Spool Holder Wall Bracket

Designed my own spool holder bracket for the wall, printet in Sunlu Orange PETG. The bracket with my print profile is very stable the distance depends on the lenght of the wooden bar. The cutout is 22mm mounting holes 5,5mm and the countersink is 10,5mm 29.01.23 some people asked for a center support i have added a middle bracket für long shelves