Materials used in CNC build projects

[GeorgeD]

I've put the idea of using perspex to bed for the CNC build and opted for mild steel box section tubing, somewhere between 3mm and 4mm wall thickness.

Have purchased a mig welder,should arrive Monday? the thing that I now need t decide is to whether to have the gantry static or traverse?
Someone on here posted a link to a machine that was also done with box section mild steel and thats what swayed me to build it in this material,it wasso nice I wanted it. :)
Intentions of this build was to use as a router/carver and with future components changed for better quality this was the ideal material to use for heavyish work?

I won't be aquiring the box section for another week or so? but this will give me adequate time to get to know the Mig,had a go at arc welding in the past but that died a death due to me getting flashback at sometime during the usage of the arc welder,terrible thing to happen as its really very hurtful on the peepers for a day or two.

[florins]

...opted for mild steel box section tubing, somewhere between 3mm and 4mm wall thickness.

Fantastic George, steel is a much better way to go! Good luck in your project and keep us posted!

Florin