Quote Originally Posted by silyavski View Post
Why don't you use steel profile gantry? Or at least steel profile and aluminum profile mix if you insist on using aluminum profile? Profile is much stronger than plate. It would be good idea to check your design with the calculator posted in the sticky area of the forum. Personaly i dislike plate sides of gantry if they are not double, imitating profile.
I was thinking I might add a 12mm plate to the flat back side of the gantry to tie it all together. I know some designs have double gantry sides but I'm conscious of the gantry weight and also feel the depth of the gantry cross members will prevent any flexing of the sides. But I may be wrong !

Thanks for your comments