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primary hold down's
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To: "'Tesla List'" <tesla@pupman.com>
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Subject: primary hold down's
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From: Tesla List <tesla@stic.net>
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Date: Sat, 7 Mar 1998 17:31:11 -0600
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Approved: tesla@stic.net
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From: Alfred C. Erpel [SMTP:aerpel@op.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@pupman.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@earthlink.net]
Sent: Friday, March 06, 1998 12:27 PM
To: tesla@pupman.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