Round base!? help A1 mini

Help pls
the base of the model becomes rounded after printing

only tall models get a rounded base
although at the beginning the base is printed as usual evenly
A1 mini
don’t throw tomatoes
i’m new to this

Add a Brim of 10 Lines…all tall prints should have a brim.
If 10 doesn’t work, try 15…or use glue stick & a brim.

thanks for the advice
i use glue
but could you please tell me why it shrinks so much?
and do you think it will be possible to correct this increase in the height of the first layer?

It’s hard to tell from your pic, but the model looks thin…it could be cooling too fast.
Can you take a pic of the model on the printer, how it was printed, so we can tell size…??

If your printing on the Gold PEI sheet, change Initial layer height to 0.3
This will help it stick to the plate better.

Capture

I can’t take a photo yet
but I’ll try your advice
thank you very much