# Retraction problem.  Ideas?

**URL:** <https://forum.lulzbot.com/t/retraction-problem-ideas/349>\
**Category:** LulzBot TAZ\
**Created:** [December 5, 2013, 1:22am UTC](https://forum.lulzbot.com/t/retraction-problem-ideas/349 "2013-12-05T01:22:46Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![Bob](https://avatars.discourse-cdn.com/v4/letter/b/ea666f/32.png) [@Bob](https://forum.lulzbot.com/u/Bob)\
**Post date:** [December 5, 2013, 1:22am UTC](https://forum.lulzbot.com/t/retraction-problem-ideas/349/1 "2013-12-05T01:22:46Z")

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I recently got a Taz 2, and I’m having a wonderful time with it. Most things I print are coming out great, but there’s one small issue that I’m hoping someone can with me with. The issue is with small models with lots of rapid retractions; the filament seems to slip further and further until it eventually backs all the way out of the print head. Here’s a prefect example of one that does it:

![](http://thingiverse-production.s3.amazonaws.com/renders/7e/7e/b0/23/ab/loom_c1_preview_featured.jpg)  
  
  
The base prints great, but the pins don’t print at all. After the first layer or two of the pins, the filament has backed all the way out.

If I turn retraction off, the problem goes away, but there is lots of stringing. I’ve tried 1.6mm and 1.0mm of retraction, and I suppose I could fix the problem by messing with the “extra length on restart” option in Slic3r, but that seems to be fixing the symptom and not addressing the root problem. I tried tightening the feed tension screws a bit (to about 8mm), but I don’t want to overdo anything. The hobbed bolt is clean, head temp stays at 230C, occasionally dipping to 229C (I’m printing ABS).

I have all of 4 days experience with 3D printing, and I’d love to hear from some of you more seasoned folks about what else I can try.

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