I drew a diagram in Visio of the slots I want the CNC to mill into my work surface to mount some t-slot for workholding. I used Visio because I knew how to specify the exact size of the objects. I exported the drawing as an SVG and imported it into ESTLCAM, which asked me what the units of measure were. I said inches, since that was what it was in Visio. When the drawing opened in ESTLCAM, it was 511 inches long (not 30 like it was supposed to be)!
After figuring that out, I imported the SVG again and set the units to mm. This produced a drawing that was about 75% of actual size.
Any tips on how to create an actual-size drawing? I need the precision for milling out the t-slots.
I have Inkscape as well as Visio, if that helps.