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mathew.e
(@mathew-e)
New Member
Prints curling on the edges

Hello. I just built my i3 MK2, which is my first 3D printer. After multiple test prints, Many of them have come off of the bed, curling up on the corners. Here are some of the results:

http://imgur.com/ztlSFGX

http://imgur.com/93ETbex

http://imgur.com/2SvgKkk
Is it something to do with my first layer height? Slicer settings? The bed is clean, and I am using the default settings. The Marvin and Prusa logo that is printed well came off of the SD card. If there are any prints you would like me to try please let me know. Thank you.

Publié : 15/01/2017 7:12 pm
christophe.p
(@christophe-p)
Membre Moderator
Re: Prints curling on the edges

Hi Mathew,

since the Marvin is printing well, does other gcode from the sdcard print well with no curling ? If that's the case it's mostly one of the parameter used by your slicing that can explain that.

What bed temperature are you using ? With the winter and cold temperature, you can increase a bit his to go up to 60 °C to see if it help.

I'm like Jon Snow, I know nothing.

Publié : 15/01/2017 7:39 pm
mathew.e
(@mathew-e)
New Member
Topic starter answered:
Re: Prints curling on the edges

Hi Mathew,

since the Marvin is printing well, does other gcode from the sdcard print well with no curling ? If that's the case it's mostly one of the parameter used by your slicing that can explain that.

What bed temperature are you using ? With the winter and cold temperature, you can increase a bit his to go up to 60 °C to see if it help.

Yes. I literally just finished the Prusa logo from the SD card and it printed fine (3rd link in OP). Perhaps it's my environment. When i walked in this morning I noticed that it was much colder than the rest of the house. Ill try 60 degrees on the bed and see if that helps that pyramid that I printed earlier.

But why would the pre-sliced prints, which have a bed temp of 55, print fine, and other prints with the same temp of 55 will curl? The size of the Prusa logo and pyramid are fairly similar. I forgot to mention, I tried printing the marvin before, and it did not stick. I lowered my nozzle with Live Adjust Z, and it printed well. I tried to print an object of larger size with the same setting and got curling.

Perhaps it is still my first layer height? I am not too sure what a good first layer should look like.

Thank you.

Publié : 15/01/2017 7:42 pm
christophe.p
(@christophe-p)
Membre Moderator
Re: Prints curling on the edges

The thing I can think is that the prusa logo is pretty flat, so it does not have time to cool down too much, compared to your pyramid model.

I'm like Jon Snow, I know nothing.

Publié : 15/01/2017 7:51 pm
mathew.e
(@mathew-e)
New Member
Topic starter answered:
Re: Prints curling on the edges

I retried the pyramid with 60 degrees on the bed and it worked like a charm. Thanks! I don't plan to keep this printer in this environment, so when I move it to a more enclosed space, would you recommend setting the bed temperature back down to 55?

Publié : 15/01/2017 8:57 pm
mathew.e
(@mathew-e)
New Member
Topic starter answered:
Re: Prints curling on the edges

I got the prints working and sticking to the bed, however I am having another issue with quality. There seem to be imperfections with the layers as seen here: http://imgur.com/1YmksC6 . My first thought was that the belts weren't tight enough, as they felt a little loose. After tightening the belts and printing another one, the symptoms remain. Does anyone have any suggestions? Thanks.

Publié : 16/01/2017 1:49 am
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