This talk will deal with the apparently ineradicable human tendency not to leave well enough alone. This is particularly true in the production of investment castings involving many steps all susceptible to be monkied with. The results are seldom good; in many cases they are deplorable. Since apparently minor changes can yield results out of all proportion to the shortcut taken there will often be no understanding as to the actual error committed. Strict adherence to proper procedures will be the advocated cure.

Author: Albert M. Schaler