So, I'd like some input on a project I have underway. I am building a plasma cutter based on the ACRO design. The main goal is to be able to easily position the ACRO system on top of the plates I intend to cut, basically to have some added portability. I have modified the ACRO 1500x1500mm design as such: - Cut aluminum plates instead of acrylic. - Modified aluminum plates to use NEMA23 instead of NEMA17. - Modified feet to connect 20x40 extrusions instead of 20x20 for the X direction. - Openbuilds 250mm linear actuator as the plasma holder head. I have a couple linear rails I could use if necessary. So my first question is, do you think this is necessary or will the wheels based rails be sturdy enough? As a controller I am using TB6600 drivers with a chinese mach3 controller. For THC I am using an arduino based design from someone else and have adapted his circuit board to better fit my needs, adding some optical isolation between the plasma cutter and the controller with an feedback stabilizing optocoupler as well as input signal filtering and stabilization with an high pass and an opamp for more accurate readouts. I'd like some constructive criticism on what problems do you think I'll be facing, how to solve them and what limitations do you think my design will have. My main concern right now is will it be rigid enough? My initial thoughts were something like: - The torch just hovers over the material, there's not much force needed to move it, so the frame won't have much force applied to deflect and cause issues.
Yes, but at speed we're talking about quite the low speeds, I mean, nothing remotely comparable to something like a laser engraver. For instance the video below shows one working on a very thin plate, so that's as fast as it's gonna get:
