Lanz Bullshit Forum » the best way to solve these two problems?

Hello,

I want to print something like a slide in the playground. There are two issues: 1. the thin inclined plane (0.2cm in thickness) is not always flat. I have two printings. One is acceptable but the other is bent. 2. At the front edge of the base of the triangle wedge (i.e. bottom front end of the slide in the analogy), curling occur. Could you please let me know the best way to solve these two problems? I have preheat the platform to 100c before printing.

Please help.

I didn't find the right solution from the internet.

References:
https://www.tiertime.com/forum/viewtopic.php?t=23450
HR System Example

Thank you.