Thanks Bart.? I think I got it now.? I try playing with the variations as you suggest to get a feel for the differet size-geometry relationships.
One other question, you mentioned the drawer knobs tend to heat up and are tough to cool.? I will be using air blast for cooling & quenching.? I removed the motor/fan from a vac from an old vacuum cleaner which seems to put out a pretty intense airflow out of a 1" X 2" opening.? Do you think this would?be sufficient to?handle the cooling need?? I hear of a lot of guys using brass bar stock in these gaps which I would think have similar heat issues.?
Dennis