RE: [CAD_CAM_EDM_DRO] Re: Cutting the Hex surfaces.

> Subject: [CAD_CAM_EDM_DRO] Re: Cutting the Hex surfaces.
>
>
> Ah-hah, I knew google would know :-)
>
> Go to this web page....
>
> http://www4.profilator.de/dienstleistungen/videos_animation.html/#
>
> then scroll down to the video animation sections called
> POLYGON AND SLOT MACHINING
>
> Look at the video (animation) that is right above the text
> GEAR CUTTING
>
> This animation takes you from fron view, spins around to see it from
> the back side. There you can see how the hex shape is machined.
> The the animation takes you back around to the front where you can
> see how the "lugs" are made on the face of the part.
>
>
> Chris
>
>
>
>
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "lcdpublishing"
> <lcdpublishing@...> wrote:
> >
> > No tricks, no moving X axis, only the Z axis is moving to take
> > succesive passes. There are machines that do have the X axis goin
> > in and out during the rotation of the spindle, but that process is
> > used for turning pistons (as they are not round, but oval). I
> > forget what that is called - sorry, getting old.
> >
> > In polygon turning, the flycutter (the Orange tool in the video)
> is
> > spinning just like a flycutter or even a face mill. The main
> > spindle is spinning the workpiece in the opposite rotation. As
> the
> > fly cutter passes by the spinning workpiece, it creates a very
> near
> > flat surface on the workpiece. The ratio of speed and number of
> > teeth control the number of flats. The ratio between the two
> > diameters (part and cutter) determines, to a certain degree, how
> > flat the surface will be.
> >
> > Programming is incredibly easy...
> >
> > M123 'M code to synchronize spindles
> > G97 S2000 M03 'main spindle
> > S1000 M04 'driven tool
> > G00 X1.0
> > G01 Z-.5
> > G00 X2.0
> >
> > That's it, all the "Magic" is in the rotation of the two items
> (Part
> > and cutter) and their synchronization. The M123 is not the actual
> M-
> > Code nor is M04 for controlling the rotation of the live tooling,
> > but hopefully you get the idea.
> >
> > Remember, this process goes back to screw machines and automatics -
>
> > prior to CNC. So, it all had to be done with: gearing, ratios,
> and
> > mechanics. As insane as it all seems, it is really very simple.
> >
> > Chris
> >
>
>
>
>
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