| Electronics > Projects, Designs, and Technical Stuff |
| NEMA 11 stepper motor, one phase down |
| (1/1) |
| gaoshenkoiie:
For my dual extruder I use NEMA 11 stepper motors, 0.67 Amp/phase. These light stepper motors can easy go down when powered with a higher current as specified. Per mistake I fired one up with 1.5 amp and immediately one phase was gone. When it happens you can conclude this by measuring the resistance from the 2 phases. (see motor spec) Both phases should be close to equal. Mine should be 6 ohm and measured 2.3 and 6 ohm. Good luck printing |
| thm_w:
Good to know. What were you using to control the current, a pot on the stepper driver board or was this with a serial command to set the limit? What was your supply voltage? Wonder if its difficult to use a single motor for a dual direct drive extruder. |
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