Hi,

the element A is a benchtop cnc 400x1000x200. The element B is not a table. It is another CNC, 1000x1500x200. It is the same, just scale the gantry.

So A is strong enough even if you put it on a simple table/strong enough/ . There will be no compromise of stiffness. Same with B.

In other words just follow B design if you like it. It would weight 130kg if following the design. Look at this thread also: http://www.mycncuk.com/forums/router...ddy-cnc-2.html to see it in real life