Going to attempt my first slip joint, let me say that this was a very informative explanation. I cannot thank you enough!! Subscribed and look forward to seeing more of your content. 🙏
So glad I found this channel as I have started making my own knives. Great to get a break down of how slip joints work. Especially the back spring. I do have a question about a knife I bought. It has good spring tension when opening and in the half stop. But when open the blade is held open but very weakly. It doesn’t take a lot to start pushing it closed, but only for and inch or so. Is that because of how the blade is ground? The blade is not ground well where it meets the back spring. Not level front to back or side to side. Or is the the back spring?
Repairs to old knife: What I want to know is how you put the blade pin in with the knife assembled? Are you suggesting you remove the back bolster pin and put it in last?
i would have ground out a longer are on the lockbar and not as deep , so as to spread the tension over the bar . your is placing too much tension on the peak of that curve
Eternal Void unless the spring is extremely stiff or has a ton of lift when the blade opens and closes, that is not likely to happen. I had a knife once that did have a back spring break. It was a marlinspike sailing knife. The spring had way too much lift as the spike rotated.