Warping, Ultimaker 2

[kallisti5]

Oh.. and in terms of my layers, everything is pretty spot on.

photo_2021-07-09_11-00-59.jpg

[Bikeracer2020]

I don't have an Ultimaker, but I am printing on a glass bed with a BCN enclosed printer and a coating of Magigoo on the bed.
Been printing ASA which I believe has similar warping tendencies.

Things that have helped me so far......

Good coating of Magigoo.
Let chamber preheat for a good fifteen minutes.
Put some Mickey Mouse ears on the STL so it has more area on the bed, make mine about 0.5mm thick if needed with the addition of a brim, and remove after.
Let everything cool back to room temp before any attempt to open the chamber door.

Last print was at 94 bed temp, 255 extruder temp and 30 mm speed and zero cooling. This had the least warping so far after I had reduced the speed from 35 mm and increased from 250 extruder temp.

Seems important to have bed temp below filament glass transition temp, but as high as possible to passively heat the chamber.

Next print will have the speed reduced to 25 mm and the battle goes on.....

I'm slicing with BCN Cura at the moment, if you think that my ASA profile would help I'll happily post it or email it.