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Thread: Recommends on DC gear-motor, that can output > 10ft/lbs

  1. Recommends on DC gear-motor, that can output > 10ft/lbs

    Hi, I'm looking for a DC gear motor that can output at least some decent torque, say 10 foot-pounds of torque. Preferably the "flywheel" would already be some sort of gear meshing to interface with other parts.

    Anyone have any recommendations on finding something like that? A supplier of motors or some piece that could be ripped out of something?

    Thanks!
    -= Its all about cams and kars =-
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  2. #2
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    Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    The DeWalt PowerDrive motor/gearboxes have been looking pretty interesting. About 400in-lb @ 450 RPM
    http://www.robotmarketplace.com/prod...TD-RCM515.html

    You'll need at least a 160A/channel motor controller...

    But since you "only" need 10ft-lbs, the little wiper motors are probably more what you're looking for: http://www.robotmarketplace.com/prod...-218-2001.html (make sure you get a left and right...) - best of all, you could get away in the 25A/channel motor controller arena unless you're going to be pushing them hard continuously.
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  3. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    One question about these gear motors - can the RPM's be controlled very easily? Like, say I want this thing to spin up/down, can I just vary the voltage I'm sending to it in order to change the RPMs?
    -= Its all about cams and kars =-
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    Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    Yes - but now you're getting into the realm of a motor controller. You're not going to just slap a pot on there unless you enjoy setting things on fire. Those gearmotors are, per-force, a high current drain application.
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  5. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    So, I'm trying to put this whole picture together.

    I've got 3 pieces:
    1) power supply
    2) motor controller (adjust motor RPM)
    3) motor

    I've got 1 out of the 3 pieces of the equation and that's the AME 218-series motor (http://www.robotmarketplace.com/prod...-218-1003.html)

    Any suggestions on where to find the power supply or motor controller? I would like an AC power supply, which I can just plug in and not worry about batteries.

    What about a motor controller?
    -= Its all about cams and kars =-
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    Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    One motor? Two? How many? (and if more than one, hopefully you got both left and right handed...)

    Independent control of more than one motor?

    Single channel motor control: http://www.trossenrobotics.com/store...or-driver.aspx

    Dual channel: http://www.trossenrobotics.com/store...or-driver.aspx

    These can be controlled with analog input (a pot) like you were asking for.

    Before answering the power supply question - I'd like to know how many and what you're doin' with 'em roughly. Just as a gauge of load.

    This is worth browsing: http://www.dimensionengineering.com/...e/atxguide.htm
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  7. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    I'm planning to hookup one motor only at this time. The AME-218 series pull 1.5 Amp w/ no load, and somewhere around 22 Amp at "stall" load.

    The idea is that this gear motor will power a little flywheel, which in turn powers an arm pumping back and forth. Increase speed on the flywheel and the speed of the armature moving increases. I'm expecting the physical "load" the armature will be moving will tax the motor at about 50%, no more.

    I'd like to be able to adjust the speed
    a) via a computer - some sort of computer control that says faster / slower
    and
    b) manually - via some sort of dial that I could adjust the speed myself

    Can this motor controller do that?

    http://www.trossenrobotics.com/store...or-driver.aspx



    Given this info, do you think the home-brew ATX power supply would work? I might be spending just as much as buying something off-the-shelf though, if you have another already put together solution in mind.

    Thanks!
    -= Its all about cams and kars =-
    http://www.mycamcar.com

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    Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    Honestly, that's one of the best motor controllers for the job - it fits all the requirements handily - and more.

    Big ATX supplies are pretty cheap these days BUT - that's still more amps than most can source off the 12v rail. They handle that in that article by buffering spikes with a gel cell battery. That said - if you're at 50% load 24/7, you're going to kill the supply.

    Something like this:
    http://www.bestrc.com/teamcheckpoint...ers/index.html - first device on the list - might just work out well for you. I couldn't find the one I last used, but the specs here just about dovetail. (I'm running late out the door, but wanted to get you a quick answer. Followup as needed)
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  9. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    Great. So sounds like

    1) the AME-218 series motor
    2) the motor controller: http://www.trossenrobotics.com/store...or-driver.aspx
    3) and the power supply: http://www.bestrc.com/teamcheckpoint...ers/index.html

    will be my final setup.

    One last question is how would you "program" the motor controller? Do you know if it's got a programming language? Or how do I tell that to go "faster/slower" using a computer program?

    That's awsome, thanks so much for helping me!
    -= Its all about cams and kars =-
    http://www.mycamcar.com

  10. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    What about this for a motor controller?

    http://www.trossenrobotics.com/Phidg...ontrol-HC.aspx

    Does Trossen sell the LV model, for single motor control? i couldn't find it, only could find it on the phidgets website:

    http://www.phidgets.com/products.php...roduct_id=1060
    -= Its all about cams and kars =-
    http://www.mycamcar.com

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