Laser power and speed settings hack

Laser power and speed settings hack

rodfrey
Contributor Contributor
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Laser power and speed settings hack

rodfrey
Contributor
Contributor

Hi, I've got a 130w laser controlled by GRBL and I found it quite limiting to not have fine-grained adjustment of the power available. Also, I thought it would be nice to have a materials database, as was brought up in a couple other posts.

 

This is my first foray into post processors, so if I've done something silly I'd appreciate hearing about it. 🙂

 

I modified the grbl-laser post to take the tool number as a percentage of power to apply to a cut. For example, if you define a laser tool with a #30, using that tool would apply 30% of power. (This required adding a user parameter for the "full power" number of your particular GRBL installation - 255 by default, but 1000 on my machine.)

 

Now I maintain a tool library where for each material (which I write in the description of the tool), the tool number is the % power and the feeds are set in the tool.

 

image.png

 

I've tested the same approach with the Smoothieboard controller and it works fine there as well.

 

The disadvantage of using these posts is that you don't get updates from the original authors.

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peter.pretsch
Autodesk
Autodesk

Thanks for sharing @rodfrey!

 

Having an option to control the power level of the laser seems like an excellent idea to have available in the post.

 

I have created ticket CAM-8993 to track the addition of this feature.

 

Kind regards,

 

Peter


Peter V. Pretsch
SW Development Manager
Message 3 of 3

criznach
Participant
Participant

Ditto.  If I can't specify laser power, I'll have to use something else to generate gcode for laser.

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