I don't think age should come into it, more aptitude. I've answered a couple of queries from a guy on HMEM forum who was using the Atom 3D trial and this is what he was getting upto in less than two weeks – modelling parts, assembling them and producing 2D working drawings. BTW he is 86 and not used any 3D package before.

Edited By JasonB on 14/12/2022 13:58:08