Ive gone through and cleaned up a schematic for my machine. Hopefully this can help some people with their own machines.
The theory behind this wiring is not too complicated:
- Snap switch cuts off power to the whole circuit if the manual hand crank wheel is not retracted.
- Power switch turns on everything but the work light. The built-in indicator is hooked up after the above switch to only light up when it can run.
- The motor is a 3 wire configuration with a capacitor to create a phase lag on the second winding which starts the motor.
- The motor is controlled by one set of contacts on the relay.
- The start button puts power across the relay coil which starts the motor. The relay then latches itself through a second set of contacts, holding power on while the cut progresses.
- The cam end switch opens up power to the relay coil stopping operation
The one thing to note about this circuit is the start button will need to be held down as long as it takes to rotate the cam off the end switch.
With the machine operating properly I now need to figure out how to get the shoulder stop bar setup correctly so it makes good keys.
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