Wednesday, November 28, 2007

Update on upgraded motor installation

After fixing the motor to Sherline, I notice that the max rapid with bipolar series configuration was around 30ipm only! After a quick rewire to half coil excitation, I was able to get over 50ipm with ease. The result just goes to show that spinning air is very different from actual load... frictions, vibrations, leadscrew efficiency, so on and on... Currently still running at 2A/phase @44V... Will re-set the driver for 3A/phase when I have the opportunity...

Photos below show my current setup and the motor tuning parameters...

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