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ps This should answer some of your questions:
https://taraenergy.com/blog/kilowatts-energy-what-you-need-to-know/
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The link you refer to does not provide correct information. There it is stated about the Kilowatt: "A kilowatt is a unit of energy ...". That should be: "A kilowatt is a unit of power, whether in consumption or in delivery or potential." If that power is supplied or consumed, then the duration determines how much energy is supplied or consumed. So energy = power x time. And so Kwh (Kilowatthour) is a unit of energy.

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Gears and adjustment screws are designed to allow a little BACKLASH This gives them a little breathing room in order to function.
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I don't think the 'backlash' you indicate in the drawing is the problem. I think Wolfgang is referring to the fact that the USB doesn't just slide down smoothly. The USB must therefore be pressed down when adjusting downwards, otherwise the screw thread will prevent smooth lowering.

As I said before: "a clever idea".
I cannot recognize in the photo how the stone diameter is set. but with that adjustment your design will be very suitable and above all easy to use.
I suppose there will be a lot of potential customers

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Tormek-compatible CBN wheels from SchleifJunkies.com
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That URL for Schleifjunkies is incorrect. That should be schleifjunkies.de

And what is wrong with my tables?

Nothing... isn't that the same thing? 

only if it is on paper instead of electronically 

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... then maybe a spreadsheet would be just as easy.
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And what is wrong with my tables?

A clever idea and beautifully executed!
However, the tolerance is greater than the stated 0.5°.
The variation in stone diameter (150-250 mm) already gives a tolerance of 1.27°. See attachments.
Other adjustment tolerances are added to that.
You cannot view this attachment. 

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... a prototype that can handle an accuracy of approx. 0.5 degrees right now.

I'm curious, show it. An accuracy of 0.5 is certainly good enough.
The black marker method can be used for re-sharpening.

The photo shows my Front Vertical Base. I got it from 'Wootz' as a thank you for my angle setting method. Apparently he used the supports of the BGM-100, mounted perpendicular to each other.
I unscrewed the horizontal base from the grinder and replaced it with Vadim's construction on which I mounted the horizontal base again, but now vertically.

[But then that adjustable stop must be available.]

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so why bother ?

Whatever you use, the anglemaster (probably most users as you said), Dutchman's tables, Kenjig or sophisticated software, once you've set up the USB you can use the same setting to sharpen a wide variety of knives. by simply setting the projection distance to the original value with the adjustable stop.
But then that adjustable stop must be available.

Eine Durchlaufschere: 

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I appreciate previous comments but there is a glaringly obvious issue here. And we Let's challenge Tormek to do the right thing and produce a self centring jig with the ability to adjust the stop. It isn't rocket science surely?

Hurrah. I fully support that!

It should also be mentioned that Hakan Persson, the current CEO, also has 10 patents and more will most likely follow.

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.

That is very clearly explained.
Thank you very much Rick.