tool change

[Chao]

Hi,

I am not sure what will happen to machine if a tool is called more than 1 time without other tool call between in NC program, like this:

 

.....

T2M6 (NOTE, THIS IS #1 CALL)

.....

.....

T2M6 (NOTE, THIS IS #2 CALL)

.....

.....

T2M6 (NOTE, THIS IS #3 CALL)

.....

.....

T2M6 (NOTE, THIS LAST CALL)

.....

.....

T8M6

.

.

 

the question is that the machine will skip #2 to #4 call?

 

thanks,

 

Chao

[Matt Berube at Ferron Mold]

I believe it depends on your machine. We have 2 Fanuc controlled machines. The one with OM control will get all goofed up. Basically, following your example, it will keep exchanging T2 and whatever was in the spindle before the first T2 call.

 

Our other Fanuc control (not sure of the model but newer than our OM) handles this perfectly. It will just ignore the extra T2's because it knows T2 is already in the spindle.

 

You'll have to try it and find out...

[Reece L Gibson]

Depends how old the machine is, whether is stages tools or not.You going to find a lot of response to this one.

What I have seen, if the Machine tool does not pre-stage tools,it will return to tool change position, orient the spindle, find that T2 is in the spindle,Depending on what information is in .....

It might go back to the part,? spindle may start, it might not.

 

If the Machine tool pre-stages tools, depending on the logic of the controller, it might lock up the tool changer,it might switch tools, it might alarm out.

[tryon]

Fadals will go to the toolchange position and orient.

Mazaks will ignore the call.

[crazy^millman]

I would recommend a Mi switch in the post if you want somE activity to happen so you can decide at a specfic point where and how you want to handle this spefic event. You can add a G00G91G28Z0 then G91G29Y0 if you want the table to come back to the front. You could use some high workoffset and use that as a reference point or change point or stop point whatever. I don't add anything about wHAT the machine will dO becuase I feel that is covered I only offer this so you have a understanding Mastercam is very customizeable and though there are limits it can do some very trick and complex things to help you out on the machine to make your life and others lives easier.

 

HTH

[Chao]

I like the posting style the above 3 guys do.

 

I believe Mazak works as tryon told. The control is Yasnac for Musuura.

 

thanks again,

 

Chao

[jeff]

I've ran a few different machines and they all react differently to tool changes like that.

I always put everything on their own block:

N100(FIRST OP)

G00G40G80G90

G54X0Y0S500M03

G43H1Z.1

/M08

T2

XXX

XXX

XXX

XXX

G91G28Y0Z0

M01

M06

N200(NEXT OP)

etc...

[Reece L Gibson]

You are Welcome Chao