Quote Originally Posted by bigal999 View Post
Hi downloading fusion 360 today will post soon how I get on. Would a build in 10mm X 100mm steel be strong enough if I get stuck on cost of aluminium there are plenty of cheap stick welders about.
Albert
if you are going to go steel route then look for 4 or 5mm wall box section 50mm will work but 60 or 80mm better. Make the base from box section with rails sat on the top face of steel and make the gantry from profile, I suggest using the "L" shape layout of profile as it gives good strength(Just search the forum you'll see it used often). To raise the gantry use vertical pieces of profile that bolt into the lower piece of gantry profile.

This will be a simple weld up and easy to build.