Futon Leg Foot Insert

I scored a free rigid futon off the garbage. heck yeah I was taking that. its the solid ones with a fixed bottom fixed back that folds flat (not the frame with cushion type) anyway it has 4 metal legs and 2 were missing the plastic scuff feet inserts.

I thought HEY I have a 3d Printer now. I bet I can make em!

measured 3DS print. just 2 cylinders. for some reason it came out exactly 1mm smaller than I designed. I designed the insert for 73mm it printed 72mm. odd so I scaled it up 1mm and i