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Peeling base?

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Posted · Peeling base?



I am a primary school teacher using an ultimaker 2+. I have had this problem with a few student projects, seems to be projects with a large base area.


Just wondering if anyone can identify what the problem is and any tips to fix it!





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Posted · Peeling base?
5 hours ago, Framar said:

DAvebug, what material is this ?


Framer it is the ultimaker PLA.


7 hours ago, DidierKlein said:



It looks like a Raft, you can (and should) disable it in the adhesion section on Cura


The raft seemed to print perfectly but then when it started completing the actual print it did this.

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Posted · Peeling base?

If the bottom is flat, then as Didier Klein said, I would also print this on the bare glass. Without raft. This gives you a smoother bottom-surface too.


For better bonding to the glass, I use my "salt method" (see this page, and then scroll down a bit):



Other people use dilluted wood glue, hair spray, glue stick, glue stick + wiping with water, 3DLAC, etc. So, plenty of bonding methods that should not cause this sort of issues. I would suggest you try them and find one that suits your models, and that you like.


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