A warning on pipe-cutters

A warning on pipe-cutters

Post by joemarshal » Tue, 30 Sep 2008 21:16:54


Ken - just to check before you dump your frame - you did put a wheel in
it when you were trying to take the post out didn't you? Even a 29"
wheel Gives you a much bigger leverage to twist against the frame than
just a person grabbing it and twisting it as hard as they can. I spent
ages wrestling with my old frame and it came off in no time once I
managed to get decent leverage on it by bunging a wheel in (and a seat
on - I didn't have a vice to hold the seatpost in).

Also, the only time I had to do this, it wasn't the pipe cutter that
was at fault, it was that the seat tube itself was slightly narrower
towards the bottom, and I put the post in too deep. I take it that
couldn't be the problem here?

Joe

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A warning on pipe-cutters

Post by GizmoDuc » Tue, 13 Jan 2009 17:31:50

I've done it again.

I don't believe it :(

There must be something to be said about repeating your
mistakes.....stupidity?

This time I had a seatpost that had been cut by a pipe cutter over a
year ago, it had been filed down well and seemed to work fine on my
Triton frame.  It was a bit of a snug fit in the KH36 frame, but slid in
ok.

Now it won't come out.

That's the second KH36" frame I've killed in 3months :mad:

I also have a suspicion the bottom of the KH36" frame's seat-tube is
narrower than at the top.

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A warning on pipe-cutters

Post by saskatchewania » Tue, 13 Jan 2009 17:51:25

:eek:

I don't know what to say other than I hope you have better luck getting
this one out.

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A warning on pipe-cutters

Post by jogi » Tue, 13 Jan 2009 18:33:35

if you have problems to get the seatpost out, just try the other way.
remove the wheel, press the seatpost through the frame as far as
possible, cut the upper end of the seatpost with a saw and press / pull
the seat post through the frame - that will save it.

jogi

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A warning on pipe-cutters

Post by Burett » Fri, 16 Jan 2009 09:56:08

All you need to do when cutting aluminum is to run the blade through
some wax. The hard red sprue wax they use for foundry casting works the
best, and it works for hacksaws, bandsaws, and angle grinders.

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A warning on pipe-cutters

Post by natha » Fri, 16 Jan 2009 10:29:41

I do about 50/50 aluminum/steel seat posts, if anything, more steel.

--
nathan
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