Tolerances

[medicus]

I noticed that a lot of the parts don't have tolerances, i.e. hole for m3 screw is 3mm. Are the parts generally meant to be printed with an expansion factor?

[MirageC]

M3 screw holes are for most of them 3.2mm in diameter when no thread grabbing is required. Which one more specifically are you referring to?

[medicus]

I was looking at the Y-Cartridges. Seems most / all holes are 3mm or 5mm as well as the opening for the 2020 being 20mm.