Speed Change

[connormac]

If I program in a RPM change. How do I make sure spindle reaches new RPM before next operation begins. Does that make any sense.

[Metalmuncher]

insert a new line with the m3 command and the machine should take it bofore moving to the next line

What kind of machine?

[connormac]

the way the post is set up all it does is put in a speed change on one line ( S6000). And then start moving.

 

if prv_ss <> ss, n, ss

Should I make it

 

if prv_ss <> ss, n,"M03" ss

[connormac]

I just change My post and it post with this

 

M03 S100

 

Instead of

 

S100

 

Will that ensure that it will hit speed before it starts anything else

[cncchuck]

as long as that spindle speed call up is before the feed lines you want it to change at , it will change to this rpm and continue on.if it is a spindle change in a process and the spindle has been started at the beginning of this process with an m3 code all you have to have is a spindle speed all up (S####) and it will go to the desired change .

[chris m]

Kyle

 

As far as I know, nothing that you post, short of a long dwell, will insure the machine reaches speed before moving. Most machine tools have a parameter setting to 'wait for spindle speed answer' that will hold the machine's position until the spindle says 'OK, I'm ready'. If your machine is not doing this you should break out the parameter book and have a look

 

C

[connormac]

Thanks Chris I will try that.

[chip]

+1 Chris.

Everytime I program a spindle change. The machine waits for the r.p.m. to accomplish the programmed speed. If your next parameter has a spindle adjustment, you should just need a S+000. You could put an M03 no need to though.