Simplify3D User Forum

I am having printing problems. The inside of the model shown is getting a bit hairy. The green print was printed several years ago and is perfect. The white print is a recent print. I don’t think the printing process has been modified but I may be wrong there. I wouldn’t have thought the print head would venture far away from the printed model to produce the effect shown.

It's called "stringing", and it can be affected by lots of things. Here's the trouble-shooting guide on the subject:

https://www.simplify3d.com/resources/pr ... or-oozing/

I've had stringing problems with older filament, especially if it has absorbed moisture. Try drying the filament & see if that helps. Even different colors of the same material can act slightly different.

Thanks for the advice. The model on the right is now hairy free! I changed the retraction distance from 1mm to 2mm and checked the 'Avoid crossing outline for travel moments' box. All good now.