yru's exstruder - golem's accessible Heart - yegahC (from golemC project)
check new version - http://www.reprap.org/wiki/Yegah
openSCAD SOURCE RELEASED under GPL - File:YegahC rel 20121223.scad
kickstart to custom gears CAUTION! verify diameters! Media:YegahC_xmasgears.tar.gz
and 33mm should work with old stl Media:YegahC_33mm.tar.gz
new extruder, thought out from scratch to be compact, simple, accesible and light. for the golemC "stone" printer
still fine tuning design, stl's soon, openSCAD files will follow.
it's designed around my very first aproach to drive roller, refinded by trial and error. instructions how to mill one will follow, feel free to make one for yourself but please, if you want to buy one, make sure the autor gets some material credit and buy here (http://mojreprap.pl/index.php?route=product/category&path=24) or contact me.
small crescend shaped teeth grab firmly (5 kilo for the smooth compact one from the vid) while cutting in with ease. se here for easy cut in: http://www.youtube.com/watch?v=vtdbHg0bXEE and here for gravity feed: http://www.youtube.com/watch?v=fIRYETuT_ZM
6mm shaft and small 6x13x5 ball bearings reduce weight to about 90g without engine (the red body/black gear ones)
no springs yet it adapts to minor filament changes - idler is mounted via elastic PVC pipe.
it's milled to fit 3mm filament, but works fine with 1.75 too. still, i will try to make even smaller design for 1.75mm specific.
2 base flavours: - compact - more mendel friendly
- big gear ratio for open top printers and heavy filament pumping
beta stl, openSCAD sources need some more work. I plan on giving them out for x-mas :) <-- so, x-mas came early this year :)