Sharpening Handbook

Calculators for the Sharpener

Web-based Calculators Knife Sharpening Angle Calculator - CB created this tool which can be used to calculate the settings you will need to use with the knife jigs for a given angle on a knife blade. Projection Calculator - use to calculate the projection needed on the knife jigs for a given angle on a knife blade. (If you care, the math behind this is documented in this link.) Fly Cutter Projection Calculator - use to calculate the projection needed for a given nose angle on a fly cutter for the Rose Engine lathe. Use with the fly cutter adapter for the SVD-185/186 jig.	Computer-based & Tablet-based Calculators KnifeGrinders - Designed to work with the Front Vertical Base they sell. TormekCalc² - JVH (from the Tormek forum) created this tool which is an Excel spreadsheet that offers exact calculations and many advanced functions related to knife or tool grinding. Polishing Angle Calc - This is a supplement to TormekCalc² that was published by Gilles on the Tormek forum.
Other Web-Based Calculators
Turning Formulas Calculator - use to convert RPM to SFM, IPR, etc. (and vice versa) Machinist's Calculators - use for the lathe, drill, and milling machine. I have found three variations, so you can use the one you prefer : Little Machine Shop's Machinist's Calculator (I like working with these guys, so I generally use this one.) I-logic Machinist's Calculator Theoretical Machinist's Calculator	Calculator Edge - Calculators for about everything Engineers' Edge has some useful tables and calculators. A few are listed below Brinell and Rockwell hardness conversion. Comparative Hardness Scales for Steel Table. Mechanical Design, Manufacturing, and Engineering Calculators and Equations - a WHOLE LOT of web-based calculators.

About this site Remember : The goal of sharpening is to produce sharp tools, and these tools can injure you if mishandled. Safety measures should be followed to protect yourself and those in your shop. Be sure to read and follow all instructions from the manufacturer, and and utilize proper safety equipment. Never consume alcohol or anything that could impair your judgement before sharpening tools, or using sharp tools. Comments can be sent via eMail to me at SharpeningHandbook@Gmail.com.