Crank Rod Holder Adjustable

I had damaged the wall holder from a roller shutter crank rod. I looked at the part and designed a version optimized for 3d printing.
The holder should be suitable for rods in diameter of 12 - 17mm and the wall distance is adjustable from 32 - 52mm in 4mm steps.

As material I have chosen PETG, with PLA I am not sure if this material would not break if used for a longer time.
One clamp and two clamp mounts are needed per unit.