RepRap Wallace/Wallace++ Compilation Edition

Update: 17/03/15

Added y_motor_holder_rack.stl as the .scad file requires the original wallace scad config file.

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Added y bearing retainers.

• y_bearing_retainers_4x.stl
  this is a set of 4 retainers nicely arranged

• y_bearing_retainers.stl
  one single retainer

• y_bearing_retainer_stopswitch.stl
  y bearing retainer with an assembly for a stopswitch
  I personally do not use this. This is here just for principle of
  completeness.

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Description:

This is a compilation of the original Wallace (http://www.thingiverse.com/thing:14208 ; be sure to check out whosawwhatsis's github for the current files at https://github.com/whosawhatsis/RepRap-Wallace) and the Wallace++ M8 Edition (http://www.thingiverse.com/thing:45207) plus a Y axis modification made by Komb (http://www.thingiverse.com/thing:37787)
The base is from the original Wallace.
The x_end_* parts are from the Wallace++ M8. I modified the diameters for the bearings to be a bit wider. I did not manage to get the bearings in with sponnets configuration.
The Y axis mod replaces the belt with a rack & pinion system for more stability and rigidity.
This was all printed on a QU-BD TwoUp with PLA.
I use the Merlin Hotend on the Gregs Wade Extruder Reloaded without cooling. The Merlin hotend is designed as a passive cooled hotend and the first print test confirmed it's passive cooling abilities. However the PLA needs proper cooling to achieve a good print quality.
The 3rd picture shows a 0.5mm wide wall-only cube. Left is 0.3mm layer height, right is 0.1mm @ 60mm/s (Perimeter). This was the very first print I did on the Wallace after I had calibrated all the axis and the extruder.
RepRap Wallace in action printing the 0.5mm Thin wall from "The Essential Calibration Set" -> https://www.youtube.com/watch?v=FR-oc-ztBJA&list=UUXx2upMv_Z5ginBt-ge_1gQ