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I had to look up what Ubuntu 20 is. I don't know of anyone using it here. There is only just a couple handfuls of people that answer questions. Most all of us members who have been on here for years, use design and cutting softwares compatible for our vinyl cutters. And most use Windows operating system.. I don't know of anyone using INK CUT. If this cutter was bought from US cutter, then it is only for Windows,(says that on the ad.) and cutting software came with it , for windows. Some people do get it to run on a Mac sometimes, but with Bootcamp and similar for a Mac. Your cutter is not a printer and does not set up like a printer. Nor is it plug and play. . It is a vinyl cutter/plotter. You must download the FTDI driver, run and install it. Then windows will assign it a com port. 1-4, Then you go into your cutting software set up ,choose your vinyl cutter , and choose the same com port number. They must match. Pretty easy, Most value cutters all set up the same way. What is the reason for using Ubuntu 20 and Inkcut. ? These are the only threads over many years that UBUNTU is ever mentioned and that was many years ago, maybe something there can help. https://forum.uscutter.com/index.php?/search/&q=Ubuntu 20

I just got an MH365, hooked it up by USB to my laptop running Ubuntu. It was automatically recognized and added as a printer. I started inkcut version 2.1.5, the current version for Ubuntu 20, which found the device, but didn't automatically select a driver. I selected US Cutter Refine MH-721, the one that seemed closest to MH-365. If I plot an image using inkcut or by sending the HPGL file directly to the printer device, the plotter draws (I have pen and paper in it for now) a somewhat recognizable path but I consistently get the same kind of corruption. See the image below, where I plotted the file twice. The HPGL file looks fine in an HPGL viewer. The HPGL file is also attached here. The errors seem to be of two kinds: a vertical segment followed by a horizontal segment get combined into one diagonal segment - see the left edge of the letter H, for example an x co-ordinate is drastically incorrect, usually at or near the x origin - see the triangular detours in the circle, for example What is going wrong? Thanks in advance, Mike P.S. Since it's a new machine I'm really trying to determine if it's a problem with the software/file or with the machine itself. I don't have a windows machine handy to try other plotting software or another plotter to test the HPGL on. If someone could run this HPGL file on their plotter, or send me a small HPGL file that is known to work on an MH365, that would be a big help. circle.inkcut.hpgl

I got an MH-365 to work with a direct USB connection to Linux and inkcut. On Ubuntu 20 it's plug and play at least in that the device is automatically added as a printer and you can send HPGL files to it using `lp`. But the plotter seems to lose some commands when a direct USB connection is used. I had to modify the HPGL output by inkcut a little bit to make it work. I have submitted a fix to the inkcut maintainer so that a future release may generate output that works. See https://github.com/inkcut/inkcut/issues/367. You can use the existing MH-721 "device driver" in inkcut with other MH models; the only difference is the width and you can set that manually (to 11 inches for MH-365) when you add the device.