Good Day All.

I have a multi part question. I'm in the process of planning a steel rectangular tubing CNC Router and have a couple of questions regarding the weight that the Ball screws and linear Guides can Cary/move?
I'm using Nema34 motors and 25mm ball screws and linear guides for all axis.

The question is that I'm thinking of experimenting with backfilling the tubular structure with Epoxy Granite or similar product to give greater rigidity as well as vibration dampening but im worried that
the ball-screws and linear guides wont be able to handle the weight.

Has anybody got a rough idea about this or should I be fine ?? (running the Ball screws with nema34 motors?)

Thank you in advance

Kind regards
Marne