Recent Posts

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1
Knife Sharpening / Re: TormekCalc2 - Advanced grinding calculator
« Last post by John S on Yesterday at 01:37:23 am »
The level of work on this calculator is way above my ability. If someone takes the time to watch your video in the link there is so much your TormekCalc does.  I have multiple machines and have different grit wheels on them. Talk about making this an easy and accurate endeavor. Thank you.

Yes, I am freeloader-shaming here. The level of work deserves some donations to defray his costs and maybe put a little cash in his pocket.  There are two other people that I know sell a tormek calculator for good money.  This is original work, not copies of anybody's efforts. I am donating to him.  Please help by doing the same.  I will use paypal.

John
2
Knife Sharpening / Re: Budget work station option?
« Last post by Ken S on April 19, 2021, 10:48:26 pm »
Jimbo,
I would build the stand to include the possibility of fitting the Tormek Rubber Work Mat on the top. This could be added later or even in conjunction with an added plywood top. Hereis a link with dimensions:

https://www.tormek.com/usa/en/accessories/other-accessories/rm-533-rubber-work-mat/

Ken
3
Knife Sharpening / Re: Budget work station option?
« Last post by micha on April 19, 2021, 09:20:50 pm »
Excellent Build and informative, Could you please give me the dimensions of the foam inserts used for holding the jigs. I want to make the drawers to suit.
Hi Jim,
welcome to the forum.

The foam inserts are 380x285x80mm or 15"x11.2"x3.125".

Mike
4
Knife Sharpening / Re: TormekCalc2 - Advanced grinding calculator
« Last post by jvh on April 19, 2021, 09:08:50 pm »
Your spreadsheet is awesome and your Excel skills far exceed mine. I had been creating my own spreadsheet for US height and when I saw yours I could see where I had been going wrong in making the trigonometry too difficult for myself. I have now added a simple extra to calculate the micro-adjustments needed between sides when clamping 'V' section knives to avoid the asymmetry of bevel grinds with the standard jigs. This is not the ideal solution as I need to readjust each time I turn the jig and there is a danger of forgetting! I am still experimenting with the other solutions from this forum...

I look forward to seeing the non-public updated version

Hello Merx27,

thank you for your feedback.

I hope that I understand what you mean... can you add a photo/screenshot to your post?

Isn't it easier to make these corrections on the SVM jig by turning the adjustable stop? I did this until I started using eccentric bushings.
I made a mark on adjustable stop, found required No. of turns to correct angle on second side, wrote 0 on the first side of blade and eg. +3/4 on the second side of blade and then tried to be 100% concentrated to flip the jig to the correct side while grinding.  :)

jvh
5
Knife Sharpening / Re: Budget work station option?
« Last post by john.jcb on April 19, 2021, 07:25:01 pm »
John,
Thanks for asking. Too much time. I have been trying to cut back. I am very pleased to see more information coming from Tormek in the online classes. It's the most efficient way to reach a wide audience.
I am also very pleased to have more members carrying the ball.
Ken

A good project for a Tormek intern (if they have them) would be to create a Q&A reference book that references a specific video(s) and time for the answer. With the quantity and number of topics covered it is hard to remember where I saw things. They also present a lot of good information in the Q&A sections.
6
Knife Sharpening / Re: TormekCalc2 - Advanced grinding calculator
« Last post by Merx27 on April 19, 2021, 11:49:28 am »
Your spreadsheet is awesome and your Excel skills far exceed mine. I had been creating my own spreadsheet for US height and when I saw yours I could see where I had been going wrong in making the trigonometry too difficult for myself. I have now added a simple extra to calculate the micro-adjustments needed between sides when clamping 'V' section knives to avoid the asymmetry of bevel grinds with the standard jigs. This is not the ideal solution as I need to readjust each time I turn the jig and there is a danger of forgetting! I am still experimenting with the other solutions from this forum...

I look forward to seeing the non-public updated version
7
Knife Sharpening / Re: Budget work station option?
« Last post by Jimbo on April 19, 2021, 08:47:24 am »
Excellent Build and informative, Could you please give me the dimensions of the foam inserts used for holding the jigs. I want to make the drawers to suit.
8
General Tormek Questions / Re: Tormek Square
« Last post by WimSpi on April 18, 2021, 08:42:44 pm »
It is not easy to find a square that you can use on a round stone. The easiest way to do this is to lay the stone flat on a table and place a square against the table and the stone. Then you can use any accurate (!) square, to get an exact 90 degree line on the surface of the stone.
9
Knife Sharpening / Re: TormekCalc2 - Advanced grinding calculator
« Last post by jvh on April 18, 2021, 05:23:07 pm »
Hello everyone,

new public and non-public version of TormekCalc2 is available (v2.63).

Main News:

  • BatchCalc [New non-public module]

    Allows calculations for batch sharpening of multiple knives or tools without the need of repeated measuring because it calculates USB height difference between each steps and recalculates it to required Tormek Micro adjust nut turns. However all calculated heights are still available for USB setting or checking. For batch sharpening, of course, you need to have each knife or tool clamped in a separate jig. This version BatchCalc supports batch grinding up to 6 knives/tools in one go but it can be easily increased.

    New drop-down list contains a merged database of knives and tools for quick selection of stored grinding data, and it is also possible to select any of the supported jigs, allowing you to perform batch grinding at once without restriction. All needed grinding values and/or corrections can be entered manually too as well as angle shift for selected wheels (eg. for honing).

    Calculated sequence of grinding steps depends on used wheels, USB types and machines.

    Setting by turning of Micro adjust nut is very quick (except when many turns are needed) and very precise. All Tormek Micro adjust nuts are graduated for each 0,25 mm = 1/6 of turn, which increase/decrease the USB height by 0,25 mm.

    Displayed resolution of required Micro adjust nut turns is adjustable in three steps, default is 0,5 which means that calculated values are rounded to the halves of the micro adjust nut graduating (0,5/6 of turn), eg. "▲    1  1,5/6". Other possible steps are 0,25 (0,25/6 of turn) and 1 (1/6 of turn).

    Using and capabilities can be found in this video: https://www.youtube.com/watch?v=9qtyTKqQb1g

    Because this module is IMHO far from the needs of hobbyists and completely out of the class of any competing application (like the whole TC2  ;) ), I decided that it will be freely available only for contributors and donors, who can imagine how much time it takes and already took the development of this calculator. Therefore shared public version of TormekCalc2 contains screenshot and the link to the presentation video only! I will send a link and password to all contributors to download the full version, if you do not receive an e-mail in a short time, please PM me.


  • Multilanguage support

    Added German translation. (Thank you Stephan!)

    Language can be select through the drop-downlist in Settings sheet.

    Please note that help in comments stays in English only, because it is not possible to change it without using VBA. Compromises were made due to table headers that could not be translated. New row with translation was inserted here, please hide it if you use English as default language.


  • SVD-110 Tool rest settings/calculations are supported now

    Default setting for SVD-110 was added to „Jigs“ sheet.
    - For calculation you have to select Jig "SVD-110 long side" or "SVD-110 short side", enter Projection length and desired Grinding angle.
    - For setting you have to set calculated USB height and then set the tool rest angle via projection length.
    - Reverse calculation of the set angle on tool rest can be done on BevelCalc sheet.
      More info you can find in this topic – see Reply #46 and Reply #48

    Just a reminder - TC2 allows you to specify/add new (custom) jigs directly on the "Jigs" sheet and use them when needed for calculations via "Jig selection" drop-down list.


  • Wheels table on the TormekCalc sheet

    Added new wheels, now table contains 19 wheels + 4 custom


  • EdgeCalc

    Added the row „Hollow (real) grind depth [mm]“ which shows the deviation from the flat grind caused by radius of the wheel.


  • Settings

    Added 5 more machines to Machines table (in hidden columns), now is possible to specify settings for 10 different machines.


  • And much more...

    Internal changes, corrections, bug fixes, comments etc.


If you don’t plan to use any of the functions included in TormekCalc2 just hide unused row(s), column(s), sheet(s) etc. TormekCalc2 is fully customizable.  ;)

Ideas for improvement are welcome as well as feedback. Please feel free to contact me if you need any further information.

Hint: If you have data in Knives or Tools sheet just select all uses rows between column C to AD (included), copy them to clipboard (Ctrl+C) and paste them as VALUES to new version of TormekCalc2.

Enjoy!

jvh



Attention!

Due file size and forum restrictions (maximum individual size is 256 KB) is TormekCalc2 version 2.1+ available only on external web storage.

Download HERE (WebShare.cz, click Download File and then Download slowly).

Current version 2.63
(TormekCalc2_Public_v263.zip, packed size 1 487 684 bytes, TormekCalc_Public_v263.xlsx, unpacked size 1 555 756 bytes + sample pictures in the Knives and Tools folders.)

10
General Tormek Questions / Re: Tormek Square
« Last post by Ken S on April 18, 2021, 03:26:59 pm »
Wim,

These look very similar. The inside length of the legs is more important for this than the outer length. If you are marking a square line across your grinding wheel, the inner length should be 50mm or slightly longer. The middle size seems the best choice to me.

I like that the base can be detached.I think it might be easier to use with the base removed.

Keep us posted.

Ken
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