Excessive globbing at corner July 12, 2014 03:22PM |
Registered: 10 years ago Posts: 9 |
Re: Excessive globbing at corner July 14, 2014 09:52AM |
Registered: 9 years ago Posts: 156 |
Re: Excessive globbing at corner July 15, 2014 12:21AM |
Registered: 10 years ago Posts: 9 |
Quote
duranza
Your flow rate is too high. It looks like it's over extruding, too many steps per mm in the extruder calibration.
My E Steps Per MM is properly calibrated to feed the exact amount, and the Skeinforge knows I'm using 3.0mm filament. I tried changing the packing density, and here are my results:Quote
Extruder Calibration
The E steps per mm should be adjusted so that when commanded to extrude 100mm it actually
feeds 100mm. This is done by placing a mark (a piece of tape for instance) on the filament 120mm
above the extruder and telling it to feed 100mm at say 60mm/min. Then measure the distance to the
mark to work out how much it actually extruded. It depends on the diameter of the bolt hobbing and
how far the plastic is pressed into it, i.e. how soft it is and the spring tension. Harder plastics will
feed faster.
Multiply the E_STEPS_PER_MM in the firmware by 100 / actual extrusion and reload it.