Re: Digital screwcutting "gearbox"

I Agree with that,

I have a Deskcnc controller that can do threads waiting to be used
on a laser cutter sometime in the future.
but Idon't want to have another PC running machine.(already have a
gantry with deskcnc)
Besides ,If I can do it with microprocessors I can use it in any
future machines with simple functions that don't need a PC hanging
around just to make a simple move like go to that point and stop.
I've just got a south bend lathe clone missing all the gears to cut
threads. got the idea? I could just buy the gears or machine new ones
but that would be soooo simple :-) .

Fogassa.



--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Paul Kelly" <tech@c...>
wrote:

>
> My 2c worth here is to forgo the electronics and use a PC running

something

> like turbocnc or emc. I say this as one who has a knowledge of

electronics

> and builds his own drivers and other gizmos.
> I also think you should then add a stepper to the x axis. It's one

of those

> "Having done this, for a small amount of extra effort you get all

this"

> things.
> With one stepper and a sensor you get an infinitely variable lead

screw. Add

> an additional stepper and it will turn the threads to an exact ISO

profile

> using a single point tool add a shoulder and do many other tasks.
> Even if you just stick with the stepper on the lead screw and a

spindle

> sensor, Turbo CNC on an old dos laptop is much more versatile than a
> dedicated bit of electronics.
>
> All IMHO of course :-)
>
>
> PK
>
> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of GLM590620@A...
> Sent: Wednesday, 19 October 2005 2:51 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] Re: Digital screwcutting "gearbox"
>
> I found a company that used to make such a thing here in the uk

some while

> back, when i contacted them they said that they has some bits left

but not a

>
> complete kit and were not interested in selling any of it, shame

really.

>
> Gavin
>
>
> [Non-text portions of this message have been removed]
>
>
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