Re: [CAD_CAM_EDM_DRO] could this be done

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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