Tormek Community Forum

In the Shop => Knife Sharpening => Topic started by: VijayDoshi on April 24, 2026, 09:59:10 PM

Title: iOS app to calculate Tormek USB and Jig setup
Post by: VijayDoshi on April 24, 2026, 09:59:10 PM
Hello Sharpeners,

I've built an app that calculates USB height or knife projection for Tormek-style sharpeners. Dial in bevel angles, wheel size, and machine geometry for repeatable edges.

Currently it's only available on apple (iOS) but if it gets some adoption I'll add additional platforms.

Try it out and LMK if you have any questions.

Link to App Store for Perfect Edge Angle Finder (https://apps.apple.com/us/app/perfect-edge-angle-finder/id6763470845)

(https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4d/c8/02/4dc802b7-e371-8987-b4f6-f0e0846fbea3/IMG_0295.PNG/460x996bb.webp)(https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/78/d5/c1/78d5c1cf-8d17-29dd-c4e6-47d44444f9a6/IMG_0298.PNG/460x996bb.webp)



 








Title: Re: iOS app to calculate Tormek USB and Jig setup
Post by: VijayDoshi on April 24, 2026, 10:21:29 PM
Note, if you are in Europe, the link may not be active yet on the app store. There is a pending Digital Services Act review in progress.
Title: Re: iOS app to calculate Tormek USB and Jig setup
Post by: VijayDoshi on April 25, 2026, 12:59:49 AM
Special thanks to @cbwx34 for spotting an error in the calculation! It's fixed, and the update will be out soon!
Title: Re: iOS app to calculate Tormek USB and Jig setup
Post by: Dan on April 25, 2026, 01:16:51 AM
Quote from: VijayDoshi on Yesterday at 09:59:10 PMHello Sharpeners,

I've built an app that calculates USB height or knife projection for Tormek-style sharpeners. Dial in bevel angles, wheel size, and machine geometry for repeatable edges.

Currently it's only available on apple (iOS) but if it gets some adoption I'll add additional platforms.

Try it out and LMK if you have any questions.

Link to App Store for Perfect Edge Angle Finder (https://apps.apple.com/us/app/perfect-edge-angle-finder/id6763470845)

(https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4d/c8/02/4dc802b7-e371-8987-b4f6-f0e0846fbea3/IMG_0295.PNG/460x996bb.webp)

(https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/78/d5/c1/78d5c1cf-8d17-29dd-c4e6-47d44444f9a6/IMG_0298.PNG/460x996bb.webp)

Hello,
Very interesting.
Can I ask how it compares to (or how it differs from) Calcapp which I use?

For info, I do not have an iphone but use Calcapp on android which I find extremely useful and well thought out for knife sharpening and also chisel/plane sharpening.
One more question if you don't mind...
Why do you have a choice of grinding wheel setting as well as the current diameter setting? Not sure I understand??

Danny
Title: Re: iOS app to calculate Tormek USB and Jig setup
Post by: VijayDoshi on April 25, 2026, 05:31:09 AM
Quote
Quote from: Dan on Today at 01:16:51 AM
Quote from: VijayDoshi on Yesterday at 09:59:10 PMHello,
Very interesting.
Can I ask how it compares to (or how it differs from) Calcapp which I use?

For info, I do not have an iphone but use Calcapp on android which I find extremely useful and well thought out for knife sharpening and also chisel/plane sharpening.
One more question if you don't mind...
Why do you have a choice of grinding wheel setting as well as the current diameter setting? Not sure I understand??

Danny

Hi Danny,

I used to use KnifeGrinders App till it got pulled from the app store, I havent found an app on the Iphone app store for this. I've never used Calcapp, and I can't find it in the store so, I'm not sure how it works or how it compares.

The various wheels are for folks who want to have some presets or have multiple machines they work with each with a wheel of a different size, just to make it easy to switch.

-Vijay