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Metal coatings ? Can you give us more information please ?
tsagos replied to topic:
I print @ 255 a few days now. No problem with stock heater.
Check filament diameter. I had a case with cheap fillament that it was too fat (over 3.1mm) for the bowden tube. Too much friction and it the feeder could not feed the nozzle with material.Also if your coil is too tight you will have same results.Get some 30-28 gauge needles to unclog...
Print one feeder (robert's design), just in case, and a fun duct I used Valcrow design. Only the feeder is must have IMHO.
Check netfabb basic, you can cut your stl in to many parts very easy.
I didn't like the default settings. They never worked for me.Its really worring that you get grinding with a temp of 260c. try to setup the extruder motor so it doesnt apply so much force onto the fillament.Up your print bed to 100-103c to get better adhesion. I'm allways using A...
HelloGive us some details about temps, speed, layers etc. Temp is related with the grinding you are getting. Bigger temp means easier flow so the feeder motor doesn't require so much force to push the fillament.
Can you post a picture before the sanding?