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CNC Tool Probe

CNC Tool Probe

grabcad

Simple normally closed (active high) tool length probe used for my Stepcraft 420. Plunger (4mm rod) is spring biased and opens the contacts when depressed. Contacts are simply a nut and washer. Height (22.48mm in my case) is entered into the M31 macro in UCCNC. Spring OD is <6.4mm and needs about 220g to open contacts

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