euroken
Gold Member
- Joined
- Aug 28, 2014
- Messages
- 2,696
The up and down or back and forth play have no concern to me really. Side to side play is a little more bothersome as far as im concerned of the life expectancy of the knife. I have knives (like many of you probably) that i have retired due to side to side play becoming more and more severe. Once it starts to have a certain amount it gets worse faster. Cutting with it, if you have to apply any force it will cause the knife to start twisting, making the blade pry against the bolster opening the gapage even more. The more side to side it gets the less the knife will remain straight when trying to make a cut. Then its just not as saitsfying to use so into the retirement bag it goes.
im not trying to complain, just explaining how side to side play does matter in the long run if you plan to use the knife. And i understand a couple taps with a hammer may very well fix it.
My take on the video is that their machinery cannot get the parts precise enough to fit as tight as they would like. As a result, a lot of hand finishing is required to make the final adjustments. Hand finishing, by its very nature, is variable and imprecise. So, they have not been able to make their locking knives as tight as they would like. According to Randy, side to side play is easy to eliminate, and should not be present, but it takes great precision and extremely small tolerances to completely remove all up and down movement. He said they are always working on improving their techniques and have some machinery in the works that he believes will make the knives better.
I have had great luck with 'cheaper' brands (chinese made) in regards to solid lock ups without up/down/side movements. I was wondering if this is due to modern manufacturing processes and equipment. I have a custom lockback Lanny (just posted a picture moments ago

Just makes you wonder about all the challenges in finessing the fit of these traditionals.