This bed is designed to fit printers with a 256mm bed
I have printed this bed on my Bambu P1S in both PETG, and PLA+ without issue.
All parts should be printed with the flattest parts down, and supports turned on.
When completed, bed measures 270x206mm
The largest part is the sides at 238x52x105

If there are any questions, or you want to see more photos of a completed bed mounted, check out my social media pages.