New front flipper framelock build

Always thinking forward to the next knife, after I get some of the Kuros folders sold I plan on launching this one, a front flipper. I have had a lot of input from @Sharp & Fiery as he's a front flipper fanatic and I've had a bunch of good folders come through my hands to pick which features I like and dislike. Looking for this to be a 3.15" blade. I will post pics here as it comes together.

I've finally learned enough on Fusion 360 to make my own folder and all the features needed. If you guys have any input or thoughts I would love to hear them!!!

 

On front flippers you really want them on the outside on a frame lock so you have a good index point and extra traction when opening. But thanks for chiming in!!

 

Thanks for the input

You are right, it definitely won't be for everyone opening wise. But, I'm planning on getting it dialed in perfect to where there wouldn't really be hardly any learning curve (detent and action wise). That's a great point on snagging! I hadn't thought about that... I'm actually planning on having one proto made and carry it for a bit before I go ahead with the run. So that will let me decide if and what the final changes need to be!

 

Excellent points, thank you! Yeah I agree about the choil, I'll change that up a little so if it does snag it will slip right up onto the edge.

Regarding the relief position, yes it may be a tad high but I had a shamwari here I was messing around with when figuring out placement and while higher than where the shamwari was it seemed to be in a perfect position for the ring finger. But... I will have to get a proto in hand and use it before the final determination. A prototype is invaluable in designing folders!

Thanks Justin! Yeah I have the clip riding on the flat portion of the scale so hopefully that will be prevented, but I will also likely chamfer the relief area to help as well

 

Thanks for the input!

The reason I went w/ an internal pin on this one was because I didn't want to be limited with the blade width when it comes to sharpening/choil issues and also so I could wrap the jimping all the way around the tang. Emerson's and other knives have the issue where, once you sharpen back to the bottom of the choil you will develop detent rock because you have removed metal from the closing stop pin position.

I left about 1/16" of metal there on the closing stop pin position but I figure that's enough because when closing there is not going to be a ton of force on the knife - I am much more concerned with the metal on the other side of the lock (when in the open position).

What I will likely do is make a second larger model at some point, it's not too difficult to scale everything up 10-20% so that is cool

 

Got permission from Brian Nadeau to use his integral detent nub I may change it up a little bit but here is how it stands now!

 

Did some more work on the CAD today...

Canted the clip slightly to clear the lockbar relief area more as well as a better ride in the right hand carry position



Also am incorporating an asymmetrical clip contact point which will also help clear the lockbar relief area as well as make inserting and removing from the pocket easier... a lot of shiro's do this (which is where I got the idea). I'm sure @Sharp & Fiery and @ChazzyP can attest to how well this idea works!



Chamferred the relief area



did away with a little jimping where it wasn't needed


and added some weight relief pockets



then modded the detent nub a bit more in line with Brian Nadeau's since I'm fortunate enough to have his permission on this folder!


it's coming together

 

The SBD (Sharp by design) integral detent nub basically allows for smooth riding with no detent ball bump when closing, and the one I've checked out has been extremely smooth. I'll probably have it sitting .020" out of the insert which will also lower lock bar tension a bit compared to a regular detent ball which sits out about .025-.027" typically. Every little bit helps!

I think I'll be able to hit that mark no problem weight wise... Esp. With the weight reduction pockets and a full flat grind (or almost)

 

Oh almost forgot this shot! You can see the assymetrical contact point on the clip!