Just to add to what Dave said two posts up.
I asked HomeshopCNC about torque curve on those 500 oz steppers and they said that they drop off dramaticaly after 400 rpm.
Depends on what rpm you are expecting at ipm you are aiming at.
My purpose tops out at about 300 rpm so they will suit my needs.
But your needs may require more rpm and may be better with say the 269 oz ones.
So look at the info and try to make a good decision. Bigger is not always better.
