I might be wrong but I thought that the first blade hooks the hair and pulls it up and the second and subsequent blades actually cut it. This being one of the reason why carts lead to ingrowns.
Where's the proof that the lead blade wears faster on a multi-bladed cartridge?
I suggest all the blades wear at the same sequence and speed, assuming they all have contact with whiskers.
Gillette could do the study, they make enough profit, lolThat would be an interesting study. If it would be easy to swap positions I guess someone could try moving the rear blade up front and every other blade back one I guess a good study could be developed. Since isn't practical without destroying the cartridge I guess we may never know.
Now if they could only invent a cartridge that cuts WTG, XTG, and ATG simultaniously with each stroke I would be impressed.I might be wrong but I thought that the first blade hooks the hair and pulls it up and the second and subsequent blades actually cut it. This being one of the reason why carts lead to ingrowns.
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I believe the theory of the hysteresis hypothesis is valid, but I'm not sure it make the lead blade do more work and wear faster.Now if they could only invent a cartridge that cuts WTG, XTG, and ATG simultaniously with each stroke I would be impressed.
I think the hysterisis hypothesis is histerical.
If'n you ain't careful, Gillette will be suing you for something, because that makes more sense than anything I've ever heard on the subjeck, and I am so bright my Dad used to call me son!Ahem. My theory is that it's purely a numbers game. The first blade dulls first and then the second blade dulls and so on down the cartridge. The more blades you have the longer it takes to dull each blade in it's turn and so the longer the cartridge lasts. That is my theory which belongs to me.
'cause mere mortals like you and me just ain't as bright as we think we are.Genius. You've essentially pointed out that 3 or 5 blades SHOULD last longer than one. Now, I'm just sitting here wondering why didn't I think of that?
Fun question!
Gillette says their Proglide lasts up to a month of shaves, but doesn't define a shave- is it daily ?, one pass WTG ?, they don't say. My guess is that by designing their multi blade heads in a way to minimize the approach angle through reducing user error, and consequently the stress on the cutting edge of the blades, they believe they've effectively reduced the amount of wear and tear and prolonged the useful life of a cartridge. I've never used one of the Proglides, so have no personal take on it. Perhaps, those of you who do use these carts might weigh in.
The OP postulates that it's the first edge that gets dulled first. I'd say that makes sense, if the blades are designed to always cut in a 1,2,3,4,5, order. But on the other hand, if the numbered edges can cut in a differing order, say by having the the lubricating strip, or what Gillette calls micro-fins, or even user pressure changes result in altering the blade cutting order from 1-5, it might not be the case.
Could be, but then why dont we get a BBS in one pass then? And why do you need more than 2 blades? (Rhetorical question).I believe the theory of the hysteresis hypothesis is valid, but I'm not sure it make the lead blade do more work and wear faster.
Sorry. If I worked with NASA, the rockets wouldn't get from the Cape to the Georgia border . As for the Covid Task Force, I'll plead the Fifth.Now you've gone and done it! Gettin' all "Scientifical" on us! Why ain't you werkin' with NASA, or the Covid Task Force!
It might make it if the explosion was big enoughSorry. If I worked with NASA, the rockets wouldn't get from the Cape to the Georgia border . As for the Covid Task Force, I'll plead the Fifth.
I found that the small space between the blades loaded up so quickly, that I never felt that the additional blades did nothing for me, but enhanced the pockets of the advertising agencies.
The most shaves for me was a schick xtreme 3, I think about 20 to 30 one cartridge, trac ii 6 or 7 never tried to push itUnless I use a Razorpit, the blades just don't last on a cart. I can get maybe 4-5 shaves. Maybe if you have soft water and not much of a beard you could get away with more. I don't tolerate dull blades at all, it leads to skin irritation.
I believe the thicker the blade, the longer it can hold an edge with in reasonI believe that they last longer because they are thin at one end, much, much thicker in the middle, and then thin again at the far end.
I believe the thicker the blade, the longer it can hold an edge with in reason