509,708 active members
3,098 visitors online
Register for free
Login

Search:

Type: Posts; User: BillStrahan

Search: Search took 0.00 seconds.

  1. Re: PM-25 Belt Drive Mod - 4700 RPM with stock motor

    No sir, just designed my system to allow a much larger pulley (and longer belt) and everything else in the spindle is stock.
  2. Re: PM-25 Belt Drive Mod - 4700 RPM with stock motor

    Yeah, I was intentionally driving it hard to see how it handled it. Motor got warm but not hot.

    Most of the time I'll be doing closer to 3mm depth of cut instead of 9, and on anything below...
  3. Re: PM-25 Belt Drive Mod - 4700 RPM with stock motor

    Timelapse of the pulley machining. First, I turned this blank manually in the lathe. Bored the center to 12mm, then turned down an 8mm length to an OD of 19mm. The 19mm part of the blank was then...
  4. Re: PM-25 Belt Drive Mod - 4700 RPM with stock motor

    And here is another youtube video that shows me validating the design with plastic printed parts. The lower half of the mount has been machined from aluminum but I printed the rest just to test it. ...
  5. Re: PM-25 Belt Drive Mod - 4700 RPM with stock motor

    FWIW, here's a quick upload to YouTube. I was testing it with 6061T6 aluminum. SpeedTiger 6mm end mill, 9mm depth of cut and 500mm/min feed rate. It eats aluminum now. I was stuck with about...
  6. PM-25 Belt Drive Mod - 4700 RPM with stock motor

    I searched all over for how to get more RPMs from the PM-25. Lots of options, but I took the simple approach (Maybe simple should be in air quotes?) and made a larger pulley for the motor, a new...
Results 1 to 6 of 6