This is a problem I am having. My squares are parallelograms and my circles are ovals. Isn’t this fixed by using the skew settings? How do you figure out how to set the skew to the right setting?
I don’t think MarlinFirmware has skew correction added in yet.
Prusa firmware does
- Just to verify… you’re not just measuring from the build plate edge, right? The build plate might just be crooked against the gantry.
- I would look at mechanical alignment of your printer before trying to do skew correction. Skew correction itself can introduce print flaws.
@Ryan_Carlyle no I am not measuring from the edge of the build plate. This is just an example of possible deviations in the squareness x and y axis. Looking for a good way to fix this.
As for fixing the mechanical alignment for this printer would be a serious pain. The way it is assembled makes this almost impossible. In case you are wondering, it’s a M3D micro.
Ryan Carlyle is correct. I’ve set up machine tools for a living in a past life. Your x and y are not perpendicular. You may be able to fix it in software, but fixing the alignment is a better option if at all possible.