Laser on while connecting

[athulsnair]

Laser is ON for a second while starting laserWeb.

Also can you add m3 and m5 commands while generating gcodes for raster.

[ghost]

If your laser is on during starting it means your hardware has floating pins! Add pulldown resistors! (when we connect, it resets the board, while firmware is not holding the pins in a valid state, they float, which may be enough to trigger your laser)

(Give me more details on what hardware and firmware you are using if you need more help... )

Regarding m3/m5 - same - what firmware are you using/ Can't help you out if you dont log detailed issues (I can't add the if indexof.firmware code without knowing which firmware you have that needs M3/m5? (Lasaurgrbl, marlin, smoothie and the grbl jtech forks all use g0/g1)

[athulsnair]

I'm using GRBL 0.9j with Gshield (pwm from 0-255)

[ghost]

Ok, so for 0.9J - refer to the duplicate bug already logged: https://github.com/openhardwarecoza/LaserWeb/issues/85

For the reset issue - add pulldown resistors to gnd on your laser out pins (or keep laser power off until ready to cut)

[athulsnair]

What I understand from reading that post is it uses modified version of grbl and I'm using original version and I don't have any problem with cutting by uploading a dxf file.(it has m3 and m5 commands and S parameter from 0-255 , that's enough form me).

[ghost]

Ok, will take a look shortly.

[cojarbi]

@athulsnair are you sure u are using Master. 9j and it's power range is S0-255? I'm sure I've tried that and it's 0-10000 based on spindle rpm

[cojarbi]

https://github.com/grbl/grbl/issues/892

[athulsnair]

@cojarbi I changed the config.h file in grbl master . look for #define_max_spindle_rpm in config.h file,by default it's 1000rpm, change it to 255 so that S255 comment will give you 5V on pin 11 (variable spindle should be enabled) Check issue #877 in grbl

[ghost]

M3+m5 added https://github.com/openhardwarecoza/LaserWeb/commit/093233c910843aed856eb4e84078f67ee04b9f31