Spool rack for Ikea Räcka (top mounted)

Since I loved the Reprack system, I've designed a reprack-alike system for top down mounting. Since the distance between the rods is the same as in the original Reprack system, other accessoires are compatible. I used M5x20 bolts for the connection between the two parts. Just slide the 2 Ikea Räcka in and you're ready. I used ABS for printing, but other materials will also work.