Filament Shelf - 2020 Aluminum Extrusion loosely based on RepRack

Basically a remake of RepRack's Filament Shelf, but with 2020 Aluminum Extrusion.

Choose either the over shelf bracket (bracket can act as book end), or the under shelf bracket to give more room on the shelf, depending on preferred style.  Also, you can choose between the single reinforcement, or the full reinforcement, or none at all if you feel the bracket is enough.  The french cleat is done at a 45 degree angle and 20mm deep, so should be easy to use wood instead of the printed one, if desired.  

I printed it with PETG with 6 walls and 0.8 nozzle, but I'm sure that is overkill.   Use your best judgement and overkill is always preferred for a shelf.  

See original for BOM (screws), and use whatever length of 2020 aluminum extrusion you like. The reinforcement piece can take a m5 bolt on the bottom with a T-nut to help keep things from moving.  

Please make sure to screw into studs, as I'm uncertain how well drywall anchors will hold with too much filament.  

Most studs are 16" apart, so as per most shelving standards, you should do at least every other stud if filled with filament.  Even more so if you wish to add more weight on shelves.  Again, use your best judgement.  

I had a bunch of leftover 2020 aluminum extrusion, so I made use of it.   

After comparing it to the original, even though it is more expensive to build, it seems to give greater flexibility with the use of the extrusion instead of tubing.  Easier to add on shelving, labeling, or anything else you can attach to 2020 extrusion.  

I didn't care for the method the original author created the Fusion sketches, so i basically recreated it, using the same general concept, but a complete recreation.  There seemed to be a few extra pieces that I didn't feel was needed (top bar, tabs on bottom), so I removed them, and reinforced the bottom a little more (10mm, instead of 6mm).   I also had some mini rolls, so I added an optional middle hole for that.  

Then I decided to see what an under shelf bracket style would be like, using the same design.