If you're planning to build a cut table for fabric for models (clothes, etc), and plan to use a CO2 fixed laser with beam redirectors, don't forget a decent air flow systems on the mirrors (preferably from the laser, filtered), and the same for the moving mirrors, and also a decent vacuum system (aspiration for the dust) on all the machine.
Dust and cotton residuals on the mirrors can interfer with the beam and cause problems ..... and, also, cotton dust in suspension in the air, over a certain level, acts as an explosive (yes, same as flour), and also if not this danger, cotton dust accumulate in some place is worse than a fuse, in certain conditions (enough a spark for start a slow combustion, that continue also in background or inside machine spaces)
BTW, do you want to build a system for small parts, or an industrial line ? (some industrial fabric cutting tables i've seen was 2 x 6 meters or more, cutting space)