Key Ratio

Farrell mfarrel2 at tampabay.rr.com
Tue Jul 18 18:08:17 MDT 2006


Key ratio values seem to be pretty slippery to me.

I measured KR on a key using the Overs linear method (he uses the top of the key at the front rail pin). KR = 0.54 with the Overs method.

I did the Stanwood thing and KR = 0.48.

Then I did a modified Stanwood procedure, but instead of lining the front of the key up with the little plastic stand used for that purpose, I rested the key at the center of the front rail key bushing on the stand (now the key front was sticking out well past the edge of the little plastic stand used for that purpose) - KR = 0.51 with that modification.

So which is right? Which is more useful? Which represents KR better?

Terry Farrell
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