LowRider2 Z Endstops to Home Up

prusaprinters

<p>I remixed TheMaxx's remix:</p><p><a href="https://www.printables.com/model/43716-lowrider2-z-end-stop">https://www.printables.com/model/43716-lowrider2-z-end-stop</a>&nbsp;</p><p>of rreinier's Z axis tube bracket. &nbsp;</p><p><a href="https://www.thingiverse.com/thing:3323447">https://www.thingiverse.com/thing:3323447</a>&nbsp;</p><p>I modified TheMaxx's .stl by scaling to 101.6% in all axes to fit 25.4mm tubes and also added 1.5mm of additional thickness to the bottom that has a 1.5mm fillet on the bottom as well to match the top. &nbsp;I used a M4x16mm screw and M4 locknut to secure on the Z tube approximately near the bottom of the leadscrew.</p><p>The intention is that a bracket on one tube on each side of the lowrider2 is angled out to hit a microswitch mounted to the outside of the Y plate when homing up.</p><p>--</p><p>I also added a custom microswitch holder to complement this Z Stop bracket that fits on front face and the underside of the LR2 Y Plate. &nbsp;I designed it to be superglued to my printed Y plate but have the switch replaceable using M2x12 screws although I believe shorter M2x10mm screws should also work. &nbsp;The large flat angled side is the top. &nbsp;I printed it and think it came out well. &nbsp;This should allow the LR2 to Z home up. &nbsp;I used Omron SS-3GL13PT microswitches.</p><p>I recommend connecting to the Normally Closed position on the switches which are the outermost terminals on those switches.</p>