Random Thought Thread

yoko said:
But what I'm willing to sell is going to my homies first for a price lower than what I see posted from now on
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JearBeatus48 said:
This is really cool. Thanks for sharing. Now you peak my interest on your other designs and work outside of knives. Or also with knives and the knife industry.
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I did a bunch of stuff for them over the years. Another notable one you can Google was the Fusion wire guide endoscope clip. You can imagine, your endoscope is balls deep and the gas you're using send some of the bile back up your scope. This keeps those fluids out of your lap and guidewire out of your eye. It was very popular
 
Ingersoll Rand has a design center in my area. They're down in Davidson so they're one town south of me. I did some designs for them and a very notable one you can Google is the Doosan air compressor, I think it's C185?

This is notable because it was a 63 lb shot. It's the largest injection molded part I ever designed.

It replaced a cludge of assembled vacuum formed panels with a single rigid plastic part. It was a high risk high reward project. You can imagine, this is not exactly a high volume item so we had to keep tooling cost reasonable so it was done with a low pressure injection molding process. We used a structural foam press and did a variation of gas assist injection molding with it. The part is not a structural foam, it's a conventional relatively thick walled injection molded part but, to keep tooling costs down we used an aluminum mold so our clamping pressure would not tolerate a high pressure injection process so we packed the mold with nitrogen gas instead using gas runners in the part, using a variation of the gains process. My Pro-e model was over a thousand features long. Internal ribbing, gas channels, those side vents, all of it done with an open and shut mold meaning draft considerations on features over a foot tall and mold shut offs on complex geometry. All done without action. I was very proud of that piece.
 
Another one you can Google is the toddler tables seat

Very unglamorous part. Nothing sexy about it

But, I'm proud of this one because it's really very complicated geometry with no undercuts so those leg holes are actually done with a shut-off between the A and b sides of the mold, no action. Accomplishing that with a design that was still safe and comfortable was really tricky. The mold maker was impressed with what I came up with and came and visited me.
 
There's a bunch of stuff. I've done literally thousands of parts designs. I was a technical industrial designer product design engineer. The molds were made from my designs so they had to be ready to go and the part had to be successful, meaning it works as a product and it also can be manufactured without unnecessary mold complexity and expense. These geometries require advanced surface modeling and, at the time, I was one of the best proe advanced surface modeling engineers in the country.

Then I started making knives in my garage lol
 
Some of the cross pollination was with a company up in Hickory doing the fiber optic stuff with Corning. Part of the secret sauce with Delta 3V came into fruition designing their Kevlar cutter blades which I made out of low temper tweak D2.

We replaced a $1,500 carbide blade that was good for 20,000 cycles with some $150 D2 blades that were supposed to be good for 5000 cycles but we got way up in the six figures. It blew everybody's mind including my own.
 
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I did spend the better part of the day yesterday tweaking this design and pommel to get the center of gravity where I wanted it and make sure I had a little bit of belly at the sweet spot behind the center of percussion

So those old skills do occasionally still serve a purpose.
 
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