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This is very common. The stepper motor can only push so hard - about 5kg of force. There can be many causes but seeing the incredible speed of that motor I'm guessing you are just printing too fast. The hotter the filament is, the less viscous it is. So at 190C the filament is more like toothpaste and at 240C PLA is more like honey.
Did you change to a smaller nozzle size recently? Did you change filaments recently (some PLA needs higher temperature)? Is it possible you are now printing ABS and before PLA?
Check all the printing speeds in cura - especially the infill speed (which should be zero):
Here are my recommended top speeds for .2mm layers (twice as fast for .1mm layers) and .4mm nozzle:
20mm/sec at 200C
30mm/sec at 210C
40mm/sec at 225C
50mm/sec at 240C
The printer can do double these speeds but with huge difficulty and usually with a loss in part quality due to underextrusion. Different colors print best at quite different temperatures and due to imperfect temp sensors, some printers print 10C cool so use these values as an initial starting guideline and if you are still underextruding try raising the temp. But don't go over 240C with PLA.
What is your: print speed, nozzle size, layer height, printing temperature? Material? I want to see if you are within expected printing speed range.
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gr5 2,224
This is very common. The stepper motor can only push so hard - about 5kg of force. There can be many causes but seeing the incredible speed of that motor I'm guessing you are just printing too fast. The hotter the filament is, the less viscous it is. So at 190C the filament is more like toothpaste and at 240C PLA is more like honey.
Did you change to a smaller nozzle size recently? Did you change filaments recently (some PLA needs higher temperature)? Is it possible you are now printing ABS and before PLA?
Check all the printing speeds in cura - especially the infill speed (which should be zero):
Here are my recommended top speeds for .2mm layers (twice as fast for .1mm layers) and .4mm nozzle:
20mm/sec at 200C
30mm/sec at 210C
40mm/sec at 225C
50mm/sec at 240C
The printer can do double these speeds but with huge difficulty and usually with a loss in part quality due to underextrusion. Different colors print best at quite different temperatures and due to imperfect temp sensors, some printers print 10C cool so use these values as an initial starting guideline and if you are still underextruding try raising the temp. But don't go over 240C with PLA.
What is your: print speed, nozzle size, layer height, printing temperature? Material? I want to see if you are within expected printing speed range.
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