Laser module does not fire up/turn on
Posté : 08 févr. 2024 00:15
Hi,
I have installed a laser module to my cnc (v1.0 grbl board) but can't get it working. Reading the manual, I have updated STM32 firmware with the one form "Easy Install", upon checking the versions it says 1.1f dated for 2018 (I don't know if this is correct as the manual says that it should be later than January 15, 2020. On the other hand, I don't see version on github other than 1.1f). I did the reset and checked $32=1 and this is correct. Later, downloaded lasergrbl, prepared the file and saved the program. I've put the file onto sd card, installed in the cnc and fired the gcode. All started without any issues except the laser
Now I don't know if the file compiled for download in easy way is set up correctly with #define DEFAULT_LASER_MODE 1 or I am doing something wrong?
The laser I bought is LM-C80-24V(not to install seprate PSU) from here:
https://pl.aliexpress.com/item/10050058 ... pt=glo2pol
It should handle PWM 0/5~12V, 0~5kHz.
I have connected the power to the laser directly from the CNC PSU (24V, GND), it says it can deliver 15A of power, so should be sufficient to provide additional 1.7A for the laser at ease. Also, I connected PWM wire from the laser directly to the GRBL board into spindle PWM and spindle PWM GND pin to the PSU GND as per schematics.
Other than that, I tired to upgrade the ESP32 firmware, but it throws a lot of errors reagrding SD card and wifi config files and it does not even finish compiling. I doubt that TFT FW may have any impact on this issue, but was worth to try, unfortunatley with no luck. If this can have an impact, I will upload the errors here, if not, I will maybe open new topic later.
The laser itself gets the power as the fan spins and there is an LED that lits up.
I personally don't see a reason to install a separate PSU for the laser as in manual (I assume this is because of the default CNC 24V vs 12V laser), but maybe I am wrong?
Tomorrow I will check if the PWD and GND pins on GRBL board provide any voltage while gcode is running to exclude laser fault.
I will be very grateful for any tips on how to proceed further
I have installed a laser module to my cnc (v1.0 grbl board) but can't get it working. Reading the manual, I have updated STM32 firmware with the one form "Easy Install", upon checking the versions it says 1.1f dated for 2018 (I don't know if this is correct as the manual says that it should be later than January 15, 2020. On the other hand, I don't see version on github other than 1.1f). I did the reset and checked $32=1 and this is correct. Later, downloaded lasergrbl, prepared the file and saved the program. I've put the file onto sd card, installed in the cnc and fired the gcode. All started without any issues except the laser
Now I don't know if the file compiled for download in easy way is set up correctly with #define DEFAULT_LASER_MODE 1 or I am doing something wrong?
The laser I bought is LM-C80-24V(not to install seprate PSU) from here:
https://pl.aliexpress.com/item/10050058 ... pt=glo2pol
It should handle PWM 0/5~12V, 0~5kHz.
I have connected the power to the laser directly from the CNC PSU (24V, GND), it says it can deliver 15A of power, so should be sufficient to provide additional 1.7A for the laser at ease. Also, I connected PWM wire from the laser directly to the GRBL board into spindle PWM and spindle PWM GND pin to the PSU GND as per schematics.
Other than that, I tired to upgrade the ESP32 firmware, but it throws a lot of errors reagrding SD card and wifi config files and it does not even finish compiling. I doubt that TFT FW may have any impact on this issue, but was worth to try, unfortunatley with no luck. If this can have an impact, I will upload the errors here, if not, I will maybe open new topic later.
The laser itself gets the power as the fan spins and there is an LED that lits up.
I personally don't see a reason to install a separate PSU for the laser as in manual (I assume this is because of the default CNC 24V vs 12V laser), but maybe I am wrong?
Tomorrow I will check if the PWD and GND pins on GRBL board provide any voltage while gcode is running to exclude laser fault.
I will be very grateful for any tips on how to proceed further