Notifications
Clear all

[Solved] Uneven quality print over height  

  RSS
UnumDesignum
(@unumdesignum)
New Member
Uneven quality print over height

Hello,

I just start to experiment printing with a brand new SL1S, and I'm facing an issue I do not manage to solve.
The quality is not even over the printing cycle : first third it is bad, next third it is ok, and the remaining part is so-so.

It is not a calibration issue as the test models print well.
Same issue with Prusa Tough Orange and Anthracite grey.
Same issue whatever exposure time I set (from 1.6 to 2,4).
Same issue whatever orientation the model is (straight or inclined), with or without support.
I pre-head the resin, the FEP is new and clean, and the resin is fresh.

What is surprising is the the quality seems to be linked to the shape the model: the last part (that is no that good) starts exactly at the bottom of the "window" of the model...

If someone has any clue, I would really appreciate.

This is the model:

model

This is the print result:

print result 1

print result 2

Posted : 30/11/2022 11:18 pm
UnumDesignum
(@unumdesignum)
New Member
Topic starter answered:
RE: Uneven quality print over height

Ongoing gnosis... the issue was related to the SUCTION effect.

So adding a hole at the bottom or printing with the open side towards the bottom to avoid the suction effect, and the printing is fine !

Posted : 02/12/2022 2:25 pm
Share: