Hi there! I've posted about this issue before, but it still wasn't resolved. I am using a Vevor 6040 CNC engraver and Mach 3 as my controller. I'm engraving 1/8" acrylic to create signs using 2d pockets in fusion 360 to engrave text, a qr code and basic graphics. Whats happening is that the machine is rolling around the corners no matter what the toolpath looks like in fusion 360 or mach 3. Last time, someone had suggested I turn off stock to leave, but that was not the fix, and I believe that I need it in order to not mill away too much of the qr code. I tried switching tools which didn't work. I also tried using the rest machining option to do the corners, which resulted in a nice visual to see where the machine is rounding the corners on the 2d pocket toolpath. I am posting the code using the standard grbl post processor included in the Fusion 360 library. I edit the max radius in the post processor settings too and nothing. I thought maybe that was it, but the visualization looks correct in MACH 3?? I don't necessarily want to manually edit the G-code because this is intended to be part of a lengthy but user friendly tutorial for non-cnc familiar people. I can't troubleshoot any other issues with the end result until I figure this out.
+ Another problem I am experiencing is the depth it cuts surpasses the -.25 mm bottom height.
Im using a 3mm 15 degree bit at 18000 rpm and 1905 feedrate. The machine is clearly able to create tighter corners , but its missing just about all of them and sometimes cutting deeper.
Here are photos of the toolpaths and test results . I will also attach the last version of the file used.
