Re: CNCing a Logan Lathe

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "too_many_tools"
<too_many_tools@...> wrote:

>
> I have access to a Logan 11" lathe that while missing some parts would
> be a candidate for CNC conversion.
>
> If it was yours, how would you convert it to CNC?
>
> What manufacturers would you use for the conversion?
>
> Are there any other modified 10"-12" lathes that you would use as a
> model for the conversion?
>
> Thanks
>
> TMT

Change the ACME screw to ball bearing mount, maybe keep the ACME and
use Moglice on the half nuts if the ACME was in great shape. if not,
swap it out for a real leadscrew or a ball screw.

Ditto the cross slide.

put a VSD on the motor with feedback to have a near constant RPM, but
numerical control

a spindle speed sensor

Coolant and a near full coolant lathe enclosure.

pipe oil lines to all the places needed, and to an oil pump.

Depending on the work to be performed, I'd considder steppers or
servos. and also on the work to be performed, a spindle torque sensor.

this last item would indicate a dull tool.

If the unit does not have a Tee slot cross slide, I'd also considder
that. a cutoff tool can be mounted on the far side, as well as other
tooling on the Tee slots.

alternativly, a 4 postion turret tool post. Not sure if they make
these, or if you'd have to design it. but that or a tool changing
system of some sort.

Dave