Originally Posted by
BNE
Goodsteel, I have been off the site for a few days and boy have you stirred it up! Good data. I have a question about post #1. You said....
"Every time, with startling consistency, the last cavity filled was producing the most consistent boolits. In other words, the cup that weighed the most, was always directly related to the cavity that was last filled."
Would it be possible that the difference you are seeing is due to mold expansion? My thinking is the mold is heating up as the alloy is filling the adjacent cavities.....The longer the boolit, the more effect this would have. Fixture expansion plays a big role in my line of work. We have to calculate its effect depending on what temp we braze at. A few tenths could make a difference.
Actually, What material is the mold made from? I could calculate the expansion and tell you how the volume would change...