I upgraded my 130W 1200x900 laser to Smoothie,

Controllers Smoothie
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1

I upgraded my 130W 1200x900 laser to Smoothie, and I’m delighted so far - definitely a huge upgrade over the Leetro controller.

I’m having trouble with laser power, however, it’s very confusing. I can’t seem to get the laser above 30% or so using S0.x commands.

Using a terminal to connect to Smoothie, I’ve been cutting lines using code like:

M3 0.2
G1 X10 F500 (I’m in G91 relative mode)

When I do this I monitor the current the laser is taking - it maxes out at about 10mA at about 30% power (S0.3). After that, increasing the S parameter has no effect.

laser_module_maximum_power is set to 1.0

FURTHER WEIRDNESS: When I use test mode, i.e.

fire 50
G1 X10 F500

I get much more power, it increases all the way to 50mA at 95% power.

Any tips?

2

How is your smoothie connected to the LPS? What LPS, what power laser?

3

Hey.

Note laser power isn’t linear.
But what you describe could be due to the way it’s wired, have more info on that ?

4

M3 0.2 is not a legal gcode command. The S1.0 goes on the G1 line usually.