Requires:

1. Print: Two 3D printed wall brackets.
2. Buy: A 43 mm dowel. 
3. Buy: 8 screws for fastening the wall brackets.
4. Optional: 2 screws for fastening the dowel to the brackets in order to avoid rotation

Print settings:

In order to optimize for strength the following print settings are used. 

Be aware: I have not actually done any practical comparison testing validating that this produces a stronger result than other configurations 🥴. However, the parameters comes from googling around and seems to produce something that in the end is strong enough to support at least 100 kg without any problems.

Parameters:

1. Material: PETG
2. Fill density: 40% (or higher)
3. FIll pattern: Cubic
4. Solid infill every: 5 layers
5. No support needed

If you experience success or failure with any other combination, please share the results with me and I will update this description

Modifications

I have included the .f3d and .3mf files if you need to adjust the model for a different bar size