Quote Originally Posted by JAZZCNC View Post
What far more important is the bearing spacing on the Y axis and the more(within reason) you have the better it will be, obviously this comes at the cost of cutting width so it's a balancing act and personally I won't go any less than 200mm with 300mm being better.
Dean - could you confirm this for me.
If Y supported rails are mounted to the top/bottom of the gantry - do you mean the height of the gantry itself ie, the distance between the rail mounting surfaces?
I think my design is at 175mm currently so may need to extend it.