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Topic: Nylon 645 Issue

Any suggestions on this jamming issue with Nylon 645? I had a similar issue with T-Glass in the beginning, but that was due to irregular shape. This 645 is a bit oval shaped, but nothing compared to section of T-Glass I had an issue with.

I've tried adjusting the layer height, extrusion width, print temperature, platform height, and print speed with no luck. I am able to feed through filament manually without an issue. I fed 100mm through while checking extruder multiplier without a problem. I have an E3D hotend so I don't suspect the filament is warming, but 645 filament is quite flexible.

Any suggestions?  neutral

http://i.imgur.com/oHryXqp.jpg

E3D-v4 Hotend, MK5 carriage with round plastic wire conduit , 3/16" tempered glass,  Well nut, SureStepr SD8825 1/32 Extruder Driver, PowerEdge 2650 500W PS, QU-BD heated bed, circuit board fan, hinged plexiglass enclosure with plastic tray top. Other than that mostly stock SD3

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Re: Nylon 645 Issue

I wonder if someone could do a mod with brass tube cut like a /\ to fit right near the cog and bearing, to prevent that.

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Re: Nylon 645 Issue

have you tried lowering the extrusion acceleration speed for the stepper?

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Re: Nylon 645 Issue

Slow down. I found that with nylon and tglase I am running almost half speed or i get jams like that.