Help 8/8

Hello!

I bought a bar of steel 52100, and I want a razor blade 8/8, but I never saw one, could someone pass me measures of a razor 8/8.
I want know the length, thickness.
The steel is 37mm x 8mm x 250mm .
I would look like these models.
http://i283.photobucket.com/albums/k...ackopentoe.jpg
http://i283.photobucket.com/albums/k...enoverview.jpg
http://i283.photobucket.com/albums/k...cewoodside.jpg
http://i283.photobucket.com/albums/k...ngopenside.jpg
http://i283.photobucket.com/albums/k.../RBopentoe.jpg
http://i283.photobucket.com/albums/k...ger/Holler.jpg
http://i283.photobucket.com/albums/k...1242202571.jpg

Gostaria de qualquer um destes.
Thanks
Ale

What measurements do you need specifically?

I don't have any 8/8, but I do have a good shaving 7/8 and I could easily extrapolate the numbers you'd need for an 8/8.

If you are ordering a custom cutlery service and need to instruct someone on how the geometry of a blade should be, I don´t think the result would be of any good.

If you want to make one yourself, I suggest you to shave more. To understand why razor blades are the way they are. Cuting angles, honing, durability, etc. Of course, then read about bladesmith.

Best,
Felipe

Quote:

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Originally Posted by gaucho

If you are ordering a custom cutlery service and need to instruct someone on how the geometry of a blade should be, I don´t think the result would be of any good.

If you want to make one yourself, I suggest you to shave more. To understand why razor blades are the way they are. Cuting angles, honing, durability, etc. Of course, then read about bladesmith.

Best,
Felipe

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That advice is golden. Really- if you need to ask about the geometry of an 8/8 blade then you aren't ready to make one. You need to get your hands on more razors and really study them yourself. This is a huge reason many knifemakers can't and won't make razors- because they don't have enough experience with them themselves.

While the above two are absolutely correct, IMHO, I could send you the dimensions of an excellent shaving 1/2 hollow 8/8 and an equally excellent full hollow 8/8. It would probably have to wait until tomorrow night, as I am busy today and tonight. If I can find my digital calipers, the measurements might even be accurate!

I agree as far as making a blade using dimensions as reference, I wonder though.....

if a person was setup correctly for going from a pattern, and had an excellent blade to pattern from, couldn't they duplicate it? for instance I think most of the guys grinding blades grind them by hand right, which does take more skill, understanding etc. but what if a person was using a grinder that was capable of very precise grinding, dialed in, not dependent on the operator so much? Just curious.

Red

All I can say is that guy has good taste in razors!


:nj

Quote:

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Originally Posted by Proraso Man

i think that making a razor is not an incredibly skilled process

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Lol, well it is. Many knifemakers won't even try it. There's a reason why some customs look a lot sloppier than others- cause it ain't easy to do WELL.

Red- you mean like using a CNC machine to grind the shape? That could work. But again- you'd probably want a $20,000 CNC machine first lol.

Quote:

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Originally Posted by Philadelph

Lol, well it is. Many knifemakers won't even try it. There's a reason why some customs look a lot sloppier than others- cause it ain't easy to do WELL.

Red- you mean like using a CNC machine to grind the shape? That could work. But again- you'd probably want a $20,000 CNC machine first lol.

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I bet using a CNC setup to make razors would be nerve wracking.

Taking something that thin and flexible and putting it in a jig or magnetic chuck consistently would be a nightmare if you were looking to keep the tolerances tight.

Doing finish work, without doing it by hand is really, really hard IMHO.

I have flung a few thin little sheets of steel off the grinder working on small pieces like that, and using a mill wouldn't be much easier, I bet.

Now, a plunge EDM would open up some interesting blade geometry possibilities...

Quote:

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Originally Posted by Philadelph

That advice is golden. Really- if you need to ask about the geometry of an 8/8 blade then you aren't ready to make one. You need to get your hands on more razors and really study them yourself. This is a huge reason many knifemakers can't and won't make razors- because they don't have enough experience with them themselves.

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+ 1!..then try to idealize the best razor for you..after this..make one and another and another one...:gl:

Quote:

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Originally Posted by tcharah

+ 1!..then try to idealize the best razor for you..after this..make one and another and another one...:gl:

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I think these statements are a bunch of baloney IMO.
If you wish to make a razor and you want some kind of benchmarks to go by. I believe he is asking for general measurements of what people have in their arsenal of razors or are in the process of making.
Questions like:
1. How thick is the spine on the blade?
2. What is the cutting surface length?
3. What is the length of the tang and monkey tail?
4. What is the height of the blade from the top of the spine to the cutting surface?
In my limited knowledge of razors, I heard that the height is proportional to the thickness of the spine in a 4:1 ratio. so if the razor is to be a 8/8 razor the thickness of the spine could be a 1/4" thick.
He didn't ask about anything else except for dimensions.
I have never built a kite but I'm sure I could go to a kite makers forum and ask the sam question on dimensions to build a kite and they would provide an answer. I don't need to attempt to build one and attempt to glean information on how to build a kite.
These are not difficult questions to give the guy.

Turbine712
Thanks!
Thank you very much!
I go done, like you won one of this and I'm sure of it. I had never saw a razor, and restored one or a razor scale, but see my work.
http://i283.photobucket.com/albums/k...estaurada2.jpg
http://i283.photobucket.com/albums/k...Restaurada.jpg
you Ja got a great friend in Brazil and if you need something can talk.
Thank you again, my friend
Ale

Quote:

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Originally Posted by Philadelph

Lol, well it is. Many knifemakers won't even try it. There's a reason why some customs look a lot sloppier than others- cause it ain't easy to do WELL.

Red- you mean like using a CNC machine to grind the shape? That could work. But again- you'd probably want a $20,000 CNC machine first lol.

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Aww man, the company I work for uses that type of equipment to manufacture medical devices -- the problem is that I don't know how to use them and I don't think they'd let me make a razor here anyway.

CMM, CNC, and wire EDM machines, centrifugal barrel tumblers, grinders, buffers, laser etchers, 3D printers -- all sorts of stuff I never even heard of prior to working here. I always thought they were interesting in a "Oooh, heavy machinery!" way but now I walk around thinking, "How could I use this on a razor?". :)

Ale, What can I say, Your a diamond in the rough in this endeavor in making and restoring razors.
That is one beautiful razor and my help was nothing but your talent is what is the thing that did it. All people needs is a little help and wonders will appear.
Thanks for posting this razor and hopefully your road will be an enjoyable journey. Damn, I wish I could do work like that.
Nice job my friend,
turbine712 aka Bill

Thanks Bill
rssss
Ale

I was actually thinking of a couple of things. one was a 3d pantograph, which I hear used to be a popular way of doing small copying operations. but the thing I really had in mind was a grinder thing my gunsmith had. I can lookup at home his old emails (he passed away last year) and try to remember what it was called. but if I remember correctly you put the piece in place, locked down, and then the grinding machine which takes different size wheels, would be brought down and run across it. seems to me the tricky part of making the razor is hand grinding them.

of course where the boys really get seperated from the men is when it comes to the fancy stuff, filework, scale design and execution etc. I bet I could rough shape a blade pretty good, but could never make it look pretty or do anything original with the scales.

Red