Hi Slixxor,

I am in Melb Aus. If I can assist you in any way.

You might not of seen this thread http://www.mycncuk.com/threads/4356-...upported-rails
The square tube will rhomboid with side load ( assuming gantry uprights are the top of the frame )
Three trucks are better than two trucks ( better load spread )
Regarding tool load what spindle are you using ..kW RPM etc ,, have you seen "CNC Cookbook"

Finally, Hey Ger, Very nice to see you here.

Paul