Printed on a Replicator 2 using Makerware "standard" settings in PLA.
After winding my coil, it measured 24 ohms resistance. At 5Vdc, that equates to .208 amps. Measuring the operating temperature using an infrared temperature detector, the coil temperature was ambient (room temperature). Running the motor at higher voltages will result in higher currents and thus higher temperatures which could melt the spool structure. Mine runs fine at 3 to 6VDC, which results in a safe spool temperature for PLA.