I bought a fancy new 100W laser off Aliexpress about a year ago to compliment my aging 60x90 100W K40 style laser (still running the old M2 board on Whisperer, another story for another day). Upon finally getting the new Ruida (6442S board) based machine fully installed in my shop back in August just in time for my usual avalanche of fall orders, I bought lightburn and had the machine running great after just a couple hours of feeling out the software. All was great until a week ago. Mid-cut, the laser stopped, HMI screen went blank, all the lights on the Ruida went dark (except for LED 14 or 15, cant remember which). Obviously that was a rather dark day since I’d grown dependent on this machine and was epically failing at integrating a VMS board into my old laser (remember I said another story for another day). After verifying that 24V was still being delivered to the Ruida board, I went on a Facebook group asking for help, got no replies, and so decided to order a new board. Board arrived on Friday, fastest shipping I could find. Installed it, and the new HMI that came with it. Fired up the machine, and NOTHING. I asked facebook again, and got a couple responses that have yet to reveal the source of the problem other than one individual mentioning receiving THREE dead Ruida boards in the past two years. Is this really the state of things?
I did do some testing with a multimeter in hopes of determining whether something else in the laser killed the board or if it just died like this after only a few months of operation (there do appear to be scorch marks in a couple of places on the old board, especially at the power transistor). Here’s what I’ve found so far:
Without the any of the wires except the 24V plugged into the board, I get 4.6V between the wires that would plug into port 1 and 2 of CN5 and 1.2V across 1 and 5 of the same block. With the wires all plugged in, I get 4.6V between 1 and 2 of CN5, 0.8V between 1 and 5 of CN5, and 4.6V across 2 of CN5 to 3 of Axis U as well as all of the wires going into Axis X and Y, and ground on CN4 (the latter not surprising).
I’m currently in correspondence with the vendor of the replacement board (Cloudray’s ebay dealer, chosen purely because they had the fastest shipping). They are proving most unhelpful, insisting I try installing a new power supply which I don’t have. Looks like I may have to file a claim on them if it turns out the board is truly dead from the factory.
Can someone shed some light on what’s going on? I cant afford for this machine to be down any longer. Should I just part it out and buy a new one? Should I dump these worthless Ruida controllers and go to a different controller? Please help!