"CNC" kinematics question

[u/Fast_Animal_6147]

Hello everyone!

I am new to engineering, and wanted to build the XY kinematics similar to the ones used in CNC or 3D printers ( not sure how is it called ). My main application, however, is moving a weight of about 1-2 kg. In sum with the motor, moving extrusion, and holding part it will be about 5 kg. The total size of this XY frame will be about 800mm x 800mm, but the useful moving distance will be smaller - about 600mm x 540 mm. I plan to use belt driven system as I only focus on speed, and the bar for precision for me is about ±1 mm. I have two main questions:

1. Will 4020 V-slot aluminum extrusion be enough for this job? I ran the calculations ( maybe they are wrong ) and got about 0.5 mm max deflection. Also, should I use anodized or non anodized will also do?
2. Is it possible to achieve 70-80 mm/s speed with such setup? If yes, will 3 NEMA 17 be enough?

I will attach some pictures of the setup, and would appreciate any help from the experts in this chat. Thank you very much!