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Re: [TowerTalk] DIY Air Wound Coils

To: towertalk@contesting.com
Subject: Re: [TowerTalk] DIY Air Wound Coils
From: David Gilbert <ab7echo@gmail.com>
Date: Wed, 18 Jan 2023 20:31:04 -0700
List-post: <mailto:towertalk@contesting.com>
This should definitely be feasible.  My example was really basic ... 
just a cylindrical hole with a rectangular slot on top of it that only 
infringes on about 40% of the cylindrical hole.  The remaining 10% 
provided the "snap".  A better approach to avoid glue would be a tighter 
fit with a ramped entry.  If the grips were freestanding and not slots 
that should work well.  Maybe I'll play with it and update the files.
And although I used four bars, I think two might be sufficient based 
upon the coils I've built with #14 wire.
73,
Dave   AB7E



On 1/18/2023 6:15 PM, Brian Beezley wrote:
"My final choice was slotted acrylic bars for strength, water and UV resistance, and ease of solvent gluing the wires in place."
Grant, after seeing several neat coil form designs in the style of Air 
Dux, I've been wondering if a precisely shaped groove might hold the 
wire reliably without glue. I imagine it snapping into place with a 
satisfying sound. I suppose this would work well only for a single 
wire gauge.
Brian
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