Hi,
Being in the process of building my second home made router and trying to size my stepper and drive for a 150 lbs gantry using 5 tpi ballscrews and llinear rail thk25.
According to gecko formula a 150bls gantry and a wanted speed of 200 ipm /531=56 watts should keep me in stepper territory...so far so good
The next formula is ...desired IPM xRPI / 60= RPS (revolution per sec)
in my case 200 x 5 / 60 =16.67 RPS
The following formula is...RPS x 200(steps) = PPS
in my case 16.67 x 200 =3334 pps
the statement about determining how much oz-in is needed to move and accelerate the load is not explained and they state
that PPS x oz-in / 4506 =watt needed , yet on their examples at the very end, they arrived at a value in oz-in
could someone clarify this ?