Have you guys had any issues getting full power out of your Co2 Laser

Have you guys had any issues getting full power out of your Co2 Laser on smoothie? On my DSP controller 100% power got me about 32ma (I have a 100w laser) which is right where that tube should be for 100%. On the smoothie 100% gets me 23.5-23.9 ma.

Also when the beam ignites there is a blip where it like ramps up power. you can see it in the picture in the arcs. These arcs were made up of tiny line segments so LW treated them as starts and stops, which is fine, but is shows the ignition issue well. The Tube/PS work fine on the DSP so it might be my early rev X5GT from Panucatt.

Max power in my smoothie config is set to 1 and the period is 20.

Trying to track the issue.

I do see the same on arcs with smoothie and a different board than yours. On LW2

One of the things I thought might be the issue was I was using the 5v fan output for the 5v on my logic shifter but I have since changed that out to a dedicated 5v wallwart for the high power side of the shifter.

Unfortunately I have no scope. Or any real idea how to work one :wink:

Well that’s kinda awesome.

Does this seem to happen on acceleration, or on deceleration, or on both ? Can you try shooting a video of cutting a square ?

I can on Tuesday. Out of town until then. Happy to help though! Its definitely acceleration related. You can hear it.