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Search results

  1. Johnwa

    Compound needs a better degree dial

    @jcdammeyer i have a 600 ppr optical encoder that I hope to use as a standard. I plan to gear it up by about 1:5 with timing pulleys. That will give me about 3000 ppr which should be good enough.
  2. Johnwa

    G3616 Conversion.

    I’m not sure how it all goes together but couldn’t you just make a new mounting plate for this?
  3. Johnwa

    Compound needs a better degree dial

    Perhaps a bit of background on my AS5600 project. I was attempting to cut a 100 tooth gear using my electronic indexer. If I had a dog I might have kicked it when I ended up with 100.5 teeth. The encoder test was to see if I could use it to warn of lost steps. That’s when I found that the...
  4. Johnwa

    Compound needs a better degree dial

    If 10ths are enough then the simplest would be to replace the existing pointer with a vernier scale.
  5. Johnwa

    Compound needs a better degree dial

    The board has a circular outline with a few pieces lopped off. The sensor is in the center of that circle. The outline of the board is centred between the 4 screw holes in the stepper. Fairly easy if you have a 3D printer. I assume that alignment is fairly critical. My setup was to test the...
  6. Johnwa

    Compound needs a better degree dial

    @PeterT Heres a few pictures of one installed on a stepper motor. The 3D print holds the sensor chip concentric with the shaft axis. The magnet is glued on the end of the stepper shaft. It was aligned with a 3D printed ring.
  7. Johnwa

    Compound needs a better degree dial

    @PeterT The circuit board is stationary. The axis of the magnet is centered on the ic on the board. The magnetic field of the magnet is radial so the N/S poles are on the circumference. As the magnet is rotated the ic detects where the poles are. The board sends that position to an attached...
  8. Johnwa

    Compound needs a better degree dial

    @Susquatch The 3 wire connection is for PWM output. I soldered wires to the little fingers on the other side of the board and used I2C to communicate with the board. IIRC it sends a digital position. I don’t believe it utilizes any Quadrature signals. I 3d printed a mount for the board and...
  9. Johnwa

    Sourcing Metal | General Discussion

    I’ve seen cabbing machines with 4 wheels and only supported by two center bearings. I think the center portion of the shaft was thicker than 1” though.
  10. Johnwa

    Water fountains and water control.

    Its not a valve but I’ve used this as a level indicator https://www.aliexpress.com/item/1005005582058494.html?
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