A crossover design... for a Puukko

 This is something I have in the works at the moment with some thoughts on knife design. The lecture on Puukko design by Anssi Ruusuvuori had my mind racing, and having looked at some modern Puukko designs I find they bear a striking resemblance to Japanese Tanto or Aikuchi designs.

These characteristics are mainly the simple handle and the diamond shape of the blade. Differences include the lack of a Habaki and the rarely upswept point of the blade with Puukko designs.

I forged the blade from some Wootz steel I found in the woods... 110mmx5-2mm blade, selective temper, for technical data.

The grind is "hon zukuri", convex to zero, not that clean, to be quite honest, but I lack experience with a belt grinder. Next time I´ll stick to my trusty files! :-)

For the handle I adapted a shape from the Novgorod knife finds with an octagonal shape from bog oak. This has quite an interesting history. A loose acquaintance of mine and the magic troll´s we meet at re-enactment fairs from time to time had the wood for cheap. The corporation he worked for was being restored, and under the foundations of the building they found an old house from medieval times. The wood was conserved in the soil and was salvaged by him-he had made entire stools from bog oak!

The design is a bit dark to my liking, so I guess I´ll do some fittings from silver or bronze for´t. As is, it´s really sharp and well - balanced.




 

New bushcraft whittler in the making

 So far - so good, this is the new whittler for the woods. It´s made from ancient (150years plus) leaf spring steel I found in the woods, and bog oak from a coalmine in the Muttental, Witten, an ancient coalmining area. It has a rich burgundy colour due to lying submerged in water which was rich with iron oxide for more than a hundred years. I put it together with mosaic pins and a lanyard hole. The blade is 90x3,8mm with a selective temper, the hardness is about 58 HRC. It has a high convex bevel. The balance point is right on the index finger, making for a light and lively knife in your hand. The handle is a bit short, but I had to compromise this, because it shall ride in a pocket via clipper sheath.

Still a lot of polishing work and then it´s off for the etch.

Hope that brings out the pattern of the steel...;-) my other knives from this steel show a strange scaly pattern. I find it more interesting if a blade has a bit of a structure.

That little monster will get a clipper sheath to ride in a pocket or on the waistband of some baggy, comfy pants I love for being in the woods.

I find it fascinating to go to the edges (pun intended;-)) of knife design, and in this case it is experimenting with the relation between lightness, comfortable carrying and serviceable length. The knife certainly is not a big chopper, but is designed to be a little-everyday-task and whittling knife and a companion knife for a set.

New bushcraft knife from salvaged steel and wood

 This is a new knife project that is almost entirely courtesy of the woods and the deep earth; it is forged out of ancient spring steel with a carbon content of roundabout 0,75-0,9%, and presumeably nothing else. How funny this is if you are accustomed to modern spring steel with its relatively coarse (yet normally fine enough) grain, is illustrated by the story of its making. When I first tempered the blade I treated it quite conservatively, as I always do. If you don´t overdo it, it´s even better for the blade if you quench and normalize it one time more. It turned out soft, or so I thought. Knives from this old steel always tend to feel fluffy while they actually are not. Okay, I thought, there´s enough carbon in it, so I lost a bit of a patience and treated it like "bam", not quite gently. Culprit is, it was too brittle, so when I tested it, the tip broke off. It then sat in my drawer for a while until I thought, well, there´s still enough of it left, make it work.

At a recent hammer - In at Kai´s (by the way, thank you again, bro!), I reworked the blade and did some heating the blade. I simply wrapped a wet rug around the handle and heated the blade until it showed a golden hue. Then I ground the edge line and spine line down a bit and redid the edge bevel, and here it comes.

Blurry pic, I know... but you can see there´s a hollow forged in for balance. The blade now comes in at 90 mm. The handle is made from ancient bog oak from an ancient mine in the Muttental and is some 150 years old, put on with modern mosaic pins. The steel is approximately 100 years old. I like the fact that all materials were given by the woods and earth which will be its natural habitat.

I will make a clipper sheath for it, and it´ll be ready to rumble...;-)

On the bench these days... Wootz / Bulat-blades from steel I found in the woods

 I can tell you, I nearly fell on my south, when I learned the "crap steel" I found in the woods actually was refined Wootz! In the etch you can see the characteristical carbide distribution...Click here for a scientific article on Wootz / Bulat / Pulad steel.

 Even if it were not this kind of steel, there´s be no harm done, for it makes for a blade that wickedly sharp and holds an edge very well. Okay, so it got some dents, when I slammed it full bore into an iron rod, especially to the rear, where it did not hit the tempering concoction fast enough, but no harm done... when´s the last time you used a knife to chop through iron rods?;-)

 I fitted a stag antler handle that´s currently being tanned.

 The spine´s rather thick at 5mm, the blade´s 95 mm long. I love the Kopis design, for it makes for a smooth cutting motion!

 And my hadseax is there, finally, and talk of being snobbish, the damascus is of ancient file steel and Wootz steel... as I have learned now. It is wickedly sharp, flexible and boy, I simply love it.

 If you look closely you can see hints of the wootz structure in the layers.

 Okay, I have to remove that glue;-)!!!

The blade´s 105 mm long and 3,2 mm thick, has a high convex bevel with a very slight curve. The handle is bog oak from an old mine with a lovely burgundy colour. Fitting and bolster are brass, the white piece is reindeer antler that will see some carving. Watch this space, I am back...!(that a threat?);-)

Damascus Iscian knife with a dangler neck sheath

I made this knife after a ritual knife pattern I found attractive. It follows the lines of an Athamen / iscian knife. The blade is forged from Zwissler damascus out of 15N20 and 1.2842. The handle is made from bog oak that lay submerged under the mud of an old coalmine in the Muttental, resulting in a very rare bloodred colour. Mounted with copper and brass, the blade is 90 mm long and 2,5 mm thick, resulting in a very slicey feel. The bevel is convex, the tempering selective, as usual. I like it and use it as an EDC and as a knife that means something...;-).