John,

either Joe and I are both going mad or something's weird ... your post definitely said:

The maths is 200 x 800 /5 so you want to set steps per to 320
but now it says the correct answer and doesnt show you edited it :confused::confused::confused:


btw, i agree the maths is easier expressed as s x m / p, but I was showing how to get to that from first principles in stages...

(my equivalent of 'give a man a sack of grain and you'll feed him for a month; give him some seeds and show him how to harvest, you'll feed him for ever')