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Lots of moves without retraction

Posted: Wed Jan 10, 2018 2:13 pm
by mbuc
Hey all, I'm new to this forum specifically so please let me know if I should post any more information.

I have retraction enabled and calibrated well on my machine. However, I get strange behavior out of Simplify3D that lends to stringing and oozing problems.

When printing a layer of greater complexity than a shape (e.g. internal perimeters) S3D has the printer jumping all over the place. I think it may have something to do with randomizing the layer seam, but that's not the only time this happens.

Basically during a print S3D will make several travel moves that seem unnecessary. But what's frustrating is that it doesn't retract at all - it just throws the nozzle across the print, leaving stringing as the nozzle oozes out a tiny bit. This is happening with all kinds of parts, both self-designed and retrieved from sites such as Thingiverse.

Is there a way to force S3D to retract whenever jumping positions? It might not seem like a big deal, but when printing with PETG the bit of ooze tends to catch on freshly laid lines (<3 seconds old) and drag infill apart.

Re: Lots of moves without retraction

Posted: Sat Jan 13, 2018 3:04 am
by rrdavis
On the Advanced tab, you can disable the "only retract when crossing open spaces" option. Then it will retract for every move. Also make sure that the minimum travel for retraction option is disabled.

If you need more help after those changes, you would probably meed to post some screenshots and your factory file showing what's still wrong

Re: Lots of moves without retraction

Posted: Thu Mar 14, 2019 2:20 pm
by manbehindthemadness
I am also having this problem, I will try with the "only retract when crossing open spaces" option disabled; However, looking at this image, it's pretty clear to see that at the least, the application isn't properly evaluating what is and is not an "open space"

https://slack-files.com/T04H3KP86-FGZAATKNW-2d8aff292e

Re: Lots of moves without retraction

Posted: Sat Mar 16, 2019 2:44 am
by JohnyWalter
Hi, I tried to turn off the “only clean when crossing open spaces” option, but the printer still doesn’t do what it needs. I got an order to print hoverboard models, for example: project42.com/blog/national-appeal-bri ... e-streets/. It is clear that the printer is doing the wrong thing. Can someone else have any tips?

Re: Lots of moves without retraction

Posted: Tue Mar 19, 2019 1:44 pm
by S3D-Jake
Our team is happy to look into any potential issues. Your factory files and screenshots would be really helpful with diagnosing any issues related to retractions and pathing.