Spyderco Forums

p_atrick wrote: ↑

Fri Jul 28, 2023 9:00 am

Guts wrote: ↑

Fri Jul 28, 2023 8:56 am

Wouldn't the Yojimbo and Canis fall into this category as well?

Whoops, good catch.

Guts wrote: ↑

Fri Jul 28, 2023 9:58 am

I'm curious what's different about the compression lock on these models to include the LT3, that make them more robust vs say the Paramilitary 2, Para 3, etc. Is it just a beefed up lock bar perhaps?

Mushroom wrote: ↑

Fri Jul 28, 2023 8:33 am

JRinFL wrote: ↑

Fri Jul 28, 2023 8:07 am

...

I believe it was the the large heavy blade of the Szabo Folder itself that necessitated the addition of the spring. While the spring itself is a solution for “self close,” it still seems a bit overly complicated in my opinion. If a knife does not need it to operate safely, it just feels like adding potential failure points for little to no benefit. To me it would only make sense on the Military 2 and even then, it still feels like an unnecessary addition when the knife already functions perfectly without it.

James Y wrote: For me, I'd really like to see a comp lock with greater closed retention WITHOUT the need for a spring. I like simple better. Maybe a slightly bigger detent ball that is both tough and extra wear-resistant (won't wear flatter over time). I don't know how that could be done, but then, I'm not an engineer.

Jim

sal wrote: ↑

Fri Jul 28, 2023 2:23 pm

Hey Vivi,

Talking' Story:

FYI, Spyderco was scheduled to make a knife for Bob Taylor's REKAT company designed by Bram Frank, called the "Escalator". We were going to use Bob's "Rolling Lock' which he invented, A very nice lock invention. After we began engineering the model, Bob Taylor and Bram Frank had a falling out and Bob cancelled the project. We had already begun the project and Bob said didn't want us to use his "Rolling Lock" which we were purchasing from him and had already planned to use on some of our own models. Since Bob stopped the Rolling lock purchase, we suddenly found ourselves making a Bram Frank Model, but with no lock that we felt would fork for the MBC design at the time. Headache.

It took me about 2 weeks, but I was able to "invent" a new lock, the Compression lock, on demand, to use on the model, which was name changed to the "Gunting". Some time after production, Bram and Spyderco had a falling out and the Gunting project was disco'd. Bob Taylor and I are still friends. Funny how history has so many twists and turns?

sal

sal wrote: ↑

Fri Jul 28, 2023 2:23 pm

Hey Vivi,

Talking' Story:

FYI, Spyderco was scheduled to make a knife for Bob Taylor's REKAT company designed by Bram Frank, called the "Escalator". We were going to use Bob's "Rolling Lock' which he invented, A very nice lock invention. After we began engineering the model, Bob Taylor and Bram Frank had a falling out and Bob cancelled the project. We had already begun the project and Bob said didn't want us to use his "Rolling Lock" which we were purchasing from him and had already planned to use on some of our own models. Since Bob stopped the Rolling lock purchase, we suddenly found ourselves making a Bram Frank Model, but with no lock that we felt would fork for the MBC design at the time. Headache.

It took me about 2 weeks, but I was able to "invent" a new lock, the Compression lock, on demand, to use on the model, which was name changed to the "Gunting". Some time after production, Bram and Spyderco had a falling out and the Gunting project was disco'd. Bob Taylor and I are still friends. Funny how history has so many twists and turns?

sal

Wartstein wrote: ↑

Fri Jul 28, 2023 10:11 am

Actually I personally only read about comp.locks coming open in the pocket, never had that happen to myself - granted, I did / do not carry comp.locks much compared to especially backlocks, but so far my experience with the self close of comp.locks is fine.

James Y wrote: ↑

Fri Jul 28, 2023 2:56 pm

sal wrote: ↑

Fri Jul 28, 2023 2:23 pm

Hey Vivi,

Talking' Story:

FYI, Spyderco was scheduled to make a knife for Bob Taylor's REKAT company designed by Bram Frank, called the "Escalator". We were going to use Bob's "Rolling Lock' which he invented, A very nice lock invention. After we began engineering the model, Bob Taylor and Bram Frank had a falling out and Bob cancelled the project. We had already begun the project and Bob said didn't want us to use his "Rolling Lock" which we were purchasing from him and had already planned to use on some of our own models. Since Bob stopped the Rolling lock purchase, we suddenly found ourselves making a Bram Frank Model, but with no lock that we felt would fork for the MBC design at the time. Headache.

It took me about 2 weeks, but I was able to "invent" a new lock, the Compression lock, on demand, to use on the model, which was name changed to the "Gunting". Some time after production, Bram and Spyderco had a falling out and the Gunting project was disco'd. Bob Taylor and I are still friends. Funny how history has so many twists and turns?

sal

Thanks for the great story, Sal (as usual)! I never suspected that you invented the comp lock so quickly, or as an emergency replacement for another locking system.

Jim

sal wrote: ↑

Fri Jul 28, 2023 2:23 pm

Hey Vivi,

Talking' Story:

FYI, Spyderco was scheduled to make a knife for Bob Taylor's REKAT company designed by Bram Frank, called the "Escalator". We were going to use Bob's "Rolling Lock' which he invented, A very nice lock invention. After we began engineering the model, Bob Taylor and Bram Frank had a falling out and Bob cancelled the project. We had already begun the project and Bob said didn't want us to use his "Rolling Lock" which we were purchasing from him and had already planned to use on some of our own models. Since Bob stopped the Rolling lock purchase, we suddenly found ourselves making a Bram Frank Model, but with no lock that we felt would fork for the MBC design at the time. Headache.

It took me about 2 weeks, but I was able to "invent" a new lock, the Compression lock, on demand, to use on the model, which was name changed to the "Gunting". Some time after production, Bram and Spyderco had a falling out and the Gunting project was disco'd. Bob Taylor and I are still friends. Funny how history has so many twists and turns?

sal

vivi wrote: ↑

Fri Jul 28, 2023 3:28 pm

Sal, thanks for sharing some more insight on the comp locks history. That's really interesting!

Something I neglected to mention is the earlier comp locks had a different system for keeping the knife closed than modern comp locks. I believe you can see this on the Yojimbo 1 and Para 1. It wasn't based on a detent like a liner lock or the current comp lock. The blade was milled out to create a self closing bias.

olditguy wrote: ↑

Fri Jul 28, 2023 3:47 pm

sal wrote: ↑

Fri Jul 28, 2023 2:23 pm

Hey Vivi,

Talking' Story:

FYI, Spyderco was scheduled to make a knife for Bob Taylor's REKAT company designed by Bram Frank, called the "Escalator". We were going to use Bob's "Rolling Lock' which he invented, A very nice lock invention. After we began engineering the model, Bob Taylor and Bram Frank had a falling out and Bob cancelled the project. We had already begun the project and Bob said didn't want us to use his "Rolling Lock" which we were purchasing from him and had already planned to use on some of our own models. Since Bob stopped the Rolling lock purchase, we suddenly found ourselves making a Bram Frank Model, but with no lock that we felt would fork for the MBC design at the time. Headache.

It took me about 2 weeks, but I was able to "invent" a new lock, the Compression lock, on demand, to use on the model, which was name changed to the "Gunting". Some time after production, Bram and Spyderco had a falling out and the Gunting project was disco'd. Bob Taylor and I are still friends. Funny how history has so many twists and turns?

sal

I happen to have an old Benchmade Mini Ambush which was probably my first knife ever. Would this be a version of the original "rolling lock"?

sal wrote: ↑

Fri Jul 28, 2023 3:50 pm

vivi wrote: ↑

Fri Jul 28, 2023 3:28 pm

Sal, thanks for sharing some more insight on the comp locks history. That's really interesting!

Something I neglected to mention is the earlier comp locks had a different system for keeping the knife closed than modern comp locks. I believe you can see this on the Yojimbo 1 and Para 1. It wasn't based on a detent like a liner lock or the current comp lock. The blade was milled out to create a self closing bias.

Hi Vivi,

Very astute, The original method of keeping the knife closed. Unfortunately, it proved to be very challenging in tolerances. We would still like to improve the detent on the lock, We've tried a few things, but nothing yet. One day?

sal

vivi wrote: ↑

Fri Jul 28, 2023 6:39 pm

I will say my DLC Yojumbos have the best detents out of any compression lock I've tried so far. Pretty stiff to break the blade free of the detents hold, but incredibly smooth past that point. That's exactly how I like them.

Wartstein wrote: ↑

Fri Jul 28, 2023 9:42 am

vivi wrote: ↑

Fri Jul 28, 2023 9:26 am

p_atrick wrote: ↑

Fri Jul 28, 2023 8:37 am

Would you consider the compression lock of the Para3 to be unique? I have read/heard about the difficulties of the lateral force of the lock and FRN scales. While the operation of the lock feels no different than a compression lock in a G10 knife, there are some important engineering differences.

Never mind, see the comments by Guts below; I

From a user perspective, no.

From a manufacturer perspective, yes.

I was very impressed how well they implemented the comp.lock in the almost linerless FRN Para 3 LW (had one for a month). As you both said, felt as smooth and solid in operation as the comp.locks on my PM2 or Kapara.

sal wrote: ↑

Fri Jul 28, 2023 2:23 pm

Hey Vivi,

Talking' Story:

FYI, Spyderco was scheduled to make a knife for Bob Taylor's REKAT company designed by Bram Frank, called the "Escalator". We were going to use Bob's "Rolling Lock' which he invented, A very nice lock invention. After we began engineering the model, Bob Taylor and Bram Frank had a falling out and Bob cancelled the project. We had already begun the project and Bob said didn't want us to use his "Rolling Lock" which we were purchasing from him and had already planned to use on some of our own models. Since Bob stopped the Rolling lock purchase, we suddenly found ourselves making a Bram Frank Model, but with no lock that we felt would fork for the MBC design at the time. Headache.

It took me about 2 weeks, but I was able to "invent" a new lock, the Compression lock, on demand, to use on the model, which was name changed to the "Gunting". Some time after production, Bram and Spyderco had a falling out and the Gunting project was disco'd. Bob Taylor and I are still friends. Funny how history has so many twists and turns?

sal

mongo1958 wrote: ↑

Sat Jul 29, 2023 8:22 am

Wartstein wrote: ↑

Fri Jul 28, 2023 9:42 am

vivi wrote: ↑

Fri Jul 28, 2023 9:26 am

p_atrick wrote: ↑

Fri Jul 28, 2023 8:37 am

I was very impressed how well they implemented the comp.lock in the almost linerless FRN Para 3 LW (had one for a month). ...

Why did you let it go?