We chose waterjet because we're trying to come up with processes that involve the absolute least amount of setup and work. Waterjet on the first pass means we don't have to come back and do any secondary/post machining. To be clear, we don't have a waterjet ourselves, we're just shopping it out for now.
Stompy is being built in Artisan's Asylum, which is located at 10 Tyler Street, Somerville MA. Our initial round of demo days will be in the Artisan's Asylum parking lot, which is adjacent to us. We'll be announcing the exact demo day dates at least a month or two in advance, and expect them to be mid-April to mid-May.
We expect everything below the $100 level to ship for around $10 to $20 more. Please use the "International Small Flat Rate Box" option on the US Post Price Calculator (http://ircalc.usps.gov/Default.aspx?country=10150) to calculate how much you need to add to your pledge for shipping for a T-shirt, and the "International Small Flat Rate Envelope" for the wristband/sticker/etc.
Most of the art-based walking vehicles out there use reciprocating legs tied to a crank shaft to walk. This means they like walking in straight lines, or turning in place, but otherwise behave very similarly to a zero-turn-radius lawnmower. These vehicles are restricted to very flat terrain like the playa as a result. Because Stompy has fully independent control of 6 legs, it can walk sideways, turn in arcs, and walk over extremely rough and broken terrain, as it has the ability to sense the ground with each footstep.
Those machines are extremely expensive and generally closed source. What is open source is way out of the range of anything a hobbyist could pull off - all of them require extremely precise engineering and design. Stompy is on the order of 1/10 the price of either, open source, extremely simple, and (fingers crossed) just as capable.
Kind of? Legs scale very strangely - at Stompy's scale, his actuators are less than 1/4 of the weight of the leg, and are on the order of 1/10 the volume. Translating the "look" of Stompy to a smaller robot is very hard, as weight and actuator power scales funny with length as you get small. Servo-based robots have legs that are primarily made of... well... servos, with some tiny bits of metal or plastic holding them together. We'll definitely take a look at what it would take to make a scaled-down model robot, but we want to make sure we can build the big one first!
Absolutely. Artisan's Asylum is a public workshop, and you should come check us out over the next few months as we build Stompy. Artisan's Asylum is at 10 Tyler Street, Somerville MA, and is open from noon until 8PM. We'll be announcing the demo days publicly, so that others can come check out the robot while it's running.
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