Jaegers 6" f/10 "GJD" OTA Construction - OTA Assembly (making spacer template - step 3)
 

Making of template for use in installing aluminum spacers - Step Three - 16 (Click to see an enlarged image.)

 
Step 3 --- At the end of each of the 60-degree lines, I drew a rectangle that will be cut away to expose only the area of the flint element's surface receiving the aluminum spacer tabs.