Subject: Tubing notcher
From: Rotary Engine
Date: 10/13/2007, 4:17 PM
To: AARotary Engine



> Group, I plan to mount my plasma cutter in a fixture in such a way
> that I can feed 4130 tubing under it to cut saddles.  The tubing
> would rest on a receiver which would allow me to move it in and out
> and also rotate it.  I don't plan to follow templates, just silver
> pencil marks  the same as I do now when grinding the saddles. The
> advantage would be that the cut would be perpendicular to the wall
> (grinding and all rotating tools make feathered edges), it would be
> very fast and much cleaner than grinding.  Does anybody see any
> reason why this would not work?    Jerry
>
> Sounds like a great idea Jerry. You could make paper templates
> using 3D and
> transfer the curves to the tubing with silver pencil.
> --
> Paul Lamar ...No rotor no motor.
>
>
> Jerry,
> That will work great. I have had tubes laser cut using a 4 axis
> laser system
> to do the same thing. The squared up edges make a far better weld.
> Even in a
> manual system, you could do hard templates on a larger piece of
> tubing, and
> clamp a guide pin to the part you are cutting. This would allow you to
> replicate a cut very easily and make your parts very `. If you want
> a drawing on how to do this, let me know.
> Larry

Larry,  thanks.  I would really appreciate the drawing.  Jerry

Larry,
You are one astute dude. At my age, have to keep my phone number written
down, or use Vonage.:)

Also will reiterate; Jerry, your new web page is super.You will need an
extra welder soon!

Larry,  would be helpful if I also had a drawing."how to do this." If
you have time?
Boberrorusa


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