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- Thread starter Dennis Cahoon
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Dennis Cahoon
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The chain guard has a thin piece of titanium molded in the middle just in case. With the new sprocket design though, haven't thrown a chain yet......Knock on wood! With the aluminum frame I was at 52lbs. total fueled/bar & chain weight. Not sure yet what the carbon frame is going to totally save, but just the frame weighs 2lbs.
Done right, CF is incredibly durable. I wouldn't expect a chain to do any more damage to CF than to mag or aluminum. CF is seeing a lot of use in downhill mountain biking frames which is a far more demanding application.
Dan_IN_MN
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"Coming soon" Carbon fiber Hotsaws......Stay tuned!.......Hahahahahaha!
So is Christmas!
:yoyo:
Yeah my K2/Pro-Flex bike has two carbon fiber sub-frames and a carbon fiber fork. I've put probably 4k miles on that bike without an issue yet, and it's
been through tons of abuse hauling my fat ass around.
J.Walker
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Carbon fiber Hotsaws......Stay tuned!.......Hahahahahaha!
Dennis will this saw be using one of rare carbon pistons from Dean? :msp_scared:
nick 55
ArboristSite Guru
Who says it has to use only one?
Nick
Nick
LFEngineering
ArboristSite Operative
Yea buddy. 
opcorn:
opcorn:
Dennis Cahoon
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Here's this weekend's engineering. Lots of drilling and fitting. The carbon fiber's not hard to drill, grind, or cut, but dulls everything pretty fast. There's suppose to be single flute drills for this, but I don't have any yet. Dulls band saw blades fairly fast too. Right now we've reduced the total weight by more than 6lbs with some parts still missing, but will add more carbon pieces as we go.
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Here's this weekend's engineering. Lots of drilling and fitting. The carbon fiber's not hard to drill, grind, or cut, but dulls everything pretty fast. There's suppose to be single flute drills for this, but I don't have any yet. Dulls band saw blades fairly fast too. Right now we've reduced the total weight by more than 6lbs with some parts still missing, but will add more carbon pieces as we go.
Dual compression releases???? Ya wimp...
Looks good
AU_K2500
NSM
I think i just peed a little. That looks incredible. Amazing craftsmanship Dennis. 
RiverRat2
Serio Tree Freak
LOLOL!!! I'd have to agree with that!!!
Dennis Cahoon
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If testing goes good TJ Bexten will be using the carbon fiber frame March 30 at the STS qualifier in Corvalis, Oregon. That's the same CR250 engine he won with last year, but it was sporting the aluminum frame. Even the starter handle is CF but we need some round stock to make the handle full CF.
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lumberjackau
ArboristSite Guru
All I can say Dennis is WOW excellent craftmanship as per usual with your work, you set the bar very high
Cheers
Will
Cheers
Will
husq2100
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Dennis, there are alot of carbon fibre paddles for Outrigger canoe's, Stand Up Paddle, kyaking etc Round hollow stock should be easy to come by. Im still very interested to see the ganes and longevity of CF in this application.
Dennis Cahoon
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Yes, me too. Just like the time I bought an aluminum bar for the 500......very light weight, but didn't last more than 2 cuts, and cost me $300. I do think the CF will work well and make the 250 quite a bit lighter.
cpr
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Is big spur instead of big pin the no-toss solution you memtioned?
Zombiechopper
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I've worked with CF a bit. You really gotta watch out as there are some health risks. The dust has tiny little fibers that can really cause trouble for your lungs. I know other guys that won't touch it anymore due to chronic respiratory infections. It's best to do everything wet sp as not to create any dust
husq2100
Addicted to ArboristSite
surely a decent mask with the appropriate filters would take care of that....there are ALOT of surfboard shapers where I live....usual work uniform is board shorts, thongs and a mask.
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