Building a Template
August 26, 2009 at 2:39 am Leave a comment
So one of the main problems with my first antenna was that it looked like crap. 😀 I coiled the cable by hand in the air and it didn’t turn out so well. This time I wanted to create a hard cone-shaped shell to wrap a cable around.
With a large 33 degree angle spanning several sheets of paper laying on the table, I got a large piece of posterboard and curled it up into a cone and taped it down when it was the right angle. (Having a partner here helps to tape down the edges while you hold the posterboard in place.)
Trim down the bottom so that it has a relatively flat base and you’re good to go. It wound up being about 20″ tall or so.
Now, I’m gonna want to make sure it maintains its shape when I start applying pressure onto it by squeezing it with copper wire. A pair of balls will work fine, a tennis ball to support the apex and a larger bouncy ball to support the larger section. They’re both lightweight and resistant enough to push back when I apply pressure.
With the balls shoved inside the paper template, we’re good to go!
Entry filed under: Construction. Tags: Paper Template.
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