Power output for extra fan

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D3rax
Posts: 139
Joined: Thu Feb 07, 2013 7:54 pm
Location: Netherlands

Power output for extra fan

Post by D3rax » Fri Feb 15, 2013 3:24 pm

Hello,

I noticed that the Up! Plus has an power output on the back, next to the powerconnector. I believe this is for powering the motor of the old fillament loader.

Does anyone knows what volt the output is and if it's save to connect and power an extra fan? Has someone done this already or is there a better way to connect an extra fan?
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D3rax
Posts: 139
Joined: Thu Feb 07, 2013 7:54 pm
Location: Netherlands

Re: Power output for extra fan

Post by D3rax » Wed Mar 06, 2013 10:03 pm

Sorry to bump this post, but I hope someone has an answer :D
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bobwho
Posts: 4
Joined: Sat Feb 09, 2013 10:52 pm

Re: Power output for extra fan

Post by bobwho » Thu Mar 07, 2013 2:11 am

Multimeter would be your best bet, then you can also tell when its energised and when it isnt.

sent from my phone...

mb20music
Posts: 375
Joined: Thu Feb 14, 2013 1:35 am
Location: USA

Re: Power output for extra fan

Post by mb20music » Thu Mar 07, 2013 6:03 am

Maybe check the voltage with a multimeter, but if you do be VERY careful you don't let the + and - probes on the multimeter
touch each other while testing, you could short something out.

D3rax
Posts: 139
Joined: Thu Feb 07, 2013 7:54 pm
Location: Netherlands

Re: Power output for extra fan

Post by D3rax » Thu Mar 07, 2013 3:47 pm

Unfortunately I don't have an multimeter. I hoped someone had already tried it. When I get to I will post my results.
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mb20music
Posts: 375
Joined: Thu Feb 14, 2013 1:35 am
Location: USA

Re: Power output for extra fan

Post by mb20music » Fri Mar 08, 2013 1:07 am

I just checked, the output is 20 volts. The center is the Positive (+).

D3rax
Posts: 139
Joined: Thu Feb 07, 2013 7:54 pm
Location: Netherlands

Re: Power output for extra fan

Post by D3rax » Fri Mar 08, 2013 4:35 pm

Thanx! Not really suited to hook up a fan though
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mb20music
Posts: 375
Joined: Thu Feb 14, 2013 1:35 am
Location: USA

Re: Power output for extra fan

Post by mb20music » Fri Mar 08, 2013 5:26 pm

Well, I guess you can use a 12v computer cooling fan with a resistor, they do make 24v computer fans, it would just
not run at full speed.

benglish
Posts: 24
Joined: Mon Sep 12, 2011 5:45 pm
Location: Los Angeles, CA, USA

Re: Power output for extra fan

Post by benglish » Wed Mar 20, 2013 2:35 am

On my older Up! Plus that port is used for powering the filament feeder (with stepper motor). I pulled this from the User manualV1.0 which seems to pertain to the older brushed motor filament feeder:

NOTE: Different version of the Up printer have different power supply requirements!
1. if the printer has the new mainboard and new feeder, you can just link the printer and feeder with the supplied link cable provided. (Mine)
2. If the printer is in new mainboard and an old feeder, you need to use the supplied 5V power supply for the old feeder.
3. if the printer has an old mainboard with a new feeder, we suggest you use a separate 9V -24V power supply for the new feeder.
The procedure below relates to the oldest version of printer as this is the most complex. The newer printers simply require you to plug in the power supply.

I just measured mine and it's 22.9v no-load. The stepper motor/pcba/led probably draw more current than a fan, so I'd guess you'd be safe, depending on how you regulated the voltage down.

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