608 bearing inner and outter sizing test fixtures

thingiverse

my 608 bearings measure 8mmID, 22mmOD, and 7.4mm thick. These are a couple testing parts. they are a print of an array of sized pegs (to test inner diameter) and cups (to test outer diameter. The reason for this is, when i print something that has a hole, i have noticed that if the hole is supposed to be "X"mm it comes out X-.2mm or so... by printing these i can measure which "# in the computer" represents a good fit in reality. My 8mm test post fit snugly, but to get the bearing to fit inside the cup, a 22mmOD bearing needs a 22.4mm hole. the print i made came out extremely rough, due to the speed at which i printed it, but it did what i needed it to do. Someone else printed it and used much finer print settings, and it came out "finish quality". the fuzzy edges on the bottom of the square base is due to peeling it up off the print bed(which i smear abs juice on to aid adhesion.