Welcome to the SeeMeCNC Community

I just built my Rostock last week and have been truly impressed with the printer and with the amazing build manual!! During the build I noticed the Fan 1 connector on the Terminal Block was not being used. I ran an extra 26ga wire through the Y axis tower, hooked it up to the Fan 1 connector and had the "bright" idea to use it to power an LED ring on the Effector Platform. Now that it's together and I have my LED ring installed, I am not finding how to enable it in the firmware. I have been hunting around a lot and have not found the right solution. My ideal solution would be to have the light turn on when the hot end is on, just like the PEEK fan. It can't be too hard to get that to work right.......


In Configuration.h I found if I change:

#define EXT0_EXTRUDER_COOLER_PIN 7
to
#define EXT0_EXTRUDER_COOLER_PIN 6

at the end of the Extruder Configuration section, the LED light will turn on when the Hot End turns on, but the PEEK fan will no longer run.


In pins.h I found if I change:

#define FAN_PIN 8
to
#define FAN_PIN 6

in the RAMBo Pin Assignments section (MOTHERBOARD 301), the LED light will turn on when toggled in MatterControl, but that is only useful when doing ABS prints.


I was thinking it would be possible to somehow enable power to RAMBo Pin 6 at the same time it is enabled for RAMBo Pin 7, but I just haven't figured out where to do that yet. If anyone has any suggestions I would be very excited to try them out. Thanks!

Just to simplify you could just hook it to the peek fan so it would only come on with the peek fan.

Wasn't the answers you were looking for but worked for me.

I also have my LEDs connected to my PEEK fan.

But if you want to try and turn pin 6 on, send the gcode for on and for off.

I read that at times the LEDs can flicker when connected to the PEEK fan power so I thought it might work better running on it's own circuit.

The Gcode for turning the light on and off is great. I setup two Macro Buttons so it only takes a click to turn them on and off. Not quite the 'automatic' solution, but one click seems pretty darn slick and the peek fan and layer fans work as normal!

Thanks for all the help!

As a follow up, I also put the G-code into the Mattercontrol, Slicer Settings, Printer, Custom G-Code settings so now it does automatically turn on and off when my print job starts and finishes! Thanks!

Bradley wrote:As a follow up, I also put the G-code into the Mattercontrol, Slicer Settings, Printer, Custom G-Code settings so now it does automatically turn on and off when my print job starts and finishes! Thanks!

Glad you got it working the way you wanted it too!