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#11
General Tormek Questions / Re: Should I Persist?
Last post by BPalv - July 07, 2025, 05:14:52 PMQuote from: PeteH on July 03, 2025, 03:33:30 AMFurther, if it is necessary it true the wheel before any use, then the TT-50 should be included with any starter kit and should be included in the instructions.
Pete,
I felt the Tormek T8 was too pricey... it's not though, it's all the accessories!
However....
Have you compared Tormek to any other brand? If you would like to see poor craftsmanship try one of the knock-off's. Other than the accessories pricing and the " oh, you're going to need one of these" system they use, they are a top shelf piece of equipment. The more I use it, the more I love it.
#12
Knife Sharpening / Re: Knife Jig Prototype
Last post by Alston - July 07, 2025, 04:57:01 PMKen,first off I don't yet own a Tormek grinder. I do most of my sharpening on an Axminster Ultimate Edge Belt Grinder, that is able to use most, if not all of the Tormek Jigs. I have a hand knife sharpening jig but wanted something to use on the belt grinder. I wanted to buy the older style Tormek jig but it no longer seems available new. Having the tools I decided to make my own jig. There are literally dozens of hand sharpening jigs that utilise "self Centering" clamps. My jig is just another one of those, but designed to be used on any machine with a 12mm support bar like the Tormek or in my case Axminster Ultimate Edge. The self centering clamp is not perfect but it seems a very common design so I thought it would make a good starting point.
The jig itself is made in several parts. There are two alloy clamp plates attached to which is a 10mm diameter stainless steel bar. Longer or shorter bars could easily be attached if required.
I'm currently in the workshop making another part. I'll post another picture if it works out ok.
I have some other ideas for a truly self Centering jig that could accommodate a wide range of blade thicknesses but I'm not sure if/or how easily it could be made. Something for the future perhaps?
The jig itself is made in several parts. There are two alloy clamp plates attached to which is a 10mm diameter stainless steel bar. Longer or shorter bars could easily be attached if required.
I'm currently in the workshop making another part. I'll post another picture if it works out ok.
I have some other ideas for a truly self Centering jig that could accommodate a wide range of blade thicknesses but I'm not sure if/or how easily it could be made. Something for the future perhaps?
#13
General Tormek Questions / Re: Capacitor Impedance for To...
Last post by tgbto - July 07, 2025, 04:11:47 PMKen, the idea of the formula was to substantiate a reply to an objection regarding the choice of words of the OP.
I am no Richard Feynman, so I will not be able to be as clear as a professional teacher. Still, to make a long story short :
The concept of impedance is a generalization of the concept of resistance, i.e. the proportional relationship between current and tension. With a resistance, everything is simple : tension U is related to current I by the U=R.I relationship.
For a capacitor, U is related to the integral of the current over a period of time. But using mathematics in the complex world, integrating is "simply" dividing by j.w (assuming a sinusoidal current, and where j²=-1 and w or "omega" is the pulsation of the current). So one can write U=Z.I with Z=1/jCw.
Conversely, for a solenoid, U=Z.I with Z=jLw.
Therefore, in electronics, impedance is a generic term covering at once R,L and C. And asking for the impedance of a capacitor is another way of asking for its capacitance. Pretty much in the same way that asking someone for their address will give you the name of their hometown, and a bit more.
As for E=m.c², if I may, there might be a slight twist in your VHS or your recollection of it. To apply E=mc² to your baseball, you would have to thoroughly disintegrate said baseball, and the energy released (in the form of massless photons) would be m.c², m being the rest mass of said baseball. If you could accelerate the ball to lightspeed, its mass would change and things get pretty messy from here. But e=mc² is always true, even for a baseball at rest. And you cannot accelerate it to c², which is not a speed.
Hope this helps,
Nick.
I am no Richard Feynman, so I will not be able to be as clear as a professional teacher. Still, to make a long story short :
The concept of impedance is a generalization of the concept of resistance, i.e. the proportional relationship between current and tension. With a resistance, everything is simple : tension U is related to current I by the U=R.I relationship.
For a capacitor, U is related to the integral of the current over a period of time. But using mathematics in the complex world, integrating is "simply" dividing by j.w (assuming a sinusoidal current, and where j²=-1 and w or "omega" is the pulsation of the current). So one can write U=Z.I with Z=1/jCw.
Conversely, for a solenoid, U=Z.I with Z=jLw.
Therefore, in electronics, impedance is a generic term covering at once R,L and C. And asking for the impedance of a capacitor is another way of asking for its capacitance. Pretty much in the same way that asking someone for their address will give you the name of their hometown, and a bit more.
As for E=m.c², if I may, there might be a slight twist in your VHS or your recollection of it. To apply E=mc² to your baseball, you would have to thoroughly disintegrate said baseball, and the energy released (in the form of massless photons) would be m.c², m being the rest mass of said baseball. If you could accelerate the ball to lightspeed, its mass would change and things get pretty messy from here. But e=mc² is always true, even for a baseball at rest. And you cannot accelerate it to c², which is not a speed.
Hope this helps,
Nick.
#14
Knife Sharpening / Re: Knife Jig Prototype
Last post by PANIC!!! - July 07, 2025, 02:02:21 PMI find it amazing that some of you are able to design and build something like this with precision! Very nice 
#15
Knife Sharpening / Re: Knife Jig Prototype
Last post by Ken S - July 07, 2025, 12:55:50 PMAlston,
Your knife jig looks interesting. Would you please share more information about it?
When I designed the kenjig many years ago, my design goal was to be able to set a common Projection with all knives ranging from paring knives through chef's knives. My thinking was that by using three pre set jigs all to this common Projection, a common Distance from the grinding wheel to the support bar would not have to be reset. Minor differences in Projection could be adjusted by how deeply the knife was set in the jig.
The constraint was that starting in 1992, the SVM jigs had shorter shafts and the common Projection wiuld not work. My work around was to purchase three pre 1992 jigs on ebay. That solved the problem for me, but was not practical for others.
So, my question for you is, is your shaft long enough for for a common Projection for knives from paring to chef's?
Two other questions: Does your jig provide auto self centering? And, can a flatter stop be easily interchanged for straighter knives?
If you jig can handle these three questions, you will have truly advanced knife jigs. It would be the fastest set up available.
Ken
Your knife jig looks interesting. Would you please share more information about it?
When I designed the kenjig many years ago, my design goal was to be able to set a common Projection with all knives ranging from paring knives through chef's knives. My thinking was that by using three pre set jigs all to this common Projection, a common Distance from the grinding wheel to the support bar would not have to be reset. Minor differences in Projection could be adjusted by how deeply the knife was set in the jig.
The constraint was that starting in 1992, the SVM jigs had shorter shafts and the common Projection wiuld not work. My work around was to purchase three pre 1992 jigs on ebay. That solved the problem for me, but was not practical for others.
So, my question for you is, is your shaft long enough for for a common Projection for knives from paring to chef's?
Two other questions: Does your jig provide auto self centering? And, can a flatter stop be easily interchanged for straighter knives?
If you jig can handle these three questions, you will have truly advanced knife jigs. It would be the fastest set up available.
Ken
#16
General Tormek Questions / Re: Capacitor Impedance for To...
Last post by Ken S - July 07, 2025, 12:25:46 PMA number of our members have an electrical/engineering background much more advanced than mine. I appreciate that. My electrical background is generally limited to installing and troubleshooting telephone voice and data circuits and self study in home wiring electricity.
I can read charts like Tormek's and understand why a 50 Hertz, 240 Volt motor in not compatable with 60 Hertz 120 Volt US commercial power. I also understand why a motor drawing 200 Watts requires more power than one drawing 120 Watts.
I can not understand the working of the posted formula, or why it is important. I would like to understand this. I believe I am not alone in this. I would humbly request replies going beyond just mouthing formulas. Please share your expertise by educating the rest of us and explaining the conceps involved and whythey are important
I once watched a marvelous VHS tape explaining Einstein's E=MC2. It gave the example of when a baseball is thrown at the speed of light squared, the baseball (matter) becomes Energy. for me, that was very informative. I would like to better understand the Tormek motors.
Ken
I can read charts like Tormek's and understand why a 50 Hertz, 240 Volt motor in not compatable with 60 Hertz 120 Volt US commercial power. I also understand why a motor drawing 200 Watts requires more power than one drawing 120 Watts.
I can not understand the working of the posted formula, or why it is important. I would like to understand this. I believe I am not alone in this. I would humbly request replies going beyond just mouthing formulas. Please share your expertise by educating the rest of us and explaining the conceps involved and whythey are important
I once watched a marvelous VHS tape explaining Einstein's E=MC2. It gave the example of when a baseball is thrown at the speed of light squared, the baseball (matter) becomes Energy. for me, that was very informative. I would like to better understand the Tormek motors.
Ken
#17
General Tormek Questions / Re: Capacitor Impedance for To...
Last post by tgbto - July 07, 2025, 08:21:32 AMImpedance covering capacitance+inductance+resistance (Z=R+jLw+1/jCw), OP was correct...
#18
Knife Sharpening / Knife Jig Prototype
Last post by Alston - July 06, 2025, 08:16:05 PMI've nearly finished this prototype knife jig. I've not had chance to use it yet. I fitted the construction in whilst waiting for materials for a more pressing job.
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#19
General Tormek Questions / Re: Did ChatGpt lie to me?
Last post by Ken S - July 06, 2025, 07:51:28 PMThe thingiverse file is for a Tormek with 200 mm grinding wheel. The T2000 was a machine with a 250 mm wheel. It would be possible to redesign the file to fit the T2000. Frankly, just purchasing the AWD-250 I mentioned earlier seems like a much more practical choice.
Ken
Ken
#20
General Tormek Questions / Re: Did ChatGpt lie to me?
Last post by LarsHansen - July 06, 2025, 06:11:36 PM@boilerbengal
This is the only water container for a Tormek, I've stumbled upon. I'll leave to others to tell if that will fit your model.
https://www.thingiverse.com/thing:3962736
Your's,
Lars
This is the only water container for a Tormek, I've stumbled upon. I'll leave to others to tell if that will fit your model.
https://www.thingiverse.com/thing:3962736
Your's,
Lars