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Messages - Dutchman

#46
Yes, that's a good cause for celebration.
Torgny Jansson, however, already filed a patent in 1978 for a jig that we now know as SE-76, but with its own support instead of USB. See "Fig 4"
In total, Johansson holds 13 patents according to Epacenet  See attached list.
In 1982 he applied for a patent for the device as we know it today: "Device for grinding and/or honing"
In a shop of old books I found a manual in Dutch in which the "Supergrind 2000" is presented as the latest machine. This is probably Tormek's oldest handbook on sharpening.
#47
That is very clearly explained.
Thank you very much Rick.
#48
Quote from: cbwx34 on October 30, 2022, 03:56:47 PM
...
Since this is a "sticky" I'll add this link here...

Knife Sharpening Calculators available

... probably every app/calculator/spreadsheet made, came from, or was inspired by Dutchman's work.   :)
Thank you. I have added the link to the first post of this topic.

How do you hide the link in the 'title'??
#49
This topic has been made sticky so that it will always be at the top of the board. To ensure the availability of the most important documents, they are attached to the first post at the beginning of this topic.
The size of the booklet versions was outside the allowed limit of 1024Kb. However, the Adobe Reader app offers the option of printing the A5 documents as booklet on A4.
#50
In the first post, at the start of this thread, I added an extension that references Perra's spreadsheet to generate tables for use with the KJ-45 that does not have an adjustable stop.
See https://forum.tormek.com/index.php?topic=1849
#51
Knife Sharpening / Re: Angle Calculator Lite V1,3
October 21, 2022, 10:22:30 AM
Quote from: Perra on October 20, 2022, 07:42:43 PM
...
For those who like paper tables to have by the side when you grind ...
...
With the new Self-centering Knife Jig KJ-45, the projection distance can no longer be adjusted, due to the removal of the adjustable stop. My tables, however, were based on coarse adjustment with the usb and fine adjustment with the adjustable stop. These are therefore no longer usable with the KJ-45.

So thank you very much Perra for this spreadsheet. If I buy the KJ-45, I will gratefully use your workpiece. Also compliments for the beautiful design.

I imported the spreadsheet with the open source office package LibreOffice. It worked without problems and I saved it as .ODS file.
#52
General Tormek Questions / Re: Faulty Tormek T8
September 08, 2022, 10:12:42 AM
Quote from: highpower on September 07, 2022, 09:40:40 PM
...
I bought (two) of the exact same switch assemblies for $12.82 each.  https://www.mouser.com/ProductDetail/E-Switch/KJD17-21213-112?qs=f57gQzlyLioCumoXaJCILA%3D%3D

Here is a link for the UK: https://www.mouser.co.uk/ProductDetail/E-Switch/KJD17-21213-112?qs=f57gQzlyLioCumoXaJCILA%3D%3D
...
According to the imprint, that switch is obviously for 120 volts. A 230 volt version is required for the UK.
#53
General Tormek Questions / Re: Running on inverter?
September 05, 2022, 10:17:52 AM
A search for "inverter" resulted in  several topics e.g.: https://forum.tormek.com/index.php?topic=3198.msg18565#msg18565
#54
The essential distance to set for the sharpening angle is between the support and the stone. I really don't understand why frantic efforts are being made to eventually use software that takes a different approach.
What is the big advantage?
Moreover, cbwx34's Calcapp calculator is a functional and extremely simple app that offers a good approach.
#55
Quote from: tgbto on May 17, 2022, 01:10:28 PM
And just in case, a simple USB-C to HDMI is very easy to set up and allows to duplicate the screen of the iPad.
Huh? USB-C on iPad?
Mine only has a 'lightning' connector.
I suppose I don't understand your proposal.  ???
#56
Quote from: cbwx34 on May 14, 2022, 01:59:12 AM
...
... would you use it?  ::)  (It can be customized for "home builds" within reason...)  ::)  I know most will say, "let's wait and see", just tossing out the idea.  :o
...
A drawing would help  ;)
#57
I have been using such a "Molenmes" for over 30 years. Here in the Netherlands it is very popular and is known for not requiring sharpening. Sometimes a few strokes with the honing steel is enough to keep it sharp. The only drawback of this knife is that it is not stainless. So always clean after use.
#58
Quote from: cbwx34 on April 29, 2022, 08:39:12 PM
I know a lot was made in the beginning that measurements needed to be made to decimal point accuracy, but that's not necessary.  A simple metric ruler can measure the wheel, and something like a combination square can set the USB height.
"In the beginning" it was as simple as this and sufficiently accurate:
#59
Hand Tool Woodworking / Re: SE-77 & TTS-100
April 11, 2022, 10:22:21 AM
Quote from: RichColvin on April 11, 2022, 02:52:54 AM
...
But, I would prefer to have a formal to calculate this.  So this is a request of my geeky friends to help me find such a formula.  Anyone?
Rich,
In my document "More math ..." (see link in my 'signature' to find it) I solved this problem for the "cbwx34-fix", but basically the same problem.
#60
General Tormek Questions / Re: Power Inverters
March 23, 2022, 10:37:55 AM
A search for "inverter" resulted in  several topics e.g.: https://forum.tormek.com/index.php?topic=3198.msg18565#msg18565