[TowerTalk] DIY Air Wound Coils

[Lux, Jim]

On 1/18/23 5:15 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


People do this all the time for tesla coils. There's a couple 
techniques.  One is to drill holes in a strip, then saw the plastic 
strip down off center from the holes; that leaves a hole that has a sort 
of lip on it.. The other is to cut slots that are *slightly* undersize 
and rely on the plastic and wire deforming. Another is to drill holes, 
then make saw cuts (or mill a slot) into the hole.