Then I realised that there is one possible explanation for the increased height of the print. Surely, skipping steps on the Z axis would mean less movement and therefore a shorter model? I was leaning towards thinking that the only plausible answer was skipping motor steps due to a too low driver current (I haven't actually tested any of this yet), but I couldn't work out how that would make the object taller.
Now I'm almost double that age, and my little grey cells are undoubtedly dying off at an ever-increasing rate, but I don't think I have lost all my skills as a diagnostician yet (albeit, they are probably better at silicon-based hardware than carbon-based wetware these days) so it shouldn't be beyond me to solve this little mystery by applying some logic. ) and I remembered that when I was 30, I had an IQ of 157 (based on a postal Mensa application form - I didn't join). OK, well I've had a nice hot bath and laid there thinking for a while (which often helps, but not quite as much as the morning shower.
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