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VladimirK

Retraction vs ABS cooling?

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Posted · Retraction vs ABS cooling?

I've tried to fix printing issue on small model that looks like that after printing

 IMG_20191230_015725.thumb.jpg.30b5ea24af3984c6ae193658c0a81618.jpg

- there mess on the borders of the wall. I tried almost everything retraction related but nothing helped.

Then I noticed that walls are wobbling under extruder due to they are still soft and then I tried to turn on fan at 20% (7500 RPM max, one fan on the left from model on picture). Also I increased temperature by 5C to compensate cooling for layer adhesion. As you can see

img_20191230_015642.thumb.jpg.e81bb095d9cca593ac5cd1ea8dfb72eb.jpg

left side of the walls are much better. There are many obvious issues including adhesion to raft of the bottom layer, but is it right way to do using fans for ABS (then I'm going to change to 2 fans) or is there some settings in Cura for these issues?

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Posted · Retraction vs ABS cooling?

Yes, it helps, even with greater models it's fine even with 80% fan speed. And less problems with models curving for me due to it's cooling fast instead of after many layers as one chunk.

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