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Extruder will not work. Stepper Driver issue? Tested with Y axis and worked, but now not driving the Y motor.

Posted by XYZM

XYZM

Extruder will not work. Stepper Driver issue? Tested with Y axis and worked, but now not driving the Y motor.
August 13, 2015 11:20AM

Registered: 9 years ago
Posts: 77

SO

The problem is not the extruder motor but maybe my DRV8825 stepper driver. I am set to 1/16th.

Any Ideas?

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gmckee

Re: Extruder will not work. Stepper Driver issue? Tested with Y axis and worked, but now not driving the Y motor.
August 13, 2015 11:57AM

Registered: 9 years ago
Posts: 182

If whatever axis you plug the stepper into doesn't work it is most likely the driver or the tuning of it.

Prusa i3 Rework - Ramps 1.4 - E3d Lite6 - Full Graphic LCD Controller

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XYZM

Re: Extruder will not work. Stepper Driver issue? Tested with Y axis and worked, but now not driving the Y motor.
August 13, 2015 12:36PM

Registered: 9 years ago
Posts: 77

I exchanged the stepper driver board and still get the same, this time the voltage is set to 1.67 and I can feel the extruder motor humming. When I look at the gears inside they do not move, or maybe barely..

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XYZM

Re: Extruder will not work. Stepper Driver issue? Tested with Y axis and worked, but now not driving the Y motor.
August 13, 2015 12:42PM

Registered: 9 years ago
Posts: 77

This must be sort of normal maybe because I am controlling it through manual control. So I am limited by to short extrusions at a time.

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sarf2k4

Re: Extruder will not work. Stepper Driver issue? Tested with Y axis and worked, but now not driving the Y motor.
August 13, 2015 01:28PM

Registered: 9 years ago
Posts: 476

Did you heat up your hot end to be at least 170'c?

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Viper97

Re: Extruder will not work. Stepper Driver issue? Tested with Y axis and worked, but now not driving the Y motor.
August 13, 2015 01:53PM

Registered: 9 years ago
Posts: 131

Just a thought... maybe you've tightened the hobbed bolt down to tight.

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XYZM

Re: Extruder will not work. Stepper Driver issue? Tested with Y axis and worked, but now not driving the Y motor.
August 13, 2015 02:20PM

Registered: 9 years ago
Posts: 77

@sarf2k4

The hot end is heated to 220 Celsius, but I am not testing with filament, just trying to watch the gear move. Ill try loosening the hobbed bolt, or at least what I think is the hobbed bolt.