission. Tell us your story, about your inspiration for the project. You and your design could wind up being featured on the ShopBot blog some time in the near future!
THE FINE PRINT (Please Read!)
We encourage you to upload a photo of your submission on the ShopBot Tools Facebook page, but this is not required to take part in the challenge.
By submitting your CNC holiday decor challenge entry, you are authorizing ShopBot to publish your project in upcoming publications and promotional materials, on our websites and in our other e-media, as well as to possibly display it at shows.
We welcome the use of open source or licensed projects, as long as your submission does not include any elements that are protected by copyright without the expressed written permission from the person or institution that holds the copyright.
ShopBot will not be held responsible for loss or damage due to circumstances beyond our control.
Contact Jeanne Taylor at email@example.com with any questions.
Just about any time of day, any day of the week in Balstrop, Louisiana, you’ll find an industrious production facility with 4 ShopBot PRSalpha ATC tools running at full tilt. About 11 years ago, James Brent (Pastor Jim) was called into the ministry and felt compelled to witness to people in need; specifically people who weren’t already involved with the church. “It wasn’t really on purpose that I started all of this…” he explains, “As we started witnessing to drug addicts and wanted to help, we decided early on that a few church services weren’t enough to turn their lives around.” And thus Freedom Challenge Ministries was started.
Freedom Challenge Ministries has had hundreds of graduates of its faith-based, year-long program committed to helping men (and women in its sister program, Morehouse Women’s Challenge) overcome their struggle with life-controlling addictions. Some individuals are court-ordered into the program, but many come on their own. Freedom Challenge Ministries offers a safe, controlled environment — for an extended period of time — with little or no cost to the families, and operates completely on charitable donations.
In the early days, when looking for ways to get the word out about the ministry, as well as fund it, “some of the men decided to make crosses using jigsaws.” Floyd Arnaud, Director of the Men’s Group, explains, “we had collected scrap wood from a local cabinetmaker and about 6 guys cut out crosses one-by-one.” After selling the crosses in local Walmart parking lots for several weekends, and handing out flyers about Freedom Challenge Ministries mission, the popularity of the crosses grew to the point that they quickly exhausted the cabinetmaker’s supply of scrap and had to begin buying material to produce the crosses.
After services one Sunday in August 2009, Pastor Jim had a thought: “Let’s make a football cross, and paint it in the Saints colors!?!” To say football is big in Louisiana would be a huge understatement. The 2009-2010 season for the Saints was one to remember after years and years of disappointing seasons – the first Super Bowl win took the team and the region to new heights and hope. The Saints-painted crosses were a huge hit and essentially launched the need for a more automated and streamlined manufacturing process. Pastor Jim, through the recommendation of a colleague, contacted ShopBot Tools to learn about ShopBot and eventually lead to the purchase of their first machine. Pastor Jim recalls his first conversation with Dianne in sales at ShopBot. “Dianne asked lots of questions about what we were trying to do and gave me information about the tools. She also encouraged us to look at other CNC’s to be able to compare. The fact that ShopBot makes their own tools so they really understand them, have affordable pricing, and that they have excellent tech support made ShopBot our choice.”
These days, Freedom Challenge Ministries has nearly outgrown the 20,000 square foot shop and fabrication facility that allows the men to work onsite together to generate the products that help pay for their living expenses. Creating over 70 different cross styles and sizes is only a portion of the many wood veneer and MDF ornaments, tractors, animal, decorative shaped products they create and sell. Jake, who went through the program himself 7 years ago, has stayed on at FCM and is the main operator and shop coordinator of their CNC machines. Even taking the tools offline for some software updates and tune ups can put them behind on orders that come in daily.
Each weekend teams of men package up crates upon crates of painted, stained and decopauged crosses and other items that are taken across Louisiana and Texas to Walmart store fronts,. Once each month, truckloads of product are taken to the Canton, Texas, flea market where Build-A-Cross has a permanent storefront along with several booths selling everything from their crosses to monograms to grab bags of “filler” containing every imaginable wooden shape. They are also rapidly growing their internet business, which often makes it difficult to keep inventory stocked. Orders come in daily and are regularly produced and shipped the next day.
Outreach is continuing to expand. The demand for their crosses and other products has never been higher. Pastor Jim believes this is just the beginning of their outreach and ministry possibilities locally and beyond.
To learn more about this organization visit:
To see some of the products they make and sell visit:
To learn about full-size ShopBot PRSalpha tools visit:
Designer/Manufacturer Sidney Molepo
Film actresses Jessica Chastain (“The Help,” “Zero Dark Thirty”), Cody Horn (“Magic Mike”), and internationally renowned singer Celine Dion have something in common: their love of Sidney Molepo’s unique shoes and fashion accessories.
Mr. Molepo, who was educated as an architect and furniture designer, in recent years has turned his attention to the smaller, personal items that people can use and interact with every day.
Sidney says, “I create unique handmade fashion accessories. I recognize your individuality and am committed to designing and making products that meet your values and unique personal style. Now you can be red carpet ready with your very own piece of handmade luxury!”
He’s not kidding about the red carpet. Here, actress Cody Horn clutches a Sidney Molepo clutch.
It begins with a pencil sketch
Each clutch features vegetable-tanned leather, hand-died with eco-friendly pigment, and natural or black-stained walnut accents. Each clutch is completed with metal hardware details and magnetic clasp closure. Sidney adds, “With the ShopBot Desktop, I cut the wood pieces and also use a v-grooving bit to engrave my logo on the sides of the clutches.”
Clutch from various angles…
Sidney works out of the studio that he has built in his home in Montreal, and shares his story: “I was born in Ramotswa, Botswana, and raised in Ottawa, Canada. I am the son of a political refugee, and due to Apartheid in my parents’ native South Africa, my family and I immigrated to Canada. As a child, I spent my time drawing, and making toys from found materials.”
“This creativity led me to pursue a degree in architecture,” Sidney continues, “and to discover an interest and talent in designing and making solid wood furniture. This passion led me to New York City where I was fortunate to work with notable furniture and product designers. Among them was designer Dakota Jackson, and it was while interning there that I first became exposed to CNC— a large Thermwood tool. This was an eye-opener for me and I started to dream about being able to own my own digital fabrication equipment to add to my collection of traditional tools.”
While living in Brooklyn, and inspired by the creative culture around him, Sidney became intrigued with the possibilities of how his background as a furniture maker could translate into making unique fashion accessories using wood and leather.
Bag made of leather and ash veneer wood. Sidney had been invited by celebrity stylist Elizabeth Stewart to contribute an original handbag to be auctioned at The Bag Lunch charity event of PS Arts.org, a non-profit dedicated to improving children’s lives through arts education.
Detail of wood, cut and engraved with the ShopBot Desktop
One of the first sketches for the bag
“I first became familiar with ShopBot Tools while living in Brooklyn,” Sidney explains. “I saw an ad in MAKE magazine for the Desktop tool and was intrigued to see the power of CNC being offered in a small package — potentially just right for the work I envisioned. I looked at some competitor tools, but what led me to decide on the ShopBot Desktop aside from its affordable price point, was that I saw that it is a heavier, more robust tool than others, and I like that it functions at 110 volts so it truly can be a small studio-based / home-based tool. I can easily say that I wouldn’t be able to bring my products to life without the ShopBot!”
Using the ShopBot Desktop in shoe design and fabrication.
Sidney explains, “I use the ShopBot in various ways to make my sandals. For instance, one necessary element in making a shoe or sandal is the shoe last. The last is a mechanical form that has a shape similar to that of a human foot — you use the last as a mold around which to create the leather upper portion of the shoe.”
“Shoe lasts are expensive, and so thanks to CAD and digital fabrication with a ShopBot, I can now make my own lasts for use in shaping the leather straps for my sandals” says Sidney.
Creating a digital probe of a shoe last on the ShopBot Desktop
He continues, “I use the digitizing probe to scan the bottom of my existing shoe lasts. I then bring the information into Rhino 3D and I’m then able to design the outsole for my sandal wedges around the exact geometry of the bottom of the last. Once I finalize the design, I then use Cut3D to generate the toolpaths and then I machine the walnut blanks into finished outsoles on the Shopbot. And thanks to the accuracy of the initial probing, the machined walnut outsoles fit perfectly to the bottoms of the existing lasts.”
“In Rhino, I also use the digital info that the Shopbot made of my existing lasts to design the bottom and top halves of the mold for the bent veneer laminations that form the outsoles of my Dumela and Phepa sandals.”
Machining a mold segment for sandal
A completed outsole laminating mold
Carving a footbed prototype
Machining the walnut outsole for the Tlou sandal
Take a look at some of the finished work. This is the “Tlou” sandal.
Two views of the Tlou sandal.
This is “Phepa”
Phepa sandal, two views.
Sidney explains that all of the leathers used in his designs are vegetable-tanned, with no chemicals such as chromium sulfate. He continues, “I design templates for the leather patterns in Rhino and then I create the 2d toolpaths in VCarve Pro, which I then run on the Shopbot. I cut the templates out of 1/4″ birch plywood with an end mill bit. I then manually cut the leather patterns using the templates. I had planned on buying the Donek drag knife, so that I could cut leather directly with the Shopbot…..but I never got around to making that purchase… maybe in the future!”
In addition to using his Desktop to engrave his logo on clutches and show outsoles, Sidney will engrave the lid of the shoe boxes. Here’s the one he made for Jessica Chastain.
Shoe box for Jessica Chastain’s sandals
Molepo has also created Mopedi Body Balm, a hand cream made from beeswax and food safe mineral oil. “I use the ShopBot to machine the birch lid for the bottles. Also, the logo on the lid was printed with a rubber stamp I made on the Desktop, using a v-grooving bit.”
Looking ahead, Molepo is hoping to have his work discovered by more high-end clients, and is working to pitch his unique creations to small retailers.
“That ShopBot has created these tools that are so precise and powerful, and made them affordable to a small business like my own just starting up, is a blessing!” To learn more about Sidney’s work, visit www.sidneymolepo.com. Learn more about the ShopBot Desktop here.
Gustavo Bonet, architect and designer. He helped out at the ShopBot booth at this year’s Maker Faire NYC
Gustavo Bonet is a traditionally trained architect who started making furniture in Florida before moving to NYC to get his Masters in Architecture from Columbia University. Gustavo says, “During my time at Columbia, I developed an interest and skill set in digital fabrication and parametric workflows. That drive came as a result of needing and wanting to understand how 3D digital designs are made.”
“It started with an elective course in casting plaster, where I began to dive into digital fabrication. The desire to design for digital fabrication has since then driven the direction of my professional career as an architect here in New York.”
I spoke with Gustavo recently to learn more about his work. (You can see a lot of it at his Instagram site.)
Gustavo says, “The best way to describe the work I do with my studio is, we are the ‘fixers.’ We serve our clients (architects, interior designers, artist, private clients) with tangible design solutions for executing/ materializing their designs.”
“Usually clients contact us because they can’t find anyone to execute a design due to cost, lead time, or complexity of the work. For every project we work on, we provide solutions that include digital fabrication. This has led us to always be working on a range of items from products, custom installations, and modern furniture. The studio is fully equipped with a ShopBot PRT, all the tools of a modern shop, and a team that can parametrically or traditionally design really anything presented to us.”
The studio is run with the help of his project manager, Diego Rodriguez, who was a student of Gustavo’s at Columbia. One of their recent projects is the design and fabrication of custom dishes. The studio was contracted by a hospitality designer to collaborate with the chef of a famous NYC restaurant (sorry, it’s apparently a secret), who wanted a custom butter dish and dessert dish…
Corian beurre dish
“I created designs working in Maya, then imported the work into Rhino. We sourced dark and cream-colored Corian and began to prototype. After the prototype stage, we’re now working with 3/4″ Corian and are CNCing them in batches of 20 dishes. It takes about 20 minutes to first cut the top of the dish, then we flip the material and cut the bottoms.”
Another recent project involved fixing a white oak credenza that was suffering from poor shelving design, leading the piece to begin sagging. “We re-did the design of the interior shelving and shelf slots in order to make the piece sound. Digital design and CNC saved the day!”
White oak credenza project
Detail of CNC’d shelving for credenza
Below are Gustavo’s interior furnishing designs that were commissioned by Public Supply of Brooklyn, NY. Public Supply is a for-profit company that produces responsibly sourced and well crafted writing, art, and office essentials. From their site, “We channel 25% of profits from every sale to a teacher in a high-need classroom, who will use the money for a project that drives creativity. All design work on our products is done in Brooklyn, New York, and all products are sustainably sourced in the United States.”
Public Supply furniture; counter of Baltic Birch, naturally stained. 1/4″ marble top
Shelving of Baltic Birch
Finally, here is some of Gustavo’s parametrically designed work, creating a water ripple effect for CNCing 6 X 6″ MDF panels, for a civic project in Queens.
In addition to his studio work, Gustavo teaches “Intro to Digital Fabrication and Parametrics” at CUNY in Brooklyn, where he works with 3rd and 4th year architecture undergrad students. I asked him to give me the “Parametrics for Dummies” quick explanation of the concept of parametric design. He says the way he begins to explain it is with a metaphor of Pixar’s animated filmmaking. “Basically, think of it as working in 3D geometry. To create a face for instance, you begin with writing the code to create the spheres that together form the pieces of a face. You start with code and ‘work outward’ to the finished idea.” Works for me as a starting point!
Andrew Pitts of Heathsville, Virginia, is a self-taught studio furnituremaker with 38 years experience. His beautiful, detailed furniture has been featured in numerous exhibitions and garnered more than a dozen awards. He is an active member of several local Virginia artists’ associations and the national Furniture Society. With his many years of experience, Pitts only recently added CNC technology to the mix, with his purchase of a ShopBot Desktop CNC router about a year-and-a-half ago.
For Pitts, the reasoning behind adding CNC to his extensive workshop was a practical business decision. “I view the Desktop as just another tool in my shop, and it’s perfect for certain tasks that make my work easier. One of the ways that I make use of the Desktop is to make small items — that I traditionally only hand-carved — a more efficient process.”
Among the many offerings that are displayed on Pitts’ website, are small customizable plaques, many of which sell for less than $100. “Quite frankly, the carving with the Desktop is wonderfully precise, and its efficiency enables me to make more plaques quickly,” says Pitts. “These plaques are conversation-starters with my customers. If I can interest someone in visiting my shop to discuss a $49 plaque, then that opens the door for me to give a tour, show my larger pieces, and who knows, end up talking about a commission for a $4900 credenza.”
Here’s one of those $49 plaques, made of cherry wood.
The Deer in the Forest. This piece is individually carved to order on hardwood by a computer numerical controlled (CNC) routing machine, touched up with hand carving gouges, sanded, then finished.
Pitts’ prior career was in the Navy as a nuclear engineer, and he says that the Navy unexpectedly prepared him for success as a designer. Pitts explains, “The discipline necessary to command three warships over the course of my career, and operate aircraft carrier nuclear reactors, translated into an astute attention to detail and pursuit of perfection in my wood work.” Inspired by his time of service, Pitts designs and crafts many service-related pieces:
Officer’s Sea Chest and Shadow Box. Materials: cherry, white oak, red cedar, holly. Ebonized oak with shellac polish finish. Brass hardware.
16″H x 32″W x 20″D
Andy Pitts explains that the precision afforded by the ShopBot Desktop enables the construction of the drawer openings and other openings that you see on this Officer’s Sea Chest. “Precision is astounding,” Pitts remarks. “I visit the ShopBot Forum quite a bit for tips, and have found people talking about using 1/64-inch ballnose bits on the Desktop. It’s quite remarkable what this tool allows you to accomplish.”
Naval Surface Warfare Officer Insignia Box.
Walnut with Brass Hardware, Lacquer Finish
12″W x 10″D x 3″ H
Here are some of the furniture pieces that Andy Pitts designs and makes:
“From The Bay” blanket chest. Cherry, walnut, white oak, red cedar, tulip poplar
Shellac Polish Finish
36″H x 51″W x 20″D.
Finalist, 2011 Niche Awards
“From the Bay” chest, open view.
The ShopBot Desktop is likely the smallest tool in Andy Pitts’ “arsenal” of woodworking tools, especially when you consider that he has even milled his own lumber — with enough wood to last for many years of projects. Here are photos of his lumber sawmill, which he recently sold, and his solar lumber kiln:
A committed steward of the environment, Pitts uses pre-fallen hardwoods local to the studio, harvesting, milling and drying them himself. Pitts explained that he “wants to celebrate the wood’s inherent beauty, respecting its imperfections and variations. I use only clear finishes, avoiding stains that might mask the grain.” One can recognize a Pitts design by the grace of its curves, exquisitely matched grain patterns, exacting joinery and meticulous finishing…
“I admit that I put off adding digital cutting technology for a few years,” says Pitts. “A lot of traditional woodworkers frown on CNC as ‘cheating’ somehow. When I bought the ShopBot, some furniture making colleagues told me I’d gone over to the ‘dark side,’ — I think they were only half kidding! I have to say, that throughout history furniture makers have adopted the most efficient tools of their time. If CNC technology was around 100 years ago, professionals would have used them then. It’s just another tool!”
Pitts says he was heartened to see some very well known furniture makers in attendance at the Furniture Society conference in Washington State who have adopted CNC for precision carving. “I think we’re starting to turn a corner, where more and more furniture makers who consider themselves to be artists are unafraid to integrate CNC into their processes.”
Andy has a very full library of YouTube videos in which he shares his work process; they’re not “how to” videos but rather allow you to watch as he works. Here’s just one of them, in which he gets going on one of his first projects on his ShopBot Desktop. Andy says that the YouTube channel has been very helpful in spreading the word about this work.
ShopBot Standalone Indexer Tool
ShopBot is known for making high quality CNC tools at levels of complexity and cost that are approachable to individual users. These tools perform full 3 axis CNC machining operations on a wide range of sizes and types of material. Adding an indexing head, often called an indexer or 4th axis, increases these capabilities even further. With the indexer installed, the ShopBot can be set up for turnings, multisided operations, and full 4 axis machining. With these capabilities, the ShopBot can create parts that would have been time consuming, or even impossible with conventional 3 axis machining.
Often, when people first see an indexing head setup they think of it as a lathe. The indexer setup has two significant differences from a standard lathe. First, the spinning bit provides cutting force instead of the rotation of the work stock. With the bit performing the cutting action, the turning axis is freed to move at any rate needed. It can be programed to move in the reverse direction and stop at any defined point in its rotation.
The other improvement over a lathe is that the ShopBot is able to move in 3 directions relative to the turning axis. Because of this, standard 3 axis cutting operations can be performed on any side of a work piece.
A case study application
Recently, a customer came to ShopBot Production Support seeking help with setting up to cut custom rifle stocks. Rifle stocks are a great example of parts that can be made more quickly and simply with a 4 axis tool. They require cutting operations on at least three separate sides. On a standard tool each step would require careful tool and material setup. The piece would have to be picked up, rotated and, precisely repositioned after each cutting operation. This process takes time and invites error. With an indexer, a file can be made that performs all of these steps with no stops to reconfigure the workpiece.
While working to create a procedure for this specific application, we found that there was an opening in our lineup for an indexer specific version of a ShopBot. We developed this tool in parallel with the application project. We were able to identify many issues that the increased complexity of a fourth axis brings up. These lessons heavily influenced the development of the tool and future indexer applications.
Machining a rifle stock
Big capability, Small footprint
The intent of the Standalone Indexer Tool was to provide full 4 axis machining capability in a tool with a much smaller footprint than the conventional 96 by 48 inch setup. At first the plan was to build a CNC lathe with only three axes. These would be the turning axis, the longitudinal axis, and the vertical axis. This resulted in a machine with great turning ability but did not allow milling work to happen on any specific face.
Adding the fourth transverse axis allows an end mill to extend deep into a part and create precise 90 degree milled pockets, and important feature for inletting metal receivers into rifle stocks. The extra axis also allows the tool to be used for conventional 3 axes routing when an optional deck is installed.
Low backlash gear head
Chucking up a large piece of stock revealed a limitation with the existing indexer gear head. The backlash in the head was 15 arc minutes. At 4 inches off center this movement resulted in approximately 0.020”. In continuous turning operations with pressure exerted in one direction, the backlash was not an issue. However, when doing two sided machining the slop created an issue with tolerance error.
Citing this issue, a low backlash gearhead was selected. This head reduced backlash to less than 3 arc minutes. The side to side movement reduced to below 0.005 inches. This change allows multi-sided and multi-direction machining.
In addition to the gear head we developed procedures to speed up the zeroing process. Zeroing the tool with a set routine allows fast and repeatable setup for production operations.
Indexer head and tail stocks
Custom tool configuration
The modular nature of ShopBot tools allows a great variety of customizable configurations. The Standalone Indexer is one example of this capability, and uses only a handful of specialized parts. If you have a need for a tool that doesn’t quite fit into our advertised lineup feel free to contact ShopBot. We will discuss your needs, offer some suggestions, and issue a quote on a tool that exactly meets your needs.
L36” x W96” x H67”
Nominal Cutting area
L20”x W60” x H6”
Actual Full Motion Area
L21” x W62” x H8”
Maximum Turning Area
Maximum Radius 4.75”
Maximum Length 48”
Square Stock 6”x 6”
The ELF by Organic Transit, outside of their headquarters in Durham, NC
If you’ve been walking or driving around the revitalized and thriving downtown Durham, North Carolina, in the past year or so, then sightings of a colorful, pedal- and sun-powered trike called the ELF won’t surprise you. As described on Organic Transit’s website, the ELF is the company’s first product and already a big hit: “The ELF is a solar and pedal hybrid vehicle powered by you and the sun. It’s a revolution in transportation and gets the equivalent of 1800 MPG. Hand built in the USA, the ELF is legally a bicycle, so it can travel on bike paths, park on sidewalks and requires no gas, license, registration or insurance. It can travel up to 20 mph on electric power only and up to 30 mph when combined with pedaling. It can hold more than a dozen bags of groceries and can handle an amazing 350 lb. payload.
What’s also cool is that this innovative company has been collaborating since the beginnings of the ELF “project” with another forward-thinking Durham company, ShopBot Tools. More on that relationship in a moment; first you really need to take a look at the ELF in action. This is a good piece from UNC-TV from June of 2013; the design of the ELF has evolved some from what you see in this news story, but take a ride…
As noted on Organic Transit’s site, the ELF features: “a beautiful Trylon composite body combined with rugged carbon fiber provides weather protection, visibility in traffic and is much safer than a bicycle. Advanced LED headlights, brake lights and turn signals make the commute, trip to the grocery store or coffee shop fun and safe. The 100 watt flexible solar panel assures charging assistance anywhere the sun shines.”
“Because of the radically efficient design, the ELF is the cleanest possible mode of transportation for the environment. If the ELF is used regularly, it can prevent as much as 6 tons of CO2 from entering the atmosphere each year. That is the equivalent of a 100% solarized home at a fraction of the cost!”
“The healthy, efficient, economical, weather protecting, cargo carrying ELF is perfect for commutes, resorts, shopping excursions, gated communities, college campuses and urban living. It is indeed a revolution in urban eco-mobility.”
How it all started.
Rob Cotter, Organic Transit Founder and CEO
The concept of the ELF is the brainchild of Organic Transit’s Founder and CEO, Rob Cotter — and the idea has been stewing for a long time. Rob started out in California working on Porsche and BMW race cars. Not far away, Dr. Paul MacCready built the Gossamer Condor, a pedal powered aircraft. Rob become fascinated with the technology and built a 60 mph pedal powered trike. Highway speeds at fractional horsepower became an obsession. Rob became VP of the International Human Powered Vehicle Association and directed the first solar car race in the US. With support from GE and DuPont to develop composite and thermoforming technologies, Rob built or contributed to numerous innovative vehicles. After consulting on Bike Sharing technology for NYC, it became apparent there was now a viable market for an ultra-efficient vehicle that was between a bicycle and a car. That was the beginning of the ELF.
The ELF gained serious traction as a Kickstarter project meant to create buzz, early interest, and funding for a first production run of ELF vehicles. Rob expresses his team’s early passion for this project on the Kickstarter page: “We dreamt of a world in which people and goods could move from place to place cleanly and efficiently. We pictured a vehicle powered by humans and the sun that would revolutionize transportation as we know it. We called on a hugely talented group of friends to get involved; between us we have more than 100 years experience designing and building solar cars, bikes, and other human powered vehicles.”
Early renderings for the Elf
Rob says, “Together we set about putting ideas to paper. Over the course of a year, we came up with a design that was both stylish and efficient and brainstormed ways in which such a vehicle could change the world.”
Rob describes some of the early process, where the ShopBot first played a role in prototyping the ELF. “Making a model out of foam core and wooden struts is one thing, but making a body that can be used on a moving, functional vehicle is a whole different story. Once the team had convened and constructed and adjusted and tweaked it was time to turn the refined design into something more substantial.”
“We hired an industrial designer named Ermanno who took advantage of his membership at Tech Shop Raleigh-Durham to turn the CAD renderings into a full sized foam plug on a ShopBot CNC tool. Hundreds of hours of shaping and sanding later, the plug was coated with auto body paint to give it a smooth glossy finish that would be easy to pop out of a composite mold.”
Ermanno and the coated plug, cut on a ShopBot
Fast-forward to today: the Kickstarter is successfully behind them, well over a hundred or so ELFs have been shipped out to customers worldwide, and Organic Transit has moved a few blocks away from its original location. We caught up with Rob to talk about his vision of the company, its ongoing collaboration with ShopBot Tools, and his ideas for the future.
Rob Cotter with ELF
Rob: “As I mentioned we used the ShopBot in the early prototyping of the ELF, and since then we’ve acquired our own full-size ShopBot CNC tool and are using it in a variety of ways. We cut several of the flat panels for the inside and outside of the ELF; these tasks alone, cut on the ShopBot, save us hundreds and hundreds of hours over performing the cuts manually. We are also using our ShopBot to quickly create less-expensive molds for the vacuum-forming process, and also to cut quick dimensional models of our new product ideas. We’re looking forward to continuing to collaborate with ShopBot; their production team is really good at helping people improve upon various steps in the manufacturing process.”
Organic Transit’s ShopBot Tool
“We’re more a design firm than a manufacturer” When asked of his vision of the company and the possibilities for other new transportation solutions, Rob responds, “We view our business as designers; we’re driven by a passion to come up with useful new products for people and planet, with an eye toward how we can help people live healthier, reduce their carbon footprint, and ultimately save money along the way by using a more efficient form of transportation.”
When it comes to manufacturing, Rob says, “I want to do my part to enable local manufacturing. For instance, if you view this in a more traditional sense, scaling up might for example involve investing in a million-dollar vacuum forming tool, or outsourcing manufacturing overseas. But why go these routes when you can buy a used tool sitting idle in Ohio for 15 thousand dollars, bring in an expert to set it up, and find a space for it in a town that could use the economic boost. Right now we’re looking to do just this in North Carolina, and bring some good new jobs to a rural area.”
Ted Hall, ShopBot’s Founder and CEO, is excited to work alongside Organic Transit and is a big believer in this forward-looking view of manufacturing. “Our mantra at ShopBot has been to make the power of digital fabrication technology more readily accessible and usable by anyone. We make affordable tools that empower starting and growing a business. We love to see new technologies being put to work in innovative ways, and helping create new jobs.”
One possibility for the future of the ELF is to see it utilize the distributed manufacturing model. Rob notes, “I could envision one day soon shipping the pieces and parts of an ELF in a crate, along with an instruction manual, to someone participating in the 100kGarages.com network who owns a ShopBot tool. They could build their own ELF.”
Ted added, “You could also one day start to ship the ELF parts overseas to a FabLab in a less developed area of the world. FabLabs are outfitted with ShopBot tools and a whole array of digital fabrication tools, to help enable local manufacturing globally.”
This video is a good summation of Rob’s view of how Organic Transit can contribute to people and planet…
And finally here’s a recent review of Organic Transit’s latest model, the ELF 1.5, by ElectricBikeReview.com:
Learn more about the management, research & development, and design team at Organic Transit at their website. To find out more about ShopBot’s full-size CNC tools, click here. As mentioned in this story, ShopBot Tools provides custom production support services for manufacturers; learn more about how we can help you here.
The 2014 International Woodworking Faire took over two of the buildings at the Georgia World Congress Center August 20-23rd. Building B, where our booth was located, pulsed with activity. “There was definitely more traffic than in the past few years and we’re seeing more cabinetmakers looking to automate their businesses,” Ryan Patterson said.
Cutting and carving on the tools generated interest and questions from cabinetmakers, entrepreneurs, hobbyists, and soon to be retirees looking for second-career opportunities. Some attendees saw the machines in action and wanted to know more about how our tools can fit into their work flow.
Our booth showed a variable range in size and set-up of tools: the 4×8 PRSalpha ATC, a large indexing tool, and the ShopBot Desktop. We cut everything from logos, impromptu signs, baseball bats, to gun stocks, Swedish-style carvings and more.
The Handibot Smart Power Tool came with its own fan club, and allowed us to tell the story of where we see the Handibot’s development going and its supporting ecosystem, as well as share Handibot’s unique ability to “go with you” to the job site and to the material.
We were so happy to visit with the many Shopbotters who stopped in to chat, had a few questions and some that are considering adding another ShopBot to their productive operations. Nate Zellmer noted, “Over and over we hear that people use their ShopBots to help make money and that their machines have paid for themselves time and time again.”
Habitat for Bats makes bat houses and stays busy with selling and producing that product year round.
Wright Elevator Solutions uses their tool primarily to make parts for custom elevator car kits.
Ted Derryberry of 7.62x54r.net makes Plywood gunstocks, and during downtime makes intricate wooden bracelets on his ShopBot.
KidsFit Manufacturing makes furniture for kids that incorporates kinesthetics.
Shout-out goes to John Zehren of the Field Museum and Eric Schimelpfenig, SketchThis.net who were a tremendous help in the booth sharing their experiences. Eric’s impromptu SketchUp and Handibot advice was much appreciated. John brought with him models of animal skeletons and mummy cases from his work at the Field Museum in Chicago, as well as his infectious excitement for digital fabrication.