Even if this is just your own personal opinion, RESPECT YOUR FELLOW MEMBERS.' When pulled back, the liner lock can easily be pushed back to close the knife. All SRM blades are treated with fine heating process and special cryogenic treatment to be better on edge retention, hardness, toughness and corrosion resistent. Measure the width and length of the handle that you have designed. The DDR3-RC folding knife kit makes a fantastic personal pocket knife with multiple blade options. Determine point S just in front of the liner on the blade. [7] This was accomplished by removing the weak back spring and adding a heat-treated stop pin to align the blade in the open position. New Damascus Pocket Knife Custom Handmade Damascus Steel Folding Liner Lock Knife with Sheep Horn Handle 940 $ 65.00 $ 55.00. When titanium is used for the liners, remember that titanium and steel do not work well together — particularly when moving against each other under pressure. Full contact between the blade and spring face is not recommended as this could cause the blade to rock up and down. Civivi Asticus Folding Pocket Knife, Utility Knife with Liner Lock,Ball Bearing Pivot, G10 Handle with Deep Carry Pocket Clip Everyday Carry Knife C2002D Visit the Civivi Store. This laguiole pocket knife has a very secure opening mechanism (liner lock). The liner lock getting jammed is a sign of a crappy knife. The blades are made of Böhler steel, handles or scales made of plum wood. Damascus Folding Knife Custom Handmade Damascus Steel Pocket Knife with Sheep Horn Handle … Written on Sunday, 06 September 2015 14:00, From the pivot to the locking bar's front corner ("c" in the sketch) is 28% of the width of the handle = 6.16 mm. Just like the other types of jam, once opened, the blade is self-blocking. Liner Lock knife made in Solingen, Germany. Cut out the complete blade section from one of the photocopies and a complete handle section from the other. This is vitally important because many measurements that you still have to make will originate from the pivot. £79.95 Quick View. [8][10], To release the lock, the user presses the lock bar back toward the handle side, at which time the blade is free to close. That should help. In the closed position the lock bar (leaf spring) rests alongside the handle and the blade. Once you have drawn a design you are satisfied with your design, make an accurate drawing of the handle to scale. Transfer point A as a radius to approximately where the tip of the blade will be in the open position. Add to cart / Details. Get it as soon as Tue, Dec 1. Quickview More Details. Whether it is one of our own, impeccably made liner lock knives or any other listed we have "cherry picked" some of the best on the market. With the "frame lock," the frame rather than the liner acts like the leaf spring/lock bar. Linerlock mechanisms are most commonly composed of titanium alloy or steel. Locating this ball detent is essential for the correct operation of the LINER-LOCK. Features: The liner lock is the type of lock that can attract both of knife beginner and professional. To provide a lock with maximum strength, the spring on the liner should engage the blade as far below the centre line of the pivot as possible. Use the transparent film to open and close the blade. The shorter the spring, the greater the force will be that is applied to the lock. That the bottom part of blade is not protruding, That the tip of the blade is aligned with point A, That the cutting edge clears the spacing bushes. It has an ambidextrous thumb hole, thumb ramp jimping, and an index flipper. Liner Lock Knives. View Cart. Locating the ball bearing within the area described on the spring will prevent it from running off the blade when opening and closing the knife. Lay a piece of transparent film over the entire knife and draw the blade on this film. Have thoughts or ideas??? These in particular are the knife reviews we've done on liner lock knives. Drill out the pivot holes on both the blade and the handle patterns and assemble them with a try pin. But when the safety switch is pushed forward, it acts as an extra lock ensuring the linerlock can not be used to close the knife, making the folding knife a virtual fixed-blade tool. Its black and grey aluminum handle is designed with a strap cutter, glass breaking tool and a pocket clip. The modern Linerlock traces its lineage to the late 19th century, but in the 1980s the design was improved by American custom knifemaker Michael Walker. Add to cart / Details. This is the only way to earn the quality mark "made in Solingen/Germany". 4.7 out of 5 stars 37 ratings. We have done it for many years for others, … Find out the Laguiole Liner Lock pocket knife. Open and close the blade — if it works sucessfully this is your template. Exclusive distributor in France of Citadel and Kizlyar Supreme brands, we offer a … The washers stand the blade away from the handle plates and allow for easy cleaning of the joint. CRKT CEO EDC Folding Pocket Knife: Low Profile Gentleman's Knife, Everyday Carry, Satin Blade, IKBS Ball Bearing Pivot, Liner Lock, Glass Reinforced Fiber Handle, Deep Carry Pocket Clip 7096. There is no inherent portion of the LINER-LOCK system which secures the blade in the closed position. Kershaw Knives uses "a pin-and-dimple lock" on a knife designed by custom knifemaker RJ Martin called the "Nerve" to keep the blade closed.[11]. The Smith & Wesson® Liner Lock Folding Knife is made from a high carbon stainless steel and features a partially serrated drop point blade. Position the holes for all the fastening screws that you will need for the handle slabs, bolsters, and bushes/spacers. If the blade is to lay flush with the handle sides, the spring must be recessed into the handle plate to allow for the protrusion of the ball bearing. It is now time to transfer the drawing from the two dimensional representation to a three-dimensional object. We have hundreds of pocket and lock knives to fit any budget. This excess will help you to align and fit the blade. I'm not much of a locking blade person, but I've come to appreciate lock backs for their ease to open, use, then close, and with my the way my hands are and I appreciate that characteristic. Linerlock knives have been around since the late 19th century. Please keep in mind that this is only one way out of very many ways to accomplish the same thing. [7] Walker added a detent ball to hold the blade in the closed position using the same spring force from the liner. Take a look through, and if there is a knife you'd like a review of isn't up on this site yet, either comment on a post or contact us to let us know. The blade can be any length you choose provided that it fits within the handle - it is preferable though to rather opt for the maximum blade length that the handle would allow. Sort By 43 Products Sort Quickview More Details. Cinderella CPBL120 Vinyl Wedge Bead Lock .120 Thick … The centre of the pivot is approximately 55% of the width of the handle from the top of the liner, and approximately 40 to 45% of the width of the handle from the front of the liner: The next step is to determine the position and length of the locking bar: The length of the spring is important but not critical to the functioning of the system. For this reason a hardened steel ball bearing is positioned in the spring or lock bar to engage a detent drilled into the blade tang. The top of the back part of your blade should be 0.5 mm longer than the actual size and the bottom of the back part or the locking part should be 2.0 mm longer than the actual size. Determine the position of the pivot point. [9] As the lock on the original electrician's knife was mostly to hold a screwdriver blade open (the knife blade, itself was secured by a slip joint method), Walker's refinements prevented the knife blade from closing on the user's hand and converted it into a true lock. Another variation, known as the inset Linerlock has the leaf spring embedded into the plastic scales of the handle, technically forgoing a metal liner. I tend to pass my knife to coworkers who need it and with the increasing number of … The lock is self-adjusting for wear. Alternatively washers may be used as spacers between the blade and the handle to provide for this spacing. Keep in mind that the blade must always be shorter than the handle. You want to bend it so that if the knife were assembled, the lock is being pushed towards the center. The length of the spring is important but not critical to the functioning of the system. Let me know. It is not necessary to draw the outline to scale at this stage - it is more important for you to be creative in your design. It is topped off with a lanyard hole, deep-carry pocket clip, buttery-smooth flipper action, and a liner lock for solid lock up. [9] In an interview with Blade in 1988, Walker stated, “This long leaf-spring effect cuts down on stress on the locking mechanism". Fifty times the thickness of the liner 50 x 1.2 mm = 60 mm. I.e. A Linerlock is a folding knife with a side-spring lock that can be opened and closed with one hand without repositioning the knife in the hand. Also check for side to side blade play when locked open and if possible (i.e. To disengage a liner lock, you have to use your thumb to push the spring bar "down" (towards the pocket clip in the example knife shown above) so that it clears contact from the butt of the blade. Then cut out the profiles on a band saw. The further below this line the spring would go, the stronger the lock up will be. It seems to me that you’re getting a lot of knife for $19.99 and as is usual, we will close with the specs. As a result, this Laguiole pocket knife has excellent cutting performance and easy manual sharpening. Other options New from $38.10. This is where the run-out (grind line) will start and the stop-pin (the pin that stops the blade in the open position) will be in the closed position. If the liner engages very late it can slide off of the tang and the blade can close on your hand. The Linerlock is a locking mechanism for folding pocket knives. The location of the ball bearing is determined by the dimensions of the lower radius or edge of the blade's tang. A blocking system, or lock, ensures that a pocket knife does not close when you use it. Liner lock. We do quite a number of knife reviews on this blog, many of which are EDC knives/pocket knives and folders.. The ball should project about 0.3 mm above the spring. I have only met Michael Walker less than a handful of times, so there is no agenda there. That flat surface to surface is not the way a liner lock stays open or even helps to allow it to close. Make a couple of photocopies so you will not have to cut up your original drawings. Nobody is denying that a liner lock type mechanism existed prior to 1980, only that said mechanism was not designed for locking a blade into place and would be totally unsuitable for that role without Walker's improvements. Press a needle on the pivot position and close the blade until the tip rests on the point A. ; All the blades of these Laguiole pocket knives are made from high quality X50CrMoV15 steel (0.50% carbon, 15% chromium, 1% molybdenum and vanadium). This lets you use your index finger to push the blade just enough so that it keeps the bar pushed down so you can remove your thumb from the blade path, then continue to safely close … The ball bearing circle and hole is not visible from the outside. One example would be the frame lock, sometimes called the Reeve Integral Lock and used on the Sebenza. The lock with the least wear currently is a tri-ad lock. As such it you can safely use it without compromising your fingers. I have a chinese made Spyderco ambitious that has seen a lot of use and the liner lock was wearing out to the point where I had to adjust, bent the liner to securely engage the tang of the knife. The resulting knife is modest, ergonomic, and extraordinary functional. After 1923 when the patent expired, it was used by other manufacturers such as in the common military and lineman's issue two-blade electrician’s knife; the Camillus TL-29 for the locking screwdriver-stripper blade, until 2007 when the Camillus Cutlery Company went out of business. Now, with your lock bar released, bend the lock bar out by securing the back of the liner, and pushing the lock down. However, there are so many different locking systems that it might be useful to see which you can choose from and how they work. [7][8], Linerlock mechanisms are most commonly composed of titanium alloy or steel. [5][6] Walker's improvement to the design was to facilitate true one handed opening of the knife. 4.6 out of 5 stars 2,439. Details & FREE Returns Return this item for free. The locking bar width is 30% of the width of the handle = 6.6 mm; The length of the locking bar is at least 60% of the length of the handle or longer = 57.6 or; Fifty times the thickness of the liner 50 x 1.2 mm = 60 mm. This model comes standard with both blades in one knife kit, tactical and recurve. You usually have to push to around 5 inches, but start small. This will utilize the force of the bent spring to hold the blade in the closed position. We have every day carry knives, spring assisted and lock knives of all sizes and styles, you are sure to find your perfect pocket knife at knife … [8] The linerlock's locking side liner is split from the top toward the bottom, similar to an automotive leaf spring (also called a lock bar) that butts up against the tang of the blade to prevent the blade from closing. how to go about making a liner locking folding knife. This liner lock folding knife kit is called the "DDR3-RC". Shims or washers also avoid unsightly scratches on the blade. The pre-hardened tactical and recurve blades are precision fit to the lock and are expertly sharpened right out of the box. (Have you actually ever seen or used an electrician's knife?) You know the lock has been bent enough when it rests a bit further out than the thickness of the blade. Draw the blade, not exceeding this radius line, for this will be the maximum length that your handle can accommodate. Push it out 1 inch, then 2, and so on. What works for me may not work for you. Home / Knives & Tools / Folding Knives / Locking Knives. A handle of 100 to 120 mm will nicely fit most human hands. TBS Fox Folding Lock Knife - Curly Birch. Two bolsters (to fasten this you will need four round-headed screws), Two handle slabs of your choice of material for the handle (four round-headed screws), two bushes or back spacers plus two countersunk flat head screws shims to cut out two washers for pivot pin. TBS Fox Folding Lock Knife - Black Micarta. As well for this to work correctly the blade cut out should be done with a 120 grit belt and the leaf with a 16 or the most 400 . Custom Handmade Damascus Steel Folding Liner Lock Knife with Sheep Horn Handle 939 $ 65.00. I am making a liner locking knife - and by popular demand, I will try my best to video the process and make a rudimentary tutorial. Spray the back of each with spray glue and fix them to a piece of scrap metal plate or Perspex. Mark out the thumb coil and bolsters. In this article we will discuss the most conventional locks. Ambi Lock. Page 4 - Discover all our liner lock folding knives for sale on DepDep online shop. Do not place the holes to close to the edge of the handle - you will need to chamfer the finished handle and you don't want that chamfer to touch the screw holes. The contact should be the inside EDGE of the leaf, looking at it from the bottom side of the knife is what should make contact with the blade cut out. The Cattaraugus liner locking patent, 825,093 was issued on July 3, 1906. We wil name this point A. There are various methods of designing your liner-lock folder. Seriously, you should buy a good knife. Some of the many knife makers and knife manufacturing companies that utilize the Linerlock, in alphabetical order, include: Article: THE LINERLOCK - RIGHT FROM THE SOURCE, by Bernard Levine, https://en.wikipedia.org/w/index.php?title=Liner_lock&oldid=983952574, Creative Commons Attribution-ShareAlike License, This page was last edited on 17 October 2020, at 07:34. $40.00 $ 40. This ensures that the blade will completely fit inside the handle, shrouding the tip and thereby protecting the user when closed. Mainly because I find the lock back to be more reliable construction-wise and ergonomic compared to the liner lock. Remember to take into account the diameter of the screw heads you will use to assemble the finished knife. Use dividers with the pivot as centre point. If you want to keep it, take a pencil and draw some of the graphite onto the blade where the liner makes contact. This is a short archive of most of the steps involved with the knifemaking process. Transfer the notch for the stop pin drawn on the transparency to the liner. Each knife is produced with about 180 individual work steps, which we carry out carefully by hand and with high quality standards. Determine where the point of the blade will rest in the closed position, taking into account the size of the back spacer or bush. Custom Handmade Damascus Steel Folding Liner Lock Knife with Sheep Horn Handle 939 $ 65.00; Blank Blade Damascus Survival Tracker Knife Blank Blade Custom Handmade Damascus Steel Hunting Knife Best Tracker Knife With Stainless Steel Handle 1409 $ 40.00 Benchmade, Spyderco, Kershaw, and SOG's are great and not all too expensive. Now draw the back of the blade and position the bushes or back spacers or bushes. Our Liner Lock knives are handmade from high quality materials. This method worked great for me. There is a lot of hype around early lockup and often the mention … Assuming the liner lock face is 90° to the sides: a shorter lock bar would need a steeper angle (say 9°) whereas a longer lockbar could get away with a lower angle (say 7°). Locking: Liner lock "Beta Plus" safety lock: TECHNOLOGY Cryogenic Treatment. When the knife blade is opened, a vertical metal lockbar is angled from the side of the interior toward the center where it butts against the tang of the blade. The reason is that it made from the thinner piece of metal, it is more prone to wear out compared to the frame lock. This knife has also seen more use as the mentioned Spyderco Ambitious. Locking Knives . The pressure of the lockbar, also called a leaf spring, prevents the blade from moving. [9], There are a number of other variations on the Linerlock or locking liner, depending on the knife manufacturer. The linerlock's locking side liner is split from the top toward the bottom, similar to an automotive leaf spring (also called a lock bar) that butts up against the tang of the blade to prevent the blade from closing. FREE Shipping by Amazon. If you were to go too low for a given lockbar length the lock bar would travel all the way across the face and not get tighter (to allow for wear). Treat your pocket to one of the knife world's finest. The MSRP on the Smith & Wesson Liner Lock Folding Knife is $19.99. The lock is similar to the liner lock, but this time the lock is made by the knife frame (part of the swing/handle) on the same lever system as the liner lock. The downside is however that the force required to unlock it will also be greater. However, the problem is that liner lock is not as robust as another locking system, so it is hard for use with the heavy duty task. Free returns are available for the shipping address you chose. Here is a video on how to fix your knife's liner lock. 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. A handle length of less than 80 mm is suitable for a more delicate knife that is not intended for heavy use. [1], Walker refined and popularized the design,[2][3] eventually securing a trademark[4] for the name "Linerlock" in March 1990. Washers provide a smoother operation and is therefore better to use. To unlock the blade, push the … Pick one up now before they're gone! Precisly making all components of this mechanism is the point to achieve a quality Ambi lock. The liner lock, originally known as a Walker Lock after its inventor Michael Walker, is one of the most popular types of locking systems. View Cart. Price: $55.25 & FREE Shipping. An early engagement (closer to the locking liner side) is much safer than “late” engagement (towards the non-locking liner) as force on the blade will naturally move the lock away from the locking side. We help you by giving you the tried-and-tested methods that will safely guide you in this design. A reminder of one of the Forum Rules: 'Behaviour Do not make inappropriate or offensive posts - including threats, harassment, swearing, prejudice, defamation, deliberate insults or name-calling, other negative remarks about this forum, its moderators and administrators or your fellow members. This is intended as a guide to get started and assist in basic knowledge. 00 $54.99 $54.99.