A friend of mine will be bring a Dremel tool tomorrow to trim down my steer tube. How do I move the star-nut further down the tube and keeping it level below the cut?
Yea...whomever put that starnut in his steerer gets the Asshat Moreon Wrench of the Day award.If you have that STAR NUT in the carbon steerer, do not reuse it. You need a compression plug for carbon steerers. Whoever installed that on your bike just f----3d you.
Compression plugs not only are more expensive, they also don't score the carbon thus weakening it and putting you in danger.
ok, everyone can calm down. the star nut is ok as it's installed in the alloy tube that's glued inside the steerer. your hit-the-bolt-w/ a-hammer thing will work just fine.Yes, it's a 3T Cervelo fork. It has the aluminum tube with carbon fiber glued on the outside of the tube. I'll be using a mask as precaution that's is for sure. I do plan on taping it in order to mark it with a pen. I saw on the mtbr forum that stated it's safe to use a long M6 hex bolt threaded into the star-nut and hit it with a mallet to push down it down with caution on the tapping. I really down want to drop $25 for a nut setter and use it just this one time.
A few thoughts (I've dealt with all levels of PPE, full face respirators, supplied air, HEPA)If you haven't cut it yet, make sure you wear a mask when you do. If I recall correctly, the dust is rather bad for you.
^ this is excellent advice from someone that sounds like they definitely know what they're talking about. no need to go crazy w/ equipment, just grab a fine tooth (32tpi) hacksaw blade and cut. it's very easy.A few thoughts (I've dealt with all levels of PPE, full face respirators, supplied air, HEPA)
A good clean fine tooth hack saw is all you need to cut a carbon steerer tube. The dust generated isn't of the size that is going to go airborne, it will drop to the table and you can wipe it up. If you really had a concern put shop vac next to your cut location while doing it.
I see no advantage to cutting with a dremel, it will typically generate a finer particulate, and the spinning blade and fan motor will toss things into the air. Putting on a mask won't contain the particulate, it will just stop you from inhaling/ingesting it for the moment. Not to mention if you F up with the dremel you will do it real quick. You'd have to do this over a vent hood or down draft table to contain things (if concerned).
I splurged on a PT clamp guide, use a hack saw with some lube, break the edges with a metal file and face it off on a vertical belt sander.
Hacksaws are like $6 at Home DepotUnfortunately, I don't have any saws.