[TheForge] Re: helical railing calculations

[Bob Ehrenberger]

--- Original Message ---
Date: Mon, 27 Sep 2004 10:17:41 -0700
From: Andy Vida <osan at netlabs.net>
Subject: Re: [TheForge] Re: helical railing calculations

Bob Ehrenberger wrote:

> But Every time I try to use my tire bender I end up with a helical sort of
> effect.  The problem I have is I am trying to do it by myself and I can't
> hold the bar straight and turn the crank at the same time. If the bar
cross
> tracks on the rollers it gets a helical bend.

Andy wrote:

Does the bender have guide rails?  If not, you might want to
consider installing a set.  Just an adjustable "throat" if
you will, to guide the in- and out-feed of the rolls for
correct alignment.  Put in the stock, and crank away.

Me again:
Actually I wrote this thinking that if it happened to me by accident you may
be able to do it on purpose.  Figure out the angle to feed the stock through
the rollers to get the helical bend you want,  you could then make/set your
guides to force a specific cross track feed.

I almost never use the tire bender, not much call for it.  It did a great
job of bending the conduit to the same countour as my quansit building.

Robert Ehrenberger
Shelbyville, Mo.