Tip 10:
A bb file that looks fine in Inkscape scales too large when loaded in to Fritzing. I’ve hit this before but not known how to fix it, but today I found both the cause and a fix. The original file was done in Illustrator and is apparently 96dpi. Editing it in Inkscape .9.2.1 works fine, but when imported to Fritzing the scaling in breadboard view is too large. I think what is happening is that Ink recognizes the input file was 96dpi, and saves the output file as 96dpi. Fritzing expects Ink to use 90 dpi and uses that, thus the scale problem. The cure is relatively easy (now I have found it at least). Open the file in Inkscape, do an edit select all so you have selected the entire drawing, change the units in the tool bar to in. Now in xml editor edit the ver first node and set the height and width (which will be dimensionless and thus in px, whatever px is currently assumed to be and which causes the problem) to the value from the tool bar in inches with a trailing “in”. Now when you save the file Fritzing can and will calculate the dpi value from the height and width settings in inches. So simple, but so hard to find …
Peter