Knife I made

Stacy E. Apelt - Bladesmith said:
Interesting knife. Not sure if it will be practical because of the complicated mechanics Are you Joseph Varner?

1911bphil - please don't offer to buy or ask for sales in Shop Talk.
Click to expand...
Thank you and yes I am. You must be the moderator that moved my discussion to Shop Talk. Not to worry. I'll purchase the necessary subscription prior to making any sales on this site.


https://imgur.com/pcJqmB3

unwisefool unwisefool , the cutting edges are on the blackish high carbon steel parts. On this model they are cold blued. I would like at some point for them to be nitride finished but the idea is to replace blades as they wear out so I might focus on other production aspects first like type2 anodization of titanium parts and injection molded PET.

A seemingly unavoidable limit of the practicality of the design in a utility sense is the the resistance of material being "sliced" caused by any arrangement of multiple blade components (as opposed to a blade made of one piece). I've faux sharpened the titanium components that hold the steel blades to help re-direct material being sliced over the width they add to the assembly. Pushing the knife too hard to perform a task a traditional knife is more capable of will result in failure/ breakage but the modularity of the design safeguards against irreparable damage. The loss and regrowth of shark/alligator teeth across their lifespan was partly an inspiration in this concept.

Not a traditional knife but it's capable of performing my daily "pocket knife" tasks with unmitigated style. will post a video soon.
 
Sam_Hill_1911 said:
Thank you and yes I am. You must be the moderator that moved my discussion to Shop Talk. Not to worry. I'll purchase the necessary subscription prior to making any sales on this site.


https://imgur.com/pcJqmB3

unwisefool unwisefool , the cutting edges are on the blackish high carbon steel parts. On this model they are cold blued. I would like at some point for them to be nitride finished but the idea is to replace blades as they wear out so I might focus on other production aspects first like type2 anodization of titanium parts and injection molded PET.

A seemingly unavoidable limit of the practicality of the design in a utility sense is the the resistance of material being "sliced" caused by any arrangement of multiple blade components (as opposed to a blade made of one piece). I've faux sharpened the titanium components that hold the steel blades to help re-direct material being sliced over the width they add to the assembly. Pushing the knife too hard to perform a task a traditional knife is more capable of will result in failure/ breakage but the modularity of the design safeguards against irreparable damage. The loss and regrowth of shark/alligator teeth across their lifespan was partly an inspiration in this concept.

Not a traditional knife but it's capable of performing my daily "pocket knife" tasks with unmitigated style. will post a video soon.
Click to expand...
Ok, I wasn't seeing that there were two blade sections. Thats some science fictiony type shit right there. Not going to lie, I kind of dig it. Let's see a video of it in action.
 
Yep, not what I was expecting. Kinda has a G&G Hawk feel to it. Doesn’t seem very practical but who knows?

Hoss
 
I can dig it it. You've definitely got some design and fabricating skills. Looking forward to a video.
 
It reminds me of the iconic folding sword from the video game franchise "Dishonored". I've always wondered if it was possible to have the blade fold within itself. Your knife seems pretty close to that concept.

dishonored.fandom.com

Folding Blade

The Folding Blade is a unique sword and the primary right-hand weapon for Corvo Attano and Emily Kaldwin in most of Dishonored and Dishonored 2. The only gameplay difference between this and other swords is that it can be upgraded. The blade's mechanism is resilient and efficient for both...
dishonored.fandom.com dishonored.fandom.com
 
Offering to buy/sell in Shop talk
Sam_Hill_1911 said:
I also experimented with laser engraving of color anodized titanium.

https://imgur.com/h3OgFD9

Anodization does not seem to have an effect on the process and engravings retain all quality and contrast nicely.

The knife is made of grade 5 titanium with 1095 steel blades and 18-8 stainless steel hardware (screws, standoffs). Since the blade is an assembly of smaller, weaker parts, The Titanium and 1095 steel have a spring temperament to prevent immediate breakage where stress is present.

The white Handle parts are polyethylene terephthalate that have been 3d printed at 100% Infill and converted into isotropic solids via baking the parts in fine compacted salt to increase strength and surface finish ability. In addition to being quite strong the polyethylene terephthalate is heat resistant, self fire extinguishing, non-toxic and chemical resistant. it can be cleaned with acetone.

The primary design challenge was in arranging the latching system to take all play out of the extended "ready for use" configuration while allowing unrestricted rotation of components into the "collapsed" configuration. I have been serviceably successful in doing so. Admittedly some luck may have played a part in this.

I will be carrying it and using it in a "pocket knife" role to asses it's performance and hopefully any design aspects in need of being improved upon will come to light.

Until then I'm interested in what "knife heads" think about it

-Joe
Click to expand...
Message removed - PLEASE, do not offer to buy or sell in Shop Talk.
 
Last edited by a moderator:
You must log in or register to reply here.
Back
Top