Shapeoko Spindle Z Probe

thingiverse

This is a custom z probe that I built for my Shapeoko 2 with DC Spindle. The main idea behind it is to make levelling easier. I use GRBL 0.9 and bCNC, which supports z probes with G38.2 and can calculate auto-levelling. Initially, I was using the spindle with an end mill in it and a piece of aluminium touch probe for levelling but got tired of moving the aluminium around to check 16+ points in the auto-levelling scan run by bCNC. I looked at 3D printers and what people had done with auto bed levelling, eventually deciding on a micro switch in a 3D printed housing that just clicks onto the shaft of the DC spindle and has a set of jumpers to allow me to disconnect it when ready to cut. Hopefully this helps others out with levelling their Shapeoko. The micro switch is attached to the housing with an M3x18mm machine screw with nut. Video: https://youtu.be/a3QV9pdA2DU I ran a simple 5x5 auto level scan with bCNC over a 400x400 area (25 probe points) and it took roughly 10 minutes, which could be reduced by moving the Z a little bit closer to the work surface so it doesn't have to move as far. I added screenshots of the progress over a piece of 6mm plywood that was quite warped even when clamped. Print Settings Printer Brand: RepRap Printer: Prusa V2 Rafts: Doesn't Matter Supports: No Notes: I printed this in ABS with no raft and 15% infill. How I Designed This I measured the spinning end of the spindle and entered its dimensions into Sketchup, then designed a simple mount for a microswitch. Next, I designed a simple clamp for the spinning end of the spindle and joined the parts together.