Connecting cooling fans to Ramps 1.4 May 02, 2014 01:47AM |
Registered: 10 years ago Posts: 11 |
Re: Connecting cooling fans to Ramps 1.4 May 02, 2014 06:38AM |
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Re: Connecting cooling fans to Ramps 1.4 May 02, 2014 08:48AM |
Registered: 10 years ago Posts: 553 |
Re: Connecting cooling fans to Ramps 1.4 May 02, 2014 09:57AM |
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Re: Connecting cooling fans to Ramps 1.4 May 02, 2014 10:09AM |
Registered: 10 years ago Posts: 553 |
Quote
jbernardis
The D9 connection is the preferable way to connect a fan for cooling the printed object. A fan connected this way can be controlled by G Code, and you can tell your slicer when and how fast to run it. This way it turns on and off, at the proper speed, when it's needed.
As far as the RAMPS is concerned, there is a spot for a 2-pin header near D2 that breaks out permanently on 12V. I have installed this header and this is how I power the fan that cools the board itself.
Quote
wangfei
Hi Everyone,
I have 2 issues i would like to address in this post. 1. Extruder motor cooler fan and 2. PCB cooler fan.
My power supply is a hacked PC power supply, which just have a switch added to control on/off so it is not controlled by software.
1.: I have connected a 40 fan (glued on back side of my extruder motor) to D9 and it works but changes the rpm according to temp., but i am looking for a more simple solution, where the fan is simply cooling all the time running maybe 30% speed. Does anyone have a suggestion how to do this ?
2.: I have connected a 60mm fan directly to the 2 pins next to D2 (i don't know their real number or name), The fan is cooling the PCB fine all the time at what ever speed the fan has and it works, but when print job has finished this fan keeps on running until main power supply switch is flipped. Does anyone have an alternative way to connect this maybe even with the possibility to control speed but most important to be able to stop it together with print job with a command in End G-code ?
Re: Connecting cooling fans to Ramps 1.4 May 06, 2014 01:19PM |
Registered: 9 years ago Posts: 2 |
Re: Connecting cooling fans to Ramps 1.4 May 11, 2014 12:30AM |
Registered: 10 years ago Posts: 11 |