Summary

I used the 53mm spool adapter from user Kopytko to make hubs for the wheels of a spool racer coaster cart with empty filament spools used for the wheels.

I printed the spool adapter wheel hubs in Inland PLA at 0.2 layer height, 50% fill at 205c on my MP Select Mini printer.

Watch my video to see how it was made:
https://youtu.be/iVx4PuT3Pgk