My Customized Parametric Rigid Coupler 3/8
thingiverse
Customized version of http://www.thingiverse.com/thing:964671 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=964671 Works well with my QUBD TwoUp, original Z coupler was misaligned. I have it working with thing:962471 which attaches the Z rod to the top handle and the 8mm rod. got rid of most z wobble on my prints. Instructions Using the following options: Ht = 28.0 H2 = 1.16 M4_DZ2 = 21.0 M4_DZ1 = 7.0 IresSmall = 34 M4Nut = 9.25 M4 = 3.65 M8 = 9.8 M5 = 5.2 M4_DX = 6.75 GapDist = 2.2 OD = 19.6 PartType = 1 IresBig = 88 BoltLen = 12.7 ODT = 12.2 Custom Section Before and After, tons of improvement on the z wobble, but still much room left for improvement. thing:962471 Bearing Holder, If you have Z wobble issues, this is a must, but requires a brass bearing holder from Home Depot. after converting 3/8
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