Air assist - Delay Relay

LightBurn Hardware Compatibility
42

I agree.
The dial is on E mode. Double checked that just now to be sure.
Going to follow the wires again.

43

I GOT IT WORKING!!

:tada: :tada: :confetti_ball: :tada: :confetti_ball:

I am not sure what I did wrong… but I took all the wires out and put them back together… and it worked.
I think I switched the polarity somewhere.

But thank you @Stroonzo and @rojhan and @Stan and @Rud

One happy guy here now :slight_smile:

44

Something I thought about today, you should probably put a flyback / snubber diode on the relay coil (maybe like a 1N4007) to suppress the inductance voltage from slapping your controller around.

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Illustrated here in a short video I made:

45

Some relays have this built in. Won’t hurt to add a second one, but no reason for more wiring if not needed. :slight_smile:

46

Well, as you can see in that video that relay doesn’t have it built in (and that’s the exact same relay I used).

47

Hmm did you notice anything strange in its behavior before you thought of this diode solution?

I did see the diode as well in the ultimate air assist drawing in 2 places.