Opto Endstop Holder for 3KU Delta by zsoltm

Last crawled date: 3 years, 1 month ago

Upgrade opto end-stop holder for 3KU Delta Printer.
This is one of the one of the most valuable upgrades to the original 3KU kits, it's way way better than the included micro-switch endstops.
I used 2 mirrored and one normal holder and just hot glued the endstops inside.
Buy opto endstops here: https://goo.gl/bUusJa
On the opto endstops pin G goes to negative (-), V to VCC (+), S to S on the RAMPS board.
The original firmware need to be altered as it has inverted endstop settings by default for the micro switches. Set all endstop inverting flags to false in Configuration.h and 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;
Similar to other designs around, but it's thin enough that there is no need for longer screws than the ones that came with the printer.
Feel free to comment, improve and if you made one please share.