when i open the options pane in sketchup to export as a dxf file, it shows that my object size is 30 inches by 17 inches. But the actual size of the part is 6 inches by roughly 7 inches. Why is SU showing the wrong dims?
second, if anyone has lightburn, when i import the dxf file, its super small and scaling does not work because it imports it with very odd numbers of 0.439 by 0.29 inches.
First thing I see when I open your file is that the Camera is set to Perspective. You need to set it to Parallel Projection and the standard Top view. Also use Zoom Extents to get the model to fill the model space as much as possible. It’ll also help if you adjust the model window to fit more closely with the model. Try that and see what you get.
as for SU, it still gives very large dims in the export options. It seems like its grabbing the camera view rather than the actual size of the object. IE, the width is 30ish which would match from the left toolbox to the right pane window. SO its grabbing camera space rather than just the object dims.