Help with print settings for ASA

[Bikeracer2020]

Hello, I am trying to print with ASA for the first time and having problems getting the desired result. I'm using

• Dynamism ASA 2.85mm
• Ultimaker 3 (I don't have any type of enclosure)
• Latest version of Cura Using the CURA preconfigured "FINE" settings
• With the following changes
• Print Temp - 250f
• Bed Temp - 80f
• Print Speed - 40mm/s
• Cooling - Off
• Infill - 100%
• Also using Magigoo original

• Here is what I am trying to printDesired Result.jpg
• Print is not flat, it's warped upwards.IMG_4901.jpg
• The structure at the back of the print is misalignedIMG_4902.jpg
• Please help suggest what I should change in my settings.

Try bed temp around 95C.
Drop your speed to 30-35. Slower is better.
Preheat chamber with bed for a good 30 mins before starting print.
On no account open doors until print has finished and everything is back to ambient temperature.
Don't know about infil but I've never gone above 25%