Fans on RAMPS 1.4
April 22, 2016 05:34PM
I have swapped from an ANET board after it burnt out.

I have connected the print cooling fan to D9 - I presume this fan is controlled via GCode in the print ?

I also have the fan for the extruder - where do I connect this on the board ?

Thanks in advance.
Re: Fans on RAMPS 1.4
April 23, 2016 12:05AM
The fan for the extruder needs to be on all the time so should be connected to the main power line.
Re: Fans on RAMPS 1.4
April 23, 2016 02:49AM

So just wired direclty in to the 5A or 11A power input ?
Re: Fans on RAMPS 1.4
April 23, 2016 03:03AM
if using marlin have a peek configuration Adv.h

there's a nice little feature to control the hotend fan.

// Extruder cooling fans
// Configure fan pin outputs to automatically turn on/off when the associated
// extruder temperature is above/below EXTRUDER_AUTO_FAN_TEMPERATURE.
// Multiple extruders can be assigned to the same pin in which case
// the fan will turn on when any selected extruder is above the threshold.
#define EXTRUDER_AUTO_FAN_SPEED   255  // == full speed

if you dont use a Heatbed could use that pin..but most of us do, so one ready made solution fan board

Edited 1 time(s). Last edit at 04/23/2016 03:09AM by jinx.
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