It’s a Fidget!

In an attempt to keep the kids involved through the end of the school year, I asked my students what they wanted to make with the ShopBot. You can probably guess what they said if you’ve seen what the latest craze is: fidget spinners. My response was fidja-what? They proceeded to introduce me to the new fad in toys. The next shiny thing will replace fidget spinners soon, but in order to establish relationships with the students, we began our fidget journey.

    

We ordered the skate bearings used for the fidget spinner mechanism in bulk, and set to work figuring out how to recreate this toy in our shop. We decided to use nuts as weights. Using an 1/8” straight bit, we used the ShopBot to cut a perfect hexagon. Even using a digital caliper on one of the commercially made spinners, it took a few tries (probably 15) to get spacing and openings perfect. Also, the weights have to be evenly spaced or the fidget will spin with a wobble. The first material we used was some reclaimed oak we took off an old shed next to the school. This made it feel like a woodworking project. We planed it down to the thickness of the bearing and cut it to fit the jig we made on our spoil board. This was our first lesson on the importance of using tabs, being that fidget spinners are pretty small. Tabs keep the material attached when making a profile cut and keep the batman shaped spinners from becoming flying batman throwing stars! We used a bandsaw to finish cutting the tabs and then sanded the edges smooth. We chose to use a Danish oil to bring out the oak grain.The downside to using wood is you have to maintain a certain thickness of material to keep the wood from splitting. Also, it is a harder balance of getting the bearing and nuts to be tight but not so tight that the wood splits.

The next material we used was some scrap sign board. This material was able to be cut without much material being left. The downside to using this was it would bend easily, the edges would cut you if you didn’t sand them smooth, and it lacked overall weight. The last material we used was plywood. Again this lacked weight and was harder than the oak to sand smoothly. However, it kept its structural integrity better than the oak on thinner material margins.

It only took one class period to teach the kids how to set up their project file and locate a few of the design icons. Most of the them chose to find an image from the internet and bitmap it into their own spinner design. We have 5 desktop computers set up in the back of my classroom. With 20 students we rotate through in groups to give each student a chance to design. I had about 2 students in each class that could brace the material, tool path the designs, and run the files on the ShopBot. That just left me having to zero out the Z-axis and do the initial bit change since we used the same bit for the pocket cuts and profile cuts.

Overall, this proved to be a good project for students. We got to work on design and problem solving. Our semester ran out before we were able to cut out most of the designs, but it served as a good reminder that what we produce in shop isn’t as important as the process and people involved.

(Re)Visiting Digital Fabrication Labs in Middle and Upper Schools

Alberta shopbot charlotte

Alberta shows off the sign she made on a ShopBot.

May and early June was the time to visit a number of digital fabrication labs in middle schools, high schools, and community colleges around the US. Some labs are fine tuning their plans after being in existence for a year or more, while some are just starting their journey.

PENNSYLVANIA

Southwestern Pennsylvania is coal country, with all of the economic consequences of a shifting way of life. It’s also beautiful there: small towns nestled into valleys connected by scenic mountain roads. The Chevron Lab at Intermediate Unit 1 (IU1) near California, Pennsylvania, has a thriving program. Follow them via Twitter (@IU1FabLab) to see how they are using the ShopBot CNC routers, laser cutters, 3D printers, and electronics to bring art projects and technology to students from kindergarten through high school. In one of his recent tweets, Brandon Prentice, guru of their mobile lab, showed a living wall created by art students with the ShopBot Buddy® that is a part of the mobile lab. The stationary lab at Colonial Middle School also has evening classes and workshops for teachers, students, and community members to learn about digital fabrication and making.

Assembling a living wall.

Parts machined on a ShopBot Buddy.

IU1 recently added three Handibot® Smart Power Tools (with rotary indexers) to their suite of digital fabrication tools. One will reside in the stationary lab, one will ride in the mobile lab, and one will be available at a tool lending library. The Handibot in the stationary lab will be drawn into service for creating circuit boards, as well as being available for machining in 3D for molding and casting projects. Brandon really likes the Handibot app, Smooth Sketch, for working with the very young students (K-2).

NORTH CAROLINA

Charlotte Mecklenburg School System added digital fabrication to their curriculum in the 2016 – 2017 school year. Two high schools have ShopBots: Phillip O. Berry Academy of Technology, has a 3D lab (CNC routers, laser cutter, 3D printer, etc.) as well as a home construction program and an automotive program. Teachers and administrators from the 3D lab and the home construction program received a 1-day refresher course on the ShopBot in May.

Watching the ShopBot in action.

Olympic High School in Charlotte also has a full sized ShopBot for use in their School of Technology Entrepreneurship & Advanced Manufacturing and with Project Lead The Way. Matt Wykoff, the PLTW teacher at Olympic, says his CIM (Computer-Integrated Manufacturing) students have embraced the ShopBot. Matt is putting the ShopBot to good use for himself as well, he is making a new home entertainment system.

A few of the student projects from Olympic High School in Charlotte, NC.

 

OHIO

The installation of the digital fabrication lab at Brady Middle School in Pikesville, OH (near Cleveland) was completed at the end of May. After the ShopBot PRSalpha 4 x 8 for big projects, and a ShopBot Desktop for circuit boards and smaller projects were installed, Christie Kohn and Jake Miller, interim managers of the lab, invited 6th, 7th, and 8th grade teachers for a tour and “make and take.” The digital fabrication lab is not just for STEM education: Language arts teachers began to think of how they can use the ShopBot for “printing” their students’ favorite quotes, and social studies teachers thought of making as a way of bringing cultural diversity and customs into the classroom. TIES will return to Brady for professional development when the new school year starts. News update: Brady has now ordered a Handibot to join their suite of digital fabrication tools.

Chris Carter of TIES demos the ShopBot Desktop to one group of teachers, while another group works with the 3D printer and laser cutter in the digital fabrication lab.

 

Principal of Brady Middle School watching ShopBot cut out his name plate. Note the material is pre-painted and pre-cut to size for each name plate.

 

Christie tightening bolts on X motor after reseating the pinion gear in the rack. Part of the training during installation includes how to tune up the ShopBot.

 

LOUISIANA

The Chevron Fab Lab NOLA at Delgado Community College in New Orleans is reaching out to the community to share its resources. Fab Lab manager Sam Provenza and Sallye Coyle hosted a diverse group of teachers and community leaders from Delgado Community College, local public and private schools, and extracurricular programs that are a part of Bricolage Academy and the Youth Empowerment Project. The two day FFI include time on the ShopBot, laser cutter, and vinyl cutter, as well as how to integrate digital fabrication into curricula, from primary school to high school programs such as PLTW.

Sam introduces the FabLab concept to the attendees.

 

Same design file, three different digital fabrication tools: ShopBot CNC router, laser cutter, and vinyl cutter.

The Embracing of Digital Fabrication Technology in Polk County, Florida

Four Saxes: An original drawing (right) scanned and re-conceived with 3 different digital fabrication tools: Engraved in wood (ShopBot CNC router), 3D printed with ABS plastic (Ultimaker 3D printer), and laser cut out of thin acrylic (Epilog laser).

Early in May, I visited Polk County, Florida as a part of a TIES team. Polk County now has digital fabrication labs (FabLabs) in 6 magnet middle schools, and more labs are spreading down into the elementary school level.  The county’s investment in training their teachers is impressive. Teachers and resource staff from four middle schools spent four days at Lake Alfred PolyTech Academy honing their CAD design and machine skills. Their fields included theater, social studies, language arts, business, art and photography, home building/construction, and math. Some of the resource and support staff who had been part of the install teams and/or participated in the training for middle schools then served as instructors for the 27 elementary school teachers who attended three days of training later in the week.

Sallye with Rick Runion, art teacher and FabLab manager at Rochelle School of the Arts in Lakeland, FL. Rick designed his step stool in VCarve Pro, then scaled it down to create a prototype in cardboard on the Epilog laser cutter before cutting the real one out of plywood on the ShopBot PRSalpha.

Continuing their mission of making digital fabrication available to all in Polk County, Carla McMullen, Senior Coordinator of Operations & Evaluation (MSAP) in the Office of Acceleration & Innovation for Polk County Schools, invited teachers and administrators of schools that do not currently have digital fabrication labs to visit the new mini lab at the district headquarters. Some equipment, like the Handibot® Smart Power Tool, can be checked out of the office for use in the schools. Teachers can also make an appointment to bring small groups of students to use the Full Spectrum laser, Roland vinyl cutter, and Ultimaker 3D printer in the office.

Mixing LEDS’s and CNC machining. A teacher from Jewett Academy used the Handibot to carve the school logo in acrylic, then lit up the sign with a strip of LED’s.

Handibot’s Brian Owen joined a couple of the trainings to observe how teachers are using Handibots in school settings.  Polk County chose Handibot as the CNC for their elementary schools because it is capable of doing great (and intricate) things while being easy to use and having a friendly demeanor. This makes them a good case study in education for Brian and the other people at Handibot.

Brian (left) deep in conversation with the teachers who will be using the Handibot in early school and middle school education. Note the files that the Handibot has carved in the plywood sheets laid out on the floor of the lab.

It is a lot to introduce a whole new set of equipment, software  and techniques into the school day and expect teachers to immediately embrace it. The Administration at Polk County is committed to making it work. By giving the teachers sufficient time and training, they can become confident enough to share the possibilities with their students. The Administration also supports the development of new curricula that go beyond just using the tools.  Finally, schools are encouraged to connect with their communities and develop business relationships that will both sustain the labs, and introduce the students to real world problems and solutions.

Ms. Vega showing of her students some of the possibilities.

Mijana and Candy sanding Linkerlogs. Mijana is developing a curricula where the middle school students will fabricate the Linkerlogs on the ShopBot, and elementary students will use them in their math and other classes.

Don Gilmore Explores New Avenues on His ShopBot

don gilmore's iron dinosaur car

Don Gilmore certainly has no problem keeping busy. He’s an engineer by day, but builds race cars, creates glass art sculptures, and even enjoys amateur paleontology in his spare time. While these disciplines couldn’t appear more different, Don has found a way to merge them all together. His team, Iron Dinosaur Racing, got its name from the appearance of their car’s welded frame in its early stages, resembling the ribcage of a fossilized skeleton. The team has also been able to adapt to changes that have come their way, using the ShopBot to cut just about every type of material imaginable on the way to creating a car that holds all of the East Coast speed records for its class. The team is next headed to the Bonneville Salt Flats in August 2017 to make an attempt on the existing record there of 349.873 MPH.

The Iron Dinosaur push starting at the Ohio Mile.

“More Than Just for Wood”

According to the Iron Dinosaur team, the ShopBot was such a vital tool in the creation of the racer, that it was only after Gilmore started listing the work items that he utilized the tool for that he realized it had become almost a member of the team itself. In addition to a number of prototype runs, the team made extensive use of their ability to cut and machine aluminum; they milled the engine’s 3.5′ x 4′ ft. firewall and aluminum dash (including instrument openings), and surfaced both to give it a nice appearance. They also cut torsion bar stabilizer links from ¾” x 2” 6061 aluminum, an important part of the car’s suspension system.

iron dinosaur engine turned firewall

The Iron Dinosaur’s engine turned firewall surface cut on the team’s ShopBot.

The Iron Dinosaur on Display

Stickers on the cockpit highlight all the partners that helped build the car.

The team displayed their car at the Piston Power Show in Cleveland on March 17, 18 & 19. It was wildly popular, pulling in first place in its class. One of the more interesting factors of Don’s experience was that many people he talked to at the event were either ShopBot owners or had used Aspire at some point. A number of the ShopBot owners had used them in other capacities, and were very interested in how the team used a CNC tool in the manufacture of a car.

The Iron Dinosaur in Western NC

If you’re in the Western NC/Eastern TN area, or are looking to make the trip to see the land speed racer, you can catch the car on display and meet the team at the Wheels Through Time Museum in Maggie Valley, NC from July 7-9, 9am-5pm.

Don’s Glass Art

don gilmore's glass art

 In addition to working on the Iron Dinosaur car, Don has developed an interest in creating art out of glass. In trying to build the perfect windshield for his racer, Don has experience working with all shapes and types of glass materials, gaining an understanding of its properties along the way. He’s currently working on a piece based on a ¼” float wave cut mounted on a sheet of dichroic. He plans on fusing the float together and slightly softening the edges to complement the refraction of light, allowing for an even more striking prismatic result.

 

PRSalpha Keeps Manufacturing Lean for SaunaSpace

SaunaSpace Pocket Sauna cut on ShopBot PRSalpha

The Pocket Sauna® is just one of many products that SaunaSpace is bringing into the average American home.

Brian Richards is the founder and CEO of SaunaSpace, a company that manufactures health-oriented sauna solutions designed to fit into any lifestyle and budget. Their saunas provide what Brian refers to as “an ancestral healing method for the modern home without costly installation or planning,” which allows any consumer to enjoy reduced stress hormones, decreased blood pressure, and improved cardiovascular health. Having a ShopBot PRSalpha helped Brian bring the healing nature of saunas into the typical home with a range of convenient and manageable sauna installations, making real products out of lofty ideas.

saunaspace

A CNC tool helps SaunaSpace add repeatable precision to production.

When Richards was first getting started, he applied for a substantial business loan so he could get his idea off the ground. But when he came across a ShopBot in another local Columbia, MO business, he was able to increase the loan amount under the pretense that an automated CNC tool would minimize future debt potential. With the purchase of a 96-60 PRSalpha, SaunaSpace immediately gained the ability to design & prototype everything in-house, boosting production capability and flexibility. Since then, the production has become incredibly lean and efficient, with the ShopBot running essentially all day long: it spends 4-5 hours a day cutting parts for production, a few hours for prototyping, and any remaining time is dedicated to experimentation or cutting parts needed for business. In Brian’s words, the PRSalpha is “a production infrastructure in itself” for SaunaSpace, a concept that fits in with ShopBot’s stance on the future of manufacturing.

Prototyping Makes Perfect on the PRSalpha

All of SaunaSpace’s prototypes are made in pine, which is a more affordable and flexible alternative compared to the final products’ basswood, which is optimal for saunas due to its low toxicity and pliability. Working with pine makes experimentation possible without wasting materials, and is much softer and more available than basswood. By cutting prototypes in a softer wood, it guarantees that the method will work in a harder material. This prototyping workflow is one of just many developed by the SaunaSpace crew on their ShopBot, which shows just how important experimentation can be to delivering a reliable and affordable product.

saunaspace standup

Brian Richards holds a stand-up with his team, which has helped keep business lean and profitable.

Another feature of the PRSalpha that has helped in prototyping is its precision, especially among repeated tasks. The wiring tray and light panels of all SaunaSpace products require precise cuts with different bits, and constantly making adjustments with the tool would take time and resources away form other important aspects of production. The team utilizes the tool changer and two-sided machining techniques to minimize time and effort that goes into an intricate and integral part of every sauna.

 

The Future of SaunaSpace Production

Having a ShopBot doesn’t replace anybody. At SaunaSpace, everyone is a master at their craft.

At SaunaSpace, change and adjustment is always encouraged; in fact, it’s at the very core of what has allowed the company to grow. The team is always looking to build upon its experiences to date, and doesn’t shy away from any innovation that can help improve production.

“[Customers] bring things up and we’re always keeping our ears to the ground,” notes Brian. “Having the PRSalpha in our space makes trying new things possible.”

But listening to customer feedback isn’t the only method for driving change. In fact, most of the new product ideas come from simply trying out new things. The company has been looking at the plotter pen as a way to sketch out ideas before prototyping, and are even getting ready to purchase their second PRSalpha, which will not only double production output, but allow the team to experiment while simultaneously still making a great product.

NYSTEEA and Chocolate Mold-Making for STEAM

chocolate mold in HDPE

The tastiness of making mistakes.

 

In the 52 years that the New York State Technology and Engineering Educators Association (NYSTEEA) has been meeting, there have been a lot of changes in the design software and equipment available to teachers and students. Schools have been adding digital fabrication equipment, including CNC, into their classroom and pursuing a hands-on teaching model.

ShopBot Tools attended this year’s 2-day BSTEM event in Malta, NY, which included sessions on everything from elementary robotics to model railroading as a STEAM activity. During the mornings and breaks throughout the day, educators had a chance to see a Handibot in action, as well as understand the workflow that aligns closely with what they are teaching day-to-day in the classroom.

ShopBot Tools sponsored the Awards Dinner, held at the Automobile Museum in Saratoga Springs. In a brainstorming session a few weeks before the event, Sallye Coyle and I decided to create a gift for each attendee. Sallye has been playing with using ShopBots to create molds and models for casting materials such as aluminum and glass. Why not demonstrate ShopBot’s capability to machine in 3D by creating small molds to cast chocolate for an end-of-meal treat? We had no idea what we were getting into.

 

chocolate and cooking sprays

The ingredients for our experiment required different types of chocolate and mold release sprays.

 

The first step was to prototype the mold (negative space) that we would pour the melted chocolate into. Since we intended for people to eat the chocolate, we started with food-grade HDPE, the solid material that plastic cutting boards are made out of. It machined beautifully, and the melted chocolate flowed into the mold without any problems. However, after it solidified again, both kinds of chocolate we tried were too brittle to release easily from the rigid mold, even with a mold release agent. Hardship prevailed: we had to eat all the chocolate that broke as it was removed from the prototype molds.

The next step was to create a model (positive space) that resembled the actual shape the chocolate would take. Then, a two-part food-grade silicon material was poured around the model so it would become the mold. The silicon remains flexible after it sets, so a brittle material can be popped out. In the first tries, we tested two types of mold release: PAM and coconut oil. The finished product came right out of the mold with both, but the top of the chocolate was discolored with unappealing white streaks. When no mold release was applied, the chocolate still came out of the mold easily and retained its rich, dark color.

 

silicon chocolate mold

Silicon molds were successful in producing chocolate shapes, but the mold release left discoloration.

 

We now had a functional mold, but our prototyping showed us another problem with going into small scale production: the two-part silicon mold material was just too expensive and the process itself too time-consuming for us to make 150 molds. While a flexible material such as gelatin came out of the rigid molds, it just was not as appealing as chocolate. So, we came up with other options for the giveaway that included ShopBot-cut rack and pinion gears, which also explained how the tools are made.

 

 

The project didn’t turn out the way we had initially hoped. However, the prototyping process was a great example of many things that engineering teachers are trying to convey to their students: design thinking, learning from failure, iteration, record keeping, and decision making. Cost effectiveness is another important consideration that needs to be put into the equation.

Sallye used Aspire, a 3D design and machining software, to design her molds and models. Aspire is the “big sister” to VCarve Pro, the 2D CAD and 2D/3D CAM software that comes bundled with every ShopBot and Handibot.  She machined the prototypes and did small scale production of the molds, models, and gifts on a ShopBot Desktop.

 

chocolate molds for nysteea 2017

 

The day after the dinner, several teachers came up to thank ShopBot and reveal how the evening’s talk had inspired them. One teacher said that, in 27 years of coming to the NYSTEEA conference, no one had ever talked about food. He had a grant to create a garden to engage kids who would not otherwise be drawn into science and engineering. Others learned that 3D models can be realized in more ways than with 3D printers, and that it is important to have a suite of digital fabrication tools available, including a ShopBot or Handibot CNC. Having the right tools in the classroom/lab allows students to follow through on their ideas from CAD design to mock-up to tangible item, and to learn from their mistakes and revise. In fact, it is the mistakes that can lead to some of the greatest successes.

 

Wayne Locke’s User Group

 

One of the fortunate coincidences for my trip to Austin was that Wayne Locke’s CNC User Group was the weekend before SxSWEdu and SxSWCreate. Wayne’s gatherings are, by far, the longest running gatherings of ShopBotters and others that are interested in all things CNC-related. This year, as always, it was held in his shop behind his house outside of Austin.

 

Our host

 

Wayne is a woodworker and furniture builder that specializes in church furnishings. Like many woodworkers he works by himself, which means he falls into one of two categories…very organized or total chaos. Fortunately Wayne falls into the first one!

 

You can never have too many clamps!

 

Keeping track of scraps

 

Since he does such a wide variety of work, Wayne’s PRT ShopBot has been modified with a couple of custom additions. He’s added an indexer to the side of his ShopBot, modifying the table so that he can do an 8′ turning. He’s also added a very versatile vacuum hold-down system  with a highly customizable plenum for holding parts of all sizes. His table is a funny color, but we try not to hold that against him.

 

Indexer in a lowered section of the table

 

Discussing hold down options

 

Wayne’s table allows for both vacuum and mechanical clamping using t-slots

 

One of the first presenters was long-time ShopBotter Santiago Laverde. Santiago does custom cutting and specializes in jigging and setting up for production runs. He started with an overview of some of the work he had done, followed with one in jigging for production that used a bottle opener as the example product

Santiago

 

Some of Santiago’s work

 

Holding jig for machining bottle openers

 

A prototype cut for a bottle opener

 

One of the main topics of discussion this year was chairs, which began with a presentation by Gary Weeks that described how they currently make their rockers. Their handmade rockers are beautiful, but very labor intensive to make, so they came to the User Group to explore the idea of adding a ShopBot to their shop. Lots of creative and clever thoughts from the crowd, including a discussion of what “handmade” really means and where tools of all kinds fit in. It’ll be interesting to see what they decide!

 

A Weeks rocker

 

The Weeks crew talking about their beautiful chairs

 

Wayne examining a rocking chair arm

 

Longtime ShopBotter and frequent forum participant Steve Glassell followed with a great presentation on how he uses his ShopBot to build his line of rustic chairs. Steve has developed a very clever joinery system that makes assembling his chairs quick and strong, held only with glue and a single screw. Steve has created this design–and the files–so that everything is cut from one side only, without any material flips. He and Wayne followed up with a two-way discussion of the ways they shape their chair seats.

 

The same chair built from two types of wood

 

Clever joinery. This pocket is cut in the back leg…

 

…and the seat support fits snuggly into it, leaving room for a tenon on the seat cross piece

 

The crosspiece and tenon fit in the recess…

 

…and are held with a screw and wood glue. The screw can be removed after the glue sets

 

Texas Boatbuilder David Lemke talked about how he used his ShopBot to build both boats and “plugs” that production boatbuilders use to make molds to manufacture boats. As a plus, he brought signs for a of couple of attendees to take home. 

David Lemke

 

A stack of frame pieces for a boat hull

 

Truer words were never spoken!

Brett Dickinson, long-time ShopBotter and Texas educator, talked about some of his projects and the schools he’s worked with including the Dripping Springs, Texas Fab Lab and their F1 in Schools team.

Brett Dickinson

 

The Desktop MAX rolling cart that Brett designed and built

 

Members of the F1 in Schools team from Dripping Springs, Texas

 

Machinist Matt Schreiner, also of Dripping Springs, spoke about his spreadsheet system for fine-tuning feeds and speeds for machining materials like aluminum. He also showed some of the techniques for aluminum machining techniques that he uses on his XCarve using Fusion 360.

 

Matt showing a machining simulation from Fusion 360

 

Will Leonard of the Alley Theater in Houston wrapped up the event with a presentation on how he uses their ShopBot to make sets for the productions that the theater does. Will uses their ShopBot to cut out the pieces and also to engrave lines for color changes, to make it easier for the painters to get a clean edge. Although much of the design and fabrication is digital, they still need paper plans to keep track of it all!

 

Paper plans help keep track of everything

 

A section of a floor from a recent play

 

The most important part of any ShopBot event is the show-and-tell items and conversations that are constantly going in. And of course lots of food! 

 

Show and Tell items

 

More Show and Tell

 

The bases of large candles that Wayne machined on his indexer

 

More show and tell

 

Santiago describing a project he is working on

 

LUNCH!

 

My next stop is a visit with Ken Picou, an amazingly creative woodworker and ShopBotter that has been to Wayne’s gatherings for years. Stay tuned!

 

 

 

 

Digital Fabrication Education at USFLN in Edwardsville, IL

usfln hat

From March 13-15, 2017, ShopBot Tools attended the 2017 USFLN Symposium at Lewis and Clark Community College’s St. Louis Confluence Fab Lab in Edwardsville, IL. This year’s theme, “Stairway to Making”, featured a number of workshops and sessions highlighting the various steps that Fab Labs and Makerspaces can take to start, grow, and succeed in bringing digital fabrication education to the communities they serve.

For the symposium, ShopBot’s Sallye Coyle brought a Handibot, which she used to showcase the workflow of a project from design to finished product to educators, makers, and those looking to start up digital fabrication spaces. She was also joined by ShopBot’s Digital Marketing Specialist Tim Babiasz, who was fresh off representing ShopBot at USITT just down the river in St. Louis.

st. louis confluence fablab

The event featured multiple hands-on demonstrations in Lewis & Clark CC’s state-of-the-art Fab Lab.

Tools of the Trade

From large-format printers to laser cutters, just about every type of digital fabrication tool imaginable was on display at this year’s symposium. Seeing a range of different tools in one location really helped attendees get a feel for the versatility that’s so important in a successful Fab Lab or Makerspace.

At the ShopBot booth, Sallye and Tim showcased a typical project workflow on the Handibot from initial conception to finished product, and showed off a few samples of finished works in a range of materials, from foam to aluminum.

handibot at usfln

Sallye Coyle shows a USFLN attendee the range of projects that can be cut on the Handibot.

Maker Education

ukulele making at usfln

An hour-long session held in the USFLN lab showcased the workflow involved in ukulele making.

Throughout the symposium, the maker’s mindset was applied to every aspect of digital fabrication, including how to create and curate a space. Included in the schedule were sessions dedicated to education, staffing, training, program implementation, and operations, which provided a launchpad for those looking for ways to spread the culture of Fab Labs and Makerspaces in their area.

Electric guitars at St. Louis Confluence FabLab in Edwardsville, IL.

Guitars on display at the Confluence Fab Lab were made by students using a combination of CNC, electronics, and handcrafting.

Sallye led two different ShopBot sessions. The first was dedicated to workflow, and followed the path of a project from conception through design and toolpathing, all the way to cutting. The students were lively and engaged, with many even staying after just to watch the Handibot cut the finished product, a wooden skull. To explain the different levels of detail and cutting speeds, the left half was done with a 1/4″ ball nose bit. The right side was cut with a 1/8″ ball nose. A portion of the roughing pass was left on both sides for reference.

wooden skull

Wooden skull cut on the Handibot, with roughing pass on the outer edges.

Sallye’s second ShopBot session provided a deeper dive into CAD/CAM software education, project innovation, and workflow, allowing for more questions and discussion from attendees.

A Cross-Section of Digital Fabrication

USFLN education presentation

Eugene & Tiffany of NWA Fab Lab talk about Fayetteville, AR’s growing maker culture

All in all, the 2017 USFLN symposium provided a great opportunity to learn, grow, and network with people from all over the country. The final day included presentations from the attendees themselves, which showed how digital fabrication and maker culture is taking hold in every area of the United States and in various forms, from membership-based Fab Labs to free library and children’s programs. It will be exciting to see how things have developed at next year’s event!

 

Our History, Our Future

CO2 car made in high school carpentry class

We made a jig to CNC the tops and sides of our CO2 cars.

Hello, my name is Devin Wilson and I am excited to be a part of the ShopBot world! I am a first year Carpentry and Technology teacher at Rosman High/Middle School in Rosman, NC. There have been some ups and downs, but the ShopBot aspect has definitely been one of the ups. My goal coming into our Carpentry program wasn’t to reinvent things, but to build on the foundation of craftmanship, stewardship, and ownership that had been laid in previous years. Change doesn’t mean you have to get rid of the past. Some of our equipment has been running and maintained for more than 20 years. This year we sold a planer that had been on a World War II ship—and it was still running! We were sad to see it go, but excited to press on with the same standard of quality and workmanship in mind.

We were introduced to the ShopBot MAX at a construction career day. I had been researching CNC routers and it seemed like the perfect fit for us. I had no idea, at the time, what it was capable of. We have been able to take older projects and improve them with a CNC twist, and we have been able to do a lot of new things that we wouldn’t have dreamed of before. Here are a few things we’ve learned in the process and a few that we are still trying to learn.

Da Vinci Bridge made on a ShopBot in Rosman Middle School's carpentry class

The Da Vinci Bridge from TJ on the ShopBot resource page.

Rosman students looking at ShopBot

When the machine is off, the kids can come in for a closer look.

Computer desk built in carpentry class

We built a computer desk. Now our kids can break into groups to design. We set up a shared drive so we don’t have to carry the thumb drives back and forth.

Rosman HS sign cut on a ShopBot

Of course, signs are always a hit! I am trying to let each class write their name first. It draws them in.

batmobile cut on a shopbot

We live in a low income area, so the ShopBot gives kids opportunities to create things that they dream up.

sign designed by Rosman 8th grader and cut on a shopbot

This sign was designed and toolpathed by an 8th grade female student. She picked up the design software in about 3 minutes and has become my best designer.

 

Soon, I will share what our high school class is up to: selling signs to a local development, carving aluminum, and more!

CNC in Theatre: ShopBot at USITT

usitt 2017 badge

This past week, ShopBot Tools attended the 2017 USITT Symposium in St. Louis. The annual gathering, held at America’s Center Convention Complex, assembled the latest tools, technology, and products that are shaping the way that theatre programs are evolving in the 21st century. ShopBot’s booth highlighted the growing role of CNC in theatre production, and showcased some of the latest design and workflow innovations aimed at making productions easier and more realistic.

 

USITT 2017 theatre drop

Over the course of the exhibition, master painters created this custom drop with a distinctive St. Louis flare.

 

Behind the Scenes at the ShopBot Booth

shopbot booth usitt

The ShopBot booth showcased the ways that CNC tools can be applied to theater and entertainment production.

 

Throughout the conference, the ShopBot booth served as a resource for technical directors, performers, educators, and theatre shops looking for information on CNC in theatre production. On display was a slideshow highlighting sets from Alley Theatre and UNC School of the Arts, a foam hat block project from a UNC Chapel Hill graduate student, and videos of tools in action.

The table exhibited all of the different materials that can be cut using a ShopBot router, ranging from aluminum and wood to MDF and foam. One of the more popular objects was a 3D-carved recreation of the Wailing Wall in Jerusalem, cut into pink insulation foam.

This full-color photo of the Wailing Wall in Jerusalem helped explain the process of converting a 2D image into a 3D carving.

 

wailing wall cnc pink foam

The image was then converted to gray scale, and the depth was controlled by the darkness of a given area. The crowd at the bottom of the image was then divided into a separate vector and the process reversed to place it on top of the image.

Elsewhere in the booth, exhibition attendees enjoyed getting up close and touching the textures of Bill Young’s MDF column. Students, performers, and tech directors alike commented on the different moods that could be conveyed with the same surface and cutting tool.

texture column at usitt

This column helped explain how CNC is an affordable and easy way to add texture to any production.

 

Elsewhere at USITT

All around the convention hall, the sheer range of tools and products was a testament to just how much work goes into theatre production. Everything from sound and lighting equipment through costumes and set design littered the floor, and there was no shortage of fun and surprise throughout the convention hall. We had a blast exploring all the things that go into a successful theatre and sharing the role of CNC in theatre production. We can’t wait for Fort Lauderdale and USITT 2018!