Quote Originally Posted by silyavski View Post
Nice. Looks great,

What size of the steel profile you decided on?
At the above plans i use 80X80X5 beam for the red table and also for grey frame except the 4 lower beams that will have contact with the bench. Those four beams are 100X100X4. I think that the triangular pieces will help to achieve triangulation and parallelism and also stiffness.
I agree with you that if avoid symmetry and mirroring that will help to reduce resonance. As for the beam size i think even 80X80 or 100X100 will not have much difference to the final result.
The t-slot profiles are aluminium profiles that are used for for clamping solar panels at the roofs. I design the profile from a piece that i had.
I will come back with the gantry design. I will use one motor for X axis with double ballscrews and i may use double nut (preloaded with a spring) for each side
I want you opinion about this option. What kind o f spring is suitable for this use and where can I find it. I also would like to know what would be a good distance between Y and Z axis profiled rails ( i will use 20mm profiled rails ). Also what will be a good distance between the carriages of X axis ( outer side of carriages )

So far thanks everybody for the help

Vagelis