Opto Endstop Holder for 3KU Delta

thingiverse

Upgrade opto end-stop holder for 3KU Delta Printer. This upgrade is a game-changer for the original 3KU kits, outshining the included micro-switch endstops by a wide margin. I used three holders: two mirrored and one regular, securing them inside with hot glue. Get high-quality opto endstops here: https://goo.gl/bUusJa On the opto endstops, pin G is connected to negative (-), V to positive (+) on VCC, and S to S on the RAMPS board. The original firmware needs a tweak as it has inverted endstop settings by default for micro switches. Edit Configuration.h to set all endstop inverting flags to false, then re-flash: const bool X_MIN_ENDSTOP_INVERTING = false; const bool Y_MIN_ENDSTOP_INVERTING = false; const bool Z_MIN_ENDSTOP_INVERTING = false; const bool X_MAX_ENDSTOP_INVERTING = false; const bool Y_MAX_ENDSTOP_INVERTING = false; const bool Z_MAX_ENDSTOP_INVERTING = false; Like other designs, this upgrade is slim enough to use the standard screws that came with the printer. Feel free to comment, improve, and if you make one, share it.