Re: [CAD_CAM_EDM_DRO] could this be done

the idea was to generate the code to travel
forward at a certain pitch stop
then reverse back at the same pitch to the start and repeat
you are not withdrawing the tool
the geckos are just to help keep everything in step
don't they do similar things on a 4th axis on a mill without encoder feedback??
mike

l


Darrell wrote:

>
> It would require an index pulse on the encoder and Geckodrive doesn't have
> an input for that.
> Darrell
>
> ----- Original Message -----
> From: "mgrady" <mgrady@...>
> To: <CAD_CAM_EDM_DRO@egroups.com>
> Sent: Thursday, September 07, 2000 3:13 PM
> Subject: [CAD_CAM_EDM_DRO] could this be done
>
> >
> > I have been looking at lathe threading and been thinking
> > instead of using encoder feedback with limited options ah-ha,
> > microkenetics
> > and expensive at least to me
> > could a lathe be setup with a aux servomotor drive on the spindle with
> > a gecko drive
> > with a quick release belt drive or contractor to switch between
> > spindle motors when you want to cut threads
> > assuming no backlash ball screws and gecko servo drives
> >
> > could a program be written that would when used with this setup
> > that would output the code
> > that you would input your machine parameters and thread info
> > length of thread and pitch, thread depth thread type ect.
> >
> > and have it cut the pitch and then back up along the thread to start
> > infeed the proper amount and repeat
> > you would not need a big servo motor on the spindle as
> > it would be "geared down" a bunch for finer resolution and you don't
> > need much HP or rpm to cut threads anyway you could cut multi start
> > with this also
> > I have no idea about programing this might be a nightmare
> > mike
> >
> >
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>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
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