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Topic: Filastruder Stall Protection Trouble Shooting

I use the 3D printed hopper that came with the filastruder information on my extruder.  Every time I fill this hopper with my PLA pellets problems arise.  After turning on the motor, the screw will run for maybe 30 seconds and then stop.  The red light on the stall protection comes on, and I'm not sure what this means.  I think that I set the CV and CC right, but i'm not sure how to adjust them further.  I believe that the pellets are getting jammed by the screw once entering the extruder barrel, and this jam causes the overload.  Is this a problem anyone has had before?

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Re: Filastruder Stall Protection Trouble Shooting

What is the stall protection board's current reading when the stall occurs? What temperature are you trying to extrude at? What specific type of PLA are you using? How have you dried the PLA?

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Re: Filastruder Stall Protection Trouble Shooting

The current reads right around 0.36 A the majority of time I try to extrude.  I am extruding PLA at 165 Celsius.  The PLA is 4043D. Yes the PLA was dried before extrusion.  I believe that the issue involves loading the extruder with pellets because once all the pellets have exited the hopper and are in the extruder barrel it runs smoothly.

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Re: Filastruder Stall Protection Trouble Shooting

At 0.36A, the stall protection board should not be limiting current. If that's the current reading when the stall occurs, I suspect th you have the limit set too low.

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Re: Filastruder Stall Protection Trouble Shooting

This might be a stupid question, but how do I change the limit on the machine?

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Re: Filastruder Stall Protection Trouble Shooting

Page 8 of the assembly instructions refers to setting the stall protection board.

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Re: Filastruder Stall Protection Trouble Shooting

Okay I followed those instructions.  The motor is still stalling but this time it is reading 1.6 Amps on the Stall Protection.  What might be causing this?

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Re: Filastruder Stall Protection Trouble Shooting

Possible causes of motor overload are improper assembly (thrust from extrusion pushing on the gearbox instead of the thrust bearing) or operating at too low a temperature for the material. The hex socket needs to be able to slide like in the attached video, if it can't slide because the auger is being driven into the gearbox, that will overload and possibly damage the gearmotor.

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IMG_2289.mov 2.07 mb, 16 downloads since 2017-06-22 

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