Use a high temp filament to avoid your template melting or defroming
3mm minimum
If the wall thickness is too thin; the top thickness here was only 1mm and resulted in the top layer melting into the support structure with 3mm UHMW (2022). Here you can see there support structure showing through.
Top thickness (must be equal to or larger than 3mm) / Bottom can be 0mm
Infill 50% (recommended types =Gyroid or Tri-Hexagon**)**