Z Axis Optical Endstop for Geeetech Prusa I3 Pro

thingiverse

This appears to be a document detailing modifications made to a 3D printer's Z-axis adjustment mechanism. The writer has made several improvements, including shortening a vertical blade on the X carriage base to prevent interference with the knob and adding a new part, Base 2. The text also provides notes on how to assemble the parts, including: 1. Using steel washers on each side of the spring to prevent backlash. 2. Polishing the ends of the spring to prevent binding against the washers. 3. Cutting off the head of the nail and rounding its end to prevent catching in the printed hole. 4. Pressing the nail into the sensor holder, which should fit very tightly. 5. Using CA glue if necessary. Additionally, the writer provides notes on how to finish holes with a drill bit or file, particularly for the smooth rod hole, which should be comfortably loose and smooth. The text also includes print settings used by the writer: * Rafts: No * Supports: No * Resolution: 0.2LH (layer height) and a 0.4 mm nozzle * Infill: About 20% with 3 top/bottom layers Finally, the writer notes that the printed pieces should be filed to ensure the flag holder hangs squarely over the fixed bracket, and that the nut cavity in the lower fixed bracket may need to be cleaned out if infill falls into it.