09-02-2022, 04:00 PM
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#1 (permalink)
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Master EcoModder
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Oddly Satisfying
This works as a proof of concept. The $50 servo motors are weak, and the arms are too flexible.
It starts with a 2D concept which is essentially a Watts 4-bar with the bars crossed. In 3D three bars works but four don't.
But it has an ingenious gear lash ajustment and it just mesmerizing to watch.
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09-03-2022, 04:27 PM
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#2 (permalink)
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aero guerrilla
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The mechanism is totally different, but watching it reminded me of this:
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is where you're going, not how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread
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09-03-2022, 05:57 PM
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#3 (permalink)
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Master EcoModder
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The red pentagram kinda spoiled it for me.
I imagine that the mechanism would be less wobbly if the links were made from metal extrusion, instead of plastic. Chamfered and drilled. Solve the cost per servo and one could make a snake or tentacle.
Tentacles over pentagrams any day, right? 
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09-03-2022, 07:45 PM
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#4 (permalink)
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Corporate imperialist
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I'm about to buy a 3d printer any day now.
I wasn't going to be making robots, more like "mobile devices " and parts for "mobile devices".
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09-03-2022, 08:48 PM
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#5 (permalink)
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Master EcoModder
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Cordless hole puncher?
Have you decide which one to get?
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09-04-2022, 01:47 PM
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#6 (permalink)
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Corporate imperialist
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I'm thinking Creality cr-10 and build it up to run nylonX for prints subjected to heat and shock.
A typical 220x200 and 300mm tall one does most of what I can think if making, but a 300x300 and 400mm tall one does most everything in the plane I would want to do it in.
It looks like I live in the ideal climate to do nylon
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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