Correct way to setup dust extractor

TQKez 0

So I managed to repurpose an industrial wet/dry vacuum I had here that had a broken switch.
I removed the switch and put a relay board in its place and have the trigger set via spare exp.heater4/5 assigned to fans F4/F5.

At the moment, I'm just triggering it on and off with a macro and that works great.
I'm guessing there's a 'proper' way to have this switching on at the right times though.

e.g in the Ultimate RepRap Post-Processor script, I can see this which appears it would issue an M7 command

// dust collector is not in use. If got a controlled one, uncomment below
// if (properties.useDustCollector) {
// writeBlock(mFormat.format(7)); // turns on dust collector
// }

Google that I can see it's usually used for coolant, but similar use case so appropriate enough.

Is M7 the standard way dust/chip extractors are activated?
If so how would I tell the Duet that my dust extractor is activated by switching on a fan (F4 in my case)?

jay_s_uk

@TQKez-0 M7 isn't supported by RRF, but you can add support for it yourself.
just create a file called M7.g and put it in sys, with whatever you want to happen as its contents.
Then, when M7 is called, the contents of that file will be processed.

TQKez 0

@jay_s_uk said in Correct way to setup dust extractor:

@TQKez-0 M7 isn't supported by RRF, but you can add support for it yourself.
just create a file called M7.g and put it in sys, with whatever you want to happen as its contents.
Then, when M7 is called, the contents of that file will be processed.

Oh thats great!