Yes I'm aware that I could round it , and that the error for a single mm will be so small
it can't even be measured .
And even if it could be measured , there will be more error in my leadscrews then that .
But unlike the leadscrew error , the step error will repeat itself and accumulate for every unit of travel .
If I have 250mm of x-axis , that will be 0.25 step *250mm /2016 = 0.03mm .
And that can be measured , and for certain operations will be a problem .
Fi dowel pins .
Soi if there's a way around it I prefer to get the basics right .
I will make enough errors myself in operating it .
I don't need the machine to be wrong from the start
pat