Print-in-Place KILLBOT mini v2.1
by ThreeHamsWillKillHim, published
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Even a vast robot army must begin with one tiny killbot...
UPDATE: Maximal thanks to all who uploaded pics of their killbots!
Print-in-Place sitting robot with articulated arms, legs and a head you can spin and lift from the bottom!
13 moving parts in total!
- Head can be spun in place and controlled from between the legs. The head pops down 2mm to reveal the wheel that can turn and sorta bounce it.
- Arms rotate at the shoulder and above the elbow, and bend 90+ degrees at the elbow.
- Hands designed to hold on to a standard pencil (7.5mm).
- Legs bend in three places, very human-like.
- Hips move up 3mm to lock in standing position, for stability.
- Love switch stuck in ON position, for safety.
- Required support is included and minimal.
Please share pictures if you start your own army! :)
And if you have any issues, let me know in the comments, as I did debug this thing for days and I don't think it has any of the obvious issues PIP things sometimes have.
Inspired by the Maker sitting robot as well as other cool PIP toys (links below).
I went thru about 20 designs (~15 printed), testing hinges, joints and their tolerances, and I even tested a few versions where pressing a button/the head lifted the arms 90 degrees... (eventually worked but was too tall and clunky and also disables free rotation of the arms) Please check out versions 14 and 16 to see what I mean and get ideas, I'd love to see this used more appropriately, maybe not in a robot... To be frank, I'm not very happy with the head mechanism, I'm pretty sure if you're old enough to pretend it's a working robot, you might as well pretend you're not spinning the head with your fingers. Also the joint stiffness or lack thereof depends on material and temperature too much... But I'm moving on, probably to supine robots...
Maker robot http://www.thingiverse.com/thing:331035
Wip robot http://www.thingiverse.com/thing:1134277
If you print it and love it, please do upload a Make and consider tipping! :)
Also please check my profile for my Etsy, Pinshape etc...
I think 3 shells and 10% is better than 2 shells and 20%+ infill, tho it's only a little faster.
To clarify, when I say "no-support" I mean you don't need to add any. Still, each arm has a support I couldn't do without because often one or both arms get knocked over and ruined, in the direction perpendicular to the front. This then allowed me a couple of overhangs along the arm (tho early versions circumvented that).
Best of luck!
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Print-in-Place KILLBOT mini v2.1 by ThreeHamsWillKillHim is licensed under the Creative Commons - Attribution - Non-Commercial license.
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