Re: Primary Materials (fwd)

---------- Forwarded message ----------
Date: Tue, 21 Jul 1998 17:28:56 -0400
From: Tony Lekas <tony-at-lekas-dot-org>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Primary Materials (fwd)

Home Depot carries both the thin wall and thick wall tubing.  The thick wall comes
in a box labeled refrigerator tubing.  In my local store it is up higher on a
shelf and is not obvious.


Tesla List wrote:

> ---------- Forwarded message ----------
> Date: Mon, 20 Jul 1998 04:57:13 -0500
> From: bertpool <bertpool-at-ticnet-dot-com>
> To: 'Tesla List' <tesla-at-pupman-dot-com>
> Subject: RE: Primary Materials (fwd)
> -----Original Message-----
> From:   Tesla List [SMTP:tesla-at-pupman-dot-com]
> Sent:   Sunday, July 19, 1998 10:25 PM
> To:     tesla-at-pupman-dot-com
> Subject:        Primary Materials (fwd)
> ---------- Forwarded message ----------
> Date: Sun, 19 Jul 1998 00:42:11 -0500
> From: Adam Parker <park_e_r-at-hiwaay-dot-net>
> To: Tesla List <tesla-at-pupman-dot-com>
> Subject: Primary Materials
> >Once again a fledgling coiler has yet another question. Yesterday I made my
> >flat pancake coil form out of four pieces of 1/2 inch PVC mounted radially
> >on some painted plywood. After making my coilform, I tried winding the
> >thing with thin-wall 1/4 copper tubing. I had trouble. The tubing kept
> >kinking and never formed a good circle. After struggling with about 6 turns
> >I called it quits and removed the tubing.
> [snip]
> >Adam
> Adam, I have seen cheap copper tubing (from Home Depot) which has a very
> thin wall, perhaps only 1/3 as thick as real refrigeration tubing.    The Home
> Depot tubing is intended for use with low pressure water (less than 100 psi)
> systems, such as the ice make on a 'fridge.  It kinks horribly.  Use real
> copper refrigeration tubing from a refrigeration equipment supply house, etc.
> You will find that it come already formed in a large hand-coil.  Use the
> natural curvature of the tubing to advantage - do not first straighten it out!
> Wind your pancake from the inside turn to the outer turn.  It helps to put the
> tubing on top of a bucket or other pedestal in the center of your coil.
> Bert Pool