>>>>> 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.
    >>>>
    >>>> Paul,  considering a complete engine mount with numerous clusters,
    >>>> how difficult would it be for you to provide me with such
   templates.
    >>>> It sounds like a major undertaking.  The problem is I seldom
   (so far
    >>>> "never") build the same mount twice.    Would the files be
   graphics
    >>>> or CAD?  Could you send me one as a test.  Thanks    Jerry
    >>>>
    >>>> It would be a lot of work. I am not volunteering :)
    >>>> Now if you want to buy Rhino and a PC I can send you the mm files
    >>>> and you can do the templates. The scale templates can be
   printed from
    >>>> jpg files using the screen capture trick or printed directly
    >>>> from Rhino. It takes about two or three minutes for each template.
    >>>> A six tube motor mount would have 12 templates. It is kind of
    >>>> repetitive and
    >>>> tedious work.
    >>>> --Paul Lamar ...No rotor no motor.
    >>>
    >>> I don't blame you.   I don't want to buy Rhino or a PC.  If
   Rhino is
    >>> ported to the Mac (there are rumors) then,  maybe.  It is
   possible to
    >>> fit the tubes and then take off the patterns for next time.   It
    >>> would only work if the thrust lines,  prop to firewall, length
   of S-
    >>> beam, etc.  remained the same.  Very unlikely.     Jerry
    >>
    >>
    >> Jerry,
    >>
    >> The only problem I is getting used to the difference in the cut,
   the 90*
    >> instead of the variable angle left by a notcher.  It doesn't take a
    >> lot of
    >> getting used to, a small adjustment to cut behind where the
   feather would
    >> be, but it does takes some.  Once you're past that, production rates
    >> will be
    >> twice as high as the folks with a notcher.  The plasma cutter is
   a god
    >> send
    >> for those of us that do real fab work.
    >>
    >> Tom

    > Tom, that experiment failed.  The plasma could not be operated at the
    > low levels I needed.  It was way to fast to follow a line.  When you
    > turn down the air, the machine automatically shuts down.  I talked to
    > Hypertherm tech and they said no way.  I know it is possible but not
    > with my machine.      Jerry


   Sorry guys that is a real old messages sent by mistake.


   --
   Paul Lamar ...No rotor no motor.



Dang it..  You got me all fired up..  :)

Matt-

Maybe you guys need to try a water jet.

Paul Lamar

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