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Showing 1 of 193 conversations about:
Spey
22
Jul 10, 2018
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JonasHeineman
5987
Jul 10, 2018
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SpeyThanks, I think it was off by 10x because of conversion from CM to MM - I've updated it.
CC: @Marrenmiller @megical_banana thanks also for pointing this out.
CC: @Marrenmiller @megical_banana thanks also for pointing this out.
AstroBev
80
Jul 10, 2018
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JonasHeinemanPerhaps I'm off on my math, but the updated thickness behind the edge indicates it's almost 39° per side? Can someone double check my work?
Shoopmonster
6
Jul 10, 2018
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AstroBev Depending on the 1mm behind edge being measured along the surface of blade (53 degrees per side) or completely perpendicular to the spine of the knife (39 degrees per side). If the 0.16 mm number was correct, it would be 4.6 degrees per side, regardless of how the measurement was taken.
AstroBev
80
Jul 10, 2018
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ShoopmonsterAh okay so I'm not crazy. So the jury is still out on the actual thickness behind the edge.
JonasHeineman
5987
Jul 10, 2018
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SpeyI remeasured this with calipers and the correct spec is +/- 0.5mm @ 1.0mm behind the apex.
Sorry for the confusion - I'm not sure how the first specs were so far off, but we've double-checked it and update the page.
Thanks for your attention to detail on this. We added this to the Specs on the page because members were asking for it regularly, but we didn't yet have a consistent person or process for measuring it. We now have a system - John, our lead engineer, will measure it and then I will check it.
Sorry for the confusion - I'm not sure how the first specs were so far off, but we've double-checked it and update the page.
Thanks for your attention to detail on this. We added this to the Specs on the page because members were asking for it regularly, but we didn't yet have a consistent person or process for measuring it. We now have a system - John, our lead engineer, will measure it and then I will check it.
GavkoKnives
325
Mike Gavac
Jul 10, 2018
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AstroBevthey are around 0.019" behind the edge...
AstroBev
80
Jul 10, 2018
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GavkoKnivesAh okay, thanks for the update guy! Sounds like it'll be a pretty good slicer!
Spey
22
Jul 10, 2018
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JonasHeinemanI believe you guys are on the wrong path (method of describing the geometry). Listing a thickness at a distance from the apex using two measurements is mearly complicating a simple description of the apex angle, more simply described as DPS (Degrees Per Side) or INC (Inclusive both sides). You are assuming people understand and can apply trigonometry to solve an answer while providing approximate (~) numbers adding needless confusion and disinformation.
Example: using your last quoted spec info 0.5mm thick at 1mm back from edge = 14dps or 28° inclusive (probably still below actuality) Math via Right Triangle Calculation Side a= 0.00984" (1/2 of .5mm) Side b= 0.03937" (1mm) angle a = 14.0328° (14° DPS or 28° Inclusive)
Mike more simply quoted above a number of 0.019" behind the edge. I would assume, doing as I would, he is measuring the thickness at the transition between primary blade grind and secondary edge grind. Knowing this along with spine thinkness and blade height provides more comprehensive spec-data.
Both methods somewhat incomplete, without consideration of overall geometry of the blade and somewhat meaningless. Mike example could apply to a blade with secondary bevel of 15dps (30°inc) and/or 25dps (50°inc) depending on how the primary is ground.
I believe one needs to have just a little more info to be able to actually have useful/meaningful information. Couple examples: 1) List secondary edge bevel (DPS or inclusive) and TBE (Thickness Behind Edge) at transition between Primary & Secondary. 2) List secondary edge bevel, primary blade bevel (always state whether DPS or INC).
Along with 1) or 2) above spine thickness, blade height, and grind (FFG, Saber 1/2, 3/4, 7/8, etc.) would be fairly comprehensive/meaningfull info.
I don't mean to complicate things, just the opposite (get accurate meaningful info).
Example: using your last quoted spec info 0.5mm thick at 1mm back from edge = 14dps or 28° inclusive (probably still below actuality) Math via Right Triangle Calculation Side a= 0.00984" (1/2 of .5mm) Side b= 0.03937" (1mm) angle a = 14.0328° (14° DPS or 28° Inclusive)
Mike more simply quoted above a number of 0.019" behind the edge. I would assume, doing as I would, he is measuring the thickness at the transition between primary blade grind and secondary edge grind. Knowing this along with spine thinkness and blade height provides more comprehensive spec-data.
Both methods somewhat incomplete, without consideration of overall geometry of the blade and somewhat meaningless. Mike example could apply to a blade with secondary bevel of 15dps (30°inc) and/or 25dps (50°inc) depending on how the primary is ground.
I believe one needs to have just a little more info to be able to actually have useful/meaningful information. Couple examples: 1) List secondary edge bevel (DPS or inclusive) and TBE (Thickness Behind Edge) at transition between Primary & Secondary. 2) List secondary edge bevel, primary blade bevel (always state whether DPS or INC).
Along with 1) or 2) above spine thickness, blade height, and grind (FFG, Saber 1/2, 3/4, 7/8, etc.) would be fairly comprehensive/meaningfull info.
I don't mean to complicate things, just the opposite (get accurate meaningful info).
GavkoKnives
325
Mike Gavac
Jul 10, 2018
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Speyhaha, mad scientist. I bet You're Cliffs friend :D i mean that as a compliment ;) You're absolutely right.
I cant measure it too perfectly so its all eyeballed with calipers and based of eyeball estimate from experience, but im guessing the primary to be around 5dps with production common 20 dps secondary thats around 19-20 thousands behind the edge...
Spey
22
Jul 11, 2018
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GavkoKnivesMichael,
Funny! But, no not a friend of Cliff's, but do highly respect and do understand where you are coming from. Talk about a misunderstood dude!
Your comments appear to represent my thoughts from what I have seen with this blade (dropping it down to 15dps would push it a bit over 20thou BTE (at primary/secondary transition). With primary available for those ambitious enough to thin things out further.
I hope the folks in charge here take my comments as they are meant (constructively). It appears they are "attempting" to do a better job related to listed spec's. I commend them for that, and hope they can understand I commend them for there efforts.
Really pleased to see this colab available minus a flipper tab ... ;-)As much as I enjoy them, believe they are more a novelty than a form-follow-function. More for the Skeltons of our world that developmentally "need" opening assistance to get it deployed (Viagra flipper tabs LOL). No disrespect meant, I really assumed they (flippers) would be a fad expired by now. I would have really likes to see the flipper delete also include tip-down-clip position, as to me tip-up is more a result of the flipper movent. Oh-well, something a quick-mod can solve fairly easily.
I can remember watching you hunched over that grinder in storage basement years back. Looked like third-world-conditions, and my friends thought I was crazy with my positive comments about what you were doing while the rest of community was doing thick-n-heavy.
Thanks for commenting in and "don't cuch yourself" ;-) Regards, Chris
Funny! But, no not a friend of Cliff's, but do highly respect and do understand where you are coming from. Talk about a misunderstood dude!
Your comments appear to represent my thoughts from what I have seen with this blade (dropping it down to 15dps would push it a bit over 20thou BTE (at primary/secondary transition). With primary available for those ambitious enough to thin things out further.
I hope the folks in charge here take my comments as they are meant (constructively). It appears they are "attempting" to do a better job related to listed spec's. I commend them for that, and hope they can understand I commend them for there efforts.
Really pleased to see this colab available minus a flipper tab ... ;-)As much as I enjoy them, believe they are more a novelty than a form-follow-function. More for the Skeltons of our world that developmentally "need" opening assistance to get it deployed (Viagra flipper tabs LOL). No disrespect meant, I really assumed they (flippers) would be a fad expired by now. I would have really likes to see the flipper delete also include tip-down-clip position, as to me tip-up is more a result of the flipper movent. Oh-well, something a quick-mod can solve fairly easily.
I can remember watching you hunched over that grinder in storage basement years back. Looked like third-world-conditions, and my friends thought I was crazy with my positive comments about what you were doing while the rest of community was doing thick-n-heavy.
Thanks for commenting in and "don't cuch yourself" ;-) Regards, Chris
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Listed Specification: Blade thickness (@ 1 mm behind apex): 0.006 in (0.16 mm)
Look fwd to this release ;-)