View Full Version : dumb gear question

09-06-2011, 08:04 AM
hi all,
can anyone point me to the document i saw somewhere(and can`t seem to find now) that gives a formula for determining the diameter of the round discs and the distance center to center for making a form tool for gear cutting? i just want to make a gauge for checking hand ground form tools- specifically i`m making 14.5 PA, 20 DP, 32 tooth gear. where did i see that document??

09-06-2011, 11:03 AM
Does this help?


09-06-2011, 12:41 PM
that`s the one! thank you.