Re: [CAD_CAM_EDM_DRO] bdi-4.16 EMC -- Help with Config of Graphics

Hi Dave,

Thanks for the example. At a much slower rate, I understand that axe
handles (flattened handle) are (used to be?) made with a copying lathe
of some sort. The cross feed was "modulated" on a spindle cyclic rate.

I can't think of any application for us hobbyists.

Alan KM6VV


David A. Frantz wrote:

> Hi Alan;
>
> Actually technology similar to this is used for a number of things. I
> do remember one company turning pistons just slightly out of round so
> that they would expand evenly when heated up. Not really up on the
> details. Things like cutting optical toruses are at times done this
> way. Of course things like this are often patented so you don't hear
> alot about it.
>
> It certainly is not usefull in a world where you strive to get round
> features but there are places where roundness isn't correctness.
>
> Dave
>
>
> On Wed, 2005-03-02 at 12:12 -0800, Alan Marconett wrote:
>
>>Hi Jon, David,
>>
>>OK, I know the sound card is just a chip with registers to write, so one
>>could change the pitch, etc. EMC's buffering of moves would make it
>>complicated indeed (for that matter, how can it thread?).
>>
>>But what I'd like to know, is why one would want to sync a voice coil
>>with the spindle? some kind of rotational correction for out of round?
>> Is this done?
>>
>>Alan KM6VV
>>