“Always do the math on paper first before ever dropping any pins into a cylinder!” using incidental masters to your advantage, key division, positional master keying, vert ical master keying, expansion specifications, manufacturer speci f ics , master ring particulars, selective masters, multiplex keyways and dealing with unplanned contingencies. But, don’t stop now! Continue on and better your understanding of this complex and fascinating field. A heartfelt ‘thank you’ is extended to Figure 22. The locksmith who created this chart didn’t double check that each chamber added up to 23; chamber #7 does not add up to 23, but rather 24. There are many tech manuals and manufacturer booklets that cover the complete process of combinating, es- pecially for the specific product you’re working with. These tech manuals can oſten be obtained on the manufacturers’ websites. A good source is the LSA associ- ation’s website: https://www.lsamichigan. org/tech_manuals.html. Numerous lock- smiths nationwide use this free resource for many of their lock and key needs. Your Design Experience Has Now Concluded! We have now come to the end of our four- installment series on master keying de- sign. This was only a basic how-to that 46 KEYNOTES NOVEMBER 2017 you can supplement with many of the excellent books on the subject by experts such as Billy Edwards, Jerome Andrews, Don O’Shall and others. Hands-on class- es are offered by ALOA, ILA and various local associations such as LSA, GPLA and others. Master keying soſtware should now make more sense to you and can be used as an aid to creating, supporting and modifying master key systems that you may be servicing. We haven’t even touched on the more advanced concepts that I teach in advanced master keying classes, including keying conferences with the client, the TMK register, record keeping, limited position progression, Billy B. Edwards, CML, Jerome V. An- drews, CML, and John Hubel, CML, ICML, M.Ed, for their assistance in pre- paring for this series on master keying. illiam M. Lynk, CML, PS, ICML, M.Ed., has een a locksmith since 75 and is the owner of ww.ICLSglobal.com. Bill is an IC specialist , an industry author, the subject mat ter exper t on IC for ALOA, and an ALOA ACE instructor, teaching classes on in- terchangeable cores and master keying across the country. He has originated SFIC Technical Manuals for both national and international lock manufacturers, and maintains a working relationship with the major lock and security manu- facturers throughout the world. In 2013 and 2015, he was named Keynotes Author of the Year. WWW.ALOA.ORG
