Thread: 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.








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

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

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!

Originally Posted by Proraso Man

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

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.

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.

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...

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.

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