K8200/3Drag Z axis bearing support (rework of http://www.thingiverse.com/thing:175137) by Brandano

Last crawled date: 3 years, 4 months ago

I reworked the geometry to eliminate non manifold faces, to clean up the geometry and to align the centre of rotation better to the original kit piece. I have also recessed the screw in order to be able reuse screw and washer from the Velleman kit, but I don't know if the 3Drag uses the same hardware. The distance of the shaft from the frame matches http://www.thingiverse.com/thing:232446
(and my own rework http://www.thingiverse.com/thing:443084).
The second picture shows the same object with a 2nd bearing mounted underneath it to ensure the axis cannot be simply lifted off the bearing holder, for example when the printer is used as a small CNC router. A word of warning. After several hours of use my print finally delaminated. I temporarily fixed it by gluing it back together and tying a zip tie vertically around it. I will probably beef this up and maybe work out a way for the zip tie to be a permanent feature.