>> 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
I'd be happy to be wrong, but I suspect that standing at the jig with a
bucket of cutoff tubing, snips, and an angle grinder is going to be
faster on custom motor mounts.. At least for gas welding - the fit
doesn't have to be as precise as for TIG (or so I hear). If you can get
to a place where the mounts are more jellybean - common parts, then
cutting fixtures make more sense..
It's going to be nice when there's enough commonality between installs
to make motor mounts and such truly bolt on. All this custom stuff is a
major hindrance.
Regards,
Matt-
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