Summer 1988
Fine Tolerances On Thick Substrates
The demand for ever increasing finer tolerances is well known to the photo machinist, resulting in a constant refining of our manufacturing techniques. For the purpose of this paper, a fine tolerance is when a dimension is called for which is considerably less than half the thickness of the substrate involved, and a thick substrate is one which has an overall thickness of the order of 0.030 to 0.080 inches.
Fine Tolerances On Thick Substrates
The demand for ever increasing finer tolerances is well known to the photo machinist, resulting in a constant refining of our manufacturing techniques. For the purpose of this paper, a fine tolerance is when a dimension is called for which is considerably less than half the thickness of the substrate involved, and a thick substrate is one which has an overall thickness of the order of 0.030 to 0.080 inches.
