EAWF 0 Posted January 27, 2017 Has anyone worked out the mathematical relationship between a cutters jog settings and the X_Scale / Y_Scale settings? There has to be some kind of relationship, and it would be nice to know if the cutter could be calibrated to produce more accurate lengths and widths without having to guess. Thanks in advance for your expert and prompt response. Share this post Link to post Share on other sites
MZ SKEETER 4,708 Posted January 27, 2017 Many types of cutting software can calibrate the size for the cutter to cut very close to exact size....Signblazer does. Flexi does. You do not state which cutting software you are using. If I am understanding your question correctly.. Share this post Link to post Share on other sites
EAWF 0 Posted January 28, 2017 Actually, I was being intentionally unspecific about the software, because I want to understand what happens when the HPGL coordinates are fed into the machine, how does the machine convert those coordinates into the X/Y jogger and X/Y Scale numbers for controlling the stepper motors to move the cutter the required distances. However, since you asked, my complete setup is the PCut described above, a used Laptop running Linux Mint 18, Inkscape, and InkCut...all the latest versions. And while I understand that the PCut is considered by many to be a "hobby" cutter, the reality is that the servers, tensions, etc. are all in almost new condition, and I'd bet a dollar to a doughnut that once I understand the underlying ?_Space settings and how they relate to the X/Y coordinates of the machine, that setting the scale in Inkscape will be relatively simple and I can get accurate dimensional cuts out of the machine. The biggest issue is a lack of explanation by the manufacturers as to, for an example, what those X and Y Scale numbers represent, and what the XY jogger settings represent. As mentioned by someone else on this forum, the fact that the manufacturers chose to put a CM scale on the cutter is very confusing, or misdirecting and doesn't seem to be of much assistance in calibrating the cutter at all. Share this post Link to post Share on other sites
MZ SKEETER 4,708 Posted January 28, 2017 Nothing more than I can help you with then...good luck with your project... Share this post Link to post Share on other sites
darcshadow 1,626 Posted January 31, 2017 In the MH manual it specifies the number of steps per inch, 1000. I believe that is a pretty standard number for stepper motor cutters. I would expect that information is documented some place for the PCut but I don't know for sure. Share this post Link to post Share on other sites
signyouup 178 Posted January 31, 2017 Draw a 10"x10" square and then cut it. Measure it in the X direction and divide that number by 10. That is your "X scale" Measure it in the Y direction and divide that number by 10. That is your "Y scale" Some software will let your enter the size it's supposed to be and the size it actually cut and do the above math for you. Share this post Link to post Share on other sites
