View Cart. 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. Liner lock. 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. Let me know. This knife has also seen more use as the mentioned Spyderco Ambitious. Remember to take into account the diameter of the screw heads you will use to assemble the finished knife. Ambi Lock. 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. The downside is however that the force required to unlock it will also be greater. 00 $54.99 $54.99. There is no inherent portion of the LINER-LOCK system which secures the blade in the closed position. Pick one up now before they're gone! Find out the Laguiole Liner Lock pocket knife. , Linerlock mechanisms are most commonly composed of titanium alloy or steel. This is the only way to earn the quality mark "made in Solingen/Germany". Other options New from $38.10. 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. You know the lock has been bent enough when it rests a bit further out than the thickness of the blade. 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. 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. It is now time to transfer the drawing from the two dimensional representation to a three-dimensional object. 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. The location of the ball bearing is determined by the dimensions of the lower radius or edge of the blade's tang. 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. It is topped off with a lanyard hole, deep-carry pocket clip, buttery-smooth flipper action, and a liner lock for solid lock up. Once you have drawn a design you are satisfied with your design, make an accurate drawing of the handle to scale. Drill out the pivot holes on both the blade and the handle patterns and assemble them with a try pin. The shorter the spring, the greater the force will be that is applied to the lock. The pressure of the lockbar, also called a leaf spring, prevents the blade from moving. We have done it for many years for others, … View Cart. Damascus Folding Knife Custom Handmade Damascus Steel Pocket Knife with Sheep Horn Handle …  In an interview with Blade in 1988, Walker stated, “This long leaf-spring effect cuts down on stress on the locking mechanism". Full contact between the blade and spring face is not recommended as this could cause the blade to rock up and down. This is a short archive of most of the steps involved with the knifemaking process. Position the holes for all the fastening screws that you will need for the handle slabs, bolsters, and bushes/spacers. 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 . Fifty times the thickness of the liner 50 x 1.2 mm = 60 mm. I tend to pass my knife to coworkers who need it and with the increasing number of … Have thoughts or ideas??? Determine the position of the pivot point. Please keep in mind that this is only one way out of very many ways to accomplish the same thing. 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. 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. Measure the width and length of the handle that you have designed. Page 4 - Discover all our liner lock folding knives for sale on DepDep online shop. 4.7 out of 5 stars 37 ratings. 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