tiistai 8. helmikuuta 2011

DIY / MYOG : Making a more traditional puukko


so as i am participating as assisting teacher at several knife making courses, i "had" to make one puukko to myself, and at the same time teach others, i didnt have opprtunity to forge my own blade as the students were on the anvils but i had this pretty slick, sturdy puukko blade that Mr. Kotavuopio gave me. Its made out of  52100 steel which is used on ball bearing races. Its specailly heat treated so that the edge is pretty damn hard but the spine aint. Blade has some 10 centimeters in it and its pretty heavy as the spine itself starts at thickness off 5 millimeters. The tail is more like on rugged leuku´s.

The next thing was adding a bit of length to the tail so i welded a stainless steel screw to it. I split the end and slipped it over the tang and after a tiny tig welding it was there. I kept the tang cool with wet cloth so the heat treatments wouldnt ruin.

So, the blade was ready and i cut a curly birch block in to about 15 centimeter long pieces in 30 cm radius and with a band saw, i made a bunch of handleblanks for others too. I selected minne and drilled the hole for the tang all the way thru the piece of handle blank. Then i started to file and fit the blade to the handle. I dont know if you already know this but a jigsaw blades and other tiny saw blades are very good tools for the fitting, id say they beat the heck out of files any day.

Then i had the tang starting to perforate the handle pretty well so it was time to look for something, some material to be used in handles ends, we call´em "hela´s". I didnt figure any good source althought i wanted to use antler or cow horn at first but i started to them off .308 rifles brass cartridges since i have bunch of those around.

I carved some coarse molds into cuttlefish mold and then it was time to melt the used brass cartridges to be casted into molds.

I poured a hint of Borax into melting cup of brass and then i cast the stuff into mold and yanked the front part off and it copied pretty well into molds shape,still there was plenty of filing to be done...:)

So it was time to grind,sand and file the brass parts a little,or even more, i dont deny....but the frontal part startted to take its place pretty easily and fitted snugly over blades tang.

Then some rough shaping on the wooden handle that was still a block shaped...

And then more and more, trying to get a nice and useful shape into handle so that it would still fit nicely into brass part as well as into my hand.

The brass piece to be fitted on the tangs end was very heavy and big so i had to shape it pretty much.

It was stiil pretty easy to make the parts fit nicely as the knife could be put in to one piece and then into pieces,thanks to the threaded tang´s extension. It will be gone still,when the knife is all the way ready and i can pound the screw just like a riveted end so it will disappear a the end.

 Slowly its staring to look as puukko of some type. It was slow since i wasnt doing it just by myself, as i had to teach and direct, help others and at the side my own puukko was like a example.

 In any case, its in this point now. I dyed the handle with water thinned leather colour,and let it suck a lot of oil and i secured the fit between handle and blade with mixture of sawdust and epoxy glue. It was nice to really cast the brass parts, instead of using ones bought from any shop as iprefer doing myself more than just putting up bought pieces. The stainless nut part in the end is, as i mentioned,going to disappear as the handle finds it last position and i get the leather spacers filed to good tight fit. Then its just waiting for the sheath to be made and its then good for my use.

Hope you liked this and  found it maybe even useful on your own projects.

8 kommenttia:

Hendrik Morkel kirjoitti...

Really fine looking. SO I can hook up with you some day and make my own puukko with you?!

Perkunas kirjoitti...

why not, sir :)

Anonyymi kirjoitti...

Fantastic job so far. I really like it!


Anonyymi kirjoitti...

Very nice work.

Aro kirjoitti...

Hienoa työtä, kateeksi käy. Jos olisi kunnon työkalut, niin voisi hyvinkin koetella oman puukon rakentamista.

Blogissani on uusi viesti liittyen vanhaan H- Rosellin puukkoon joka kaipaisi ehostusta, sinä olet varmaankin paras asiantuntija ko. aiheessa.

Osaisitko lisätä neuvose puukon suhteen blogiini kommenttiosioon, kiitos!


Fimbulmyrk kirjoitti...

Wow, great work! I want to try casting the fittings sometime soon myself. Thanks for the post, it´s great!

Perkunas kirjoitti...


se on Rosellin perus-eräpuukko, minun milestä hemmetin asiallinen veitsi,ja olis kiva löytää itsekkin moinen metsästä.

Anonyymi kirjoitti...

Szervusz Kés Készítő !

Nagyon tanulságos képek. Köszönöm szépen a bemutatást, és a segítséget. A végeredmény pedig nagyon dekoratív lett.

Olajos János, alias AMA.