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[machinist] Bevel-Angle Chart for knifemakers + trig calculations

From: Lawrence London <lfljvenaura@gmail.com>
To: machinist@lists.ibiblio.org
Subject: [machinist] Bevel-Angle Chart for knifemakers + trig calculations
Date: Mon, 10 Jul 2017 15:23:17 -0400

Bevel-Angle Chart for knifemakers + trig calculations
https://scontent.xx.fbcdn.net/v/t1.0-9/19884167_725036951015307_7481450409350495590_n.jpg?oh=097b60f074d3c0f76630fed2a61fb56b&oe=5A0E7DCA
https://scontent.xx.fbcdn.net/v/t31.0-0/p480x480/19787499_725036951015307_7481450409350495590_o.jpg?oh=ecc50979557e21ab14a4f0d6cd9d9e57&oe=5A0BC0B6

Inline image 1

bevel-angle-chart-knifemakers.jpg

The trig formula for the width of a one sided bevel on a piece of flat stock is "opposite over hypotenuse" or

cosecant. For a 1" one-sided bevel on a .125" thickness blank, the cosecant is 1.000" divided by 0.125" or 8. The angle

whose cosecant is 8 is 7.18° and half of that is 3.6°.

3.6 degrees per side gives a one inch bevel on each side.

--

Lawrence F. London, Jr.
lfljvenaura@gmail.com

https://sites.google.com/site/avantgeared

angle-bevel chart for knifemakers + trig calcs

[machinist] Bevel-Angle Chart for knifemakers + trig calculations, Lawrence London, 07/10/2017