Multus Air blow

[ChattaMan]

So, today's issue is how to get the air blow to work on the mill spindle.
Machine is Multus B400-W with P200L control.

Had a problem with a dimesion being way off, intermittently. After a short investigation I found some swarf indentations on the C8 Capto mating face of the tool. The tool is a 3mm face groove and it does follow a boring bar. There is an issue with stringy turnings and think it may be these that are getting trapped. Although it never happens when you watch it

There is a small tube on the mill spindle pointing at the tool. But I can't find the M code to do an air blast from this tube. It would be helpful to do an air blast while rotating the mill spindle before a tool change
I usually find posting a quick question on here is simpler than hunting through the manuals or ringing service.
Any ideas?

I saw a vid on youtube that showed this. I'll see if i can find it.

[ChattaMan]

See tool air blast at 20sec.

[budgieW]

Thru air is an option. If you do not have the option then the air blast will only work for 30 odd seconds. Without the option it is then deemed that thru air is only for cleaning the tool as the rotary union is different

[RWACKO]

M869 M868 ON OUR MULTUS

[ChattaMan]

@RWACKO
Thanks I'll try that one

M51 was thru air blast. M155 was also the same. So it seems like we have the option, although I didn't time it for 30sec. It certainly fogs the place up!

Photo is damage to tool holder

[cncDecoder]

Hello ChattaMan,
I run a Multus B400, we initially had trouble with swarf interfering with tool change.
I use a macro LIB file to run the tool change, which spins the tool with coolant wash on and with thru-tool air running.
Though I found for the M869 spin to be effective, I had to increase the jog speed in the parameters. The default speed, as shown in the youtube clip, wont do alot.
I originally had thru-tool coolant running thru this tool wash, but then thought changing to thu-air would clear the thru-tool of coolant - but know that this will take at least 20 seconds which isnt efficient (cycle time increasing) - especially if you are running the high-pressure coolant option.
Only enough time to clear swarf is what I use now.

I have also seen this code on another post.
Set up in M341:
*
OM341
(CLEAN THE SWARF OFF THE TOOL)
VS88=VMTTL
IF [VTTLN[1] EQ VS88]NLP1
G20 HP=4
T1000
M869
M263
M175
M174
M51
G04 F6
M868
M262
M50
M09
NLP1 M321
RTS
*

Hope this helps!

[ChattaMan]

@RWACKO
Thanks that was just what I was looking for and it rotates the tool too, nice. The M689 works a treat. It also blows while doing the rapid move back to the tool change position, so there's no time wasted, waiting to finish blowing before moving. It also continues blowing as the B axis moves from T3000 to T1000

@cncDecoder
Ahh so you can make it spin faster eh. Good idea. Thanks for the OM341 prog, I'll utilise that one.
What is M263/262?

Also whilst we're talking M codes...do you know the code for external coolant for a lathe tool. With a Mill tool M8 turns on external coolant and M175 the thru coolant. With a Lathe tool, M8 is thru coolant but I can't find the code for external coolant. Any ideas?

Pic is of the job I'm doing

[cncDecoder]

The M263/M262 is for chip wash on the tool. (M262 = Off)
The coolant nozzle on the spindle body face, facing the Capto grooves is activated via M263 - this should also activate the other external coolant nozzles on the spindle-body face.
For your turning tools, activating the chip-wash on the cutting conditions window in IGF should activate M263 - ie. external coolant.
Alternatively you can set this up on the expand settings window in IGF (P200 advanced one touch). This is also where you would turn on high pressure (M144) should you need/have it.
If your expand settings window does not show what you need - you can change via the IGF parameters.
Same as per the M341 - once set & registered as a libary M-code, change the IGF tool-change parameter m-code from M321 to M341.

Any problems, I will be back on the multus in 20 hours and will be able to get you screen shots.

[ChattaMan]

Nice one. I'll try the M263/262 on Monday. This is only the second job I've done on the Multus so everything is new to me. My two week training didn't get onto the IGF programming so I've not looked at that yet. I'll take a look at the manual.
Also we don't have the high pressure coolant option.

[ChattaMan]

M263/262 external coolant worked, brilliant.
Thanks :-)