Finished. DIY CNC

[Doddy]

Handsome looking machine - and I'm interested in the design of the stand, particularly that you have horizontal members running on the floor surface. It's an area I've been pondering recently with ideas for my own router - the idea of having a ground-based solid beam on a solid floor must (says he, the non mechanically minded) provide more resistance to (making up words now) bending from forces transferred down from the bed? What I'm thinking, having played with the deflection calculators for box sections that you can find online is to mitigate the deflection on the main load carriers (the rails) into the vertical/diagonal braces then against the lower horizontal... but if that is unsupported then there will be some translation of this deflection into this lower beam. If the lower beam was on the deck (ergo with some support) is there any reduction in the deflection on the upper beam/rails? Or is this fanciful 2/3rds of cock-all?

Genuine, if somewhat rambling question before I order a couple of hundred quids worth of 50x50x5 box steel.