On Wed, 18 Apr 2007 22:26:02 -0700, "Sal M. Onella"
wrote:


"JB MacDonald" wrote in message
...
I know how to find the center of a pipe, using a vee block, but my
question is how do you scribe a line from one end to the other , so the
first hole is in perfect alignment with the last hole .. take for
example a 20 foot pipe , or tubing . If we had a 20 foot layout table
fine , clamp pipe down and use a height gauge to scrib a line the length
of the pipe. if you do not have a line you could get a twist(miss
alignment) but what can a person due that does not have a 20 foot layout
table . Maybe I am being to critical

Take two pipes and tape them together. Run a fat marker down the groove
between them.

Use the second pipe to make another antenna and give it to me.

73
Your pal, Sal

The best answer yet! No special tools involved...
The problem encountered using a level is that you first have to learn
to use a level.

I used to work on a high speed laser printer that was on the 33rd.
floor of a building. Some of the adjustments required the use of a
machinists level. Usually the bubble would wander around a bit. On a
windy day it was down right eerie...

John Ferrell W8CCW
"Life is easier if you learn to
plow around the stumps"