aduy's precision endstop.

thingiverse

Please redownload the updated file; I've fixed an issue. My custom endstop is based on Jedynak's design, using two Bic pens for smooth rods and eliminating slop. The M4 screw is supported by both ends to minimize wiggling. This is a work in progress, so suggestions are welcome. To build it, you'll need 2 x 20mm M3 screws, 4 M3 washers, 2 M3 nuts, a long M4 screw, a long spring (20-30mm) for the M4 screw, and 2 Bic pens. Ensure you use support material for the overhanging parts. Drill snug holes for the Bic pens in the main frame and drill endstop holder holes with minimal slop for fitting on the Bic pens. Install the M4 nut in the nut trap, then place the M4 screw through the top hole of the frame, followed by the spring and endstop holder. Smooth the angled faces for better fit.