I am modifying a breadboard part which has pins at exactly 0.1 inches apart. When looking at Inkscape with Grid on set to 0.1 inches, all the pins are exactly at the intersections. However, when I use add the completed part to a project, the pins line up perfectly in the X direction but are exactly 0.05 inches (1/2 a hole width) off in the Y axis.
Image taken from Fritzing … notice that the pin holes are NOT on the grid markers.
Has anyone seen anything like this before?