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nicolas.s2
(@nicolas-s2)
New Member
Corner problems

Hi,

Reccently i bought a prusa i3 mk2s so i'm very new in this. I have a problem with the corners (in the attach img) when i try to print a small box. Is possible to avoid this?. I use cura to generate the .gcode.

Thanks!

Posted : 20/02/2018 3:29 pm
alexander.s27
(@alexander-s27)
Estimable Member
Re: Corner problems

My 1st thought would be that your retraction might be somewhat or seriously to high.
Or maybe do you have a negative restart distance?
I am fine with just 0.5mm and rather slow 20mm/sec for both pla and petg with my MK2S ( no multi material)
I use an olsson ruby, with usual brass nozzle you maybe want it to increase to 0.8 or such

Posted : 20/02/2018 6:02 pm
nicolas.s2
(@nicolas-s2)
New Member
Topic starter answered:
Re: Corner problems


My 1st thought would be that your retraction might be somewhat or seriously to high.
Or maybe do you have a negative restart distance?
I am fine with just 0.5mm and rather slow 20mm/sec for both pla and petg with my MK2S ( no multi material)
I use an olsson ruby, with usual brass nozzle you maybe want it to increase to 0.8 or such

mm i don't understand. Can you be more simply to explain?. I have the printer about 1 week.

Thanks

Posted : 20/02/2018 11:09 pm
Nikolai
(@nikolai)
Noble Member
Re: Corner problems

It must be a slicer error. Have you tried to print a benchy? Does it look good?

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram

Posted : 21/02/2018 12:52 am
AbeFM
(@abefm)
Member
Re: Corner problems

Ah, you're in luck, sort of. I had that EXACT issue on something I designed and printed on a POS Geeetech printer I had, waiting for my Mk3 to arrive.

POS it may be, but the machine has never done that to me with S3D.

In short, I suspect CURA. I have a thread over there you can post in if you're trying to get it looked at: https://community.ultimaker.com/topic/21531-blobs-and-underextrusions-in-gcode/

There's some weirdness in the slicing there, I think it's effectively under extrusion since it's maybe not extruding without doing a retract, the structure left behind looks like stringing on supports.

I maintain an informal list of San Diego, CA 3D printing enthusiasts. PM me for details. If you include a contact email and I can add you to the informal mailing list.

Posted : 02/03/2018 8:14 pm
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