Apart from the extra wiring, the mixed use of analog and digital controls doesn't do much for repeatability. In general we don't encourage/recommend use of the POT once you have the Mini Gerbil in place. The power settings on K40's are an interesting area as they come back to what the user is actually trying to achieve. Quote from dancolwp1974 on February 15, 2020, 2:39 pm I want to get this all figured out before I try to upgrade my other K40 in the classroom. I really appreciate any insights with this. It is really just getting it to fire and adjust power that seems to be messing me up. In both the plain GRBL driver, the GRBL STM, and GRBL -M3 versions the movement controls all work correctly and fun stuff like that. Then I saw the installation video that does not disconnect those but its a slightly different power supply. I am fairly confident that the wiring is correct because it was working a year ago but then I read that the other two wires from Pot (Grn/Blue in the pic) should be removed and I hadn't done that they are still connected to the POT only the I has been cut and hooked to the GRBL board. Here is a gallery of images associated with what I am working with including a picture of the $$ response (sorry about the picture of text but I was in a rush). The power doesn't change based on changing that setting movements (I read this is because I need to set $32=1, not $32=0) not sure how to do that yet. Which if I do I can get the laster to run and fire but even with the cut power set to 100% it only puts out 10 mA on the analog output display on the laser and it stays on during travel.
From what I can tell, I should be using the GRBL driver and not the GRBL -M3. But I cannot for the life of me get LightBurn to function properly.Ĭan someone confirm the settings I should be focusing on. I think I have the v.1 grbl board and everything seems to be working because if I reconnect the Variable Power pot, the test button will fire the laser and the power is adjustable via the POT.
So I had this all working somehow last year but had to move to a new computer and reinstall lightburn and dont have access to the old machine to see what I did. Quote from Hegemone on February 13, 2020, 10:07 am
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