Extruder not spinning properly?
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Hello,
I updated my firmware on my Vivedino Troodon Corexy 400x400x500 to the latest 3.4b6 and after sorting out most of the issues I went to print and everything was looking good except the extruder was making a noise and then started smoking after about 4 minutes. I shut it off immediately and have been adjusting the M906 and other relevant code and bought a new extruder since the old one seems seized. I did a test extrude with the new one and it just shakes and the gears don't spin? I'm not sure what to adjust in the config file. Please let me know what the issue is. Here is my Config file config (2).g
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@oscorp If it just shakes, the motor is not wire correctly to the stepper driver, assuming you didn't kill the driver with the smoking drive.
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@stephen6309 so I had bought a new motor completely and was trying last night to get it working and it was making a loud noise any time I tried to retract or extrude just like the previous one. Everything worked perfectly fine before the firmware updates I did so I’m sure it has something to do with the amps or something along those lines. I can take a video today if that helps
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videos are great for showing what is happening
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There is a video of me performing 1 10mm extrude and 1 10mm retract. This is with the brand new extruder motor and assembly. I had no issues whatsoever before updating my firmware. You can see it not really spinning and just sort of grinding
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@oscorp said in Extruder not spinning properly?:
started smoking after about 4 minutes
What part exactly was smoking?
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@phaedrux it was the pancake motor for the extruded assembly. So I ordered an entire new assembly with new motor and the new one is doing the same non spinning issue which means it must do with the firmware change. Maybe the motor is mapped wrong or the amps. I’m not sure
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Remap the extruder driver as another axis and see if it still has issues. I think you have damaged a driver.
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What specifically would I change in my config.g to change that?
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Driver mapping is done with M584
M584 X0 Y1 E3 Z6:5:8:7So you'd want to change one of the other axis, such as X to use driver 3 then connect the x motor to driver 3 and then test it's function. If it still has problems then driver 3 is damaged and it's not a firmware/config issue.
As for what happened to cause the damage, I'm not sure. I'm not familiar with the Troodon board at all.
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Here is the X-axis trying to home after being plugged into motor drive 3 on the mobo and being remapped in the config.g
Is that indicative of a blown drive motor on the mobo? -
It certainly doesn't seem to working.
Have you done a visual inspection of the driver chip? Does the chip get hot?
Do you have an unused spare driver?
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I don't. What exactly is it that I would need to replace on the mobo? Sorry I'm still new to working on 3-d printers.
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Well as this isn't an actual Duet product and I'm not really familiar with the Troodon boards I can't really venture to say what to replace. The board maker would be the better place to ask. Just speculating you might be able to replace the driver chip if you have that kind of hot air rework capability.
