Effect of Forces on Gantry Cross-Sections?

[Iwant1]

. . . If your just cutting wood,foam and bit of plastics then any of the designs shown here would be plenty strong enough.!! . . . For real meaningful Aluminium and steel work then all of them are not really up to it.!!

Don't fry your noddles trying to create the perfect flex free gantry for cutting woods etc because your just wasting braincells and time when it's not needed.!

Thanks for the comforting post Jazz. Since this thread started, I've been thinking I got my machine drawings all wrong, and thinking about it day and night. I'm building my machine for general use and for a multitude of materials. I definitely won't be cutting steel, but would like to know it could do the odd bit of aluminium such as the 'Aztec calender', lol.

Is there any chance we can see your machine's gantry or get a description, as I know you mostly work with aluminium.

Thanks