Voron 2.4/Trident Top Hat Roof Rack

A way to add 400mm 2020 extrusion over the top of your Voron 2.4/Trident Canopy/Top Hat in a way similar to a car roof rack. I wanted to add filament spools on rollers or a filament dryer on top of my Trident however the Canopy doesn't have any methods to keep building up that I could find. 

Print:

I printed in ABS with standard Voron settings. Anything stiff would work though as it shouldn't get hot.

BOM: per extrusion

2x M5x10

2x M5x16

2x M3x16

2x M3x25

4x M3x5x4 heat set inserts

4x M5 T nuts

400mm 2020 aluminum extrusion (for 350mm size. 350mm for 300, and 300mm for 250)