Re: GME's New 80/20 CNC Build - My Design
Gary I think cutting your plates on the machine is an excellent way to go and you can also drill. When my machine was almost done and before I had the spoil board I had a job come that had to be done. I just C Clamped a piece of MDF to the table cross braces and got it done.
In fact you could use a hunk of scrap plywood to do a prototype before your metal arrives.
My gussets, the triangle shape helps add strength to the corner as well as holding the metal together. Mine is 8x5 inches on the sides and about 6 inches from the corner to the center of the triangle.
Like Gerry I don't think your stepper motor noise is a deal breaker.
Retired Master Electrician, HVAC/R Commercial. FLA Saturn 2 4x4 CNC Router Mach4 Kimber 1911 45ACP