Mpmaster post question

[gms1]

I recently added the code for turning coolant off with last Z move from the Mpmaster post. Now I cant figure out how to get it to NOT output the coolant off command on a null toolchange. How can I get it to not output the m8/m9 at null tool changes?

 

Running V8.1.1

Modified Mpfan post

 

Greg

[Charles Davis]

I think you want the coolant command at the pretract postblock, not the ptlchg0

[Allan Brown]

Turning off the coolant early is actually quite complex. Check out the line that accomplishes this:

 

if cool_zmove = yes & (nextop=1003 | (nextop=1011 & t<>abs(nexttool))), coolant = zero

 

Let me translate:

 

if the switch to enable feature is on

 

and

 

the next operation is the end of file

or

the next operation is a tool change or null tool change and the current tool is not equal to the next tool based on a buffer file that I've written out (making it a true tool change rather than a null tool change)

 

then turn the coolant string selector variable off

 

The problem is that gcode 1011 is used for both a full tool change and a null tool change. You may be missing the create of the buffer list of tools (including null tool changes) that is queried to assign the value to the user-defined 'nexttool' variable.

 

All that for an M09 one line earlier...

[bstrasser]

I tried unsucessfully to do what you did. Now it's obvious to me why I could not do it.A big thank you to the post writer on this.It's perfect for me.

[gms1]

Thanks for the reply Dave, the defintion to that line is what I really wanted! (I was banging my head trying to figure out what the heck 1011 meant )

Gonna try this out today, im pretty sure I did remove a buffer... buffer5 to be exact, cause I didnt think I needed it. I thought it was for metacut/predator stuff. Back to work, i'll check in later.

 

Greg

[Allan Brown]

Buffer 4 is used in Mpmaster to capture tool numbers at all full tool and null tool changes.

[gms1]

Geez....

Well I found something I was missing

 

toolcountn = toolcount + 1 # Index!

toolcountp = toolcount - 1 # Index!

 

Lol! can't believe I didnt see that. Now its almost fixed, just seems like something I have defined is different from yours. Now, the coolant will turn on at pzrapidout, for no reason. like this...

 

G1G40Y3.3758 plin plinout

G0Z.1M8 pzrapid prapidout

X-2.6324Y2.7319 ptlchg0 prapidout

G1Z-1.F100. plin plinout

 

I know its something simple, I will find it!! At least now it doesnt turn on and off at null tool changes. Thanks a bunch Dave!

[gms1]

Well I can't figure it out. I posted it on the FTP as dolphin.pst if anyone wants to take a peek. It has something to do with my prapidout/pncoutput definition, but I can't see it.

 

Greg