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Crazy PETG stringing on mini  

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ConfusedChicken
(@confusedchicken)
New Member
Crazy PETG stringing on mini

I recently got my Mini around a few weeks ago and have been mostly printing in PLA with some very very slight stringing but, once I tried PETg, the stringing is now quite crazy with Pruusament PETg and the default slicer profile. I suspect it's the humidity because where I live, humidity is around 80% year round. Would it make sense to get something like a filament dryer/container?


 

Posted : 14/09/2020 11:18 am
ConfusedChicken
(@confusedchicken)
New Member
Topic starter answered:
RE: Crazy PETG stringing on mini

Here is another angle. Any help would be appreciated, thanks!

Posted : 14/09/2020 1:01 pm
mark
 mark
(@mark-3)
Estimable Member
RE: Crazy PETG stringing on mini

Yes, drying should help tremendously. I made one of these:

https://letsprint3d.net/how-to-make-a-filament-dryer/

They added 3D printed spool chambers to a cheap dehydrator. They have two stl files, one for large printers that won't fit on the mini, and one that is 1/6 of the part. I made one that is 1/3 of the part and just fits on the mini if you rotate it. It is more stable. The clips don't work well. I taped the pieces together with silver HVAC tape.

Regards,

Mark

Posted : 14/09/2020 2:31 pm
mark
 mark
(@mark-3)
Estimable Member
RE: Crazy PETG stringing on mini

You can get the files from my site:

https://sites.google.com/view/newbieprusaminireview/home

At the bottom, get the v2segment73mmx2.stl to print, or v2segment73mmx2.scad if you want to make more changes in OpenSCAD.

Regards,

Mark

Posted : 14/09/2020 2:40 pm
bobc liked
ConfusedChicken
(@confusedchicken)
New Member
Topic starter answered:
RE: Crazy PETG stringing on mini

Hi, thanks so much for the tip, just curious, what is your opinion on the esun filament storage box and dryer?

Thanks!

 

Posted : 14/09/2020 2:54 pm
mark
 mark
(@mark-3)
Estimable Member
RE: Crazy PETG stringing on mini

I haven't looked at it. It does look like a good idea, especially if it is 80% humidity where you are. I pretty much am drying two spools at a time though and they stay dry for a day or so after being in the dryer for a few hours. So, I am not drying while printing. It might be worse where you are, but I suggest you have the ability to dry two at a time, the one you are using and the one to use next. Otherwise you will be waiting half a day or more for the next spool to dry.

Regards,

Mark

Posted : 14/09/2020 3:06 pm
obv
 obv
(@obv)
Active Member
RE: Crazy PETG stringing on mini
Posted by: @mark-7

You can get the files from my site:

https://sites.google.com/view/newbieprusaminireview/home

At the bottom, get the v2segment73mmx2.stl to print, or v2segment73mmx2.scad if you want to make more changes in OpenSCAD.

Regards,

Mark

Thanks for this! I just ordered the dehydrator and will build one this weekend. What material did you print the walls out of?

Posted : 08/01/2021 6:22 pm
mark
 mark
(@mark-3)
Estimable Member
RE: Crazy PETG stringing on mini

@obv

I used ASA, but it requires a full height skirt and an enclosure to keep it from warping and pulling off the bed. I think you could use PETG.

Regards,

Mark

Posted : 08/01/2021 7:16 pm
obv
 obv
(@obv)
Active Member
RE: Crazy PETG stringing on mini

@mark-7

Tried printing this with PETG but noticed there was an issue with your .stl file. Do you see the same thing in prusa slicer?

 

Posted : 10/01/2021 7:09 pm
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