Friday, September 24, 2010

V Grind Japanese Kiridashi He-Man Frame Lock




Seen here is the first true V grind model of the Kiridashi blade that I've bought from Japanese Woodworker. Again these are sold as folding craft knives and I won't get into why I like converting them to something a little more user friendly again. Thats covered in the other threads. Anyway, this is done and working but its needing a good break in and its been a bit of a learning curve to work out how to get a decent action since the detent ball in the lock is rolling over hammer marks on this blade compared to the ones I've done in the past that I had not run into this on. Its a bit of a trick to make differentially heat treated blades work in a folder anyway you cut it but I've done it several times now. The hammer marks go back further on these double bevel blades too so that didn't help. Its a bit of a bumpy ride as the ball bearing works a trail on the blade but its smoothing out little by little with use. In an effort to make it less noticed I used a 2mm size ball bearing in the lock after a friend gave me the idea that it worked to use bigger tires when rolling over rough terrain. So on this one as opposed to a 1/16" ball like I normally use I bumped up the size. It has helped some too. I've used double washers on each side to reduce some friction in the action and I am running that dry for the time being to break it in faster.

I figure I'll leave this one for a couple of weeks to see how it goes and if its still not as smooth as I like I may have to cut some deeper more profound lock cuts into the lock to ease up on the pressure the lock exerts on the blade as its rolling open and closed. This is something I hope is not necessary as I really prefer to make the locks as stout as possible with as minimal a lock cut as I can get away with. With this one however, the detent ball will call the shots as to what I do down the road. Otherwise what a blade! I really like the V grind model and I think overall performance will be more in line with what I've grown used to all my life in the normal style edges I carry. I sliced some with the blade last night using it on some hard wood and wow what a great blade! It slices like a dream reminding me of some of the better Scandi grind blades I've used! Of course they all do work well from Japan Wood Worker but this one is particularly satisfying since it is a true V grind as opposed to the one side grind models and I so love the look of the hammer forging marks on both sides of the blade. On this model I did include a low rider clip for right hand tip up carry. Some of these pics came out a bit blurred. Sorry it was getting darker by the second and by the time I got em loaded on the computer well, it was too late to take more and they show the knife well enough to make out the general details. This folder is sold. Thanks for looking.


STR

Wednesday, September 15, 2010

Japanese White Steel Kiridashi Frame Lock





I guess posting those old jobs I did using the Kiridashi white steel blades from Japan Wood Worker got to me the other day because after pulling those old photos up and going over them I could never stop thinking about them. I knew when I pulled those old jobs out that I had done some neat stuff in the past but this one involving the Japan Wood Worker Kiridashi White Steel blade was one of the ones I really thought stood out to me as one of the neater things I got myself into. I guess its just blending the old world craftsmanship and hammer forged blades with modern style folder building that appeals to me but it may also be related to just how well these blades perform. They cut like a dream and can get incredibly sharp. At 64 Rockwell hardness they tend to keep the edge a while too so thats always good. I tried initially to just buy or trade to get the first one I did back from the customer that bought it from me after he confirmed he still had it but he respectfully declined after thinking it over for a couple days and told me he did not wish to let it go. I guess I should be thrilled that a customer loves my work enough to hang on to it rather than sell it, even if its back to me but fortunately for my situation I had other options! :-) Like I'd actually get to keep and use anything of my own for any length of time! :-)

Anyway, this here knife is the last of the three Japan Wood Worker knives I bought and as you may notice looking it over this one is a left hand grind whereas the other two are right hand grind models. All of these traditional craft knives are one side grind blades but don't let that fool you. Just like the Emerson folders which are also chisel grinds in a lot of cases and always on the edge, they sure do cut and come lethal sharp! Japan Wood Worker makes right or left handed ones so I tried some of each when I bought them. This one being the left over that no one was interested in when I was making them, just sat in an ammo can for the last four years or more until today when I got it out and went out to the shop with the factory version of this folder to revamp it into a frame lock folder too! Unlike the other two posted the other day that were built back in 2006 this one is done in titanium slabs on both sides. And instead of a spacer of micarta or G10 in the rear I used fancy stand offs in the rear on this one, and equipped the blade with phosphorus bronze washers, a fancy thumb stud and an early lock up.

This folder weighs in at 3 ounces for weight making it a great choice for everyday carry. The slabs are .095 thickness each side compared to .125 for those first ones and the pivot is 3/16 on this one compared to 1/8" on the last ones. The blade is 3.125" when opened for this Kiridashi folder and it has a closed length of 4 and 3/8". As you can see I equppped this one with a standard style custom made titanium pocket clip for tip up carry rather than a low rider. Its kind of funny I guess that I make a ton of low rider clips for users knives but when it comes to what I use for myself I seem to like the standard style better and since this folder is mine I set it up as I liked. :-) As always you can click any picture here to fully enlarge it for a better zoom in of the details. The sun was going down some when I took these so I hope they show up okay for folks. Check back later because I just learned that Japan Woodworker is now offering these in a true double bevel grind so one side is not flat. I've purchased three of them and plan on another folder conversion in the near future. This one is sold.   Thanks for stopping by.
STR

Tuesday, September 7, 2010

Lockback from a fixed blade









After building that folder for Dirk (Oupa) I got the itch to do another for myself. So speaking with Bob on the phone I bought me a blank from him as well and decided to do my folder in a lockback instead of a frame or liner lock like I did for Dirk. It was a lot of grinding to do this with a blade already hardened let me tell you and I don't recommend it for just anyone particularly if you have to grind out a small part like this rocker arm/lockbar shown in the drawing before I got started. I'm a glutton for punishment at times but it was doable, just not something I'd make a habit of doing a lot you know? Hardened steel work is so time consuming.

Knowing what I know now, if I could pick between working hardened steel and unhardened I'd go unhardened every time! Looking back on this since it took place years ago, I'd have to say that it was really not the smartest way to build a folder. I stick this and these other older jobs here as a memento of past jobs to have a place to store them only. Anyway, its much easier to grind your own blade from bar stock that is not heat treated yet and its far easier to drill holes to install thumb studs or add traction grooves before hardening and thats the way I'd suggest doing it instead of attempting to do this type project with a blank already hardened. Still, many manufacturers grind their blades hard and some do prefer that so its not impossible to work already hardened stock. If I had any sense at all I'd stick with doing things easier but as I always said I never did do things by the book so this here project was no exception. In the end it still put a 'Dozier' folder in my pocket for a lot less money than if I had bought one from Bob that he made so in that respect it was a good thing.

Again, you can follow progress on this old project from start to finish albeit a summarized visual of the actual events that led to this folder in the final picture. The green G10 started out on a sheet and of course I had to design my handle, trace those and cut them out, then mark my holes in the proper spots to drill them out, cut the hardware to size and fit it all together so the lockbar and blade mated together properly and after making a custom titanium spring holder and titanium spring for the locbar/rocker arm assembly, which had to be properly bent to spring it, I had to then make all that come together to work. Obviously I've left all that out or we'd be here all day.

Once I got those parts fitted though, the lock up was rock solid, and it is still like that to this day. The lockbar sinks nice and deep also and in the end the folder was a nice mid type locking folder with good snap to the blade. I stuck some very very thin PB washers in the pivot but not before using my flat platten and a super fine belt to take some of the thickness of the blade down about .005 in thickness. This allowed my washers (snagged from a rebuilt Spyderco I did years ago) to fit better by making the blade slightly thinner than my lock bar. Then I made a custom titanium low rider clip to fit it for tip up carry to complete the package. After carrying this one for a few I finally gave it to my brother in law who has always had a fondness for Bob's D2 blades. He still carries it to this day and truly loves it based on the feedback I've received from him. My guess is that this folder has seen its fair share of white tail deer now that its been out there hunting in West Virginia with my Brother in law. Thanks for looking.
STR

Dozier Semi Skinner Folder!?

My friend Dirk (Oupa) bought this blade directly from Bob Dozier. The blade is fully hard D2 and Dirk's question to me was whether we could do a collaboration of sorts or not if I thought I could turn this fixed blade he bought into a folding knife for him with lots of upsweep. He also wanted it to be a stout liner lock so at his request Bob drop shipped the blade to me and I began mapping out the fixed blade to turn it into a folder. Cutting the blade neatly using a thin kerf cut off disc and my dremmel I managed to get the blade sectioned nice and neat and barely having it get much more than luke warm by taking my dear sweet time. A carbide drill bit in a two flute 1/8" diameter from MSC put a nice neat pivot hole in the blade and after that it was just a matter of finish grinding the contact as I do using my tilt table set at 8 degrees to put a nice 400 grit finish on the blade where the lock will mate to it. You can see more on that technique here at one of my forums if interested. http://knifedogs.com/showthread.php?95-Liner-and-Frame-Lock-Folder-Lock-Contact-My-Way

Dirk asked me to take it to completion minus the handles which he wanted to do himself so I made the frame and left the parts oversized, the screws long for the clip and drilled and threaded it where needed giving him free rein once he got it to either use some of them or cover them up neatly basically giving the completed frame to him. While I've never seen this knife once Dirk completed it I've heard from a few that have that it turned out well. From the looks of it very well. Once again this is an old job but one I've been meaning to document and store in more than one location for old time's sake. Again you can click the pictures to bring them up to a bigger size and you can follow the steps as the project progressed from scrolling up from the first picture to the last. Thanks for looking.
STR