ednisley
December 7, 2025, 2:30pm
32
Wish you’d mentioned the cable was 20 feet long.
Unfortunately, any long unpowered cable, no matter how good, will work poorly. The problem may not lie in the cable, but in the marginal performance of the USB drivers on at least the laser controller end.
That the cable works in other circumstances does not imply success in the peculiar setup required for a laser controller switching high currents in consumer-grade hardware. If it just barely works in one setup and just barely doesn’t in another, the trouble isn’t entirely in the cable.
Some previous discussions cover the problems:
I have just purchased a Gweike Cloud RF laser, using with Lightburn. The supplied USB cable works fine but it’s very short. So I bought a nice long one, 5 metres length. USB C to USB A, I use Macs. It’s a good quality cable, but I don’t seem to be able to make a connection when I plug in to the laser and to my Mac? Any suggestions/fixes most welcomed. I came across a really useful post by @BillieRuben who seems to have knowledge of these machines and setting up, any idea Billie ? tia
Hello,
I’m a nub to lasers and LightBurn but I have been a CAD operator for 40+ years so I the LightBurn program is not a foreign software to me.
I have created a LightBurn drawing that i want to use to test my new laser and figure out power and speed for my laser. When i test my drawing by starting the PREVIEW command, the preview runs perfectly. But, when i send the send the START command to the laser, the laser starts by moving to the first object (a 1/2" diameter circle) to engrave/cut (li…
WOO HOO !!! I got everything working right , FINELY !!! What was the problem?
It turns out to be the USB to Controller board cable was faulty. That was the only thing I failed to check and that was it. I have a bad habit of buying one to use and one to loose.
When I thought about the cable being bad, I got the cable out the spare controller kit and that one worked. I feel really stupid sitting here thinking how I spent 4 to 6 weeks crying and trying to fix this thing and never though…