(2020-02-17, 4:28)N. W. Perry Wrote: (Could something like that work for the axle hole height? Could an editor program be designed to re-calculate the positions of these primitives on the fly?)
You could edit connhole.dat in LDCad's shadow library.
But this will only work when the primitive is used non rotated/mirrored.
Also there are plenty of techic connection holes which are modeled without the use of a primitive.
So you would need to edit all those parts' shadow files too.