Engraving name slanted when in filled mode.

Gentlemen, I’m having an issue. I’m using the Sculpfun S9 with a rotary module. When I engrave a name using only lines (outline), the text comes out normal. However, when I use the same name with the fill option, the letters come out slanted, as if they were in an italic font. I’ve already installed the machine’s original firmware, but it didn’t help.

Make sure to obey the tips mentioned here:

Especially always scan along the object, never along the rotating axis.