Re: [CAD_CAM_EDM_DRO] Re: speaking of Hardinge

Hi, kje_67,
You should be able to set up the punch with a simple
drilling cycle, G81 code, I believe.
Start with Z-axis at 0.1, or some positive value, and at
every X-axis/Y-axis co-ordinate, actuate the punch solenoid
everytime the Z-axis becomes minus. Is your punch-press a
mechanical clutch, or hydraulic? (I used to program &
operate a W.A.Whitney 647C Plasma-punch, which used
Hydraulic punching pressure.) You may have to
'synthetically' time the feedrate of the drill cycle, to
allow the punch to withdraw before moving to the next
co-ords. Also, have either an electronic fence, or a
two-palm button operator's panel, or some other form of
protection of yourself! Contact me off-list, if this gets
too commercial.

RayHex (the other Ray. H.)
jnr@...

----------

> From: Ray Henry <rehenry@...>

SNIP

> > (from kje_67):
> > Also have a Strippit 38 station turret punch (51/30).

So many

> > inputs... something like 50+. Industrial Drives DC

brushless motors

> > with their amps, and BEI Motion Systems H25 encoders.

1970's era

> > machine.
>
> I looked at fitting one of these that had a GE 1050

control. The biggest

> problem that I saw was that you'd have to write all of

your own routines

> to handle setting and rotating the tooling.
>
> > Assuming I can somehow understand all this stuff-

tyring to figure

> > out how to get the Hardinge up and running, I'd like to

do the EMC

> > thing with the Strippit. However, it doesn't appear

anyone has done

> > this before. (?) A CNC punch, that is. Further, it

appears that I

> > might have a problem using EMC, anyway- missing codes

from the

> > interpreter.
>
> Missing in the sense that the EMC interpreter wasn't

written specifically

> for a punch press. It will handle most any motion that

you could

> imagine. It would be very difficult to conform the EMC

interpreter to

> take a stock punch press file and run it. However, it is

possible to

> write a post processor that would convert a Strippit

program to the

> interpreter that is currently available with the EMC. I

do know of one

> setup that is using some angular geometry broaches to

clean out corners.

> This machine would be more complex but the idea is

similar.

>
> What I'd do to get my head around the problem is take a

bit of an

> existing punch press program that you have numbers on the

tooling

> geometry and figure out how to translate it into a basic

g-code program

> that could do the same thing.
>
> > It's actually the Strippit that was the motivator for
> > digging into retrofitting CNC equipment, but I have

since decided

> > that I'd be happy just to be successful in getting the

Hardinge up

> > and running. The Strippit is still operational, using a

Northern

> > Control Systems MTC-1000v2 controller. I have just

about all the

> > documentation one could one want on it, but I'm not

much of a

> > programmer, so I think this one might fall by the way

side.

> >
> Good. Keep thinking.
>
> Ray