Quote Originally Posted by nurbs999 View Post
The 2mm hole has only 1.4mm, the 3mm hole ends up being 2.53mm. Only staring from 5mm the holes look fine. Can anyone tell me how to solve this issue?
There are a series of analysis and explanations on the hydraraptor blog : he investigated that in 2011. Some of the parameters can't be corrected as they are process induced (arc shrinkage) and others are not practical to correct (the cosPi/n correction) so the bottom line (for me !) was to set the diameter I wanted and re-drill after because the general conclusion is that the printed hole will always be smaller than the intended cylinder.