Hall Endstop Mounts for Delta Printer

thingiverse

These are straightforward holders for Sainsmart Hall endstop sensors. I figured it was time to take them off the shelf and design holders that adapt them to a 2040 aluminum extrusion format for a 1M Delta Printer (https://github.com/electronlove/DeltaSpasm). The carriage is a remix from Norwegian Creations' magnetic ball joint carriage, with the addition of a mounting point for magnets (https://www.norwegiancreations.com/2018/01/building-a-large-kossel-delta-printer-pt-7-design-files/). Hall endstop holders can be printed at 35% infill with four bottom and top layers. The carriages should be printed at 100% infill for added strength. I used a 5/16" drill bit (~ 8mm) to clear out the hole for gluing (two-part epoxy) magnets in place. Magnets were purchased from Home Depot (0.3" x 0.11" neodymium magnets), but their width was a bit larger than 0.3" in diameter. M3 screws are used all around to hold the endstops securely in place, and with the magnets, they trigger at approximately 10mm, which should be perfectly acceptable.