By Zac Bolan
By Zac Bolan
Scores of established and start-up 3D printer and scanner manufacturers clamoured for the attention of the curious wandering the Las Vegas Convention Centre at International CES 2014 this past January. With the explosive growth of 3D printing at CES 2014, it is clear the technology – also referred to as additive layer manufacturing – is evolving well beyond its engineering roots.
While continuing to deliver high-end 3D printers for prototyping and parts-on-demand applications, established players like Stratasys and 3Dsystems are now vying for dominance in the consumer arena. And in the wings, crowd-funded entrepreneurs and start-ups are bringing innovative products to a market eager for inexpensive 3D printing and scanning solutions.
In much the same manner of how Apple and Adobe democratized the graphic arts through desktop publishing, the 3D printing movement promises to change the way products are designed, manufactured, purchased and consumed. With basic printers selling for less than $1,000, 3D printing is no longer the exclusive domain of industrial designers.
Soon school kids and hobbyists will have the ability to produce surprisingly detailed models made from nothing more than imagination and inexpensive plastic filament. And if industry leaders have their way, the lady of the house will one day download designs and 3D print bracelets and earrings to match an outfit! The potential consumer rush to 3D printing is certainly the driving force behind Amazon’s late-July introduction of its 3D Printed Products online marketplace.
Tea – Earl Grey, hot
The replicator seen in Star Trek can make virtually anything magically appear on command, including a hot cup of tea, but today’s 3D printing technology is limited to producing solid objects based on computer-aided design (CAD) files. The design of most 3D printers is based on the 2D plotter with threaded rods guiding the print head horizontally in the X/Y axes. The 3D print head deposits malleable media in very thin layers to build an object before moving upward along the vertical axis and starting the next layer.
Layer thickness determines the resolution of the 3D object in the same way pixel density affects how images look on a printing plate – a thin layer means a smoother, more detailed object is produced. While most 3D printers use various forms of plastic filament to produce objects, industry-specific printers can print with a wide variety of media including resins, chocolate and metal.
If the additive layer manufacturing process sounds labourious and sluggish, it’s because it is; high-resolution printing of complex 3D objects can take hours or even days depending on size and media used. On the other hand, complex 3D objects such as gear sets and flexible chains emerge from the printer fully functional with no further assembly required, saving considerable time for the user.
Entry-level 3D printers are relatively inexpensive, but price quickly scales upward with higher resolution, larger build volume and diversity of print media. If you have read this far, you must be wondering if a conventional ink-on-paper printing company can stake a claim in this 3D printing gold rush – after all, you adapted to digital print, right? Can 3D printing be that different?
Testing 3D waters
Based in the city of Cranbrook, BC, Rocky Mountain Print Solutions (RMPS) has been serving the East Kootenays for more than 40 years. Owner/proprietor Don Wik and his team have navigated the turbulent waters of print evolution by taking their business into new directions. Two years ago, RMPS became the regional Konica Minolta dealer and now sells copiers to many of its clients in addition to print. And recently RMPS added 3D printing to the mix with the installation of a MakerBot Replicator capable of printing high-resolution objects with a build volume of roughly 10 x 8 x 6 inches.
“We’d been looking around for other business models and noticed a lot of industry talk about 3D printing. While we didn’t think there was a business case for a small printer to have a 3D printer, the idea of offering local manufacturing ability to our clients was appealing,” explains Wik. “We wanted to offer 3D printing so our clients could use it within their business, and create a buzz in the marketplace.
“The buzz generated by 3D printing is much cheaper than advertising, and we’ve noticed a substantial increase in support from our clients,” continues Wik. “We’ll bring clients in, expose them to 3D printing, and let them think about how they can use it within their own businesses, and that really is the value to our company.” Wik is not yet prepared to directly credit 3D printing for an increase in RMPS sales, but he has definitely seen more business since introducing the MakerBot to the Cranbrook market.
“We’re amazed by some of the objects we print for our clients, we often wonder why would anyone manufacture this way – it’s so slow,” bemuses Wik. “So while 3D printing has great potential, I find I’m more impressed with those who create and share files within the 3D community – the makers.”
The makers are an informal coalition of enthusiasts who design objects and create the necessary CAD files for 3D printing, many of which are freely available to the general public. Additionally, many 3D printer manufacturers host sites offering free or inexpensive CAD files for users to purchase, download and print.
In the early days of the 3D printing movement, MakerBot (the consumer brand of Stratasys) launched www.thingiverse.com, an online portal for things designed by the maker community. Through the site, users can download free Creative Commons licensed files to produce anything from a bearing clamp or a model of the Taj Mahal to a personalized doggy bowl. At CES 2014, MakerBot launched its Digital Store service to sell high-quality CAD files of toys and educational models aimed at a kids – another sign 3D printing for home and school is imminent.
Think global, 3D print local
Although most of the interest in RMPS’ MakerBot 3D printer originates in the Cranbrook region, the company has received commissions to print objects through www.3dhubs.com, a Netherlands-based service bureau service aggregator that enables 3D printer owners to register their device and offer printing services to the public.
“Through the MakerBot site, a designer in Calgary discovered RMPS is a supplier for the 3D Hub,” reveals Wik. “He was designing what looked like a case for a prototype of an instrument, a special instrument. We made the case and then shipped it to his home. Now did we make any money off it? Probably not, but I think as the technology gets more sophisticated and faster you could make a service bureau business case.”
POD, parts on demand
“We recently installed a new CTP device that punches the printing plates after imaging. We also use an external punch so the plates will properly fit on our press. Well, the external punch wouldn’t work with the new plates because one of the small guides wouldn’t accommodate the CTP punch holes,” explains Wik.
“We had someone build a CAD file for a part modification that would enable the punch to work with our new plates.” RMPS then printed the new part on its MakerBot, replaced it on the punch, and could actually use the machine again.
“After making the part, we talked to the supplier of the equipment, and will send them a copy of the modified part so they know what they need to do if they want to improve their punch,” says Wik. “With the 3D printer, we’re able to be part of the problem-solving process for graphics equipment, which we think is pretty unique.”
From letterpress to 3D
Wik and the RMPS team recognized an opportunity to showcase the company’s technology – both old and new – during Sam Steele Days, a major community festival hosted annually in Cranbrook. Outside the RMPS front door sits a cast-iron printing press manufactured in the 1890s, and just a metre away the company’s 3D printer sits inside the front window. As the Sam Steele parade passed RMPS’ front door, both presses were running for the inquisitive crowds.
“Everyone was quite impressed to see the juxtaposition of the two technologies running together,” explains Wik. “We’ve kept our old collection of movable type, so we have about 200 drawers of lead and wooden type. Although we were able to manufacture some movable type on the 3D printer we didn’t use it, as we didn’t have time to perfect the plastic fonts. But I believe with a bit of experimenting we could actually use the type from the 3D printer to print on the letterpress.
“You could probably use a 3D printer to produce a die for blind embossing on a letterpress if the right 3D print media is used,” envisions Wik. “Most small printers have gotten away from that kind of work because it’s too difficult and expensive to make the die. I believe we will be experimenting with that in the future.”
MakerBot parent company Stratasys already manufactures high-end 3D printers that use ABS polymer (the same plastic used to make Lego bricks) to make very hard objects such as the dies used for bending sheet metal for car parts. As 3D printers gain in function and replicate with a wider variety of media the Parts On Demand market is expected to grow exponentially – further strengthening a business case for 3D service bureaus.
Almost ready for primetime
For the commercial printer that makes a living replicating thousands of copies of a customers’ 2D images in the shortest possible timeframe, the sluggish process of producing one-off 3D models currently makes little economic sense from a manufacturing perspective.
When considering the innovative ways Rocky Mountain Print Solutions has leveraged its relatively small 3D printer investment, however, it’s easy to see why Don Wik and his team are excited about the future.
“The real value in diving into 3D printing is gaining an understanding of the new technology,” says Wik. “Implementing 3D printing is affordable and a good way to see what’s out there for your business: that’s the real payback at the present time.”
Zac Bolan’s blog: blog.softcircus.com