Fast print (2h) and only 144gr for the complete rack.

You just need 2 wooden sticks with a cross section of maximum 25mm / 1 inch.

Mine are 70cm / 27,55 inch in lenght.

If you dont like the honeycomb pattern, just change the infill or add top and bottom layers.

Holes are for M4 screws and tapered.

I recommend to use PLA-CF filament, but it should work fine with normal PLA as well.

If you are in doubt, just increase the number of walls or infill.

With a lenght of 70cm / 27,55 inch you can fit ~10 spools of filament. So its only 11kg / 24 lbs of weight.

But you can fit longer sticks without problems, the part itself, due to design, can carry a lot more weight.

I secured my sticks with doublesided tape.

If you're not using a 25mm / 0,984 inch stick, you have to rescale the "rack stopper"