Removing insert.

[LA Trapper]

I heat the field point with a small propane torch while it is screwed in the insert.  But I do not snug the field point down.  I only screw it in 2/3rds of the way to prevent wayward flames and keep the direct heat off the carbon.  After the heat transfer, I screw down the point tight with my Leatherman, wait a second or two and the insert comes free.  Been doing it for a while with no side effects.

[Montanawidower]

Been using the heated field point for years.  I would not suggest you do it willy nilly, but in a pinch it works.  

I would say I damage maybe one arrow out of a dozen doing this.  

I have done it on Grizzly sticks, GT, and Beemans.  Occasionally on GT you will get a sliver of carbon rap on the internal surface that frays at the tip at the tip.  

USE CAUTION and be patient.  Use just a little heat at a time and check, with a twist.  More heat, 5 second wait, check with a twist.  

Once the first one releases, you'll have a good idea on the amount of heat it takes and the process speeds up.

[Breakfast Boy]

Originally posted by mongoose:
BreakfastBoy, what do you mean by"swinging" the shaft and are you talking about a bit to fit the insert and not the shaft?? Thanks, George

Like Bolo7735 mentioned, I swing the shaft like a fishing rod.  And the bit fits down into the shaft, from the nock end (just pull your nock out and slip the bit inside).  You will have to hold our hand over the nock end so the bit doesn't fall out on the back swing, but you can let go when you swing the shaft forward with the other hand.

I think I'll try to get some all thread and nock it out that way.  Seems safer than the drill bit and swinging idea.

[LKH]

It's not the heat, but the rate of heat that is critical.

Hold the field point in a vice grip, heat it quite hot, then screw in while pulling out with as much force as you can manage.  You really need a partner to do it well.

The idea is to get the heat to affect the glue before it affects the glue holding the carbon fibers together.  

I've done a lot of them and never hurt the shaft.

Slowly heating the tip while in the insert is not as effective since the heat gets to the glue of the shaft.

[oops sorry]

Amazingly enough the coefficient of thermal expansion is very high for the aluminum insert and near zero for carbon composites....there is an excellant reason to try cooling the shafts. The insert will shrink away from the shafting at the same time that the glue goes below its glass transition temperature. So maybe a deep freeze or dry ice. If you ever epoxy a match rifle into its stock, overnight in the deep freeze and it pops right out. I see no reason that won't work here. but hey, ymmv