Originally Posted by
cny-bikeman
FB has a unique method, but I'll let him explain it when he hits this thread again.
The patented FB home dishing gauge
Parts list.
a table,
three matched soup cans, cups, or glasses,
a bunch or quarters, or other stackable discs.
Place the three cans in a triangle to make a tripod support for the rim. Place the wheel on the stand and stack up the quarters until they come up to the height of the locknut face (not the end of the axle). Invert the wheel and the other face should be the same height.