Re: [CAD_CAM_EDM_DRO] Re: Electronic Lead Screw & Power Cross Feed | Poor Man's CNC ?

Threading on a lathe has never been easier with CNC and Mach3
All you do is go into Mach3, select threading wizard, enter the few
variables that you would have to know if you were going to manually machine
the threads then ppress the post button on the wizard and it sends it to the
Mach3 auto portion of the program. With you tool in position press cycle
start and watch it make several passes taking exactly the same amount off
each pass except for the spring pass and the other pass.
It can do coarse threads, fine thread, acme, metric and even tapered threads
I have a 13X25 Jet lathe that I retrofitted using my 600 oz in servo motors
of the XZ axis. I can still use the machine in either the manual or cnc
mode. With mach3 I can to things that would be difficult to do with a
standard thread dial or electronic gearing
With Mach3 which you can d/l for free but after you use it for a while
you'll want to get a licensed copy but the demo copy will run 1000 lines of
code. A typical threading operation is only 20-30 lines if that.
Dan Mauch
low cost stepper and servo motors.
cases for Gecko drives
kits and assembled 3-4 axis drives
www.camtronics-cnc.com
www.seanet.com/~dmauch

----- Original Message -----
From: "Alan Marconett" <KM6VV@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, December 06, 2005 10:18 AM
Subject: RE: [CAD_CAM_EDM_DRO] Re: Electronic Lead Screw & Power Cross Feed
| Poor Man's CNC ?


>
> Hi Bob,
>
> You make an excellent case for an Electronic leadscrew! Even 'tho I'm
> coming from a CNC solution on both my Sherline mill and lathe, I can
> certainly see your point. You just want to "soup-up" your lathe, not
> change
> to CAD/CAM/CNC to make your parts.
>
> You've mentioned the FROG; as the Frog can drive large stepper driver
> (Gecko), I suggest you consider adding it that way. A Frog for a big
> lathe!
>
>
> I understand the owner of the Frog business is no longer wishing or able
> to
> consider making frogs, but that some are still available. THIS product
> should serve as a starting point (if not a solution) for the E-leadscrew
> project, in my opinion. Perhaps a technology transfer is in order?
>
> But don't get me wrong, I LOVE having CNC on my lathe as well! I can and
> DO
> "drive it" from the keyboard, either by MDI (Manual Data Entry) or the jog
> keys. Just me! At first all I wanted was a glorified power feed, but I
> soon came to appreciate being able to "command" the axis around from
> keyboard commands. Then when I needed a "fish belly" contour for a steam
> engine piston rod, well... perfect for CNC!
>
> Alan KM6VV
>
>
>> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of BobWarfield
>> Subject: [CAD_CAM_EDM_DRO] Re: Electronic Lead Screw & Power Cross Feed |
>> Poor Man's CNC ?
>>
>> I think the CNC setup is actually considerably more complex than
>> what is contemplated in the strictest sense of an electronic
>> leadscrew and I'll tell you why. It all sounds like a case of "Gee,
>> if I have to hook up a stepping motor anyway, why not just go CNC?"
>> However, let's look at a couple of different reasons why that is not
>> really the case.
>
> <SNIP>
>
>
>
>
>
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