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Motor control from power pack

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  • Member since
    October 2003
  • From: Lincoln, NE
  • 111 posts
Posted by paxton58 on Friday, February 13, 2009 4:18 PM

 How do you set it up?  Have any plans?

  • Member since
    December 2004
  • From: Pa.
  • 3,361 posts
Posted by DigitalGriffin on Friday, February 13, 2009 3:39 PM

Don - Specializing in layout DC->DCC conversions

Modeling C&O transition era and steel industries There's Nothing Like Big Steam!

  • Member since
    October 2003
  • From: Lincoln, NE
  • 111 posts
Posted by paxton58 on Friday, February 13, 2009 1:12 PM

 I am experimenting and wanting to turn a 5/16 threaded rod to move a transfer table 12 inches in a reasonable amount of time.  Instead of trying to find a motor and gears, I was going to try to attach the drill chuck to the rod  and both reversing and speed control.      

  • Member since
    December 2004
  • From: Pa.
  • 3,361 posts
Posted by DigitalGriffin on Friday, February 13, 2009 12:41 PM

What kind of motor speed and torque do you need?  And what's your upper limit for $$$?

Don - Specializing in layout DC->DCC conversions

Modeling C&O transition era and steel industries There's Nothing Like Big Steam!

  • Member since
    October 2003
  • From: Lincoln, NE
  • 111 posts
Posted by paxton58 on Friday, February 13, 2009 12:34 PM

 I do have a short across the motor leads.  Thanks.  Now I have to find another alternative.

  • Member since
    July 2003
  • From: Sierra Vista, Arizona
  • 13,757 posts
Posted by cacole on Friday, February 13, 2009 11:31 AM

 Did the motor still run when you removed it from the drill?  From your description of what is happening, my guess is that the motor is bad and should be discarded.

  • Member since
    February 2007
  • From: Christiana, TN
  • 2,134 posts
Posted by CSX Robert on Friday, February 13, 2009 11:25 AM
I suspect the drill motor tries to draw more amperage than the power pack is able to provide.
  • Member since
    January 2001
  • From: SE Minnesota
  • 6,847 posts
Posted by jrbernier on Friday, February 13, 2009 11:22 AM

  Sounds like it is shorted, as the voltage drops when you connect it.  Does the power pack have an 'overload' indicator or a 'reset' button that pops?

Jim

Modeling BNSF  and Milwaukee Road in SW Wisconsin

  • Member since
    October 2003
  • From: Lincoln, NE
  • 111 posts
Motor control from power pack
Posted by paxton58 on Friday, February 13, 2009 11:13 AM

 I am trying to use a salvaged 9.6vdc electric drill motor to power an accessory.  I tested it by attaching the motor leads to the DC from a power pack but it wouldn't turn.  When it is connected, it reads minor voltage.  Unconnected, I get maximum from the power pack.   Any suggestions other than giving up?

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