adding two fans to ramps 1.4
Posted by omarbentaleb
|
adding two fans to ramps 1.4 August 11, 2017 11:40PM |
Registered: 9 years ago Posts: 11 |
Hello guys si i have a ramps 1.4 board running marlin and i want to use two fans one for the extruder and one for the board i've wired the fans as this picture shows but the fan that is connected to D9 dosen't work is there anything that i need to change in the firmware ? thanks.
[raw.githubusercontent.com]
[raw.githubusercontent.com]
|
Re: adding two fans to ramps 1.4 August 12, 2017 12:49AM |
Admin Registered: 13 years ago Posts: 7,000 |
D9 is software controlled. see M106 [reprap.org]
fans have polarity and voltage. Make sure it plugged in the correct way and is correct voltage.
and some fans just refuse to run PWM, some can be modified with a capacitor across the terminals.
Your firmware also need to be configured so D9 is the fan eg #define MOTHERBOARD BOARD_RAMPS_14_EFB
Edited 1 time(s). Last edit at 08/12/2017 12:50AM by Dust.
fans have polarity and voltage. Make sure it plugged in the correct way and is correct voltage.
and some fans just refuse to run PWM, some can be modified with a capacitor across the terminals.
Your firmware also need to be configured so D9 is the fan eg #define MOTHERBOARD BOARD_RAMPS_14_EFB
Edited 1 time(s). Last edit at 08/12/2017 12:50AM by Dust.
|
Re: adding two fans to ramps 1.4 August 12, 2017 01:15AM |
Registered: 9 years ago Posts: 11 |
|
Re: adding two fans to ramps 1.4 August 12, 2017 02:28AM |
Registered: 9 years ago Posts: 11 |
|
Re: adding two fans to ramps 1.4 August 12, 2017 03:21AM |
Registered: 11 years ago Posts: 528 |
|
Re: adding two fans to ramps 1.4 August 12, 2017 03:43AM |
Admin Registered: 13 years ago Posts: 7,000 |
fan on D9 starts when its told to in gcode.
Send the printer a "M106 S255" and it will turn on full speed.
should be always on for PLA, and only on ABS for bridging or really small parts. And even then not on very strong.
This is set in your slicing software.
It will not turn on just when power is applied to the controller.
Edited 1 time(s). Last edit at 08/12/2017 03:44AM by Dust.
Send the printer a "M106 S255" and it will turn on full speed.
should be always on for PLA, and only on ABS for bridging or really small parts. And even then not on very strong.
This is set in your slicing software.
It will not turn on just when power is applied to the controller.
Edited 1 time(s). Last edit at 08/12/2017 03:44AM by Dust.
Sorry, only registered users may post in this forum.