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X3/SX3 SMALL MILL

HOME SWITCH MOUNTING

I wanted to mount the home switches UNDER the table for protection, so this is how I mounted them:

First a small angle iron drilled with mounting and switch mount holes:
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The two switches are mounted with one length of shielded twin pair cable. The strain relief is mandatory.
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All switch connections are soldered:
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The saddle is drilled & tapped to receive mounting screws:
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The top switch is activated when it contacts the stepper mount. The lower one will need a ramp/stop:
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The switch wiring is routed inside BX conduit for maximum interference protection:
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Both switch wiring and stepper wiring are routed under the SX3 base:
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All wiring is enclosed in cable protectors from Advance Auto store:
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Exit of stepper wiring and switch wiring from back of base:
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The Y switch actuator ramp/stop:
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Mounted to base:
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After adjustment, the ramp/stop is bent for repeatable support:
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Z home switch wire is routed through drilled holes in column. Underneath base, the wires join the
BX cable, then exit from back of base:
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Switch is mounted to simple aluminum plate and screwed into tapped holes in column:
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Wire is soldered to switch:
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That's it. I don't use limit switches for steppers--Only soft limits set in Mach3. You could use these three
switches also as limits though.

CR.















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