Hidden screw knob (Could be used as the holder for roller blinds or just to hang things on the wall)

thingiverse

Hey there, I used this part as a replacement for the "down-holder"-knobs of the blinds in my caravan. But of course it could be used for many other things. In my case I did not want to glue them on and I did not want to see any screws, so therefore the hidden screw feature. I printed this with PETG and could directly screw this together without any postprocessing. It feels quite sturdy. Be aware that my layer height of 0.06mm might be helpful/necessary. I did not test it with lower Z-resolution! Hope it comes in handy for you :)