Round Peg and Hole Fitment Test

A test print to help you figure out how much clearance you need for two printed parts to fit into each other.

The main peg is a cylinder with a radius of 5mm. The peg board has holes with radiuses of the following dimensions:

2.5mm
2.55mm
…
2.95mm
3.0mm

In my print, the 2.65mm gave the best generally usable fit, with 2.70 still acceptable.