Fews questions

[KnifeTest]

Hi alls,


Firstly if my questions are stupids or already posted here please don't blame me


1/ How to make a serrated blade on the plain edge to obtain a combo edge ( semi serrated edge ) ? Can I make it my self ? With what tools ? Otherwise who can do it ?

2/ What do you thing about the non-strait edge ? Do you already use it ? Pro ? Cons ?

3/ I maked some new material by my self, it's like a plastic material, quite hard, how can I test it seriously ( I mean what is the method to follow to produce something good enough to make a handle ) ?. May be this material is already exist in the market, discovered by the industry but for me, I found this just by my self. I'm not a professional.


Any advice would be gladly appreciated

Thanks

 

[AwP]

Your questions are fairly broad, so they're hard to answer fully, but I'll give it a shot.

1/ How to make a serrated blade on the plain edge to obtain a combo edge ( semi serrated edge ) ? Can I make it my self ? With what tools ? Otherwise who can do it ?

You can do this yourself with either small hand files and sandpaper on wooden forms, or with a powered tool like a dremmel. It shouldn't be hard to do, though it'll be pretty hard to do it so it actually looks good.

2/ What do you thing about the non-strait edge ? Do you already use it ? Pro ? Cons ?

I'm not sure what you mean by non-strait. Do you mean serrated, or a curved edge, or something else I'm not thinking of? If you mean serrated then I personally don't use it on knives I make. Pros are that it does ripping cuts better (rope, meat). Cons are that it's more likely to get hung up, doesn't do well on some materials, and makes a messier cut. You can just sharpen a plain edge with a rough stone which makes microserrations, which give the benifit of real serrations with less of the down side. If you mean a curved edge, pros are for slicers a curved edge is good because the curve gives more length to the edge without lengthing the whole blade, and it is better at slicing cuts. The cons are that the more it curves, the less good it tends to be for any thrusting type action, there's compromises on point types to minimize this though.

3/ I maked some new material by my self, it's like a plastic material, quite hard, how can I test it seriously ( I mean what is the method to follow to produce something good enough to make a handle ) ?. May be this material is already exist in the market, discovered by the industry but for me, I found this just by my self. I'm not a professional.

How strong it needs to be depends on the use it'll be used for, so there really isn't a right answer for this. For a working knife it should be very strong, but doesn't need to be very pretty(think micarta). For an art knife the opposite is true(think fossil ivory), with a range of other materials inbetween. Best way to test I think would be to make a test knife with your new material, and a test knife with some other material that you think yours should perform well against concidering the purpose it's intended for. Then give both knives rougher treatment then they're expected to recieve, how much rougher again depending on intended purpose. For a working knife I'd probably tape up the blade or dull it then just whack everything in sight with both handles to see if they break, put them in the freezer and maybe some boiling water, basically torture the handles equally until one of them breaks. Even if the new handle material breaks first if it took an amazing amount of abuse first then it should be fine. For fancy materials on an art knife I probably wouldn't do much more then squeeze the handle real tight and try to jiggle it around some, maybe tap it with some wood or something else that won't ding the material.

 

[KnifeTest]

for your advice