I have tested the laser with a fixed 12v input and one of the 5v pins on the RAMPS board and it fires up and smokes stuff - cool. I have a 3 wire laser, red - apparently +12v, black - gnd and yellow for the signal TTL. I would like to learn how to edit the code, because in this expression: #define SPINDLE_PWM_BIT 5 // MEGA2560 Digital Pin 8. I’ve successfully got my MPCNC running with X, Y and Z axis on Marlin 2.1.1 with a Ramps 1.4 board over an Arduino Mega 2560.The pinout diagram shows the various input and output connections available on the board, including the stepper motor drivers, endstop switches, MOSFETs for controlling the heated bed and extruder, and. The pwm worked on d8, it was necessary to connect a source of 12 I just made a bridge of the main and perfect source, I am using a mosfet irf 540n, to control a 42v spindle connect + to the gate - to the voltage in and the third leg to the spindle negative and the spindle positive direct to the source everything finally works, I no longer need a shield v3 The Ramps 1.4 board uses a standard Arduino Mega 2560 as its base, which provides the necessary processing power to control the printer.The probe did not work in any way, with version 1.1f of your program, I finally found this site where you host the latest versions.So the pin numbers should go higher than 69, which is A15. 0-53 are the digital pins and the 54 is A0, etc. I got quite a few requests to add Arduino Mega 2560 / Ramps 1.4 support to Estlcam and finally found some time to port the firmware. Pin 54 Refers to the Arduino PIN Number, nothing to do with RAMPS. I have never used Arduino before but by reading tutorials etc, I have managed to get four. I am trying to control stepper motors, servos and an LCD panel without using MARLIN Firmware. Hi, first thanks for implementing this necessary firmware for ramps and for responding so quickly: You are right, your have all the information in your question. I have a spare Arduino Mega 2560 with RAMPS 1.4 board and a Reprap Smart controller and LCD that came from a 3D printer. Puede ajustar la potencia máxima más baja que el voltaje de entrada RAMP ajustando el SPINDLE_PWM_MAX_VALUE más bajo que 1024. richyrich140db2000 Participant Hello everyone, I’m having some difficulty getting the hardware to work correctly. Si su RAMP está alimentada por 12v, el SPINDLE_PWM_MAX_VALUE es 1024 y el SPINDLE_RPM_MAX es 1000, entonces la salida máxima de PWM será de 12v cuando se use: ![]() (esos valores predeterminados se pueden ajustar después de parpadear con los parámetros Grbl de $ 30 y $ 30). #define DEFAULT_SPINDLE_RPM_MIN 0.0 // rpm #define DEFAULT_SPINDLE_RPM_MAX 1000.0 // rpm
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