Filament shelf brackets

Made to hold 33.7mm mild steel tubing, I printed these in PLA+ and they are easily strong enough at 1 metre apart. I added adhesive to the back of the brackets as well as fixing with screws just for the added strength, purely a personal decision though. Print time on the A1 mini for one bracket is around 2 hours 45 mins with variable layer height selected. 3 hours 30 mins without.