I am trying to cut a design out of some 2-3 oz. leather, non-Proofgrade (roughly Proofgrade Medium Leather equivalent). Every time I go to cut it, I get a material thickness error where the machine/software thinks something is out of the focusing range of the beam, and it auto-cancels the print.
The leather is, of course, on top of the honeycomb tray. I have it held to the bed of the tray with some of those handy, dandy honeycomb pins that another user shared, so it isn’t curling up towards the laser head and causing problems there. I tried manual setting a focus location to ensure that it isn’t focusing off of the leather. I even added some green masking tape and told it to focus on that location. Red focusing dot appears on the tape, but the same problem still persists. Is this potentially related to the thin materials problem that appears to have happened several months ago? (I would figure that would be fixed in general by now, but who knows, maybe I’m a weird outlier.)
EDIT, 10/10/2020 (Hey, cool looking numbers for today’s date!): Just attempted to print with a piece of Medium ProofGrade Leather, same result as before. This, unfortunately, confirms that the error has nothing to do with ProofGrade vs. Non-ProofGrade, and instead is likely a firmware/software issue. This particular piece of Medium ProofGrade Leather had been successfully cut on my machine before, so an update between then and now has unfortunately broken some functionality. That information coupled with being able to cut some 1/8th inch acrylic is what leads me to believe that there is some error in the firmware/software side of things, and not with the machine or the material.
Same EDIT, EDIT: While writing this post, I tried set focus on a few different locations. Anything below the halfway mark doesn’t seem to allow the print to proceed, providing the “Material thickness” error. Also, set focus near outer corners of the material seems to cause the issue as well. Given that this is leather and there are ever so slight variations in the thickness throughout a piece no matter what a supplier tries, I would surmise that certain sections are just thin enough that they don’t pass the threshold for whatever is causing this error, while other sections are a couple thousands of an inch thicker, allowing the print to continue.
I will be attempting to cut the non-ProofGrade material this morning and add the results of that attempt in a reply to this thread.