thank you for your reply. I tried different speeds and tightened the feeder tension screw. However, the infill of the print still doesn't always touches the perimeter (see image) The print in the image is printed with a temperature of 220 degrees, a speed of 30 mm/s and layer height of 150 microns.
Another thing I noticed is that the fillet on the bottom left is rounder than on the right, whereas the model is supposed to be symmetrical...
Recommended Posts
gr5 2,224
You are underextruding. Assuming there is nothing wrong with your machine there are 2 basic causes:
1) Feeder not tight enough. Try tightening the feeder tension screw quite a bit.
2) Printing too cold or too fast. Try printing at half your current speed to see if that helps. Here are suggested printing speeds/temps.
Here are my recommended top speeds for .2mm layers (twice as fast for .1mm layers) and .4mm nozzle (UM Original, UM2, UM3):
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.
Link to post
Share on other sites