Hello I’m looking for some help with trying do engraving. I’m using a Hitec 150w co2 laser with a Ruida RDC6445G controller. The material is 1/16" basswood. I’m trying to get a lumber pattern engraving for the decks I’m using in a model ship I’m building. The issue I have is when the laser first fires and at the end of a run are hotter than the middle of the run. I’ve looked through the online documentation and the forums? Any help would be greatly appreciated. Thanks
If these are vector engravings you will probably need to adjust the minimum power on that layer.
The machine is changing speed as changes direction, so it will vary the output between low and high power depending on the speed.
The ‘start speed’ for that axes is in the controller. If your speed is at or below the start speed it will lase at minimum power only.
Good luck
Thanks for the quick response. First time user to lightburn and using a laser. So I picked this as a project to start with. The engraving is not a vector image but just a line, the same as when I cut the parts. I’m running the laser faster with less power. I tried sending more pictures but it only let me send one. New phone so trying to get the image size reduced? Processing: 16593666153841678997929242722381.jpg…
I have the speed set to 300 in/min Max power % 12 and the Min power % 11. The min power seems to be about as low that it can to make it fire.
a line is a vector. You’ll pick up the terminology as you go. If the layer is set to ‘line’ the, the laser doesn’t know if it’s cutting or engraving.
Might have to move quicker.
In essence, you are driving a tack with a pile driver…
I think you misunderstand me. You need to run high enough power to do the job, but be able to reduce it sufficiently for a change direction. A 1% change will gain you nothing.
I will run 100mm/s 32% max and 10% min. That’s a wider range that will allow the controller some hope that it can fulfill.
Most of the time with co2 we run mm/s, but it really doesn’t matter.
Might have to bump the speed and come up with some kind of max power. It’s obvious minimum will have to be 12%. Find out how much power/speed makes for a good line, I’d guess somewhere around 30% max power is all you’ll be able to do, but I don’t know…
Keep in mind that when your machine lases it lases at 150 watts.
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