Right that's exactly what I've done. I had a look at Sheldon browns page and I don't have the bits he used to measure the rim. Is there a standard spoke bed thickness measurement I can use or are the spoke length tolerances too small to risk that?
Get two spokes you know the length of with ideally the nipples you'll be using, spokes through opposite holes on the rim, nipples threaded to right place, measure gap between spoke elbows with Verniers, add gap to 2x spoke length.
Right that's exactly what I've done. I had a look at Sheldon browns page and I don't have the bits he used to measure the rim. Is there a standard spoke bed thickness measurement I can use or are the spoke length tolerances too small to risk that?