K'nexStrap

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K'nexStrap

Release status: concept

Knexwheel.png
Description
A k'nex RepStrap development
License
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K'nexStrap, a K'nex Repstrap

I always wanted to build a RepRap Prusa, but I couldn't get my hands on parts (yet). I tried something out in K'nex (see below), to print out Prusa's parts. I almost immediately broke up the whole thing, because it was to heavy for the motors. As souvenir on those build times, see the video in Concept 1, who's demonstrating the X and Y axes. Concept II is already started, see Most Recent Concept. It's without wheels, so it's MUCH more precise (or 'will be', as they say)


Good to know : the standard hole in the k'nex pieces fit m6 rod

Inspiration

Most recent concept

See video ;)

<videoflash type="youtube">Hf9xWANeIrs</videoflash>

History

Concept 1

<videoflash type="youtube">Gg21KHjvsHo</videoflash>

I started building a Y axis, with yellow half circles to form a path. I used 3 small default K'nex wheels, one without rubber, to form a big wheel. Then attached a motor, and placed it over the yellow parts:

Knexwheel.png

Afterwards I put some yellow halfs at 45°, to get the X axis running. I just placed a non-rubbered small wheel on top of it, and mirrored it to the other side. Watch the image below, I can't explain it properly

Knexwheelx.png

Volume

Net yet known, in development

Print volume

X: 170mm

Y: 170mm

Z: 110mm