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Lloyd E. Sponenburgh[_3_]

fired this volley in
:

My concern doing it that way is that if you do not get the edge
perfectly symmetrical the cutter will thread the pipe rather than cut
it.

Horse-pucky. Unless you're so ham-handed that you gouge the edges 20-30-
thou, the WORST it will do is cut a _slightly_ crooked cut. "Threading"
is caused by loose bushings in the wheel and the rollers. If the wheel
and the rollers roll 'true', it cannot help but cut true, so long as the
sheer edge of the wheel can find the old groove.

You can cut true with a wheel that's five or six thousanths out-of-plane,
and anybody with reasonable eye-hand coordination can do that on a common
grinder, by hand.

You don't just take the wheel off and try to hand-hold it! You put it on
a spindle (bolt, turned rod, whatever), and admit it to the side of the
wheel such that the angle of incidence doesn't spin it real fast -- just
a hundred or two RPMs. It's self-equalizing that way, and you'd be a
real klutz if you couldn't get it nice and evenly tapered that way.

And it takes more time to remove and replace the wheel from the pipe
cutter than it does to touch up the edge.

Lloyd