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  • treadmill motor controller delay

    I have just adapted, a treadmill motor to drill press, and have a problem with about a 4 second delay, from the time i turn it on , till it starts.. It is a old mc-30 controller.. Does anyone know how to correct this??

  • #2
    Patience

    <Sound of knee slapping laughter>

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    • #3
      The variable speed drill press at the school also has a delay when the speed is set very low, but it's only a little over a second. It's not as bad when the speed is set higher.

      Roger
      Any products mentioned in my posts have been endorsed by their manufacturer.

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      • #4
        If that is a treadmill controller, it sounds like the soft start they build into the controller. It is a safety feature to keep the motor from starting instantly while you are standing on the treadmill. There may be a way to override it but I have never heard of anyone doing it.
        Gene

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        • #5
          There is probably a surface mount pot on the board used to set the accel limit.Find it and you could probably tune it to your liking.
          I just need one more tool,just one!

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          • #6
            Lets view this as a carefully thought out addition you added to the circuit that allows you to turn on the machine and get your hand back to holding the piece to be drilled . . . at least that is what you say to friends when you show them your masterpiece.

            Planeman

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            • #7
              Have a schematic?

              Try looking on GE's site - They built the thing

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              • #8
                That's a really old model. Can you take a closeup of the board from directly overhead and post it?
                Free software for calculating bolt circles and similar: Click Here

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                • #9
                  I'm sure you're not holding the workpiece by hand as may have been suggested above...... on accounta it's a good way to get hurt...

                  A suggestion re: 4sec delay.... push the start button 4 seconds before you want to drill the hole. Just my attempt at humour!

                  But seriously I have a friend that lost a finger and effective use of 2 others from holding a workpiece in a drillpress! Tore the finger off tendons and all, pretty grim event and I am almost phobic watching people on a drillpress now.

                  Be safe guys.
                  al
                  I spent most of my money on women and booze, the rest I just wasted.

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                  • #10
                    Safety

                    Thanks for your concern, I have been a toolmaker for 35 years building progressive stamping dies. I just started a home shop to build minature engines.

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                    • #11
                      I'm sure if you posted a picture of the board someone here could may be able to help you fix that. I have a small bandsaw that I put a dc motor on and the potentiometer that controls motor rpm has to be turned down to 0 before it will start. Like was said this is a safety for the treadmill but maybe not needed for a machine tool. I never bothered to see if I could improve it, I just got used to it. Good luck.
                      Jonathan P.

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                      • #12
                        You can defeat it,

                        There is info somewhere, maybe the rec crafts metalworking site, on how to do it.
                        1601

                        Keep eye on ball.
                        Hashim Khan

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                        • #13
                          mc-30 controller

                          I found out that the delay is in the design of the mc-30 controller, so I decided to upgrade to a mc-60, which is a much better design and does not have the soft start, and will work fine with the exisiting dc choke.. Thanks to all for there comments !!

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                          • #14
                            Cure for treadmill motor turn-on delay

                            I bought a bunch of treadmill motors from Surplus Center that came with controllers that had to be turned down to zero before the motor could be re-started. I hacked the board to eliminate this feature. It has been running fine for many years. The hack involved severing some lands and bridging others. I have the photos of the board and the hacks somewhere. But it will only work if it's the same board. Can you post photos?

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                            • #15
                              I happen to like the soft start feature and have found a way to make it more user friendly.

                              With the controller I have that came with the motor, if I break the connection on the center lug (wiper connection) of the control pot the motor will come to a stop. Making the connection again will soft start the motor and it will come up to whatever speed the pot was set at.
                              Gene

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