Printrbot + Upgrades [X-bridge, Extruder Mount, Y-Clips...]
by PolakiumEngineering, published
These files include all of the parts I designed for improving my printrbot.
For a complete description of my modifications read here: http://polakiumengineering.org/?p=1905
The final revision is now uploaded, all of the tolerances should be perfect for properly configured printrbots.
Updates: 9/24/12 - X-stop is fixed in place, non-adjustable 10/04/12 - Motor mount now compatible with 28mm 36 Tooth GT2 Pulley 10/09/12 - Added LME12UU compatible parts. (See notes) 03/01/13 - Replaced by V2.0 http://www.thingiverse.com/thing:55845
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For more pictures and complete build instructions go here: http://polakiumengineering.org/?p=1922
If the alignment of the Z-stop is off, heat the arm of the motor mount with a torch/lighter/heat gun, then bend and hold the arm to its proper alignment until cooled.
- Tolerances for the length of the LME12UU bearings are very close. Fitting the bearings may require additional finishing. One way of setting the bearings is to soften the plastic with a torch/lighter/heat gun before pressing the bearings into place.