primary hold down's

To: "'Tesla List'" <tesla-at-pupman-dot-com>
Subject: primary hold down's
From: Tesla List <tesla-at-stic-dot-net>
Date: Sat, 7 Mar 1998 17:31:11 -0600
Approved: tesla-at-stic-dot-net

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From:  Alfred C. Erpel [SMTP:aerpel-at-op-dot-net]
Sent:  Saturday, March 07, 1998 12:49 PM
To:  Tesla List
Subject:  RE: primary hold down's

Walt,

	Perhaps you should not notch the polycarbonate, but drill a 9/32" (.281)
hole and thread the tubing thru. You will probably have to prewind the 1/4 "
tubing into a pancake which has the same pitch as the 30 degree slope
projected on to the plane of the pancake.
	I have not done this, so I am not sure it is possible.

Best of luck
Alfred Erpel

----Original Message-----
From:	Tesla List [mailto:tesla-at-pupman-dot-com]
Sent:	Saturday, March 07, 1998 12:08 AM
To:	'Tesla List'
Subject:	primary hold down's

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From:  Walt Kulpa [SMTP:gwkulpa-at-earthlink-dot-net]
Sent:  Friday, March 06, 1998 12:27 PM
To:  tesla-at-pupman-dot-com
Subject:  primary hold down's

Hi, I'm working on the form for my 1/4" refigerator tubing primary.
I'm planning on using 1/4" polycarb for the support fins. I've got the
calculations made on where to notch the plasitc in order to create a
nice uniform  30degree slope and 15 degree rise with 1/4" spacing
between turns, but what I don't have is, what can i do for holding the
tubing into the notches? I don't want to just let it lay there, do I?
I'm not so sure that adehesive is a good idea, is it? How is holding the
tubing into the plastic commonly done?
Thanks, Walt Kulpa