Spam ? - No thanks, instead: Re: how to drill pipe!
beatnic at comcast.net
Thu Oct 28 23:17:37 CDT 2004
I don't think you will be able to line the holes up with a hand drill.
A little cheap drill press could do a good job and a Mill or Mill/drill
an even better job. You can get a cheapo 1/3 hp drill press for under
$75 these days and it really expands your capabilities.
John Teller wrote:
>Here are some suggestions:
>1. Build a jig out of wood that looks like this:
>Where the --- and | are bits of 1x4 and are cut such that they fit snugly around the pipe O
>2. Drill through the top piece --- all the way down through the pipe and into the bottom piece.
>It should be reasonably straight...
>>From: Hal Feinstein <hfeinstein at cox.net>
>>Date: 2004/10/28 Thu PM 10:33:24 EDT
>>To: tacos <tacos at amrad.org>
>>Subject: how to drill pipe!
>>The problem: I would like to construct a low cost VHF-UHF yagi handheld
>>antenna, similar to the popular arrow antennas used for LEO work. For
>>I want to use a short section of PVC pipe. Antenna elements are made
>>from heavy solid copper
>>wire that I hammered straight. Problem: how to drill holes in the PVC
>>that (1) are
>>straight and lined up and (2) that passes through the center line of the
>>PVC. The holes I drill are
>>about the same size as the copper wire rods. I use the PVC pipe to
>>snuggly fit the element in place, a kind of pressure fit. If the hole
>>on either side of the PVC are drilled
>>with any error then (1) the element will not pass throught the PVC
>>center line and
>>(2) the element will be randomly off-angle, which looks really bad when
>>all the elements are assembled. My first inclination is that this
>>shouldn't be hard. But, it is! Any ideas?
>>Tacos mailing list
>>Tacos at amrad.org
>Tacos mailing list
>Tacos at amrad.org
........ Alex Fraser N3DER .........
......... beatnic at comcast.net .......
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