I hope you can help me, I’m slowly running out of ideas.
I’ve upgraded my old 130w CO2 laser from a Puhan Ph3 controller to a new Ruida RDC6445S controller (complete set).
Laser power supply, motor drivers, etc., remained the same.
The conversion itself was not difficult.
Now, everything seems to work fine.
Home position, limits, and motor step size… all good.
But, I’m having major issues with the speed!
For example, if I set the controller to move right at 200mm/s, the distance and speed are correct.
It moves 200mm in exactly one second.
However, when I set the cutting speed to 100mm/s in LightBurn and try to cut a 100mm line, the machine suddenly takes 50 seconds for 100 mm!
No matter what values I input in the program, they are always too slow!
Even though the controller shows 100mm/s after loading the file, it doesn’t reach this speed. I have to set the values extremely high to come close to a normal value…
Thank you for your help so far!
I’ve now downloaded the file and taken a screenshot of the user interface.
However, when operating with the computer directly connected to the laser, I noticed the same issue.
Empty movements, like moving 200mm to the right at 200 mm/s, are exactly right in both distance and time.
But as soon as I create a file for the laser to cut or engrave, the speed suddenly doesn’t match anymore.
According to my calculations, I’m about 5000% too slow…
I’m at my wit’s end…
I have no idea how to correct the value by 5000%.
I don’t see anything particularly obvious. One thing I’m noticing is that your step length is dramatically smaller than mine. That would mean your stepper driver, stepper motor, and gearing must be significantly different. This alone wouldn’t cause the issue you’re seeing though since you’re reporting that burned dimensions are correct.
Try one thing please. Can you Save the RD file for the design in your screenshot and upload here? I’ll try burning it to test results.
But I’m slowly beginning to suspect that it might be a software issue with the controller itself.
This version:
RDC- V35.01.07
HMI-V10.10.01.15
This version seems relatively new to me, and I can’t find much about it on the internet.
When I try to update the controller, I always get an error that the downloaded original version from Ruida (RDC6445G-V15.01.22) doesn’t work.
Could it be a software bug?
Does anyone have a different version that I could try?
Note that this is for 6445G. You indicated earlier that you had 6445S. Also note that there appear to be two different revisions of the 6445S board. One that has firmware starting with V26 and another like yours that starts at V35.
I’ve seen a version V35.01.08 floating around. I have no idea if it will work for your controller, what’s supposedly fixed in it, and if that’s even the latest.
It could certainly be a firmware bug but I’ve never heard of one like this.
I’ll likely have a chance to test the file sometime over the weekend.
Since all the settings are almost the same and I have the problem with RD Laser Cut / Lightburn, I really believe it has to do with the software.
I have also written to the manufacturer in China and to the seller.
but unfortunately, I haven’t received a response.
I also can’t find any software on the Internet that I could try… I only find software for the 6445G and they don’t work…
Would anyone possibly have a software that I could try on my 6445S?
