Refer to youtube video for Assembly https://www.youtube.com/watch?v=SWFJIXH6jFM Also a video of it in use https://www.youtube.com/watch?v=DuBtdkLYIj0 Just remember to glue a little magnet to the top of the rotating arm (top deploy arm) and half a small washer to the top left side of the Terminal Contactor Plug. The welder rod will need snapping off at the correct length for your printer, the Kossel Mini required 20mm removing. The 1.6mm CK standard collet may need the ends adjusting so the rod slides freely. The collet can be moved up and down in the collet body to adjust the probe for your printer. Setup: (For Kosel Mini) Set in Configuration.h define Z_PROBE_OFFSET (0, 24.0, -2.08, 0) Set in Marlin_main.cpp void deploy_z_probe() { feedrate = homing_feedrate[X_AXIS]; destination[X_AXIS] = 0; // T3P3 Kossel Mini R2 destination[Y_AXIS] = 67; // T3P3 Kossel Mini R2 destination[Z_AXIS] = 22; prepare_move_raw(); feedrate = homing_feedrate[X_AXIS]/10; destination[X_AXIS] = -23; // T3P3 Kossel Mini prepare_move_raw(); st_synchronize(); } void retract_z_probe() { feedrate = homing_feedrate[Z_AXIS]; destination[Z_AXIS] = current_position[Z_AXIS] + 40; // T3P3 Kossel Mini R2 prepare_move_raw(); destination[X_AXIS] = -40; destination[Y_AXIS] = 60 ; destination[Z_AXIS] = 40; prepare_move_raw(); // Move the nozzle below the print surface to push the probe up. feedrate = homing_feedrate[Z_AXIS]/10; destination[Z_AXIS] = current_position[Z_AXIS] - 35; prepare_move_raw(); feedrate = homing_feedrate[Z_AXIS]; destination[Z_AXIS] = current_position[Z_AXIS] + 30; prepare_move_raw(); st_synchronize();