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| brushless dc motor conversion?? |
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| tonybraz:
Hi I use a brushless dc motor on my small cnc mill. I use a motor used in r/c models which has a speed controller with a servo tester to change speed. This is powered by a power supply from a computer.Have look at the picture |
| jim:
Thank you for the advice :thumbup: i've taken the motor apart this afternoon. the end (where the brushes run) was quite dirty, i've skimmed that up and cleaned up the brushes. Thanks John, that explains about the reverse speed :doh: The only reason that i found out it runs slower in reverse is that, the easiest way to run a pulley would have the motor running in reverse. more thought on my part is now required!! |
| modeldozer:
For info on brussless DC motor convertion have a look at this site, apart form the parts there is a bit of info aswell http://www.kelinginc.net/CNCmillingcontroller.html Usual disclamer. Abraham |
| jim:
after sleeping on the matter i now realise that if i flip the motor over i can run two pulleys! |
| spuddevans:
--- Quote from: jim on May 23, 2011, 02:22:19 AM ---after sleeping on the matter i now realise that if i flip the motor over i can run two pulleys! --- End quote --- if this is a dc motor you can reverse it very easily by just swapping over the 2 wires feeding power to the motor. (obviously leaving the earth intact) Are you sure that you need to reverse the direction off the motor? When I did my belt drive conversion I thought that my motor needed to be reversed, but it turned out that it didn't. Tim |
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