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In the Shop => Knife Sharpening => Topic started by: cbwx34 on July 05, 2020, 05:59:28 pm

Title: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on July 05, 2020, 05:59:28 pm
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.

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=4576)

An Angle Calculator to set the USB height, that works in the Apple Numbers app...

https://www.dropbox.com/s/hr6d1b1yj3e95c1/USB%20Angle%20Calc-Universal%20%28Public0.6%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/1wggztavw313s5b/GoCalcAngleCalc_05.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/id286287080


Just 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/5d1ai7oomiss5se/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...). ;) 

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=5467)
(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 (https://www.tormek.com/forum/index.php?topic=4666.0)
    Open Angle Tool Calculator (https://openangletool.github.io/)

This 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 (https://www.tormek.com/forum/index.php?topic=1849)!

Enjoy!   :)

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
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: Jan on July 06, 2020, 11:09:11 am
CB,

If I may put my 0.02$ in, the displayed USB Top to Wheel Distance is by 0.02 mm smaller than the exact value.  ;)

It is of course fully negligible. The reason for it may be some rounding or number representation.

Jan
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on July 06, 2020, 03:03:25 pm
...the displayed USB Top to Wheel Distance is by 0.02 mm smaller than the exact value.  ;)
...

I fixed it...   :D  :D  :D

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=4580)
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: Jan on July 06, 2020, 08:05:14 pm
CB,

thank you very much indeed!  :)

Jan
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: Dutchman on July 07, 2020, 09:37:45 am
Quite a difference.
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on August 04, 2020, 10:47:50 pm
If you're an Apple Numbers user... here's what I call a "Visual Angle Calculator" for setting the USB height for knife sharpening, (same calculator, different perspective... maybe gives an idea of what's going on?) :) ...

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=4704)

... can be downloaded here:  Visual Angle Calculator (https://www.dropbox.com/s/4rbdxmih0btq5l6/Visual%20Angle%20Calc-%28Beta%20.02%29.numbers?dl=0)

Edit:  I changed the link... 'cause I added the FVB calculator...

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=4706)
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on August 05, 2020, 05:20:57 pm
Consider this the "iPad Version" of the above...  ::)

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=4708)

...if you're brave...

https://www.dropbox.com/s/vrznl6nc3io8vss/Visual%20Angle%20Calc-iPad-%28PublicBeta%20.05%29.numbers?dl=0

 :o
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: Hannsi1957 on August 05, 2020, 11:17:13 pm
i putt ur Data in my App and what comes out???

please don't get me wrong but that's exactly what I'm trying to explain to you but I've fallen on deaf ears so far :) if I want to use ur calculator I first have to take a course to understand everything. it could all be so simple :). so again you can shoot at sparrows with cannons or why simple if u can make it complicated. keep it simple is the goal. as you see on the result it really works.
with mine one sentence is enough to explain the whole thing i do not need a drawing and not almost a whole page to explain it :)

Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on August 05, 2020, 11:38:48 pm
i putt ur Data in my App and what comes out???

please don't get me wrong but that's exactly what I'm trying to explain to you but I've fallen on deaf ears so far :) if I want to use ur calculator I first have to take a course to understand everything. it could all be so simple :). so again you can shoot at sparrows with cannons or why simple if u can make it complicated. keep it simple is the goal. as you see on the result it really works.
with mine one sentence is enough to explain the whole thing i do not need a drawing and not almost a whole page to explain it :)

It's the same thing... just in picture form.  ;)   

Go hide the video you made on how to use your software (https://youtu.be/HKtMz4Q1dSM)... then see how many understand how to use it.   ;D
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: Hannsi1957 on August 05, 2020, 11:43:22 pm
why i post this????
the only reason..... and i think i understand a bit off this stuff

if i watch ur Picture i get confused :)

but i know u do a lot of work with it and i respect that a lot.
cheers Hanns
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on August 05, 2020, 11:48:34 pm
why i post this????
the only reason..... and i think i understand a bit off this stuff

if i watch ur Picture i get confused :)

but i know u do a lot of work with it and i respect that a lot.
cheers Hanns

Ah I understand now.... yeah I can't argue that.  It does look like a mess without having some idea of what's going on.

I think of this as more of a "visual guide" to how it works, if that makes sense.  In reality, it probably does need a bit of explaining.  It wouldn't take much, but you're right, at first glance it does look confusing.

Thanks!

p.s.  Keep in mind... I still have the "simpler" options available... ;)  (I think you called them "ugly"). :D

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=4576)
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: Hannsi1957 on August 06, 2020, 09:57:45 am
yes my dear i stick to it.....looks ugly and untidy :)
but, and you shouldn't ignore that.....it costs nothing :)

cheers Hanns
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on August 06, 2020, 02:17:36 pm
yes my dear i stick to it.....looks ugly and untidy :)
but, and you shouldn't ignore that.....it costs nothing :)

cheers Hanns

Yours needed a bit of work... I fixed it for you.  ;)   :D

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=4714)
(Translation of "USB to machine" and "USB to wheel" provided by Google Translate... no idea if it's right.)   :o
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: Hannsi1957 on August 06, 2020, 07:44:32 pm
I will check.
But why needed :) the final result is the same
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on August 06, 2020, 08:23:15 pm
I will check.
But why needed :) the final result is the same

Many use the "USB to Wheel" measurement, for example those who use this Angle Tool (https://www.tormek.com/forum/index.php?topic=4170.0)... and they can't use the "USB to Machine" measurement.

It can also be used if you don't have the Horizontal and Vertical measurements available, or to check the accuracy, etc.
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: jvh on August 06, 2020, 09:10:38 pm
If you're an Apple Numbers user... here's what I call a "Visual Angle Calculator" for setting the USB height for knife sharpening, (same calculator, different perspective... maybe gives an idea of what's going on?) :) ...

Hello,

nice visualization. Believe me or not, I have something similar on my TODO list (with very low priority) - I planned add text boxes to drawings in TormekCalc to make dimensions "live". Well, you were faster. ;)


please don't get me wrong but that's exactly what I'm trying to explain to you but I've fallen on deaf ears so far :) if I want to use ur calculator I first have to take a course to understand everything. it could all be so simple :). so again you can shoot at sparrows with cannons or why simple if u can make it complicated. keep it simple is the goal. as you see on the result it really works.
with mine one sentence is enough to explain the whole thing i do not need a drawing and not almost a whole page to explain it :)

IMHO, it can seems so, but practically you have to enter the same values, independently on used calculator:
- Projection distance (Jig projection length)
- Wheel diameter
- Sharpening angle (Grinding angle)
and machine dependend constants (if you don't use default ones). The others are just advanced options and it depends on whether you use them or not.


I will check.
But why needed :) the final result is the same

The final result may not be the same, it depends on right values of horizontal/vertical constant. "USB Top to Wheel" dimension is always right (by design), if correct math is used.

jvh
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on August 07, 2020, 12:13:03 am
Hello,

nice visualization. Believe me or not, I have something similar on my TODO list (with very low priority) - I planned add text boxes to drawings in TormekCalc to make dimensions "live". Well, you were faster. ;)

I believe you.  That's actually a better idea... just putting text boxes to show the changes in the diagram.  Huh.  ???

MHO, it can seems so, but practically you have to enter the same values, independently on used calculator:
- Projection distance (Jig projection length)
- Wheel diameter
- Sharpening angle (Grinding angle)
and machine dependend constants (if you don't use default ones). The others are just advanced options and it depends on whether you use them or not.

The final result may not be the same, it depends on right values of horizontal/vertical constant. "USB Top to Wheel" dimension is always right (by design), if correct math is used.

jvh

Good points too.
Title: Re: iOS-Rechneroptionen zum Einstellen des Schärfwinkels auf Messern...
Post by: Wolfros on February 27, 2021, 02:30:37 pm
How do I get the files to install on my iphone
Title: Re: iOS-Rechneroptionen zum Einstellen des Schärfwinkels auf Messern...
Post by: cbwx34 on February 27, 2021, 04:48:49 pm
How do I get the files to install on my iphone

Which one are you trying?

The Numbers app file you can download directly to the iPhone... it opens with the Numbers app.

The GoCalc file you have to download to a computer than install using the GoCalc app... details are in the app's instructions.

If you want a "stand alone" app (that doesn't rely on another app or program) you can run the Calcapp calculator (https://connect.calcapp.net/?app=qq0pg0#/)... it runs in a browser.  It sets the USB height by measuring directly to the wheel.

If you want a "stand alone" app that sets the height by measuring to the machine, I suggest SchleifJunkies app (https://schleifjunkies.de/en/produkt-schlagwort/software-en/).
Title: Re: iOS-Rechneroptionen zum Einstellen des Schärfwinkels auf Messern...
Post by: Wolfros on February 27, 2021, 05:08:22 pm
I don't get this form opened in goCalc
USB Angle Calc-Universal (Public0.6) .numbers it is available on the Iphone
Title: Re: iOS-Rechneroptionen zum Einstellen des Schärfwinkels auf Messern...
Post by: Wolfros on February 27, 2021, 05:24:57 pm
I don't get this form opened in goCalc
USB Angle Calc-Universal (Public0.6) .numbers it is available on the Iphone
Title: Re: iOS-Rechneroptionen zum Einstellen des Schärfwinkels auf Messern...
Post by: cbwx34 on February 27, 2021, 05:49:05 pm
I don't get this form opened in goCalc
USB Angle Calc-Universal (Public0.6) .numbers it is available on the Iphone

It looks like you have the GoCalc app installed OK.

The other file that you posted above works in the Apple Numbers (https://www.apple.com/numbers/) app.  It gives the same results, just a different option.
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on November 22, 2021, 05:11:02 pm
I added a link to freejack's calculator (https://www.tormek.com/forum/index.php?topic=4666.0) in the first post... it works on both iOS and Android, can be installed and run as an app, and gives answers for both measuring to the machine, and measuring directly to the wheel.  (Should have done this sooner). :)

(https://www.tormek.com/forum/index.php?action=dlattach;topic=4373.0;attach=6022)
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: Willym on November 26, 2021, 10:43:05 pm
I've only just found this thread, and really like the Visual Angle Calculator. It's very easy to see where to input any changes. I compared it to the numbers spreadsheet that I put together (based on Dutchman's work) and it agrees well. Thank you cbwx.
Title: Re: iOS Calculator Options for Setting the Sharpening Angle on Knives...
Post by: cbwx34 on November 27, 2021, 03:56:06 pm
I've only just found this thread, and really like the Visual Angle Calculator. It's very easy to see where to input any changes. I compared it to the numbers spreadsheet that I put together (based on Dutchman's work) and it agrees well. Thank you cbwx.

Thanks... glad you found it useful!  :)