Kossel removable magnetic mount for endstop based z-probe with zero X/Y offset. Experimental.

Just experimenting with zero offset z-probes - to avoid offset problems because of effector tilting.

Six 9mm-10mm magnets like these for $4 12-pack http://www.homedepot.com/p/MASTER-MAGNETICS-3-8-in-Neodymium-Rare-Earth-Magnet-Discs-12-per-Pack-07090HD/202526371

Update: added another version with wider body.