Two days ago I started having this problem. It happened after I switched from hairspray (which caused bottom of parts to shrink) to lulzjuice, although it may not be related. I have great adhesion of the first solid layer to the bed. Starting with the second solid layer I get missed spots (with third as well). Then on partial infill I get strands lifting up. Then I have missed spots again on the top solid layers. The result can be seen in the pictures.
When this first happened (see picture with part labeled “0.35”) I had filament jam due to the hobbed bolt eating into the filament. I cleaned the hobbed bolt with the metal brush then reduced the pressure from the 2 idler screws. But it still continued to do that on other parts. (I really, really hate that part of the extruder and how it’s a PITA to put the idler back in place with the flat washers and springs!!!)
I’d be glad to get some pointers on how to solve this. I have to print 8 parts like the big one for a coworker (the smaller ones were puzzle joint tolerance tests) and I’m getting tired of working on this instead of on my own parts!
Some info that may be of use:
- Printing 3mm natural ABS
- I’m using 0.40 infill because I want to save plastic
- Apart from the infill I’m using the default Slic3r configuration file for 0.40mm layers.
- Humidity is rather high in my home, more than 65% RH at 68ºF.
Thanks in advance!