I have a tradrack and didn't like where the spools were before so I made this to sit atop my trident.
This uses two 8mm linear rods and can be as wide as you need it depending on length. 350mm long rods fits 4 spools nicely on top of a 300mm trident. I also have ptfe guides that slip onto the rods.
You need the following parts for a 4 spool mount.
16 - 608 bearings
2 - 350mm long 8mm linear rods(or 8mm leadscrews)
3 - 12mm M3 screws
3 - M3 t-nuts
12 - 4mm printed spacers
The author marked this model as their own original creation.