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18 volt cordless drill motor for spindle

Discussion in 'CNC Mills/Routers' started by pla melter, Dec 10, 2018.

  1. pla melter

    Builder

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    Has anybody tried a brushed 18 volt drillmotor for a spindle? Using a gear multiplier, can you get satisfactory speed? Just trying to repurpose a useful motor. I have an old Milwaukee and DeWalt motor just lying around.
     
  2. jeffmorris

    jeffmorris Veteran
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    I don't think that drill motors with gearboxes work well for CNC routing. Router motors are better suited for CNC routing.
     
  3. Gary Caruso

    Gary Caruso OpenBuilds Team
    Staff Member Moderator Builder

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    Hi Pla,
    Several problems with a drill motor and chuck.
    First it won't be very true running, drills are known for bad runnout.
    Also, it will not be very fast, top RPM will be something ~ 2000 RPM, for small end-mills typical need is ~20k RPM.
    Cheers
    Gary
     
  4. pla melter

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    I stripped motor bare, no chuck, bare shaft and was going to connect an ER-11A collet direct to shaft, or make a 1-4 gear ratio ER-11A extension with two bearing fixed. Locked in a router style clamp. Small scale milling. Plastics, Delrin, wood. I really want to do small aluminum parts.
     

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