<![CDATA[SoliForum - 3D Printing Community — extruder motor fan (pins) not working]]> https://www.soliforum.com/topic/13388/extruder-motor-fan-pins-not-working/ Wed, 13 Jan 2016 19:45:39 +0000 PunBB <![CDATA[Re: extruder motor fan (pins) not working]]> https://www.soliforum.com/post/114060/#p114060 driggers wrote:
carl_m1968 wrote:

where the power supply wires go into the board at.

I know where that is.


carl_m1968 wrote:

the power supply output

I'm not sure where that is.

They are equivalent in this case. Your PSU has only one output line. Plug the fan into your board's power input along with the original power supply cables. Don't forget that fans are polarity sensitive.

]]> Wed, 13 Jan 2016 19:45:39 +0000 https://www.soliforum.com/post/114060/#p114060 <![CDATA[Re: extruder motor fan (pins) not working]]> https://www.soliforum.com/post/114057/#p114057 carl_m1968 wrote:

where the power supply wires go into the board at.

I know where that is.


carl_m1968 wrote:

the power supply output

I'm not sure where that is.

]]> Wed, 13 Jan 2016 19:17:28 +0000 https://www.soliforum.com/post/114057/#p114057 <![CDATA[Re: extruder motor fan (pins) not working]]> https://www.soliforum.com/post/114052/#p114052 driggers wrote:

Unplugging the fan with power on can hurt it?  I didn't know that :s

So I can just connect the leads straight to any +12v and ground on the board?  Can I do that with 2 fans?


No you connect the fan straight to the power supply... Yes you can do this with to fans. If you start trying to tap off 12 volt lines on the board you may blow something else out. Either add wires from the power supply output or make your fan connection where the power supply wires go into the board at.

]]> Wed, 13 Jan 2016 18:50:05 +0000 https://www.soliforum.com/post/114052/#p114052 <![CDATA[Re: extruder motor fan (pins) not working]]> https://www.soliforum.com/post/114045/#p114045 Unplugging the fan with power on can hurt it?  I didn't know that :s

So I can just connect the leads straight to any +12v and ground on the board?  Can I do that with 2 fans?

]]> Wed, 13 Jan 2016 18:15:11 +0000 https://www.soliforum.com/post/114045/#p114045 <![CDATA[Re: extruder motor fan (pins) not working]]> https://www.soliforum.com/post/114043/#p114043 Easiest fix is to just connect up to 12v from the PSU.  Something probably burnt out when you unplugged it with power on.

]]> Wed, 13 Jan 2016 16:50:23 +0000 https://www.soliforum.com/post/114043/#p114043 <![CDATA[extruder motor fan (pins) not working]]> https://www.soliforum.com/post/114020/#p114020 I have an SD2 with the sanguino(lolu?) board.

My extruder motor fan pins stopped working.  Just prior I had unplugged things and plugged them back in whilst attaching a printed cable chain.  The fan does work when I attach it to a normal 12v adapter.  The printer works otherwise.

What's wrong and what to do?

]]> Wed, 13 Jan 2016 09:49:10 +0000 https://www.soliforum.com/post/114020/#p114020