Topics created by ddeflyer

Sorry to keep replying to my own posts here, but I have made some more progress, and now have it working completely (as a stand alone trigger anyway). Im just using a microswitch to detect filament so OP your setup might vary a bit.

M950 J12 C"io8.in" M581 P12 T1 S0 C1 M581 P12 T3 S1 C0

So this setup detects running out of filament only when printing, but inserting filament anytime. I made a file, trigger3.g, which runs whenever you insert filament, acts as a filament load script. Filament runs out, print pauses runs pause.g, filament is inserted, it runs trigger3.g, then I click "resume print" and it starts back up. Works like a champ. Still not sure how to use M591, but this is working.

@ddeflyer We generally recommend using an normally closed (NC) microswitch, and should be closed when filament is present. There isn't the option to invert the input on the magnetic sensor.

Most microswitch boards I've seen seem to be Normally Open, for some reason. You'll have to test the output of your board with a multimeter. Alternatively, I think you could connect it as a second filament sensor, then you have more control over the pin used (assuming you're using RepRapFirmware 3), and whether it is inverted or the pull up resistor is enabled.

Ian

@dc42 Thank you!

Thank you, this was very helpful!