After a few years of testing, I’m finally able to break the news: I’ve got a walking quadruped! It’s sincerely exciting, especially as the way I finally got it to work also involves some incredibly common FDM printing technology and easy-to-come-by casting rubbers.
The new quadruped, called the Glaucus, walks using only two input lines. It has hollow interior chambers that interdigitate with one another. When either of these chambers is pressurized it deforms and bends the structure of the robot. This bending produces the walking motion. It is similar to how a salamander walks, by balancing itself on one pair of legs diagonal from one another while moving the opposite pair forward.
Rather than go on here in too much detail, I’ll link you to the other things I’ve released about the design. There’s a tutorial on Adafruit, downloadable 3d print files on Thingiverse, photo documentation on Flickr, and a video up on Youtube.
Long time no see, folks. I’ve got some great news for you. I’ve finally found a method for getting super complicated geometry locked inside of a seamless skin. It’s taken a lot of prototypes to get here, but I think the results are more than worth the effort. There are some wrinkles to iron out (which I’ll get to below) but all in all I think I’m incredibly close to rapid-fire casting working quadrupeds, ready to go in just a few short steps after popping the mold. In other good news, I’ll be dropping some files very soon which should get you your very own working quadruped using any FDM printer. All you need is a Makerbot or similar, a few hours, and some casting materials to have an exact duplicate of my most sophisticated robot to date.
To start, the building used to be an IBM adding machine factory and showroom. When JJ’s took it over, they installed a lovely wood exterior. So, on the plus side, there is a lot of old NYC richness both inside and out. On the downside, the wood exterior had fallen apart in the intervening years. Part of my job was to see through the decades of wear and tear and come up with a plan for refurbishing everything to resemble the original without spending thousands on custom parts. Fortunately my friend Clark put me in touch with a few very talented carpenters. So, with some meetings and design drawings, they were rolling on building the elements for the exterior. More »
A year or so back my long time hacker friend Dichro made some lock pick earrings to wear in case of emergencies. Di asked me to give a go at some slim, elegant, sophisticated ones that pass as everyday jewelry. After some poking and testing and experiments, I believe I’ve come up with just that.
An elegant accessory, perfect for quick escapes, late nights, and lost keys. These acid etched stainless steel earrings are lightweight and feature a selection of picks, rakes, and a tension bar. They're decked out with silver plated rings and ear hooks.
I’ve been really excited to work with Pork Pie Hatters over the last few months. I’ve made hat stands, hat blocks, and some fun laser cut experiments for them and it’s been sincerely fascinating to find ways to blend their classic hand crafting tools and techniques with the kind of digital fabrication that can bring mass production polish to boutique small run items.
As part of defining the look of Pork Pie Hatters products and bringing some cohesion to their packaging, they commissioned me to make a set of huge stamps to brand their cardboard hat boxes. Since these giant roller stamps would be inconvenient to hide away in their stores, I decided to make the whole design fit with the old school aged wood aesthetic of the rest of their equipment. More »
As part of a series of projects for Pork Pie Hatters, I’ve been reviving some old hat making equipment through a combination of laser cutting, CNC milling, and some older tried and true fabrication techniques. My favorite of these projects has been a series of hat blocks designed in SolidWorks and milled in ash.
The five Phrenology hats: Adler, Kinsey, Maslow, Freud, and Briggs.
The goal has been to recreate a number of classic hat styles for a complete production run of custom hats. The hats themselves are being fabricated at the Pork Pie Hatters Williamsbug shop. The major challenge of this project has been to recreate a complete series of hat blocks from a series of reference forms and drawings, keeping in mind the key elements crucial to each particular hat style. It would be simple to make a series of hat blocks fit for a complete set of head sizes by taking a single design and scaling it up or down. But, the crucial gesture of each design would be lost. The features like pinches in the front, the curve of the ridge along the crest of the hat, the indent at the top of a pork pie, all shift and scale independently to work holistically on different sized heads. More »
Over the past few months I’ve been working with Melissa Dowell to make these lovely Narwhal Skewers and now (after a good deal of prototyping, experimentation, poking, and prodding) they’re finally out. The process that went into these is actually kind of fascinating first because of how difficult it was to hone in on the right way to design these in CAD and secondly because of how many different directions we explored before finally landing on the final design.
Left to right: The earliest narwhal sculpt by Melissa, the first printed prototype, and a revised prototype.
The whole project started with some sketches from Melissa. From there we chatted about ideas, industrial design considerations, and manufacturing constraints. I felt that it would be reasonable to fasten a twisted rod into a cast metal handle and we could core out the handle to provide both the fastenings for the rod and minimize weight and material.
Melissa sculpted an oversize polymer clay narwhal that we finessed and modified until it had the desired gesture and proportions. From there, we took it to Numidas Prasarn to get the thing scanned and digitized. More »
We’ve seen the story about the kid getting punished for eating a Pop-Tart into the shape of a gun in school. Most likely you’ve seen some meta-journalism about the hype cycle on this, what the constant terror about guns means for the state of humanity, and exactly how much navel gazing is appropriate based on one inconsequential piece of news. Chances are you’ve also seen some truly awful leader images for those stories as well. Numi and I set out to change that.
We’ve made a selection of creative commons high resolution images of high fidelity pop tart guns for you to use to your heart’s content. Download them. Use them. Remix them into a food gun collage bonanza. The sky’s the limit.
This will be an update on the things I’ve learned molding quadrupeds over the last couple of months and some previews of the new robots I’ll be experimenting with in the next few weeks. To start, I’ve had the chance to run a gaggle of design experiments ranging from small changes to the particular silicone I’ve been casting, to more radical changes to how the whole plionics manufacturing process comes together.
I’ve discovered that molding complex channels of tubing can be extremely difficult, and the CAD equally infuriating. I’m discovering some automatic routing tools in SolidWorks that could streamline the process, but there might be another solution that sidesteps that whole mess entirely. It’s possible to cast around silicone tubing that’s already connecting up all the interior geometry. So, what I’d have to do to get the design working is build the cores with little fastenings for plugging in tubing and make sure all the tubes have enough clearance to get past one another. I’m anticipating the world of reality doesn’t let me off the hook that easily, but it’s a start. More »
I’ve been designing things for Pork Pie Hatters for a year, now. This has included their site, a custom door, some signage, an extra large stamp, a series of hats, and a host of other things. Recently, we’ve been talking about displays, interior decoration, and finding ways to maximize the hats on display while keeping a lid on the clutter. The main problem with selling anything in Manhattan is finding a place to put any stock that isn’t out on the shelves, and the problem with buying anything in Manhattan is sorting it into your microscopic apartment. So, I came up with some flat pack hat stands.
The idea is to send folks home with hats on their heads and a flat pack hat stand, so they don’t have to find room in their lives for a hat box. Traditionally hat boxes come as flat cardboard assemblies that you construct into these 2′x2′x1′ nightmares, or they’re fully assembled oval extrusions whose main aim in life is to take up space. More »
Smooth-On visited a few weeks ago to get video of the Glaucus in action, and they left with their very own cast copy to play with. Now they've got it hooked up to air and walking incredibly fast. They're currently printing out molds to cast a duplicate in-house. […]