Dewalt screen speed control

This topic contains 4 replies, has 3 voices, and was last updated by  Leo69 1 year, 7 months ago.

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  • #9119

    tmelvin
    Participant

    Has anyone ever seen this http://www.openbuilds.com/threads/router-speed-controller.749/
    Basically it’s running a router like we use off of a variable dc power supply, they say it makes it run cooler and quieter.
    I don’t know a whole lot about ax/dc power for motors, so if anyone has any advise before I build one I’m all ears

    #9140

    Ryan
    Keymaster

    A few of us use something very similar to what is linked at the end of that thread.

    #9146

    Leo69
    Participant

    Yup.got mine At hf. Been running for a couple years now

    #9148

    tmelvin
    Participant

    Is the harbor freight one putting out Ac or dc voltage? If the diagram is the same as the router speed control they link to I would just buy one.
    Also is there much difference between the Frankin speed control and the harbor freight one?

    #9163

    Leo69
    Participant

    I’m not positive but pretty sure the hf speed control uses a triac circuit with a variable resistor to control the chopping frequency. A triac is two rectifiers back to back so it would function kind of like an adjustable version of what’s described in the link.the hf version is a better implementation though and just as cheap as building yourself, especially if you have a 20% off coupon

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