Lego Stud tolerance benchmark
thingiverse
A test print for checking printer tolerances before designing a part that is supposed to lock with actual Lego bricks. The STL contains five columns of four studs each. The studs in the left column are sized 4.8mm in diameter (as they are supposed to be) and then each column is 0.1mm smaller. The columns are labeled with the number after the decimal point. On my Prusa i3 MK2s and sliced with Cura 4.8mm turns out to be working just fine. I've included the scad-file just in case someone needs different offsets.
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