Repeat an operation without restarting

[danfec]

I have an operation that I have to repeat on many piece, just a simple pocket that's going to take a couple seconds only, I don't want my tool holder to go "home" every time, I just want it to retract so I can replace the piece by another one and push start again and again...I know it can be done but I don't know how ?? Thanks for your precious help.

[chip]

What kind of Machine are you running?

[danfec]

Thermwood

[crazy^millman]

The bast way is to use a sub program for the work and use the L for time you want to repeat then at the top sub program have your M00 at the end have your clearence moves.

 

HTH

[Jack Mitchell]

G00 G49 Z2.0 M09

G91 Y0 M05

M00

M99

%

 

It’s a manual edit that should do this job nicely.

 

Regards, Jack

[Roger Peterson]

Place this in your file where you want to jump back to the beginning:

 

GOTO Nxxx

 

where Nxxx is the line # you want to return to.

[JG]

quote:

---

G00 G49 Z2.0 M09

G91 Y0 M05

M00

M99

%

---

I'd recommend using a G90 M00, never really know whats next.

 

Jg

[Jack Mitchell]

quote:

---

I'd recommend using a G90 M00, never really know whats next.

---

The beginning of the current program is next if a branch to another program is not stated.

 

The % or the "end of record" symbol is not even required since the loop will shoot to the top of the current program. I stated % as the last line since many readers require a stop code otherwise the seek would remain active for more.

 

I have done this for many years for the simple fact that I do not want tool changed etc! I only want the fastest turn around time in a production situation - this method assures it for me.

 

 

Regards, Jack

[medaq]

Something like this would start with program 1000

 

Would go into position, call tool height, call up sub program re position its self. end its pocket rehome the y axis. Turn off the coolant and wait for the operator to change the part. Hit cycle start recall the g54 and go back to work.

 

You will need to fit it to your machine but you should be able to get the idea.

 

Jim

 

:01000

 

T1M6

G0G54X0Y0Z.1S8000M3

G43G1Z.1

M98P1001L1000

G0G91G28Z0.

G91G28X0.Y0.

M30

 

:1001

S8000M3

G0G54X0Y0G90

M8

G1Z-.1

X1.0

Y-1.0

X0.

Y0.

G0Z.1

M9

M5

G91G28Y0.

M0(CHANGE PART)

M99

[danfec]

I just tried a manual entry after my toolpath

 

m790

goto n109

 

 

What it's doing : the spindle is still on but my router goes home, what I want is that it goes back to the first operation but not all the way home. And if I push start I receive an error message... I think it's just because my goto is not refering to the good line ...what do you think ?

[JG]

I'm sorry for not being clear, What I meant was that I always try to return the control to it prior state (in this case absolute [G90] mode), leaving it in a Incremental mode might cause unexpected results.

 

thanks,

 

Jg