Re: [CAD_CAM_EDM_DRO] could this be done

Hi,

I was at Ian Eagland's workshop on the 21st August buying some ball-screws
off him. He has quite a pile of them if anyone in England is interested, he
didn't want to advertise them onlist because he is commercial. Any way this
is off the subject. He is the agent for Ahha software and has a few machines
set up to use it along with the drives from gecko. One of these machines was
a lathe which had an encoder on the spindle and a stepper driving the
lead-screw. I asked about threading, he said that Ahha supports it and this
lathe was set-up to do it.

There is no need to drive the spindle with another motor just link an
encoder to it and use the power of the lathe. There would be no need to
write a program with this set-up

Ian is the one to talk to and I'm sure if you emailed him direct he would be
happy to answer your questions.

Regards,

Terry

> 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