So, back in 2021 I asked the question as to whether it’s possible to control the diode laser with a ruida controller.
So fast forward two jobs and one baby later and I’ve finally got round to mounting one.
The trouble is that I managed to integrate it so it’s using the pwm from the board but the power is an issue.
Its a 24v input, but if I use the 24v output on the board it’s controlled correctly but lacks power to do anything. (Measured 0.8a at the head of I was using my multimeter correctly) However if I use an external power supply it stays on constantly and isn’t switched by the pwm.
I’ve tried every combination I can think of and can’t get it to cut anything even cardboard.
I’ve been using reworks as I forgot I had light burn .
So can anyone point me in the right direction?
The laser I’m using is this one (40w input)
Supply the module with whatever power it needs. Tap it from one of the external supplies, not from one of the supplied outputs from the Ruida. It’s going to draw at least 80W, I would think, but … the link really doesn’t tell you up front what kind of power it requires or puts out. Even the 12V/5A input specification relates to only 60W…?
Mine is set to a glass dc exited tube, so set your Ruida to use an RF (no-preignition). Can’t remember if that’s the exact terminology, but I’m sure you can figure it out.
Thanks Jack, I’ll give it a go.
Quick question though, I’m not electrically minded, I usually just muddle through wiring like for like, but it only has three inputs, 24v, and and pwm, the pwm and 24v are fairly self explaitary but is the gndbthe same as negative? I thought they were different as in the UK we have three core of pos, neg AND earth/ground.
I’ve tried connecting the ground to the machines ground and it won’t fire but when I connect the ground to the negative of the power supply it fires constantly.
Sadly after playing around with it all evening I’ve not been able to get it to work. Seems like it’s on constantly when I use an external 24v power source.
Might have one last Google tonight then it’s going back if not
Thanks for your help anyway.
Might just save up for a new co2 tube
Doesn’t seem to matter if the pwm is on or not. It’s definitely the 24v version as it’s printed in the circuit board but I guess it’s possible that the circuitry is faulty.
Anywayz it’s boxed up and going back, think I’ll stick to co2 I understand how these work at least.
It’s not supposed to lase when the pwm pin is low…
Most of these use a optical isolator between the pwm and the internal control circuits… This is generally why many will allow over 5V for the pwm control.
You can always make a plug or jump it from ground to pwm to ensure it’s low, but for safety reasons it should not lase with only power applied.
I think your module is broken — sorry.
There isn’t much to these… There is power and a pwm signal… how complex is that?
All the pwm does it turn the laser on at 100% then off. How long is stays on is the percentage of the period, but either way it’s on then off…
