https://hackaday.com/2018/11/13/hotend-becomes-the-z-probe-with-a-kinematic-coupling/
Hotend Becomes The Z Probe With A Kinematic Coupling | Hackaday
Nov 14, 2018 - 3D Printer tool changers are bedazzling to watch, but even failed attempts at tool changers can yield something marvelous. Such is the case for [Raymond] who...
the zwith akinematic couplinghotendbecomes