Andrew Coholic is the owner of Joe Coholic Custom Furniture Ltd., a custom cabinetry and furniture business. The company operates out of a 6,000 square foot shop in Timmins, Canada. Andrew runs the business that was started by his father Joe back in the early 1970’s. Andrew said, “My family has worked with wood for generations. My grandfather was a carpenter, and my Dad a home builder and cabinetmaker.” He switched his focus to the cabinet work in the 1970’s when Andrew was a child.
Andrew came to his current career a bit circuitously. “After high school, I went to university for math and science, but began to realize that my true interests are in design and working with my hands.”
Andrew said that he learned CNC technology during a 3-year woodworking program in Ontario, which afforded him the opportunity to visit many different woodworking facilities. “My classmates and I all dreamed of buying a CNC tool like a ShopBot. But none of us could afford one then.” When Andrew started leading the business, he had a 4000-sq-ft facility with a couple of employees, and no space for a CNC tool. “I sold that shop in 2010, moved to a larger community, and got a larger shop.” In 2012, Andrew purchased a 48″ ShopBot Buddy with industrial spindle and 6-foot Powerstick. “In hindsight, a full-size tool might have been an even better choice, for working with larger cabinetry pieces, but I’ve been thrilled with the Buddy.”
Here’s some of Andrew’s custom furniture work
Dining table in the shop…
…and in the home environment
Surprising benefits of CNC
With his past knowledge of CNC and its capabilities, Andrew knew that the technology would bring greater efficiencies to his business, but the extent of this benefit continues to grow.
“The ShopBot has met and exceeded expectations. We’re able to perform repetitive tasks such as making the parts of tables, chairs, benches, and cabinetry much faster than before — so of course it saves us money. And there are some areas where CNC has afforded other benefits. For instance, I knew that we could do decorative carvings using the tool, but hadn’t really intended to do much of this work. Well, I’ve found that I’m doing more and more of it, because clients are really liking the work.”
“Also, the ShopBot allows me to create prototypes for my customers very quickly, and this is a huge benefit,” said Andrew. He gave as an example, a recent project involving designing an original idea for coffee tables and end tables. “If I were to draw these and cut full-scale mock-ups in plywood by hand for the client, would have been very time consuming. With the ShopBot, I can make the prototype and execute small tweaks to the design while the customer is sitting with me!”
Another benefit that Andrew has found, is that he can use the ShopBot Buddy to cut out templates for use on his traditional shop tools.
Here is some more of Andrew’s work:
The love of the work.
Asked what he enjoys most about his work, Andrew said, “I like having a business where I’m responsible for the product from end to end. With a custom shop, you get to experience all facets of the business, from design and engineering, to building, finishing and installing the work. It can be very satisfying to touch all aspects of a project, and at the end of the day, have made a solid object that’s both beautiful and functional.”
Andrew said that when it comes to incorporating CNC into woodworking, “you sort of have to take a leap of faith. You know intellectually that it can bring many benefits, but if you’ve been brought up with the traditional technologies as I was in this family business, you are partially going on faith. It’s been nothing but a great choice for us!”
June 6, 2015 – Windermere, Florida, just outside of Orlando, was host to the 2015 Ed Camp Magic with nearby Disney World as the backdrop for the weekend’s events held at Windermere Preparatory School.
One of ShopBot’s core focus areas remains in the realm of education, and we were happy to sponsor such a great event! It was a hot summer day in Florida, however a hearty turnout for this gathering made for an eventful day sharing the infinite possibilities of ShopBot Desktop tool and its far reaching capabilities in the world of digital fabrication.
Many folks stopped by to see the ShopBot Desktop in action. One of Florida State’s Theater Department grad students, Brandon Rada, was at the controls showcasing the tool’s creative and efficient production power. Teachers, Superintendents, and Teaching Coaches all visited the makeshift “makerspace” on-site, and everyone came away learning a bit more about the endless opportunities to grow alongside CNC tools.
A massive 150 foot long shop, partially filled with excavating equipment, set the stage for big things to happen at the ShopBot Camp in Mays Landing, NJ this past month. John Pucci Sr. and his son, John “JJ” Pucci Jr., hosted the camp, which drew roughly 30 participants. Pucci and Pucci have a 5’ x 12’ PRSalpha ShopBot which they use to cut signs and furniture under the name CNC Design Fabrication (formerly Tiki Art Studios). They also have a 12” indexer at their shop, which they were excited to get turning to make full-3D models. Randy Johnson and Matt Schmitz from ShopBot were there to answer questions and give tips. There was also a representative from Harbor Sales at the camp, who set up a table overflowing with samples of sign foams, laminates, and specialty materials for machining.
The morning started with Randy sharing his considerable knowledge of feeds and speeds, maintenance, tips, and tricks. Matt gave a presentation on the ShopBot Indexer, a ShopBot accessory that works like a controlled lathe and allows machining of full-3D parts.
With the smell of barbeque distracting all but the most steadfast of attendants, a break for lunch was called. The Pucci’s had ordered a full-sized wood fire smoker to cook up lunch for the camp crowd. As John Sr. put it: “We don’t do sandwiches here.”
The afternoon brought “show and tell” and more shared tips and tricks. The indexer was fired up to cut a tiki pole out of a 3’ long by 9” diameter maple round, with camp attendees taking breaks from the talks to check on its progress.
In addition to the information shared by Randy and Matt, Brady Watson, a former Shopbot employee and 3D scanning expert, shared some of his expertise in 3D scanning and presented some impressive examples of objects he had been 3D scanned and then cut on a ShopBot.
All in all a ton of fun for everyone, and a big thank you to the gracious hosts, John and JJ!
The 10th Annual Bay Area Maker Faire was extended to a 3-day event this year, May 15-17. With over 130,000 visitors, the Bay Area event is the largest of its kind. ShopBot’s 40’ circular tent was chock-full of CNC tools continuously cutting, carving, and sculpting, making everything from flat-pack stools to picture frames to stormtrooper ornaments.
We were excited to share the next step in the evolution of the Handibot open-source motion control system called FabMo that we’ve been developing (check out goFabMo.org for technical info). FabMo allows users to run digital fabrication tools wirelessly from any device. ShopBot’s Ryan Sturmer was interviewed by MakeZine and was invited to speak on a Beagle Bone Black panel at one of the MAKE stages during the faire.
ShopBot offered two tool sneak previews at Maker Faire. One of those being the Handibot 2.0, which brings together many features that have been requested on the Handibot.com community website and forum by early adopters of the tool. ShopBot’s Brian Owen talks about the enhancements underway in this short video. Visitors also got to see the Handibot’s new accessory base and rotary axis cutter making candle sticks out of acrylic cylinders. Read Brian’s summary post on the Handibot Blog.
The other sneak preview was of the Desktop MAX, a much anticipated 24″x36″ bed tool that is modeled after our very popular Desktop 24″x18” machine. Stay tuned for release dates and more information on this innovative new machine.
A special shout-out and thank you to Janet Lawson and Dan Swearington of Autistry Studios. This amazing duo cut out gear pieces, made a mini version of a playhouse, and shared their experiences with thousands of visitors and educators at the faire. We saw firsthand the successful work that Austistry Studios is doing with autistic teens and their families, and how they use the ShopBot as a featured tool in their programs. These kids start with simple projects that help them gain skills and confidence and move on to create and design complex projects that motivate and inspire them to keep learning. For more information on Autistry Studios, read this article on the ShopBot blog.
We were glad to have the Vectric team demo-ing the new VCarvePro ShopBot Edition v8.0. If you haven’t upgraded you may want to do so. It’s loaded with new features but still maintains its easy to understand interface and flexibility. If you’ve never tried VCarvePro, you can download a free trial version.
A thank you to John Coker of Hobby Rocketry who brought by some of his rocket components and to Russ Wood who helped out as he has for many years – and even designed a train themed table on the fly. ShopBot’s Bill Young introduced a new approach to custom fit plywood furniture, which proved quite popular to weary faire-goers and to potential ShopBotter’s alike. Quite a few people stopped by to show off what they’ve made at the California TechShops.
Diablo Valley College in Pleasant Hill, CA made a portion of their booth with carved foam panels, had examples of ceramic slip molds, and a beautiful adirondack inspired chair made on the ShopBot. We’ll be keeping an eye out for what other inspiring work comes out of this group!
One of our favorite things about Maker Faire is the endless creativity and exploration of new technologies and products – there’s never a shortage of interesting things people create and share at Maker Faire.
Playmakers Repertory Company in Chapel Hill, North Carolina, is a leading American regional theatre, and serves as the professional theatre in residence at the University of North Carolina at Chapel Hill, where undergraduates and graduate students learn every aspect of the theatrical craft, and local audiences are treated to productions by “one of America’s leading theatre companies” (American Theatre). The Independent Weekly has recognized Playmakers Rep as the “Best Live Theater Company in the Triangle.”
Set for “Private Lives.” The theatre’s Shopbot CNC tool was used to cut: Ceiling profile, All Platforms, Floor inlay, Ribs for fluted columns and the Wall panels.
Adam Maxfield and Mike Rolleri in the Playmakers Rep scene shop
I sat down recently to tape a video interview with Playmakers’ Michael Rolleri (Production Manager) and Adam Maxfield (Technical Director), both of whom play dual roles: teaching undergrads and grad students, and overseeing the theatres’ professional productions. In the video, they spoke of their roles at Playmakers, what they enjoy about teaching, and how and why they’ve integrated a ShopBot CNC tool into Playmakers’ scene shop and costume shop:
Adam noted that every production brings its unique creative challenges, and the ShopBot enables the production team to respond to the vision of the various set designers who work with directors to bring the shows to life. Here are just a sample of Playmakers sets that have been built with the help of the theatre’s ShopBot 96 X 60 tool:
Set for “It’s a Wonderful Life.” Shopbot was used to cut: step treads, all flooring inlays, ribs for curved walls, the “WPRC” wall clock, scroll work above center doors, ceiling units, “ON AIR” sign, Sky Scraper light boxes in back and round platforms.
Set for “Vanya Sonia Masha and Spike.” Shopbot was used to cut: All rock work, Scroll work molding and cabinet door panels.
Set for “In The Next Room.” Shopbot was used to cut: Door and the Stencil for the back wall
Every Playbill provides a proper bio for the Staff. Here’s a bit more info about my video interviewees:
Michael Rolleri (Production Manager, PlayMakers Repertory Company) has been Technical Director and Lighting Designer for industrial shows in the Southeast region. He has been a lead carpenter for such feature films as The Program and Bedroom Window, for the U.S. Olympic Festival and for Adirondack Scenic Studios. He has also been a rigger for Secoa and Stage Systems and has served on the Executive Board and as President of IATSE Local 417. Mr. Rolleri received an MFA from the University of North Carolina at Greensboro and is a specialist in machining and rigging.
Adam M. Maxfield (Technical Director, PlayMakers Repertory Company) is a Lecturer in the Technical Production Graduate Program. Prior to joining the faculty at UNC Adam worked as a Senior Project Manager for the Scenic Technologies division in the Las Vegas branch of Production Resource Group, a worldwide supplier of entertainment equipment and labor. He has managed the fabrication and installation of scenery for many nationally televised award shows such as Billboard Music Awards, Vh1’s Rock Honors, MTV’s Video Awards, NHL Awards, and the Video Game Awards (VGAs). He has also been in charge of scenery for many corporate events and automobile introductions for Ford, GM, Toyota, Chrysler, Mercedes Benz, Audi, Forest Managers, Prudential Insurance and IBM to name a few. Adam has a BA in Theatre and Communications from Idaho State University and an MFA in Technical Production from the University of North Carolina at Chapel Hill. He specializes in motion control, rigging and metal fabrication.
Recently ShopBot helped sponsor an event called the FirstBuild Mega Hackathon in Louisville, KY. I had the pleasure of representing ShopBot and getting to know a lot of innovative thinkers.
FirstBuild is a makerspace sponsored by GE appliances. They have a team of engineers, fabricators, and marketers on hand whose mission is to create rapid innovation in the home appliance industry. Their building is located and shared by Louisville University, and allows students to gain experience proposing and developing ideas.
Recently, FirstBuild organized an event called the Mega Hackathon. They brought together a wide variety of sponsors from electronics, appliance, and tool making fields to encourage innovation. Over 200 engineers, hackers, makers, and designers gathered to create and prototype ideas in one long 30 hour session. ShopBot was one of the sponsors and had several tools on hand including a PRSalpha 96-60 ATC, a Desktop, and a Handibot for demonstration and fabrication. I was on site to promote ShopBot, advise teams on design options, and help produce part requests.
Onsite Tune up for a PRSalpha 96-60 ATC
FirstBuild has a PRSalpha 96-60 ATC (Automatic Tool Changer) tool onsite as one of many advanced technology tools. I’d helped install the tool as part of ShopBot’s Production Support program, and it was good to be back on site and visit with users after it was operational. The ShopBot is reported to be one of the busiest tools in the shop, and users were happy to show me projects they’d cut and let me know about their experiences with the tool.
The primary technician using the ShopBot, named Jeremy, had a few operational questions and asked for help with setting up some additional tool holders they had purchased. I spent the afternoon before the Hackathon tuning up the tool, making sure all pinions and motors were optimally adjusted. The ShopBot Docs Maintenance section has some helpful resources if you need to tune up your own tool.
Once the tune up was completed, I began setting up the ShopBot demo table for the Hackathon. We shipped a Handibot with a 4th axis attachment in advance for demo and production.
I was happy to find that a local maker space called Maker Mobile had provided a Desktop for use as well. Maker Mobile is a volunteer organization with a 36 foot trailer that visits schools and events in the eastern Kentucky and southern Indiana regions.
I also met the Louisville University karting team who had used the ShopBot to create mold parts for all of their carbon fiber panels. They provided a mold and a panel for demonstration of the tool’s 3D capabilities.
The Handibot and Desktop stand ready for action. Louisville University karting team’s panel and mold are also on the table. The PRSalpha ATC can be seen beyond the door in the fabrication area.
Introduction and sponsor talks Friday 1pm – 4pm
Sponsors were given two minutes to introduce their products and prizes using a PowerPoint presentation. An Onsrud 8 piece bit kit was offered to the team with the most innovative use of the ShopBot or Handibot.
Team selection and idea generation Friday 4pm – 6pm
Teams self-selected using a system of stickers that identified interests and aptitudes including hackers, makers, programmers, designers, and engineers.
Teams could create their own ideas or choose from many ideas generated in the lead up to the event.
Appliances await destruction and hacking. The ShopBot PRSalpha ATC can be seen behind them.
Design and Fabrication Friday 4pm – Saturday 7pm
Several teams initially requested ShopBot help, with more coming as time went on. FirstBuild staff had several knowledgeable fabricators on hand to help with production.
Participants created DXF or STP files for the parts they needed. Once provided a design file, I demonstrated the CAM process and sent the part for cutting.
Team SexyBuild had a sweet spot next to the Hackster DeLorean. They made a humidity sensing umbrella stand cut using the ShopBot PRSalpha ATC.
LightTrack Team LightTrack designed a bathroom door sill that senses your presence at night and provides soft illumination without interrupting others sleep. I overheard the team discussing elaborate steps they’d need to produce their desired shape with the production team. When I suggested that the ShopBot could easily do it all, lightbulbs went on over everyone’s head.
Team Awesome This team made a table using inlayed QI inductive chargers and two-sided machining operations using the ShopBot.
ShowerTeam This programmable shower faucet has automatic temperature settings for a variety of users. The slots and an inlay pocket were cut using the ShopBot.
Judging and Prizes Saturday 7pm – 10 pm
After hours of work, little sleep, and plenty of caffeine, the teams presented their projects to sponsors and judges. Many interesting projects were produced with prizes up to $5000 being awarded.
The winning team for the ShopBot award called themselves “The Fantastic 7.” This diverse group of professionals and students created a system for growing produce within the space of a conventional kitchen cabinet (36x30x12”) they called “Grown.”
The system used a variety of ShopBot cut parts including wood and acrylic.
FabLab Tacoma and Created to Create’s collaborative group
Founded in late 2012 by Stephen Tibbitts, FabLab Tacoma is a community-based prototyping and technology workshop that’s open to the public with a membership business model. I spoke with Stephen recently to learn more. “We opened up the FabLab to provide easy access to cutting-edge design and prototyping equipment, and to bring educational opportunities and a supportive community for students, inventors, artists, and DIY enthusiasts,” said Stephen. The location was strategically chosen to be right by the University of Washington’s Tacoma campus so that the educational community can take advantage of the FabLab’s digital fabrication equipment, classes, and prototyping services.
FabLab Tacoma is a member of the customer/fabber/designer community hub, 100kGarages.com. You can read the full story about FabLab Tacoma at the 100kGarages.com blog.
This Art Nouveau building in Belgium is an inspiration for Nick Buchhholz
Nick Buchholz has been an amateur woodworker for many years, maintaining a shop in his garage while working as a computer programmer for the National Observatory in Tucson, Arizona. He retired from his programming career in 2012 after 25 years with the Observatory.
“At that time I decided to purchase a CNC tool to add to my shop, and see what new projects and processes I could develop,” said Nick. “I purchased a ShopBot Buddy tool with a cutting area of 24″ x 48″; I would have liked a larger tool, but the limits of my garage prevented that!”
Nick’s design interests are varied, and he says he enjoys pursuing all of them. “My original intention for the ShopBot tool was to create art nouveau and art deco dollhouse doors and windows, as well as model railroad buildings in various sizes.” So far, Nick reports, he’s designed and built a door, several signs for local businesses, parts for a marimba, a lot of storage shelving (“That’s so easy with the ShopBot”), and has been delving into making wooden flutes in the Native American style.
“My goal with purchasing a ShopBot was to be able to do more precision work more easily, and to figure out ways to generally work more efficiently with materials. It’s a process, and I’m enjoying it,” says Nick. “I’ve found that with the addition of the ShopBot tool, I haven’t used my table saw in a while.”
Some examples of Nick’s work…
Sign for model railroad club
Framework for model railroad buildings on the ShopBot
Model building frames
Finished Red Cross tents for model railroad scenery
Nick has designed unique signage for local businesses…
“The casters and handle make it easy for the sign to be folded up at the end of the day and stored.”
Close-up of yoga studio signage
“Lately I’ve been doing quite a bit of work making Native American-style flutes,” Nick said. “I’ve been using walnut, creating the flute in halves, and doing all of the hole bore work with the ShopBot. There are some very useful links to flute design plans that assist you with correctly adjusting the flute to make the acoustical physics work.” One such site is the Native American “Flutomat” online design tool.
Below are some shots of the flutes that Nick has been making. “I just love the calming sound of the Native American flute. I want to share it!” Nick noted that a friend of his hand carves the bird-shaped additions to the flute that you see at the mouthpiece end.”
Founded 20 years ago in the UK, Astor Bannerman is a company that designs and manufactures specialized furnishings — including baths, lavatories and office desks — for use by people with special needs and their caregivers. I spoke with Astor Bannerman’s Technical Director Peter Deverson about the unique challenges of their work, and how adding a full-size ShopBot Tool to their shop has enhanced their ability to serve the needs of disabled people.
Peter has a background as a mechanical engineer, and his business partner James Stuart-Smith holds an engineering degree as well as a degree in patent law. “From early on, we focused efforts on designing and building baths that raise and lower easily,” said Peter, “as we wanted to be able to meet the changing needs of a growing child, as well as to do everything possible to provide a comfortable and respectful setting.”
“We are very aware of how the equipment we manufacture affects the lives of the people that use it,” said Peter. “We have very high standards in both design and customer care, and due to its versatility, the ShopBot assists us in achieving our goals. It’s important to us that we achieve a beautiful looking product, a comfortable product, and one that exceeds standards for safety.” Peter explained that they put their new baths through a rigorous testing regimen of up to 100,000 cycles. “We punish the baths pretty harshly, opening and closing the moving parts, and raising and lowering the baths,” said Peter, “as we don’t want any patient to get hurt using our baths.”
One of many unique products is the company’s VANNA height-adjustable bath:
VANNA height-adjustable bath
As noted on their site, “This bath gives the client and the care giver much greater freedom and control through day to day life. With its simple elegant design and convenient side door, the VANNA allows for easy access in and out of the bath. The height of the bath can easily be adjusted at the touch of a button and also allows for the powered door to be opened and closed for quick and easy transfers. The VANNA bath gives both clients and the care givers the control to do more at the touch of a button.”
To get the best sense of its capabilities, particularly how it moves to accommodate helping the client get in and out of the bath with minimal difficulty, watch this short video:
Peter explained the various ways that the ShopBot Tool was critical to their ability to bring this design to fruition:
Section of VANNA assembly
“This image shows how the base, door, door top roll, side wings and returns are all made from the same sheet of polypropelyne plastic by using fretting and controlled routing using a ball nosed tool – all of the material highlighted in green is the same piece of plastic. You can see that along with fretting, we use a 90° tool to produce 90° ‘corners’ in the material which allow us to fold the material through 90°. The two 90° folds allow us to locate the material into the back face of the door which helps during manufacture and produce a strengthening beam along the length of the door. This image also shows the door closing mechanism incorporating a slot to prevent damage to the bath if someone were to sit on the door before it was fully lowered.”
Peter emphasized that the precise hinge cuts that they achieve with the ShopBot Tool enable them to create a water-tight bath, with ‘soft corners’ rather than sharp edges that could become uncomfortable for the bather, and help ensure maintenance of the bath’s hygiene.
Overview diagram of VANNA bath
Peter said, “This diagram gives an overall impression of the bath and also gives a better impression of the engraved company name and logo on the front door. The engraving of our company logo is performed on the inside of the door so that the outer face of the door remains smooth. It’s illuminated from behind by a couple of green LED lights (which the customer can switch on or off as they wish – there’s nothing worse than a green light keeping you awake!).”
Peter explained that the “open door” image below indicates how the door opens and one can see the ball nosed routed paths that make up the hinges.
“The illustration shown below of the sectioned end box / fretting shows how we use fretting to make up the radii of the bath from a solid 12mm thick sheet of polypropylene (PP). There are a couple of reasons for this, the first is to help protect the client (the person in the bath) if they have a tendency for spasms or flailing about, the other is hygiene. By having radius edges we avoid overhangs and hidden corners where pathogens can hide,” explained Peter.
Sectioned end box – fretting
End box of VANNA design
“This end box image (to the left) shows how by using the router, we create a path into which all of the components fit. This has two benefits: it allows a convenient reservoir for the adhesive we apply to all the joins and also helps with assembly as the components are held in position rather than requiring expensive jigs to hold it all in position. Once the adhesive has set we apply a plastic weld to all the joins; this is a belt and braces approach to bonding the joins and also produces a better aesthetic while also making it easier to clean and reducing hiding places for pathogens.”
Another example of Astor Bannerman’s use of the ShopBot tool in production of their designs is the Syncra:
“The Syncra Standard Modular bath is designed to offer comfortable and safe independent and assisted bathing,” said Peter. “The fully powered transfer seat and bath are operated at the touch of a button, allowing for quick, comfortable and easy bathing for all mobility levels.”
The seat can easily be detached from the bath by the means of the optional transfer frame enabling easy bedroom to bathroom transfers. The Syncra standard bath allows the care giver to perform any assisted bathing routine effectively and efficiently. Here’s video that helps paint the picture of its capabilities:
“We used the ShopBot router to produce the moulds for the seat back and base and also the mould for the long side panel,” explained Peter. “We did this by creating a 3D model in Solidworks, importing the model into Partworks 3D and producing a programme for our ShopBot. There was a little hand finishing of the moulds, but in essence the router was capable of producing what we needed in a sensible time frame.” (See picture below:)
“The challenge here was, we needed to react to the National Health Service’s requirements for a larger bath — there was a poor supply of these sizes, and frankly it was the ShopBot that allowed us to re-engineer one of our baths to a larger size in just two weeks -there’s no way we could have done that without the ShopBot,” said Peter.
“The picture above shows how the bath incorporates a few other items that we manufacture on the ShopBot,” said Peter. “I’ve removed the seat back so that you can see the hook assembly and the relevant components are highlighted in green. As part of the hook arrangement there are two guide blocks, one on either side, another at the base and a cover to the rear. None of them are very complex, but the ShopBot allows us to make small quantities in-house rather than investing in tooling and large batches of moulded components. That’s particularly useful to us as we effectively make bespoke products so it makes no sense to invest in large batches of components as they may remain on the shelf for years.”
Peter mentioned that when it came to deciding on a CNC tool, cost was part of the equation as Astor Bannerman is not a large company. “We did our web research, and we also came over to the US to visit ShopBot in North Carolina, get a tour and participate in their CNC training.” These activities impressed Peter and James such that they purchased their ShopBot PRSalpha back in 2005. “I also wanted to mention that tech support has been very helpful to us,” noted Peter. “We haven’t had to use their services much, but they’ve always been there for us when we needed them.”
CNC PALIMPSEST PRINTS (August 11, 2014) 3 Monoprints, Hand-burnished on Fabriano Archival Paper with Oil Based Ink 5 x 10 ft, 152 x 305 cm, Artist Studio, Bowling Green, OH ,USA
Quite often, artist Erwin Redl makes use of his ShopBot PRSAlpha 60″ x 120″ CNC tool to cut pieces of material such as plexiglas, soft metals, MDF, and wood, in the process of making his art. And occasionally, the CNC itself becomes part of the art.
Redl’s recent print series, CNC PALIMPSEST PRINTS, is his investigation of the artist’s digital production technology. The printed pieces are created using the recessed marks of the mill bit on the large horizontal bed of his ShopBot CNC tool.
If you’re familiar with a CNC such as the ShopBot, you know that each time that the tool makes a full cut through whatever material is being produced, the milling path of the drill bit results in layers of marks on the machine’s bed (also known as the spoil board). The frequent use of the tool results in layers of marks creating large, abstract patterns.
As Redl described it to me in a recent phone call, “Linear time becomes compressed into a singular two-dimensional image.” As he noted on his website, paramedia.net, this work is “a contemporary palimpsest documenting the digital production process over time.” (The term palimpsest in art refers to the use of previously used artwork to create a new piece of art — erasing the old while also acknowledging it in making of the new.)
After a certain period of time using the CNC tool, the density of the marks on the spoil board creates an uneven surface which makes it impossible to further cut additional pieces precisely. In order to continue producing, the machine bed needs to be resurfaced. “Before resurfacing the bed,” Redl explained, “I take several large-scale prints. I apply layers of ink on the CNC bed, place archival print paper on the wet surface, and burnish the paper.”
After making the prints, the CNC bed is milled flat to continue production. The palimpsest has been erased and another palimpsest cycle begins.
close inset of CNC Palimpsest
Redl spoke of his inspiration for this artwork: “Well in one way, I just love the pure aesthetics of the patterns. I also wanted to preserve what had gathered over time onto this bed; I like the way that it functions to preserve a period of time in one image.” As to people’s responses to the work, Redl notes they are unsurprisingly varied. “Some people have commented that they first interpret it as some sort of architectural drawing. Others see a kind of representation of electronics.”
Art being in the eye of the beholder (and I suppose because I recognized that the print is “pulled” from a CNC bed) my response was to think it was pretty cool to blend the messiness of colors with the precision of the marks — human meets machine.
What do you think?… Leave comments below….
Other Works by Erwin Redl, Making Use of The ShopBot Tool…
DIAMOND MATRIX, 2014 410 suspended light panels with acrylic and animated RGB-LEDs 50 x 54 x 24 ft ft; 15.2 x 16.5 x 7.3 m Building architect: Perkins+Will New York Police Academy, Queens, New York, USA
For this installation at the New York Police Academy, Mr. Redl CNC’d pieces of acrylic that became framed and lit by LEDs. Some other views of this installation, highlighting various color configurations:
A Case of Reverse Engineering? Redl has transformed layers of (human-made) masonite to create woodlike pieces:
Wall Relief (wave diagonal concave), 2014; Arthur Roger Gallery Masonite, 30 x 30 inches
Wall Relief (cylinder concave), 2014; Arthur Roger Gallery Masonite, 30 x 30 inches
Wall Relief (cylinder convex), 2014; Arthur Roger Gallery Masonite, 30 x 30 inches
Mr. Redl, who purchased the ShopBot tool in 2010, spoke of his experiences with ShopBot. “I like to use the online Forum, because usually if I put up a question, it invariably generates a lot of useful answers in only a couple of minutes. I also enjoyed attending a Camp ShopBot in Detroit, where I had the opportunity to share my experiences using the tool and learn from others who use CNC on a regular basis. It’s wonderful to see what everyone is making.”