The bottom hole for the SBT90.2 is 10x11mm, so make sure you place it correctly.
PLA not recommended due to 50°C heat deflection temp, starts softening.
I use ASA for 100°C HDT, but PETG should be fine for 70°C HDT.
Use white colour filament.
0.08 - 0.1mm layer height
No supports required
Note: make sure the wires are soldered on their pads correctly. I have noticed some units arriving with the wire too close to the emitter preventing the gasket to sit correctly.
The author marked this model as their own original creation.