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PCB used as a RPM Sensor on CNC Lathe conversion.
Z Axis Homemade optical switch on X2 Mill.



The PCB use in the Encoder can be used as an Optical limit switch.
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This is a simple test setup for a 50 count optical homemade encoder. In quadrature 4 x 50 = 200 ppr. One rev.
= .200 with 5 threads per inch (TPI). This Disk is 4 1/4" in Diameter with 50 slots for 1 thousand (.001) of an inch
resolution on the DRO. This could also be used for Manual Pulse Generator (MPG), by adding a detent for incrementing.

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