Hi, I am looking to write a library to add into Marlin. I have created the library in arduino and it works fine, how do i transpose or convert it to work in Marlin?by andy2605 - Firmware - Marlin
I am using a BTT SKR 1.4 Turbo board which has limited additional I/O pins and i would like to use an I2C expander based on the pcf8574 chip to control basic on / off functions. I have the board working with wires.h with a arduino nano without any issues. Can anyone help with pointers to where and how in the Marlin firmware i can define the addtional 8 pins and allow Marlin to control them, soby andy2605 - Firmware - Marlin
Thanks for all the suggestions and help, I have solved the issue. in the pins_RAMPS_14.h file I commented out the 3 lines for the servos //#define SERVO1_PIN 6 //#define SERVO2_PIN 5 //#define SERVO3_PIN 4 and changed the fan pin from 11 to 6. #elif MB(RAMPS_14_EEF) || MB(RAMPS_14_SF) || MB(RAMPS_13_EEF) || MB(RAMPS_13_SF) #define FAN_PIN 6 #else #defiby andy2605 - General
I have disconnected the full graphic LCD and turned it off in the firmware. No difference. The only way to get cura to handle the cooling fans is set them to come on at 0.0 height and 100%. I am running the auto fan for the extruder cooling but that is set to max when it comes on at 50 deg C.by andy2605 - General
I have the red PCB reprap discount full graphic display. I will try without it and see if that works. Still have an issue with the SD reader on it but that is another issue to fix.by andy2605 - General
Is there anyway to turn off pwm on that pin? or overcome the processing limit? or tell Cura only use 100%by andy2605 - General
I am running a MK3 PCB 12v heatbed and a 33A 12v power supply. Seems strange that it prints fine with the fans on at 100% but not at anything less?by andy2605 - General
I am hoping someone might able to help with a strange problem I am having with my Prusa i3 using Arduino Mega and Ramps 1.4. I have built and connected my version of the MightyFan using INFINEON BSO150N03MD G Dual MOSFET, Dual N Channel, 8 A, 30 V, 0.0125 ohm, 10 V, 2 V. The mightyfan works fine, i wrote a quick test sketch for the Arduino to drive all 4 outputs with PWM from 0 to 255 in 25 stby andy2605 - General
Hi All, This is my first printer and so far things are going together without much hassle, i do have 1 probably silly question, when assembling the frame to the y axis threaded rods, do you ensure the rods go right to the bottom of the frame cut outs or leave the frame resting on the bench? The reason I ask is that i am having problems with the z endstop being to low to stop the hotend hittingby andy2605 - Prusa i3 and variants