I am normally in Linux, so I booted Windows to try this. I added hardware as "Other" and then sub category to "Other". I cancelled out of the connect printer. Next you have to add the printer tab on the right. Scroll down, you will have to add the bed size, print center and shape. All of these settings must match your printer, but you can get these settings from your other computer. You can adjust the Gcode manually however you want. I have to do this because I run Duet electronics instead of the Azteeg boards. I use gcode programming instead of Marlin.
@fernando-silva I will see what I can do. I need to do a little more testing with this. I know it looks odd that a moderator would be having any kind of issue with MatterControl. But I am currently both using and modifying MC on a daily basis and I hope to resolve bugs or make improvements before others encounter them.
Click on the three dots in the upper right corner next to the temperature reading and select "Show Printer" > "General" and look for "Serial Port". Unplug the printer, check if any COMs disappear, and plug the printer back in to see if any COMs show up. If your printer does show appear, select it, and click connect in the upper left corner.
@larsbrubaker If you can make multiple layers on the skirt as well, then you can make a wall up around the outside of the part. Other slicers also do this. This makes a higher heated air barrier around the outside of the part and also keeps parts from air drafts and warping.
Can you see the error in the GCode preview? If there is a line segment that is not in the direction that you expect that would be a bug in the model or possibly how it is slicing. But if there is nothing in the gcode view that is showing this error it is in the settings (probably speed).