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Old 03-27-2006, 04:31 AM   #1
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Default Cobra Comm lathe motor voltage?

HI, I have a Cobra comm lathe which has an original Cobra slave motor on it (540 size).

What should the voltage be to the slave motor, is it standard 7.2v?

Thanks
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Old 03-27-2006, 06:36 AM   #2
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I use a sliver can 540 motor with 3.0 volts and get a super smooth shiny finish each time. I have practiced with a couple old coms and varied the voltage from 2-5 volts and found 3 to give the best cust. I have a lrp pulsar comp. so i can up and down the volts as i cut. I would try the same if you could.
I had a stock reedy 27 in the lathe at first and did not get the same good cuts out of it as the tamiya stock. The tamiya seems a much smoother running motor. Maybe the week magnets? I use a integy lathe with v guides and a cobra diamond bit. good luck
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Old 03-27-2006, 06:38 AM   #3
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7.2 is too fast....may chip the bit
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Old 03-27-2006, 07:27 AM   #4
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Just make a 3 cell pack or run it at around 3 volts like previously mentioned.
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Old 03-27-2006, 02:04 PM   #5
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with my ice i normally do 1.5 to 2.5 consistant volts on mine.
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