Z-axis mount for NEMA17 motor (Darwin)

thingiverse

Important note: Don't forget to participate in the http://RepRapSurvey.org if you haven't already! A big thank you to those who have. Now, let's focus on the topic at hand. If your Z-axis runs smoothly due to bearings on the Z-threaded rods, there is no real need for a heavy NEMA23 motor. The NEMA23 motor may only be heavy and costly for Darwin's X and Z axis. So, consider using cheaper NEMA17 motors for your Z-axis instead of NEMA23. Similarly, if you use NEMA17 or NEMA23 motors for your X axis, refer to my other post on Thingiverse: http://www.thingiverse.com/thing:1525. This alternative setup not only saves cost but also reduces the moving mass that the Y-motor needs to move back and forth. Consequently, you can use a lower current for the Y-motor or even consider replacing it with a NEMA17 motor. For your convenience, I've uploaded all parts required for the Z-axis assembly, including designs for a pulley and skate bearing brackets that fit onto corner brackets. These assemblies are designed to work efficiently with tapered M3 bolts, which can be easily found at any hardware store.