I recommend printing in fuzzy skin mode for the surface to have a good grip.
Mounting:
The hangboard has four 5mm diameter screw holes, they are spaced apart 60mm horizonatall, and 90 mm vertically.
I replaced an area of dry wall with 5/8 inches plywood, then I screw the hangboards directly into the plywood. I weight 80 kg / 176 lbs, and so far the hangboards supports my weight soundly.
Disclaimer:
Depending on the material of your filament, the structural stability of the wall, your body weight and other variables, thie hangboard might fail. Use your best judgement and be careful.