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Making and Using a Sen..


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Long time ago I started out with files, sandpaper, grinding wheel, old forge and homemade tools..

Bought a bunch of stuff that would fill a machine shop then decided to find my 'higher' self.

I went back to files, sandpaper, grinding wheel, old forge and homemade tools...

Life is truly a circle.. :P

 

Anyway, I degress.. :D

 

I saw on this site a thing called a 'sen'..

I never heard of one but it was on my 'to do' list as soon as I did the other 'to do' stuff..

 

I made one looking at the pics here out of some 1080 stuff I had.

I used a machinists square to ensure the edge was straight..

I just used some 1 1/4" closet rod as handles..nothing fancy..

 

Just did the standard harden thing then tempered to a medium yellow..I call it 'chisel' color..some just call it hard.. :lol:

 

I decided to try it out on a Tanto I had forged last week.

Something bigger would probably be a better test, but for 'Research and Development'. it'll have to do..

 

After taking the scale off I put it in the knife vice, took a deep breath with anticipation and started 'draw knifing action..'

 

After about 50 strokes..nada..nothing..MmMmMmMmMm... :(

Ok Josh..someone on an Island been using this thing for about 8oo years or so..

Has to be a trick to it.. :lol:

 

Ok..the metal is annealed..the sen edge is hardened..edge at a 45 degrees...

 

Must be techinique..or lack thereof... :lol:

 

I applied some 'Dykum' layout fluid to see my progress..(or lack of..)

 

Tryed it again and discovered that the way I held it; it 'bit'..

Cool..

Now I see little bits of metal and the Dycum is disappearing...

More DYCUM!!!!

 

After awhile, I got used to the 'angle' and how to hold it..

I even got a few little curls about 3/8"...

 

The Dycum is going away like crazy...

 

After a couple of breaks..(and more Dycum... :lol: )

I got the hang of it..

Matter of fact..

If you don't watch it you can get carried away 'draw knifeing' and putting Dycum everywhere..you'll shave more than you want.. :P

 

It also makes stuff flat..real flat.. :lol:

 

This thing is better than a file.. :lol:

It's kind of fun too.

 

Anyway..success!!

 

This sen is a really useful tool and I think after I get more practice with it, will use it more and more...

I'm going to make a few more of different sizes..

 

Anyway, thanks for reading..

And thanks for the info on this site..

 

Take care all..

 

Josh

Edited by A Flor
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Magic Marker is way cheaper than Dykem. Quicker and less messy, too. I would save the Dykem for layout and things where you need it to stay on a long time. Sounds like you are tearing yours off pretty fast.

 

Otherwise, congratulations on your successes. I need to make me one of these!

 

John

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Magic Marker is way cheaper than Dykem. Quicker and less messy, too. I would save the Dykem for layout and things where you need it to stay on a long time. Sounds like you are tearing yours off pretty fast.

 

Otherwise, congratulations on your successes. I need to make me one of these!

 

John

 

Hi John..

I'll try Magic Marker.

Thanks for the tip..

I was practicing with the sen more and and am finding it very useful.

I have a few projects that involves castings for a homemade horizonal mill. The ways have to be scrapped.

I think this would be the cat's meow for such a project.

Again, thanks for the tip.

Josh

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