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Show"N"Tell ( Your Machines) / Re: ? Big Bed Mill Retrofit
« on: March 20, 2011, 05:07:27 PM »
If you draw a line from the center of the carousel to the Z axis screw, the sensor is pretty much on that line. There should be a couple of #8 or 10 threaded holes in the rectangular tubing where it mounted. With the carousel locked, the sensor lines up with the notch in the wheel and will not be over any slots. The sensor tells the next position coming around, which switches on the motor braking and the lock cylinder. The tool number is binary with the outer most slots being the least significant digit. With the carousel locked at position 1, the sensor will be between 1 & 2 on the wheel. The inner slots (5th row) were not used on my machine. I have no idea why they put them in.
I did pull out my wiring diagram and there is another 100 ohm resistor in the supply to the LED. I have attached it in case you don't have it.
I know I have one bad channel on mine, so I'm just going to replace everything. Photosensors don't do well after 25 years and I will use the matching LEDs for whatever phototransistor I pick.
I did pull out my wiring diagram and there is another 100 ohm resistor in the supply to the LED. I have attached it in case you don't have it.
I know I have one bad channel on mine, so I'm just going to replace everything. Photosensors don't do well after 25 years and I will use the matching LEDs for whatever phototransistor I pick.