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YAK - Yet Another Kossel

by zeke7237, published

YAK - Yet Another Kossel by zeke7237 Feb 5, 2013

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I've got a pile of OpenBeam and Open Rail and was looking for a printer design to adapt. I found Kossel, then the Wolfstock derivative based on Mitsumi extrusion. I decided to adapt Wolfstock to my stuff ..


2-16 .. frame constructed, steel cables added to eliminate twisting between top and bottom triangles

I'm just about to the place where I'm ready to melt plastic and cut aluminum ;) I've managed to get the math worked out just about everywhere and the rendering in openscad looks pretty good.

I've also removed the individual files, it's too much of a pain keeping up with changes! Check github for the latest, and I'll try and keep a zipfile up to date here.

If you want to build in OpenSCAD, download all of the files and put them in one directory, then open and compile yak.scad. You might need a later version to get it to compile (I'm on 2012.07.18). Everything is mostly parameterized .. the stuff you want to change is all in yak_config.scad

I suspect I'll end up enhancing the openrail framework with various stiffeners ..

See also http://www.thingiverse.com/thing:45913 for OpenRail pieces

Assemble frame, print rod mounts and end effector, add extruder of choice

Adapted from Wolfstock ( https://github.com/wolfmanjm/wolfstock )
and Kossel ( https://github.com/jcrocholl/kossel )

Latest at https://github.com/zeke7237/yak

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I'll be interested to see how you stabilize this. My Wolfstock has a sway at the top and sides. I think I may need to build a box around it.

yah, me too ;) I'm initially going to stick with Johann's dimensions, and I'm thinking of diagonal cross braces at the top and bottom and a diagonal wire with a small turnbuckle across each side. OpenBeam includes some nice 45 degree plates that should work well for the top and bottom. I need to pick up some hardware tomorrow or Friday, and hopefully I'll have the frame knocked up this weekend sometime.