Comments (6)
nebarnix
commented on July 28, 2024
Any PWM output will work. It would be whatever output you have mapped to your cooling fan, but you must have a laser driver that can give a constant current for each PWM level. You cannot, for example, just hook a laser diode directly to the TTL pin.
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nebarnix
commented on July 28, 2024
If your shield is running GRBL, then you should use the fork here https://github.com/McNugget6750/img2gco
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Gruniek
commented on July 28, 2024
Thanks a lot!
I think there are errors in his code, look :
...
G1 X25.1Y25
X25.2S238
X25.3S238
X25.4S238
X25.5S238
X25.6S238
X25.7S238
X25.8S238
X25.9S238
X26S238
X26.1S238
X26.2S238
X26.3S238
X26.4S238
X26.5S238
X26.6S238
X26.7S238
X26.8S238
X26.9S238
X27S238
...
i dont see the laser modulation, or he run with the X travel Speed ?
( and he need a space between the XdataSspeed? -> Xdata Sspeed
cheers
2017-05-17 19:08 GMT+02:00 Nebarnix <[email protected]>:
… If your shield is running GRBL, then you should use the fork here
https://github.com/McNugget6750/img2gco
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nebarnix
commented on July 28, 2024
GRBL uses the spindle speed command S to set the laser speed, instead of the M106.
Actually, gcode doesn't care about spaces -- they're just for people :D
Are you using Marlin or GRBL (or some other) firmware?
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nebarnix
commented on July 28, 2024
It seems that some gcode tools still need the spaces, so I have not removed the spaces because it breaks previewing tools....
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Gruniek
commented on July 28, 2024
Hi
OK for the space, i'm just maniac :p
For the laser, i use only the GRBL with an arduino uno and the CNC Shield
V3.
i prefert with the space ;P too clean to read (troubleshooting)
what type of laser you use?
I need the laser for print PCB ( https://www.youtube.com/watch?v=4SNkzoOvoD8
)
i look for a simple TTL 2500mW 445nm, what do you think ?
2017-05-18 16:19 GMT+02:00 Nebarnix <[email protected]>:
… It seems that some gcode tools still need the spaces, so I have not
removed the spaces because it breaks previewing tools....
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