Re: Machining question

You will be surprised I did not machine any part in this engine. It
is a partially static engine. This is one of the hard to find engine
kit made by Marushin. All parts are cast and the detail is awesome.
It works of compressed air not through the pistons but through the
transmission. The transmission also has the fins to create the sound
of the real engine. It has a accelerator pedal that controls the air
pressure to control the speed. It has everything functional crank
shaft, timing for 12 valves etc....It would indeed be a machinist
dream to machine a engine like this.
Here are some more pictures I found on the web.
http://breuhan.frostbyte.com/models/featured/working/porsche.html
Since this is off topic I'll stop here and feel free to email me off
this list regarding the engine.

Thanks
Kim

--- In CAD_CAM_EDM_DRO@y..., dazedNconfused <tattoos4unme@y...> wrote:
> that is simply amazing work! icant beleive thats a
> real scaled down working engine.very nice work.
>
> how long did it take you to build that thing??
> did you make all the parts for the engine? and where
> did you find a distributor that small??
> does it really work as shown in the video?
> because , if so.im dumbfounded by the complexity of
> that little machine!
>
> great job
> --- Tim Goldstein <timg@k...> wrote:
> > It looks small enough that lost wax would also be a
> > strong contender. If you
> > are determined to machine it I would do the uprights
> > that replace the brass
> > tubing as there own pieces just like you do now.
> > Then join it to the cross
> > bar. Machining the cross bar is straight forward.
> > For the uprights I just
> > tried it by modeling the upright in Rhino and then
> > exporting as a .stl file.
> > I then tried doing the spiral toolpaths in StlWorks,
> > but it did not give me
> > a proper path. I then took the .stl from Rhino and
> > opened it in Vector
> > NURBS. Saved it back out of Vector as a .stl and
> > once again into StlWorks.
> > Generated the spiral tool path and saved it as a
> > .dxf. Opened the .dxf in
> > Vector and generated the rotary code from there.
> > Checked it out with
> > Discriminator and it looks great. Seems like it
> > would cut just fine.
> >
> > Tim
> > [Denver, CO]
> >
> > > Lost foam cast it.
> > >
> > >
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