Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5249688.
I liked the concept. I was previously using a small version on the top rail of my 3D printer. I now have an enclosure with pegboard, and made this remix to adapt the rail for mounting on pegboard.
I reused the peg design from another model, not perfect, but works well enough.
Printed with 3 perimeter walls, at 0.2mm, with 15% triangle infill. Minimal supports: Tree Everywhere 80 degree overhang. This results in the lip of the top rail being supported, rather than printing in mid-air. With the rack already tilted 34 degrees, no other supports are needed. I used PLA+.
I needed to lightly sand the pegs where the straight portion begins to curve (design flaw from the original).