Author Topic: Calibration feature of knife jig  (Read 2362 times)

Offline Sharpco

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Calibration feature of knife jig
« on: September 13, 2018, 03:37:21 am »
If Tormek decide to make a new knife jig, I want to suggest "the calibration feature"

I think that not only self-centering but also calibration feature are necessary. Because asymmetric bevel(flat grind) or uneven surface of the blade can disable the self-centering.

This can be found not only in knives, which are made very roughly, but also in factory knives produced in the U.S.
« Last Edit: September 13, 2018, 07:51:18 am by SHARPCO »

Offline Ken S

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Re: Calibration function of knife jig
« Reply #1 on: September 13, 2018, 03:59:02 am »
I agree with you, Sharpco. I would like to see a much more sophisticated knife jig. I doubt you would find the features you want in a forty dollar knife jig. I hope it will happen, although I would be pleasantly surprised if the design got past the projected market size and price critics.

Ken

Offline WolfY

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Re: Calibration feature of knife jig
« Reply #2 on: September 13, 2018, 02:30:34 pm »
If Tormek decide to make a new knife jig, I want to suggest "the calibration feature"

I think that not only self-centering but also calibration feature are necessary. Because asymmetric bevel(flat grind) or uneven surface of the blade can disable the self-centering.

This can be found not only in knives, which are made very roughly, but also in factory knives produced in the U.S.

Mmmmm/ Lets see. Self centering is the most desirable feature we can ask. That will be good for 99% of the knifes.
Calibration of the jig is yet another feature the is very specific and will probably make the jig even more sophisticated at a very high cost. Money, weight, and ease of usage.
"uneven surface of the blade can disable the self-centering." Depend on the self centering design of cause. Do you have an idea for self centering that collided with uneven surface?

I wonder how much would you guys be prepared to pay for a self centering jig or system?
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Offline RickKrung

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Re: Calibration feature of knife jig
« Reply #3 on: September 13, 2018, 05:36:45 pm »
...snip... I want to suggest "the calibration feature" ...snip...

I do not even understand what this is "calibration feature".  Please elaborate.

Rick
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Offline Sharpco

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Re: Calibration feature of knife jig
« Reply #4 on: September 14, 2018, 12:08:03 am »
If Tormek decide to make a new knife jig, I want to suggest "the calibration feature"

I think that not only self-centering but also calibration feature are necessary. Because asymmetric bevel(flat grind) or uneven surface of the blade can disable the self-centering.

This can be found not only in knives, which are made very roughly, but also in factory knives produced in the U.S.

Mmmmm/ Lets see. Self centering is the most desirable feature we can ask. That will be good for 99% of the knifes.
Calibration of the jig is yet another feature the is very specific and will probably make the jig even more sophisticated at a very high cost. Money, weight, and ease of usage.
"uneven surface of the blade can disable the self-centering." Depend on the self centering design of cause. Do you have an idea for self centering that collided with uneven surface?

I wonder how much would you guys be prepared to pay for a self centering jig or system?

Hello WolfY,

IMHO, the calibration feature is more important than self-centering feature. This is because it enables more sophisticated manipulation like a manual mode of camera. 'Automatic' is a good feature but it can't cope with all the situations.

Offline Sharpco

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Re: Calibration feature of knife jig
« Reply #5 on: September 14, 2018, 12:16:17 am »
I do not even understand what this is "calibration feature".  Please elaborate.

Rick

Rick,

It is a feature of fixing the blade with a jig and then manually adjusting the angle using a lever. Would it be better to call it adjustment rather than calibration?

Offline WolfY

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Re: Calibration feature of knife jig
« Reply #6 on: September 16, 2018, 01:21:36 am »
If Tormek decide to make a new knife jig, I want to suggest "the calibration feature"

I think that not only self-centering but also calibration feature are necessary. Because asymmetric bevel(flat grind) or uneven surface of the blade can disable the self-centering.

This can be found not only in knives, which are made very roughly, but also in factory knives produced in the U.S.

Mmmmm/ Lets see. Self centering is the most desirable feature we can ask. That will be good for 99% of the knifes.
Calibration of the jig is yet another feature the is very specific and will probably make the jig even more sophisticated at a very high cost. Money, weight, and ease of usage.
"uneven surface of the blade can disable the self-centering." Depend on the self centering design of cause. Do you have an idea for self centering that collided with uneven surface?

I wonder how much would you guys be prepared to pay for a self centering jig or system?

Hello WolfY,

IMHO, the calibration feature is more important than self-centering feature. This is because it enables more sophisticated manipulation like a manual mode of camera. 'Automatic' is a good feature but it can't cope with all the situations.

Got your point. Will consider that.
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Offline cbwx34

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Re: Calibration feature of knife jig
« Reply #7 on: September 16, 2018, 05:10:50 pm »
...
cbwx34, don't jump on me ;)

As long as you know... I'm lurking in the background...  ;D
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Offline Exact Blade

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Re: Calibration feature of knife jig
« Reply #8 on: September 27, 2018, 06:40:25 pm »
I agree. Rarely is the knife blade centered perfectly in the jig, resulting in slightly different angles on a dual bevel blade.
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Offline RickKrung

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Re: Calibration feature of knife jig
« Reply #9 on: September 27, 2018, 06:54:00 pm »
I agree. Rarely is the knife blade centered perfectly in the jig, resulting in slightly different angles on a dual bevel blade.

Agreed.  No question there.  My point in asking was initially simply for clarification of what was meant by "calibration" feature.  Subsequently, once it was clear it was: to further refine/adjust the angle AFTER the blade was held in a self-centering jig, I have two questions, which are really one complicated question. 

If the supposed self-centering jig requires further refinement/adjustment of the angle, then I suggest it has failed in its purpose, and if it has not so failed, then striving for further refinement in the angle is, in my opinion, trying to take things too far - that is, trying to be overly exact in a system that otherwise cannot be that exact. 

Maybe that is really isn't a question or questions..., but maybe it can be stated as such.  If the self-centering jig works, why is it necessary to try to refine the angle any further?

Rick
Quality is like buying oats.  If you want nice clean, fresh oats, you must pay a fair price. However, if you can be satisfied with oats that have already been through the horse, that comes at a lower price.

Offline Sharpco

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Re: Calibration feature of knife jig
« Reply #10 on: September 28, 2018, 03:09:36 am »

Maybe that is really isn't a question or questions..., but maybe it can be stated as such.  If the self-centering jig works, why is it necessary to try to refine the angle any further?

Rick
Rick,

The self-centering feature works when only the blade is properly grinded. Check the knives in my photos above.