Re: Mach III and DeskCNC

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Will" <nmbmxer@y...> wrote:

>
> I have been debating on which of these machine controllers I want

to

> use. My problem is that I really like the Cam and the digitizing

that

> DeskCNC offers, but I am going to run it on a Shoptask machine. I
> really need a lathe contoller. It doesnt have to be a fancy one,

but

> I need to be able to cut threads.

DeskCNC has a lathe mode that supports single point threading. It
works by synchronizing the axis step and direction to a spindle
mounted, quadrature encoder. The coarsest thread is limited to a 1:1
ratio of the quadrature encoder pulses and the machine steps per
inch. Fine threads are interpolated as needed.

If you had a 10,000 spi ratio on the axis, a 500 line encoder X4 for
quadrature, DeskCNC could turn a thread pitch as course as 5 tpi.
The synchronization is electronically geared and you are only
limited speed wise to the encoder reader/mechanical shaft
capabilities ( usually about 10,000 rpm) and the speed of your lathe
Z axis. You can even hand thread if you manually turn the spindle
while the threading cycle is running.

>My question is this, can I use more
> than one type of controller with the DeskCnc hardware? If so,

which

> ones are compatible?

At the present time only DeskCNC software will drive the DeskCNC
controller.

You can use the DeskCNC software to create G-code to program other
CNC machines that are not controlled by DeskCNC. The output from
the DeskCNC CAM software is RS-274D, G-code.

Fred Smith - IMService
http://www.cadcamcadcam.com/hobby