DDM -
my System2 is made of 80/20 1530 (1.5x3.0 in). The (theoretical) working area is 40 inches x 28 inches, with 10 inches z. I say theoretical as my thk rails are still not (yet) long enough to max out that space except for the z. BUT - I have not noted any deflection worth worring about. Maybe I need to make some more bits and pieces - but busy on other "chores" now too.
:cheers: Jim
Experience is the BEST Teacher. Is that why it usually arrives in a shower of sparks, flash of light, loud bang, a cloud of smoke, AND -- a BILL to pay? You usually get it -- just after you need it.