Supper cheap & simple 3D Probe digitizing cnc
grabcad
yeah, with a few pieces of arcylic & pcb board and a broken cnc knife :Dthe 2mm & 3mm is alumilum you can grab from toy & coat hanger ;)the 1.6mm thickness is pcb board, you should solder steel ball and 3mm pipi to itthe 3mm & 5mm thickness is arcylic :)the spring you could get it from a pen and 3mmx40mm screws with nuts :)the driver for the probe you can download at https://oshwlab.com/tungbuivn/3dprobethe circuit has the protect from wrong polarity.the P1 is power source and connect co +24v & GNDtwo wire from P2 connect to the probe and one wire P3 connect to the mach3 or grbl,
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