View Full Version : Kevlar valve stem anyone?


curtislo9
10-19-2009, 12:03 AM
Well...it's not real...as far as I know. But check it out! I created this in SolidWorks, a manufacturing software that I'm using for class.

http://farm3.static.flickr.com/2519/4024379884_1c4aab3378.jpg

Kanchi
10-19-2009, 02:06 AM
dang...

BZinn1
10-19-2009, 03:55 AM
used to hvae bong that looked like that.........hey......CF bongs......we could make a fortune.......

jnaval
10-19-2009, 03:56 AM
CF bongs? Where!?

captainlaziness
10-19-2009, 04:34 AM
used to hvae bong that looked like that.........hey......CF bongs......we could make a fortune.......

That is a fantastic idea!

GreenMonstertC
10-19-2009, 05:12 AM
we could even custom paint them to match our cars..lol!

willlangford
10-19-2009, 05:16 AM
I have a CNC milling machine.

jenn[tC]
10-19-2009, 05:44 AM
I have a CNC milling machine.

what does that have to do with kevlar

dibbz
10-19-2009, 08:04 AM
lol... this went south in a hurry!
CF FTW!!
cnc really will???
thats pretty cool curtis!

ratcityrain
10-19-2009, 06:17 PM
good job curtis.. i have that program here @ work, but i haven't ever played with it

Iceman04503
10-19-2009, 06:49 PM
Your using SolidWorks? We're using ProEngineer, its a really cool program. Really easy once you get used to it.

mdickson81
10-19-2009, 08:46 PM
I have a CNC milling machine.


I feel you Will. How the hell are you going to get Kevlar to that form...? Using the CNC Mill you can make a tool to mold the Kevlar onto or CF in that case...? Thats what the CNC can do. I have never heard of a machine that can create Kevlar into shapes...

You should look at Rapid Prototyping it in DMLS, maybe some cobalt chrome or stainless steel. Or you can do a quick mock up for cheap out of SLA.

curtislo9
10-19-2009, 09:30 PM
Good pick up Mike. Yeah, someone would have to create a mold first and spend a lifetime trying to get kevlar to shape as I showed it. SolidWorks has a feature where you can choose diff materials, and BAM Kevlar valve stems haha.

I heard that Rapid prototyping is a popular program, next quarter in fact, I may be using that. There are some amazing things that you can do with these programs. I love being an ME major!

mdickson81
10-19-2009, 10:17 PM
If you need help with the Prototyping class let me know.

ratcityrain
10-20-2009, 12:09 AM
So Curtis w/ all this new knowledge, what is your dream job you're going after?

BZinn1
10-20-2009, 12:11 AM
I hope to never have to work with Kevlar ever again.....it is a nightmare to cut,and shape........you go through a lot of razor blades cutting it.....lol

And yes I am sure Will meant the CNC would be able to cut a mold with.....Will has all the fun tools.....I would love to have access to a mill again...ahhhh the billet parts I could cut and make a fortune doing so.....lol

willlangford
10-20-2009, 01:00 AM
Yup to create the mold. :)

Also if one wanted to do some other tricky things make a mold with kevlar or carbon and then machine the small details as well.

curtislo9
10-20-2009, 01:18 AM
So Curtis w/ all this new knowledge, what is your dream job you're going after?

1-2 yrs of engineering after I get my BS, get an MBA, and then management ftw.

Tomas
10-20-2009, 02:05 AM
I hope to never have to work with Kevlar ever again.....it is a nightmare to cut,and shape........you go through a lot of razor blades cutting it.....lol

Yeah, kevlar can be a real bugger.

When I was engineering and we first started getting in fiber optic cables that had Kevlar strength members in the sheath, it was amusing to watch the techs that didn't pay attention trying to cut Kevlar with diagonal cutters, knives, or scissors. :)

The cables looked like they had a layer of fine, smooth, silky blond hair just under the outer sheath all the way around. They'd cut the sheath back to where they wanted, then gather up all the "blond hair" and try to cut it, destroying their tools. That stuff is TOUGH!

http://tijil.org/fiber_cable.jpg

We had special ceramic cutters for the Kevlar - worked great, but even the little scissors that looked like they belonged in a kindergarten class cost like a hundred bucks a pair. :shock:

I wonder where mine went? Last I saw those scissors my old business partner was playing with them... :?

http://www.amazon.com/Kyocera-Inch-Industrial-Utility-Scissors/dp/B0017OCTVQ/ref=sr_1_4

Tom

BZinn1
10-20-2009, 03:10 AM
You know I wonder where my sissors went too for that.......they were spendy.........we also used scalpels they lasted for about 2 parts then were junk......all the stuff we did was prepreg too so it was a mess to try to shape and cut......i had nightmares for months.