The smaller the machine the more rigid it will be, the faster you can push it. I recommend starting with a foot print of 24″ X 24″ Outer Dimensions with a 3-4″ usable height.
Is the 24 by 24 the max work area for cutting? Seems like no, but wanted to ask.
I want to be able to cut at least 1 feed by 2 feet . Or a bit larger say 20 inch by 28 inch material.
But I read on the site that you should not go over 36 without adding bracing. Is that 36 inches in overall rail length or cutting area? My guess is it relates to overall length but wanted to ask.
I am planning to use 1 inch OD stainless steel rails. Or maybe 1 in OD metal rails.
Does not seem like a big deal to add supports during the build so I might just do it.