I did not understand what you are saying. I changed both the extruder and the hotend
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I did not understand what you are saying. I changed both the extruder and the hotend
Then probably I didn't understand. Sorry!
The turbine shows a bit of excess in blobs, might be caused by retractions being too long increasing the idle time where hot material waits on the nozzle. Try to calibrate your retraction distance to optimize the print results.
https://ultimaker.com/en/community/20403-umo-2-um2-hotend-retract-calibration
Of course, i print abs with an higher temperature, for much layer's adhesion.. this is the cause of retraction's problems
If i increase the retraction distance there are same problem of extrusion, because the printer do a lot of retraction in a little time
Of course, i print abs with an higher temperature, for much layer's adhesion.. this is the cause of retraction's problems
If i increase the retraction distance there are same problem of extrusion, because the printer do a lot of retraction in a little time
To remove the amount of retractions as a problem I moved to bondtech double drive gear, for me it never grinded a filament.
Edited by Guest
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neotko 1,417
Just changing the feeder with allow to extrude, but not to print perfect. 1.75 on a 2.85 hotend is a bad idea unless you just want to extrude plastic without precision. Works? Yeah, but the filament will suffer, possibly snap under hysteresis and flex so much that the filament will twist on itself.
Ofc, to print slow without any search for precision or quality. Yeah it can work.
Remember to do constant atomics on the nozzle since the back pressure of extruding a small filament on a large area will create constant deposition of burned material along time increasing the chances of clogs.
If you don't believe it. Just wait for the summer high ambient temps and watch how the filament twist on itself inside the larger bowden tube.
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