Andrew, A good suggestion, (below) I will do it. Tom Droege At 03:07 PM 11/12/01 +0000, you wrote: >I presume the box is cylindrical and can go on with >any orientation? I suggest you mark it to allow reproducible >positions and take a few flats at different angles as >well as a series at fixed orientation. > >Andrew Bennett, Avondale Vineyard