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Re: [TCML] Flat Spiral Primary

I did it, but your glue will likely fail, as mine did. I had to screw down my lexan supports. I drilled my holes 1/16" larger than the tubing OD. I think it took two days of hand blistering pushing to get it done.


It looked great, but on my next one, I drilled the holes, right at the top of the holder, leaving a little over half a circle, so the tubing snaps in place.




I don't know how well wood will hold up where you live. If it's pretty dry, you may be OK. I'd consider cutting the top half of your holders off. If you leave a little more than half of the hole, the tubing will snap into place.

Good luck either way.

--- On Sun, 3/21/10, Ken Kociolek <kkociolek8577@xxxxxxxxxx> wrote:

> From: Ken Kociolek <kkociolek8577@xxxxxxxxxx>
> Subject: [TCML] Flat Spiral Primary
> To: tesla@xxxxxxxxxx
> Date: Sunday, March 21, 2010, 5:04 PM
> Hello,
> Been working on my TC for a few months now. I made primary
> supports for the
> ¼” copper tubing out of strips of 1” x ½” wood.
> Drilled 3/8” holes and glued
> the supports down to a wood base in a symmetrical manner.
> Now I have to
> “thread” the tubing into this circular support. Is this
> going to be a
> headache? Will the tubing get stuck after a few turns in?
> Was there a better
> way to do this? I appreciate to hear comments from anyone
> who has been down
> this road before. Thanks.
> Ken
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