This is a very basic spool height adapter i designed in Tinkercad out of neccessity. I had a 5kg spool by REAL Filament that had been damaged in transport and had a chunk out of the edge preventing smooth rolling. I had purchased https://www.aliexpress.com/item/1005003229383681.html to hopefully fix the problem, but the spool size was too large. Even with the bottom metallic piece removed the edge would still touch the floor preventing rolling of the spool.
This is a 1 piece print. The rectangles have a 5mm increased base over the main larger platform. This in combination with the raised center bulge of the original feet, and removing the metallic center piece piece gives the 5kg spool enough clearance for smooth rolloff.
The width of the rectangles is just wide enough for a friction fit! There's a few mm clearance length wise. Very basic but does the job
The author hasn't provided the model origin yet.