Since calculators have now
diverged... figured I'd repost some of my iOS calculators, that I've made and used. They've been updated a bit... now you can either use the "USB to Wheel" measurement, or if you want to measure to the casing, FVB, etc., that is available in the app as "USB to Casing"... the calculators allow you to enter your own horizontal and vertical measurements, making it "less restricted". So, for example, it can be used if you build your own FVB, or use a different machine. (If you don't know what this means, stick to the "USB to Wheel"... then the h and v measurements are not relevant). Some suggested measurements are given in the app.
An Angle Calculator to set the USB height, that works in the Apple Numbers app...https://www.dropbox.com/s/o43tsfj1kwzemu9/USB%20Angle%20Calc-Universal%20%28Public1.1%29.numbers?dl=0(To install click "Direct Download" then "Copy to Numbers").
An Angle Calculator to set the USB height, that works in the GoCalc app...https://www.dropbox.com/s/d2hah4c1krrlvgv/GoCalc2in1Calculator.xml?dl=0(To install click "Download" save the file TO A SEPARATE COMPUTER or DEVICE, then follow the instructions in the GoCalc app to "Import Calculations"... do not "Restore Backup"). You can't (from what I can tell), download the file to the device that has the GoCalc app on it... it installs the calculators via WiFi. (This will actually install 2 calculators).
GoCalc app can be purchased thru the Apple Store (I have no affiliation)...
https://apps.apple.com/us/app/go-calc/id286287080Just be advised... they don't come with any instructions... up to you to figure out how to install and use them... properly.
Added 3/8/21Here's a link to an Excel Spreadsheet, that will import into Google Sheets...
https://www.dropbox.com/s/eci3vysc61by04h/Knife%20Angle%20Calculator%20%28Public%29.xlsx?dl=0(Figured I'd add it since technically it will run in Google Sheets on iOS too...).

(I actually posted this before, here's a bit more info...
https://www.tormek.com/forum/index.php?topic=4455.msg31776#msg31776 )
Added 11/22/21: Links to "OpenAngleTool" created by Tormek forum member "freejack"
Open Angle Tool forum thread Open Angle Tool CalculatorThis calculator works as a web app, and on both iOS and Android, can be saved to the homescreen and run as an app. It gives answers for both "Measuring to the Wheel" and "Measuring to the Machine", so can be used on any Tormek model, as well as similar type sharpeners.
All based on
Dutchman's fine work!
Enjoy!
Note: I won't update this post any more... any new information can be found at the website link in my signature.
Edit 7/29/20: Uploaded new files with minor format changes... (no change in results).
Edit 8/6/20: Uploaded new Numbers file with minor format changes... (no changes in results).
Edit 3/8/21: Added Excel Spreadsheet (that can also run in Google Sheets).
Edit 11/22/21: Added Link to forum member freejack's calculator
Edit 4/25/22: Updated Links
Edit 5/16/22: Added note