Ikea Lack Spool Rack - the "LackRack"

Since i have a lack shelf over the place where i keep my 3D Printer and i really hate to add weight to the top of my printer (it increases wobbling), i decided to mod the shelf to add a spool rack feature.

Personally i think ikea should do one to sell in their shops.

You will need some extra hardware to complete the rack, in the form of:

2 x aluminium carabiner (or 3d printed, but they need to be strong) - https://www.aliexpress.com/item/4000291887932.html
1 x 600mm M6 threaded rod - https://www.aliexpress.com/item/33006809911.html
4 x 608zz ball bearings https://www.aliexpress.com/item/4000768898298.html
2 x pieces of strong thread (nylon camping rope is perfect) - https://www.aliexpress.com/item/32927694955.html
2 x big screws (i used M8x80mm) with loop on one end and a big nut on the other - https://www.aliexpress.com/item/32952289538.html
1 x hard cardboard roll, 50mm diameter, ~ 500mm lenght, mine was a leftover from some kitchen supplies.