I am probably making another mpcnc for just aluminum sheet, carbon fiber, and plywood. My current mpcnc is best kept just a printer due to its size and location. What I am mostly wondering is what sort of tolerances to expect? I know aluminum is probably the hardest thing to cut. I will be planning to make the machine with (absolute tube length not usable space) an x of 36" and a y of around 28". I know that Z axis is pretty much the most important thing here, so I will keep it short at about 1" of usable space, just enough to cut through thick sheets. I will be using the dewalt spindle, printing my own printed pieces, and buying the electronics kit from here.
Does stainless steel really have that much rigidity benefit? I would think that with a build of this size, the plastic pieces probably give more flex then the conduit used, then again I never looked into it. The EMT I got from Home Depot for the printer seems kind of meh. I can’t tell if the zinc coming off is helping it get more smooth or creating flat spots that make it loose. If I were to go stainless, would it be best to buy it from a local metal supply then pick it up? Shipping the stuff is just ridiculous…
I don’t think I found a video of carbon fiber yet, maybe I just didn’t look hard enough. Would you say that it’s harder to cut than aluminum? After some research, all I know is the dust is terrible for you. Maybe I can create something in the future that will put the piece being cut in a thin pool of water? To aid in cooling and preventing airborne carbon.