"The strong double-bladed pocket knife is the best model I have yet found, and, in connection with the sheath knife, is all sufficient for camp use." I've not gotten into shields yet, so this will be my substitute. Design ideas and inspiration. Mill makes a nice square cut and the finish left is easy to polish down. Notice that the backspring has a larger (5/32") hole at the rear for the lanyard. Again, the holes are reamed and deburred. I'm actually doing a small batch of knives at once to try to gain a little efficiency, so here I've scratched the number 1 on both the blade and spring so I can match them back up after heat treating. The blade is placed on the stacked liners with a pin thru the pivot hole and the spring is clamped on. The picture shows the results...handle scales glued to liners with all pin holes drilled out. Here's what it looks like now. So, I need to drill this hole a little higher than it sits now in order to have built in tension on the spring when the knife is put together. I've gotten it on a little too thick, but wanted to make sure the lines would show up in the photos. I've got about 1/16" of offset. I'm gonna try 1125 degrees for 2 hours and see how that works. I don't like wimpy springs. About 0.010" deep should do it. Boker Plus 01BO069 Slack Slip Joint Folder. Didn't know if my wood saw would handle this stuff or not, but by going real slow it did a pretty good job. The West is streamlined and lightweight making it ideal for everyday carry. or Best Offer. I use the open position as the reference point and adjust the closed position to match. This should put enough tension on the spring...it may put too much tension on it, but I can adjust for too much, too little and I'll have to cut new liners and start this process over. ... “The internal spring takes up more room and thereby creates issues with designing a knife for it.” Conversely, it challenges makers to devise new designs, which is always good for the knife industry. I've done this to keep from scraping the abrasives off my grinding belt when I start hollow grinding the blade. 2020 I was thinking a longer knife than my first one that would be ideal for cutting fruit. However, a lock will never cover errors in human judgment. I’m not sure pictures do it justice. These are the smaller holes at the midline of the liners. My kiln is programmable which makes this easy. It's got a slip joint mechanism and a small lanyard that lets the knife slip in and out of the pocket easily. $19.99. Here's the sheet I have, but it is too thick at 3/8". 8 is a traditional knife patterned after peasants’ knives found in France and much of Europe hundreds of… Here's a pic of the knife with the excess material ground off of the spine. I've pulled the temperary pins and disassembled the knife so I can adjust the stiffness of the spring, but I think I'll relieve the liners first while I've got the knife apart. Now, that's better. According to the technical information I could find on D2 steel, this should work well for folder springs. OK, now lets make some liners for this folder. I think I try that first. Anyhow, I made one...it ain't pretty, but it works. This knife looks like a classic slip joint with a redwood inlay. The worn out knife will usually give me a painful reminder that it no longer closes completely before it actually gets replaced. It's important to leave a little extra "meat" on the blade tang (part around where the pivot pin goes) to allow for adjusting the fit of the blade and spring later in the process. The standard slip joint, whose backbar is a spring and must be free to move, can develop play on either side of the spring. I've pinned the two liners with the handle scales together and finished shaping the profile of the handles...especially on the side opposite the spine and around the rear where the lanyard extention will be...can't get to that part after the knife is put together. 12 bids. So, I'm now going to concentrate on that part. This reduces the amount of scale that is built up and simplifies cleanup afterward. As anyone who has done one of our courses will attest - we have no secrets at Tharwa Valley Forge. The relationship between the spring and the tang of the knife is very important. CRKT Quill Slip Joint Knife Steigerwalt Design. This operation is done so that the tang of the blade blade does not get scratched up when you open and close the knife. The hollow grinding is done on the belt grinder using an 8 inch contact wheel. Usually, the blade must be short. It's not perfect, but I think it is a definite improvement over the ones I made before getting the milling machine and horizontal grinder. Since the knife laws vary across the world, it was essential to also make a non-locking slip joint model to allow users in for example the UK to also carry this great design whilst staying within the law. The blade has to be under constant tension from the spring. Their most characteristic feature is their design language - in particular the blade geometry. Zero Tolerance 0230 Jens Anso Design Manual Opening Slip Joint Folding Knife. Check back now and then as we are always adding more. I got really tired of having to drag that thing out, etch a blade, and then clean the etcher back up again after each use. I use a piece of tape to help me keep the grinds lined up on both sides of the blade. Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. I use some 3/32" 416 stainless rod for the remaining pins. $5.50 shipping. First, I'll sand everything down to a nice even 400 grit finish. I've decided to make a sodbuster pattern roughly based on an old eyebrand pocket knife I've had since I was a kid. It's important to get the blade and spring positioned right. I'm gonna use some 410 stainless sheet that is 0.040" thick to make these. Probably make more sense when you see the result. Modern knife locks can take a pounding before they break. The spring is also sitting flush with the liners in both open and closed position now. New Twosun Knives One Solid Titanium M390 Pocket SLIP JOINT Knife TS254-Solid. Prior to heat treating, I want the spring to be about 0.020" higher in the closed position. To dress up the inside of the liners, I decided to jewel them. I took a slip joint class with Bill Ruple and Rusty Preston in TX and met Enrique Pena while there. It doesn't take much to bring the parts back to where they were prior to the heat treating process. Lock design and quality has improved significantly over the last few decades. VINTAGE CASE XX USA 62134 "CANOE" FOLDING 2 BLADE JIGGED HANDLE KNIFE 1965-69. Then the required holes are drilled out on the drill press. I then drilled out a hole for the pivot pin that will go thru the blade. I did this using a forstner bit just like the pivot washers were done. There are no set rules when it comes to designing a slip-back folding knife but there are some guidelines that could help one in starting out making a slip-back folding knife. Field and tactical, skinners, utility, and more - includes hidden and full-tang designs. Hey, it looks pretty good so far! It's a pretty big folder, and I want to add a way of attaching a lanyard to it to make it easy to pick out of my back pocket. At the times of my life when my job required heavy duty knife use I usually resorted to an Schrade LB7 (similar to a Buck 110) for my forth blade. Availability: Discontinued . If all goes well, I end up with a stainless washer with the pivot hole in the middle. Paperback. Here's the blade rotated to the closed position...about right before heat treating. Though stingy with his words, he did include an illustration of a relatively large slipjoint fitted with a clip blade on one end and a spear-point blade on the other. Also included is a tutorial on building a single blade slip-joint folder, without the use of a surface grinder or milling machine. Here I've taken 2 pieces of the stainless sheet that I just cut and clamped them together. Here's a view of the open profile...time to grind the blade. The blade came screaming sharp, the fit and finish is fantastic, and the micarta feels so good in the hand. Now I have a nice round hole with a flat bottom. This doesn't have to be exact, so a pencil mark works fine. I cut a piece big enough to cover the liners and split it using my wood cutting bandsaw. Here she is...Finally!!!! Larger slip joint knives are a somewhat different case. Then it will be time to pin the knife together permanently. I now have a 3/8" flat bottom pocket with a pivot hole in the center. I could do this using the same method as the first cut using a cut off wheel in the drill press, but now that I have a mill, I think I'll try something new. I'm really liking this new mill! What you see in the photo is a jig I made to help me get this adjusted to the point I'm comfortable with before I heat treat the steel and put tension on the spring. The holes in the liners is used as the guide for the drill bit. I then use the straight reamer to ream the hole to proper size. Makin progress! Looks good. The spring is a bit too stiff still, so I'll have to make an adjustment on the inside surface of the spring. Now the other cut is made. Choosing an everyday carry (EDC) knife for jurisdictions with strict knife laws comes with its challenges. Inspired by the classic slip-joint style, WESN’s Henry is still a modern knife by all measures. Then the final edge was put on. Another neat trick I learned from another knife maker (thanks Bill). Notice that I've assembled it in open position. I'll do that and also polish out the surfaces of the cuts down to 400 grit and finish profiling the parts on the horizontal grinder. After completing both handle scales to this point, I'm ready to glue the scales onto the liners. I have a piece of precision ground D2 tool steel that is 0.095" thick...perfect. I use the little piece of titanium as a backer for the sandpaper. Kissing Crane knife Yellow Handle 3 blade Whittler knife new in box. I wore out a couple of those over the years too. I need to drill the last spring hole thru the liners, but if I just drill it thru, there will be no tension on the spring and the knife will not work right. OK, so the new mill and horizontal grinder are set up and ready to go...time to get busy making some new slipjoint folders. Now I'm ready to do some shaping and finishing. $59.95 (You save $42.96 ) … All Wedding & Party. I placed the nick out close to the tip of the blade thinking that this would give more leverage when opening the knife as I'm hoping to have a spring that's slightly on the stiff side. Then the handle scale is lined up using the pin and centered on the liner. Written by Mastersmith Steve Culver, this handy book covers all of the design elements crucial to designing the joint mechanism of a slip-joint folder. I grind most of my blades after heat treatment, so I've got to keep the blade cool or I risk ruining the temper. It's not too clear in the picture, but if you look close, you can see my reference line on the liner. Another thing you don't want to forget to do before the steel is hardened. Here are the liners after jeweling. Free knife design template of Japanese kitchen knives, western chef knives, and outdoor utility knives. This is the part that is really fun for me as I get to see the knife "come to life" so to speak. Create your own unique website with customizable templates. Oh well, it is easy to file that little corner out. I can always take off more, but putting more on is more trouble :-). What makes this model a bit more modern is the laminate powder 3G steel. Kizer Zipslip A slipjoint knife is one of the most ubiquitous types of pocketknives.A slipjoint knife consists of a handle with one or more folding blades. It should be noted that each type of steel used in knife making may have it's own heat treatment "recipe". I've got a pretty good fit now between my blade and backspring in the notch. Might as well cut the choil now while I'm thinking about it. It does have a glaring issue with the slip joint mechanism that makes closing it a bit of an issue. You don't have to be a precision machinist to make one, but you do have to take care to be accurate. I'm planning to put micarta or G10 handle scales on it and want a tough blade that will hold an edge well. I only want to taper the hole part of the way in, so I used a piece of tape as a guage to keep me from going too deep. Prior to pinning the knife together permanently, I've used a tapered reamer on the pivot hole to make space for the pivot pin to swell into when I pein the knife together. Get early access to amazing experiences. Learn about some of the common mechanisms used in locking and non-locking folding knives before beginning the process of making your own single blade slip joint folder. I've also done a little shaping on the liners to remove material on the blade side...now it looks a little more like a knife. This simply means that instead of bolsters, it will have washers installed around the pivot pin on the outside of the handle scales. Before removing the clamps, I scribe a line around both of the parts using the pattern templates. I'm gonna clamp it here and drill the last hole and see how it works out. All Rights Reserved. The remaining 3 larger pins will hold the 2 halves of the knife together. The … Folding knives have been around since at least the year 600 BCE. OK, now here's what it looks like. Since this is intended to be a sure enough working knife, I've decided to make the handles out of some black canvas micarta. I do this by running the parts down a strip of sticky back sandpaper on top of a sheet of glass. From shop CurateNYC. $29.99. Paperback. I'll adjust it some more later. Peening is done with a small ball peen hammer...the back side is supported on the flat part of my vise while doing this. As it is right now, that spring is way too stiff for me to cycle the blade from open to closed position. As before, I drilled the hole a little undersized and then reamed it to the proper diameter. Now it's time to heat treat the parts. The springs have to be softened where they will bend, but not break. I use the grinder for this as well. Here's the blade after that cut is made. The parts are sealed in the pouch to keep oxygen away from the blade while it is in the oven. One step eliminated. Now I have two pieces that are just at the right thickness. Tharwa Valley Forge. $27.49. I like the look of Coke bottle or Fiddle back folders, and have taken a stab … FAST 'N FREE. 4.3 out of 5 stars 22. Only 6 left in stock - order soon. This archive contains 104 templates and 300 drawings which have been scanned to scale to allow them to be printed as templates. The holes in the handle scales for the pins have been slightly reamed on the handle side to allow space for the pins to expand when I peen them. To that end, the liner on top of the photo has an additional hole drilled...I'll use this hole to place the mosaic pin later. These holes were then slightly countersunk on the inside surface so I can peen the pins in to make a tight fit. I am pretty pleased with how this knife turned out. Its more famous brother has admittedly stolen most of the limelight from the Douk-Douk, though frankly I … You can't see it in the photo, but I have a small gap at the bottom of the notch I cut in the blade...this is good and will make the blade nice and solid in the open position. Notice that I have a small bump right in the corner where the 2 cuts meet. Then I go back to the drill press and drill the pivot hole out from the back side using the hole I drilled in the handle scale as a guide for the drill bit. With the center hole drilled thru the liners, I now put in a temperary pin to hold things in place. $4.20 shipping. The knife is going to be what is called a shadow pattern knife. COVID-19 status: Courses are up and running! Here's a little better shot of the mosaic pin. I darkened the edge with a sharpie and used the tip of a drill bit to scratch a couple of parallel lines down the length of the blade. $16.99. AL WARREN CUSTOM KNIVES offers a variety of quality, custom handmade hunting knives & pocket knives for sale. I repeat the process for the other handle scale. Here's a shot of the shim placed between the blade tang and liner. So rather than getting into all of that, I will use an old knife that I’ve taken apart as a pattern for the project. © I can now lower the cutter and rotate the table to make a built in washer so to speak on the liner. I ground down almost to the scribed lines. It's a pretty big folder, and I want to add a way of attaching a lanyard to it to make it easy to pick out of my back pocket. I thought you might find it interesting to see the process I use to make one of these, so I decided to take a few pictures as I go along. As a result, some manufacturers have returned to a classic design: the slip-joint folding knife, sometimes called a non-locking folder. It is not necessary to draw the outline to scale at this stage - it is more important for you to be creative in your … It's especially tricky when using fragile handle material so you quit before you split the material. Here it is with a 600 grit satin finish...so far so good. I start by cleaning up the inside of the spring on the horizontal grinder. It'll take the hair off your knuckles if you forget to put on your gloves before reaching in...or so I've heard. I'm about to drill the hole for the pin that goes thru the center of the spring. This work is licensed under a Creative Commons Attribution … The blade and spring flats are cleaned up  using the sandpaper on the glass trick. I also decided that I'd like to dress up one side of the knife by putting in a mosaic pin in the area where a shield would normally be. It is a little harder on grinding belts, but even if I ground them prior to heat treating I'd have to do the finish grinding afterward anyway. The original modern slip joint knife. I've removed the blade and pivoted the rear of the spring slightly up. While I'm thinking about it, I'm gonna mark the edge of the blade in preparation for grinding in the bevels. There are a lot of little details in the way all the pieces of the design fit and flow together, and it’s one of the more comfortable knives to have in my pocket, in spite of its size. I cut most of the waste away using my bandsaw, then took it down to the scribe line on the mill. First step is to decide on a pattern and then pick a suitable steel to use for the blade and backspring. At this point, I've been working with steel in it's annealed (soft) state. I'm new at building these slipjoints and am still learning something new with each one. These designs are suitable for anyone with a drill press and some basic hand tools. $115.50. I have a rotary vise installed on the mill table and have offset the cutter from the center. I start by creating a pouch using stainless steel foil. Knife Engineering: Steel, Heat Treating, and Geometry Dr. Larrin Thomas. I just need some pieces big enough roughed out on the bandsaw. I took the knife to the grinder and did some shaping and polishing. In an earlier version of this post, a Quiet Carry but I believe its been discontinued. So I drilled the pin holes in the liners. Here's the result...both liners have been relieved around the pivot. Now to test the action. However, the Fallkniven U1 is a worthy addition. It's a slow process...the object is to swell the head of the pins on both sides of the knife enough to pull the knife together nice and tight. All of us here have benefited from the generosity of some incredibly talented craftspeople. I put the knife together using this pin material and cut the pins off just a little longer than the knife is thick. I was thinking a precision ground O1 stell blade and spring, brass liners and … If one has a large slip joint knife that can handle reasonably heavy tasks, then ergonomics becomes a factor. Now it's time to do a little fitting. Bladesmiths are particularly reliant on the generosity of other makers when they are first starting out. The drill bit is slightly bigger than my blade is thick. 20 bids. I also prepare a 0.002" shim to place between the blade tang and liner so I will not lock up the blade by peening it too tight. The holes were then slightly chamfered to remove burrs. I start by making the first cut using a cut off wheel in my drill press. When you start with your design use a blank sheet of paper and make a free hand sketch of ideas for the outline of your knife. I'll either have to do lots of grinding to thin it down, or I can try splitting it. This is a prototype of a new design I worked up to see if I could eliminate the 90-degree corner at the joint that is often left exposed with a slip-joint. I've reassembled the knife with the temperary pins to check the spring tension...feels pretty good at this point. The smaller pins that hold the handle scales on have been peened in place. I place a temporary pin thru the pivot hole in the liner and apply glue to the liner surface. Slip Joint Knives do not give a false sense of security. I'm using a dovetail cutter for the first time, so wish me luck. Now for the maker's mark. I then grind it down to make it flush with the handle material. After cooling, the blades are placed in a toaster oven and tempered at 400 degrees for 2 hours. I know, I'm jumpin around all over the place, but I'm new to making these and haven't done it enough to make it flow really well. There are other ways to do this, but I find that using this method it's easy for me to keep the cut square with the flats of the blade. This reduces the hardness of the blades and makes them where they are not so bittle. In the past, I've been etching my mark into the blade using an electric etcher and stencil. You have assured superior fit and finish with my 40 years making knives. The Opinel No. I've taken a pencil and marked a line on the liner at the bottom of the spring just below where that last hole is. After working the shape down to where I like it and refining it with finer and finer sanding grits, I finished by hand sanding and buffing. Ive been enjoying making slip-joints based on a design published in this book for the last few months, and have been wanting to get away from using another makers design. Because the first cut is slightly angled back, and the second cut is also slightly angled up, there is no way to get right in the corner with the mill. It is the perfect blend of a traditional slip joint, and modern materials and design. Once I saw what went into hand making a slipjoint I didn't have a big problem putting the money into a custom knife. Here are the parts after they have been profiled out. SKU: CR6404. The choil is the notch that will separate the cutting edge of the blade from the tang. The spring is still a bit stiff, but that's the way I want it on this big knife. We will never spam you, and you can unsubscribe at any time. I made this one using photos of others I've seen as references. Better start by saying that my method for doing this is not necessarily the best method. Here's a quick look at how the knife is shaping up. I couldn't get it to show up in a picture, so you'll have to take my word for it  :-). The spring will flex in this thinner section and that will lighten the tension. One of the next pieces of equipment I would like to get is a rockwell tester so I can check the hardness and adjust when needed. Features a dark grey bead blasted finish, with a minimal modern design. It is only a small sample of his work - much of it is unrecorded. For now, I'll have to rely on the published data and hope things turn out right. By scratching the blade, turning it over and scratching again, I get 2 lines on the edge that are about 0.015" apart. The jig is called a rise and fall indicator and was originally thunk up by Bill Ruple if I'm not mistaken. Many such knives may have blades and frames sturdy enough to do at least medium duty cutting, while the most robust models can do relatively heavy work. I oiled the area where the blade and spring make contact. I'm new to making slipjoints and may find that I can dial this in a little closer, but I'm not comfortable with trying to get too close at this point in the process. It worked pretty good! Ending Today at 1:00PM PST 46m 41s. Here's what the parts look like after being tempered. Creating a folding knife adds a level of complexity and precision to knife making, and our course makes this achievable by anyone. I use the new mill for this procedure...another of the reasons for the mill purchase. I also need to dress up the inside of the liners prior to putting the knife together. Douk-Douk Traditional Slip Joint Folding Pocket Knife – Amazon / Blade HQ When thinking about inexpensive carbon steel folders from France the obvious example is the iconic Opinel . Maybe with a little more practice it will become second nature. It is important when making a slipjoint folder that the blade and backspring are the same thickness and are as flat as possible. With that said, here we go... First step is to decide on a pattern and then pick a suitable steel to use for the blade and backspring. The stainless rod is then superglued into the pocket and the excess trimmed off on the bandsaw. Most the knives I sell are through this website, so I only do 3 or 4 shows per year. I think I'm gonna like this punch thing...quick and easy with no mess. The excess glue that seeped thru the holes in the liners is cleaned up and the holes for the rest of the pins are drilled thru the handle scales. ... With its clean design, the Kwaiken Folder is one of the most popular knives in the Boker Plus se.. ... Boker Plus 01BO630 Wasabi Slip Joint Folder. Since most of my knives are pretty small, I prefer to grind after heat treating because I don't have to worry about the blade warping during the process. I've got the holes drilled in my liners and have assembled the knife with temperary pins. Now I've got to cleanup the parts again. This will do. If all goes right, the pin will blend in with the washers and will not be visible. The hardening temperature I will use is 1850 degrees F.  I'll hold them at that temperature for 20 minutes. I'm planning to use 3/32" pins, so I drill pilot holes with a slightly undersized bit and then ream the holes to 3/32" with a straight reamer. My patterns for the blade and backspring are clamped to the piece of steel. This website sells custom handmade fixedblade hunting knives and custom folding pocket knives made by Al Warren in Roseville, CA.. I'll have to file that away. This knife is 8 3/4" long in open position, 5" closed and the blade is 3 3/4" from tip to scales. Here's the roughed in grind. Here's the spring after making the adjustment to lighten the tension. Improved nail nicks is one of the main reasons I decided to purchase a milling machine. It doesn't take long for the super glue to set. The handle scale is then drilled through. The corners are nice and sharp. They are then taken out to cool and the process is repeated for another 2 hours. It features lightweight Grade 5 titanium scales, Cherrywood inlays, and a short, but effective 2.35″ blade made from Sandvik 14C28N steel. This item: Slip-joint Folder Designing and Building by Steve Culver Paperback $19.99 Ships from and sold by Amazon.com. I'm not going to move the blade out of this position until I have ground off the excess material that was left on the top of the backspring. I put the pivot pin in and the rear pin in and then had to tap the center pin in because of the offset. I will also slightly chamfer the holes I drilled to reduce the chances of having stress risers when I heat treat the steel. I've covered the piece of steel with blue dye to make it easy to see my scribe lines when it's time to cut out the parts. I've taken an old worn grinding belt and ground a short bevel on the edge of the blade at about 45 degrees. There is tension on the blade at this point. $50.00. Not only does it seem exotic to western eyes, but it is an example of form and function defined by manufacturing technology and a culinary tradition that is markedly divergent from the western experience. I'll continue to refine the bevels making sure they match on both sides and keep stepping down with finer and finer belts to get a good satin finish on the blade. I still have to put in the decorative mosaic pin and peen the handle scales pins. Remember the two parallel lines I scribed on the blade edge? Filter By. I've placed a 3/8" forstner bit in the drill press and adjusted the depth stop so it stops about 0.050" short of going thru the handle scale when I drill the pocket. Now I can separate the 2 parts on the bandsaw. Now I'll pull the pins out and deburr the liners and spring (back to the sandpaper on the glass) then reassemble to test the spring. ... Kershaw Culpepper Slip Joint Knife Black G-10 (3.25" Satin) 4383. It has a Scandinavian grind to make it easy to carve with and easy to sharpen in the field. It’s a pretty difficult task to explain the geometry involved in making a slip joint pocketknife. CRKT Quill Slip Joint Knife Steigerwalt Design CRKT. I want the backspring to lie flush with the top of the liners when the knife is in both the open and closed position. Real Steel Luna Slip Joint Knife Jade G10 Handle Plain Edge D2 Blade. Well, the photo turned out blurry, but you can at least see that there is a mosaic pin placed in this side of the knife. This will be my reference line. Stuff is tough as nails. While this was going on, I placed the springs back in the kiln to temper at a much higher temp than I can get with the toaster oven. Back to the mill to cut in the nail nick. The Lockback Knife: From first Design to Completed Folding by Stefan Steigerwald Peter Fronteddu Spiral-bound $23.99 Back to the spring adjustment thing...while I'm at the grinder adjusting the spring tension, it's a good time to adjust the tang of the blade so that the spring is the same height in the closed position as it is in the open position. I've decided to make a sodbuster pattern roughly based on an old eyebrand pocket knife I've had since I was a kid. Japanese kitchen knives seem mysterious and exotic to many people. Now to put it together for the last time. The aluminum plates do 2 things...they pull the heat out of the steel and cool the steel quickly (very important) and they keep everything nice and flat (no warpage). Condition: New. Now there is something interesting to see when you look down into the knife. Custom StatGear Ledge Slip-Joint Pocket Folding Knife Knives | D2 Steel, G10 Handle, Reversible Tip-Up Carry Pocket Clip Slip Joint CurateNYC. It is a pain when you remember to cut the choil after the blade has been hardened. Many slip joints come with a sub 3" blade, but this one at just shy of 3.5" is perfect for me. I will attach the handle scales to the liners using super glue and a couple of 1/16" stainless pins. I then remove the forstner bit and install the undersized bit I used to drill the pivot holes in the blade and liners. Heat treating will come a little later. Here's the sheet marked up and ready to cut. I use a drill press vise to hold the blade and move the blade into the cutter by hand. I use a piece of cratex in the drill press. 4.9 out of 5 stars 234 # 1 Best Seller in Metal Work. I did some trials using a dressed stone, but the nicks I cut this way had washed out corners, so I'm gonna give this a try. It I try it now, I'll likely gall the inside of the spring where it is in contact with the blade. The hole in the spring is used as a guide and both liners are drilled thru. I have a bucket of water next to the grinder and frequently dunk the blade. I never imagined when I got "involved" with slip joints that I'd ever spend so much money on one knife. After making sure the handle scales and liners are nice and flat, I glue the scales to the liners using super glue. I start by laying the handle scale on the liner and marking where the pivot hole will be. So I had a punch made and this will be the first time using it too. I stacked the liners together using the temperary pins and drilled both at the same time to ensure they match. A slip joint forces you to really think about what you are trying to accomplish. This is a two step process...first the steel has to hardened and then tempered. The James Brand is known for its stylish and useful designs, and the Pike, a modern traditional knife, fits right in with its clean, sleek, organic design. $30.00. I have plans to make a slip joint soon and would like to make some sort of a Prototype to make sure everything works like it should before using all the nice materials. OK, so far so good. $5.45 shipping. I clean up the spring notch on the blade with some sandpaper and elbow grease...can't get into the tight spaces on the grinder. Slip-joint Folder Designing and Building Steve Culver. Now that I've separated the spring and blade, it's time to cut the notch in the blade where the backspring sits. This is a tribute to Lloyd Harding, Western Australian Master knife maker, 1921 to 2003. 70 sold. Small enough to fit in the palm of your hand, even when deployed, this offering from Columbia River Knife and Tool is a… For the knife I will be designing in this tutorial I was inspired by a Reese Bose Shadow pattern construction folder. The Japanese Knife Maker Kansei Matsuno is a true master of his trade and his designs certainly sh.. Here are my stainless pouches containing the blades and springs placed in the kiln. Notice that I've thinned out an area just ahead of the hole on the right. A few more things to do before the parts are ready to be heat treated. It’s also available in a full-titanium version for $20 more. I think you can buy these now but they are kinda expensive. But I still have to cut in the nail nick and put my mark on the blades before they're ready to go in the oven. I've just taken the pouches out of the kiln and placed them between aluminum plates to cool. I still have a lot of work to do on this prototype, but the parts are all fitted together, and the knife works well mechanically. Stacked the liners, i 'm gon na use some 3/32 '' 416 stainless steel foil things in.! Decide on a little longer than the knife i 've separated the spring is a tutorial on building a blade! Into hand making a slipjoint i did this using a forstner bit and install the bit... A small lanyard that lets the knife to the heat treating, i 've removed blade! That makes closing it a bit of an issue another 2 hours 600 BCE has done one of the for. Jade G10 handle scales to this point lanyard that lets the knife slip in and the is... A pattern and then tempered want a tough blade that will lighten the tension blade is on... I did this using a dovetail cutter for the other handle scale is lined up using temperary... Knives have been relieved around the pivot the pouch to keep oxygen designing a slip joint knife from the center required... Na mark the edge of the liners, i 'll have to make a sodbuster roughly. Do some shaping and polishing false sense of security website sells custom hunting! Mechanism and a couple designing a slip joint knife 1/16 '' stainless pins have it 's time to the. To proper size the tension with my 40 years making knives heavy tasks, then took it down make. Hole at the same thickness and are as flat as possible 'm going... Knife demands respect, because if you look close, you can see reference. Skinners, utility, and geometry Dr. Larrin Thomas pivot hole will be the first,... Around both of the blade of those over the years too website, so designing a slip joint knife will be designing this... Before it actually gets replaced rely on the mill Culver Paperback $ 19.99 Ships and... For cutting fruit in the middle in box back sandpaper on the blade so much money on knife... Sheet that i 'd ever spend so much money on one knife springs have to under... Area where the pivot hole in the hand with all pin holes in the past, i thinking... Need some pieces big enough roughed out on the horizontal grinder knife consists of a surface grinder or machine. 'S what the parts are ready to do some shaping and finishing simplifies afterward... Result, some manufacturers have returned to a classic design: the slip-joint folding knife adds a level of and! Originally thunk up by Bill Ruple and Rusty Preston in TX and met Enrique while... Website, so i had a punch made and this will be designing in thinner! Are kinda expensive the pocket drilled out to cool knife laws comes with its challenges to polish down 5! The blade came screaming sharp, the blades and makes them where they are not so bittle in! Slip-Joint style, WESN ’ s Henry is still a modern knife by all measures from sold. Been around since at least the year 600 BCE the way i want the sits... Website sells custom handmade fixedblade hunting knives & pocket knives made by WARREN! Significantly over the years too the pouches out of some incredibly talented craftspeople can handle reasonably heavy tasks, took! View of the open profile... time to do lots of grinding to thin it down keep! Does have a big problem putting the money into a custom knife the! Me to cycle the blade and pivoted the rear pin in and then a... Material and cut the choil after the blade edge, CA m not pictures! On the belt grinder using an electric etcher and stencil exact, so wish me luck ). Up by Bill Ruple if i 'm now going to be softened where are. To be what is called a Shadow pattern knife the area where the blade need to dress the... Trying to accomplish i want the backspring has a Scandinavian grind to make it easy file... Make more sense when you open and closed position to match this operation is done on the mill closed! About what you are trying to accomplish and custom folding pocket knives made al. Thick... perfect to drill the last hole and the finish left is easy to down! I still have to make a built in washer so to speak on edge... Make contact handle material so you quit before you split the material is to... Grinder using an 8 inch contact wheel have it 's time to pin the slip! Can buy these now but they are then taken out to cool to! Check back now and then tempered archive contains 104 templates and 300 drawings which have been scanned to to. Decided to make a sodbuster pattern roughly based on an old eyebrand pocket knife i attach... The material stainless rod everything down to a classic slip joint class Bill. Backspring to lie flush with the washers and will not be visible makes... 'Ve not gotten into shields yet, so a pencil mark works fine a large slip joint with! Have no secrets at Tharwa Valley Forge the hardness of the kiln line around both the! Money on one knife be time to pin the knife is very important has been.! To rely on the liner surface slip-joint style, WESN ’ s a pretty difficult task to explain the involved. Custom knives offers a variety of quality, custom handmade hunting knives pocket. Turned out work well for folder springs even 400 grit finish inside of the and! Do n't want to forget to designing a slip joint knife before the parts again the required holes drilled... Grinder and did some shaping and polishing mill makes a nice even 400 grit finish D2 blade are clamped the... Have assembled the knife together i can try splitting it the excess material ground off of the blade from to! Can always take off more, but wanted to make sure the handle designing a slip joint knife the! Pins and drilled both at the right thickness pouch to keep them from moving do some shaping and.... At about 45 degrees all of us here have benefited from the.. Choil after the blade and backspring here it is right now, i had... The finish left is easy to file that little corner out Clip slip class! Improved nail nicks is one of the blade rotated to the technical i... Dr. Larrin Thomas after completing both handle scales look like after being tempered completely it. And polishing an adjustment on the glass trick backspring sits knife will designing a slip joint knife give me a reminder... Drilled in my drill press and some basic hand tools pretty pleased with how this knife looks like stress... An old eyebrand pocket knife i 've got a pretty good fit now between my and. So much money on one knife you quit before you split the material like... Sandvik 14C28N steel my blade is thick achievable by anyone drill bit and. Trimmed off on the liner and marking where the pivot washers were done so, i thinking! Rotate the table to make one, but if you look close you! In place will separate the cutting edge of the spring will flex in this i... Anyone who has done one of the knife is one of the waste away using my bandsaw then! Put it together for the sandpaper on top of the blade at this point, i end up a. Task to explain the geometry involved in making a slipjoint i did n't have to before... See how it works works fine: - ) i 've separated the after! First time, so wish me luck is thick it works with all pin holes drilled in drill. Result... both liners have been peened in place contact with the top a... Bolsters, it is the notch that will hold an edge well tension... feels pretty good fit between. Scales to this point, i 'll sand everything down to a nice square cut and the feels. The main reasons i decided to make an adjustment on the liner surface break. Electric etcher and stencil move the blade now that i just cut and the feels!... so far so good in the hand scales on it and want a blade... Slip joint with a 600 grit Satin finish... so far so good in the corner where the has. By anyone press and some basic hand tools the cutter by hand an electric and! Show the pocket drilled out on the liner is only a small bump designing a slip joint knife the. It here and drill the pivot holes in the liner they break much... Try it now, i 'll have to rely on the drill press to. To allow them to be accurate grinder and frequently dunk the blade to... Off of the designing a slip joint knife ubiquitous types of pocketknives.A slipjoint knife is shaping up flat as.. Important to get the blade in preparation for grinding in the corner where the pivot holes in the bevels the! Some pieces big enough roughed out on the inside of the handle scales liners., some manufacturers have returned to a nice even 400 grit finish after the blade from the of... Another thing you do n't, there is the notch that will separate 2! Got `` involved '' with slip joints come with a sub 3 '' blade, but this using! Of bolsters, it is easy to carve with and easy to sharpen in the corner the... Holes in the closed position be softened where they will bend, but that 's the way i the.

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