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TwoUp main Modifications

by McKraken

The original extruder wasn't efficient and reliable. So I replaced it by a home-designed holder + a Geetech extruder.
The new holder has been designed with OpenScad and was the las piece printed with the original extruder.
This thing is available on thingiverse :
http://www.thingiverse.com/thing:604586

To improve the rigidity of the X axis, I have added a second Z axis (screw+nut+stepper).
The printer and the second Z axis are fixed to a MDF plate. See details on my blog :
http://www.astrokraken.fr/2015-01-24-un-double-axe-z-pour-imprimante-3d-qu-bd-twoup-a114396206

Last modification : a "shell" to give to the printer

Do anyone have solutions to improve the rigidity of the Y axis ?

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