ed3 v6 lite and rambo

dylantep · Post by **dylantep** » Tue Apr 28, 2015 1:52 pm

Is there anywhere on the rambo to plug in the fan for the ed3 v6 lite and have it run whenever the machine is on? I'd like to put in a part cooling fan in the fan 1 spot and have it controlled separately from the extruder fan

Earthbound · Post by **Earthbound** » Tue Apr 28, 2015 3:21 pm

If you want it to run all the time there is no need to connect to the RAMBo, just feed it from the power supply. If you want to have some control over it, like the stock PEEK fan (turns on with activation of hot end, and stays on afterward until hot end is <50C) then connect it to the green terminal block at HEAT1.

Tincho85 · Post by **Tincho85** » Tue Apr 28, 2015 3:50 pm

You can also connect it to FAN1 and use:
M42 P6 S255 ----> turns fan ON (max power)
M42 P6 S0 ----> turns fan OFF

EDIT: oh missread it... so you are using FAN1? do you have 2 extruders or something?

HEAT1: peek fan. turns on >50ºc
FAN0: layer fan.

dylantep · Post by **dylantep** » Tue Apr 28, 2015 6:30 pm

wiring it straight to the power supply is exactly what I was looking for. (can't believe I didn't think of that)

But now I'm curious. So if I plug the fan in to the same plug as the extruder heat cartridge the fan will automatically turn on the the extruder is >50? Wouldn't this cause the fan speed to vary with the PID?

Earthbound · Post by **Earthbound** » Tue Apr 28, 2015 6:47 pm

dylantep wrote:wiring it straight to the power supply is exactly what I was looking for. (can't believe I didn't think of that)

But now I'm curious. So if I plug the fan in to the same plug as the extruder heat cartridge the fan will automatically turn on the the extruder is >50? Wouldn't this cause the fan speed to vary with the PID?

It's not the same connection. Extruder heater should be wired to HEAT0 and extruder fan to HEAT1.

dylantep · Post by **dylantep** » Tue Apr 28, 2015 7:14 pm

interesting. Well I will give that a try! thank you for the help! Just so I understand better, Is this setup in the rostockmax firmware? I'm assuming if you added a second extruder (not planning on it, just curious) you would want to plug the heater into that HEAT1 spot.

Earthbound · Post by **Earthbound** » Tue Apr 28, 2015 7:44 pm

Yes, the current Rostock Max firmware is configured this way -> using HEAT1 to control the extruder cooling fan. Connections are shown starting around pg185 of the current Max build manual.

I suspect that you could alter the firmware to use FAN1 instead and free up the HEAT1 output for a second extruder.

dylantep · Post by **dylantep** » Tue Apr 28, 2015 7:53 pm

aha, it all makes sense now! Thanks so much for the help and quick responses.

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ed3 v6 lite and rambo

ed3 v6 lite and rambo

Re: ed3 v6 lite and rambo

Re: ed3 v6 lite and rambo

Re: ed3 v6 lite and rambo

Re: ed3 v6 lite and rambo

Re: ed3 v6 lite and rambo

Re: ed3 v6 lite and rambo

Re: ed3 v6 lite and rambo