Best way to cut carbon fiber tubing?

[Limpy45]

I have cut many carbon fiber arrows to length using a high speed cut off saw with a abrasive cut off wheel.  Nasty dust, but does a great job.  Splinters are a REAL pain in the bxxt.  Don't get them!!

[DHunter]

Depending on what it's for, you might want to check with highly experienced bicycle-shop mechanics.  (There are too many non-expert ones who think they're experts.)  I mention the bicycle business because cutting the excess length off a carbon-fiber fork steering tube is common when fitting a new fork to a frame, and if it's not done right, it can result in a bad crash later, IIRC.  (I doubt you're shortening a CF compressed-air bottle LOL, so perhaps the safety issue is nearly non-existent.  I thought I should mention it anyway though.)

Carbon-fiber bike frames and forks don't fatigue like the metals do, so they're generally a lot more durable; but there are certain things you do have to be careful of.  The same goes for carbon-fiber handlebars.  I've known of plenty of aluminum ones broken from fatigue (and it nearly always resulted in a nasty crash), but the carbon-fiber ones only break if they're not clamped right.  Fortunately, CF handlebars and seat posts don't normally get cut.  My road carbon-fiber frame and fork have 43,000 miles on them, and the only bike parts I've ever broken were metal:  crank arm, pedal, chain, axle; and in frames, before I had a carbon fiber frame, I broke steel—twice.