Good lord, that first few seconds of the video made me feel like I was watching an early 2000s music video. Like Missy Elliot or something with that wide angle quick motion :D
This is a great walkthrough! Quick question, how does the PWM or pot output affect the actual beam intensity? Eg. if you were to put an oscilloscope on a laser detector, would you see the PWM signal come through in the beam or is it averaged out (likewise, if you feed it 3V or whatever would you just see a lower intensity or does the power supply do pwm on the beam to achieve that average power level? Thanks!!!
hi, I have a 80w co2 laser marking machine, it has a 220v outlet but a 110v power supply , what are the implications of using it with the wrong voltage
just a little question about the 5v operation, is it coming from the supply or do i have to connect 5 volts, my supply dosent have a firing button like yours does but im not worried abut that i just want to know how to get 5 volts, i comnected a 110v cable because my one operates on 110 not 220 ill wait for your reply.
I would use a 5 volts from your laser controller, or a computer. Not sure how you're applying the power supply and within what context (other electronics).
my one is very close to yours in layout, i think. the connection holes look pretty close. ok how about if i use a 5v power suply and connect it to the remaining holes will this work? im thinking of using one of my old mobile phone charger as it supplies 5v ill cut the end of the wire where it connects to the phone and make two wires from the charger to the co2 supply, i wonder if this will work.
the video was very helpfull. But i have one question, there is 5V input of logic side, but my TTL that gives the triger signal works on 12V so can i use 12V for HT laser triger. All the mauals says that the TL must be lower than 0.3V and TH must be hieger than 3V bun no info about how hight it can go.
I have a similar power supply on my 120w laser from Roci but mine has a red and white ht cable at the back side but can't seem to find any info on what the white one is for or where it is supposed to be connected to can anyone help me?
It's the return (ground) for the tube- you can connect it through an ammeter to indicate milliambs through the tube. 0-30mA ammeter is about $10 on Amazon.
friend. I need your help!!. I have a power supply like yours. The resistance that is directly after the voltage input has been burned. I cant read the value. Could you tell me the value of your resistance? Please!!
What if I use a Digital-to-Analog IC that convert PWM into analog voltage level? The idea to use DAC because my power supply (Reci P2) says though PWM is allowed but too high of frequency will shorten the life of the PSU. Can I use the 5V as DAC power input, and connect DAC buffered voltage output into the Input terminal of the PSU? Is the input terminal current sensing, or is it voltage sensing? When using potentiometer with the 5V, G and IN terminal, basically it's just voltage divider true? Or is the PSU sensing the current flowing out of the 5V?
After second day of use, of the laser cutter stop working. 1) Test switch does not work(does not fire) 2) The machine stop communicating with software (example: does not home when connecting with software) 3) The Amp-meter dial does not change the current 4) The Fan inside the power supply DOES NOT run 5) The water pump runs fine 6) The Fan behind the power supply unit runs fine 7) Laser tube looks fine (looked for cracks, but nothing was observed). Does this mean the power supply is not working? Please help
hi i use laser engraving machine first time and now its not powering on, is it problem with just power supply? because laser tube is not broken and there are no signs of any damage, and is its power supply is replaceable?
Good to know. The testing procedure is actually rather dangerous. You will need a special probe that allows you to measure the voltage. You can also measure the current through the high tension line, but I don't recommend it. I would just get two of each part and switch them out to determine what is bad.
now when i switch on the machine its power button red light is on and the bulb inside the machine is on too but its display screen and laser power button not working, is something is wrong with the laser power? i really have no idea kindly guide me, thanks.
Power supply for a 40w laser should be at least 75 watts preferably 96 watts. 40 watts is only 1.6 amps. That's why these type of power sullies fail regularly.
Good bit of info into the psu of a co2 laser setup. Why the bad comments when all he is doing is showing you what pin does what. If you want your K40 to be better then mod it I mean they are cheap so it’s not going to be on the same level as a 5000 dollar one is it. But you can do some good mods to improve it’s burning and moment and also controller for a cheap cost.
Do Chinese suppliers offer live technical support via phone, chat, and email? 1-Day shipping options? Easy to follow instructional videos in plain English on TH-cam? Didn't think so.
i have the blacktooth laser and while cutting last night i noticed that it cuts deeper at 10ma setting than at 16ma do you have any thoughts on why that would be happening?
The only thing that comes to mind is that the voltage increases as the current decreases as per the ohms law formula. I will need to do some research on the physics and why the laser is more effective in that state.
This sounds like you're claiming, that this would be a product of your company. "Your" 40 Watt LAser Power Supply is a standard cheapskate chinese K40 laser power supply. Even with the false "TEXT" instead of "TEST" written on the PCB. These are around a 100 bucks on Aliexpress and way cheaper than a "real" Laser-PSU. For comparsion: A power supply from a epilog laser is about 800€.
they charge the extra 100 bucks for the TEST label they stick over the chinese typo :) I wouldn't resell a device that expects a high signal for safety anyway... if your cable comes loose you're screwed. don't charge extra money for crap just because you sell to clueless diy guys.
Whether it is a k40 or other power supply, the connection are the same. Folks that are unfamiliar with the connections and how they work will hopefully benefit.
Hi Marcus, We just sell the product. I just say the word "our" just to denote that we hold and sell them. Sorry for the confusion and I will try to watch those semantics in future videos.
Good lord, that first few seconds of the video made me feel like I was watching an early 2000s music video. Like Missy Elliot or something with that wide angle quick motion :D
pls, can make video how to connect it to RNR motion card
hi, i have a issue in my co2 power supply, when i power on laser, trip swicth is power off. why is that?
When i added a 50L air assist to my k40 laser i switch on ,it turns on and off quickly by itself, she is no longer working, SOLUTION PLEASE 🥺
Sounds like you maya have a faulty air pump.
@@PatrickHoodDaniel air pump work good seperatly ,but when i add it to my k40 ,the k40 works for seconds then it doesn't work at all
This is a great walkthrough! Quick question, how does the PWM or pot output affect the actual beam intensity? Eg. if you were to put an oscilloscope on a laser detector, would you see the PWM signal come through in the beam or is it averaged out (likewise, if you feed it 3V or whatever would you just see a lower intensity or does the power supply do pwm on the beam to achieve that average power level?
Thanks!!!
Hello
Do you know how or whether I can control this with an Arduino using grbl?
Thanks for any help.
can i use 80w power source to 100w laser tube? if any problem this method .??
There is no problem except the laser tube will only output around 80 watts of energy, not the full power that the 100 watt laser tube can handle.
hi,
I have a 80w co2 laser marking machine, it has a 220v outlet but a 110v power supply , what are the implications of using it with the wrong voltage
just a little question about the 5v operation, is it coming from the supply or do i have to connect 5 volts, my supply dosent have a firing button like yours does but im not worried abut that i just want to know how to get 5 volts, i comnected a 110v cable because my one operates on 110 not 220 ill wait for your reply.
I would use a 5 volts from your laser controller, or a computer. Not sure how you're applying the power supply and within what context (other electronics).
my one is very close to yours in layout, i think. the connection holes look pretty close. ok how about if i use a 5v power suply and connect it to the remaining holes will this work? im thinking of using one of my old mobile phone charger as it supplies 5v ill cut the end of the wire where it connects to the phone and make two wires from the charger to the co2 supply, i wonder if this will work.
the video was very helpfull.
But i have one question, there is 5V input of logic side, but my TTL that gives the triger signal works on 12V so can i use 12V for HT laser triger. All the mauals says that the TL must be lower than 0.3V and TH must be hieger than 3V bun no info about how hight it can go.
I been trying to figure this out for awhile. Did you ever figure it out my laser power supply has ttl and my board has a 12v pwm
Excellent Coverage of the CO2 Laser Power Supply. Thank you
What is the Voltage of the "High Tension" Line ? the 25 kV ?
What is the red/black DPST-looking slide switch on the side where the power supply has a small cutout to access this red slide switch. Thank you
I would love to know this too
That is to switch between 110V and 220V input.
I have a similar power supply on my 120w laser from Roci but mine has a red and white ht cable at the back side but can't seem to find any info on what the white one is for or where it is supposed to be connected to can anyone help me?
It's the return (ground) for the tube- you can connect it through an ammeter to indicate milliambs through the tube. 0-30mA ammeter is about $10 on Amazon.
friend. I need your help!!. I have a power supply like yours. The resistance that is directly after the voltage input has been burned. I cant read the value. Could you tell me the value of your resistance? Please!!
можно по подробнее о подключении без контроллера, с потенциометром ?
What if I use a Digital-to-Analog IC that convert PWM into analog voltage level?
The idea to use DAC because my power supply (Reci P2) says though PWM is allowed but too high of frequency will shorten the life of the PSU.
Can I use the 5V as DAC power input, and connect DAC buffered voltage output into the Input terminal of the PSU?
Is the input terminal current sensing, or is it voltage sensing?
When using potentiometer with the 5V, G and IN terminal, basically it's just voltage divider true?
Or is the PSU sensing the current flowing out of the 5V?
You can use a PWM at the IN terminal to change intensity.
Patrick Hood-Daniel thanks a lot
After second day of use, of the laser cutter stop working.
1) Test switch does not work(does not fire)
2) The machine stop communicating with software (example: does not home when connecting with software)
3) The Amp-meter dial does not change the current
4) The Fan inside the power supply DOES NOT run
5) The water pump runs fine
6) The Fan behind the power supply unit runs fine
7) Laser tube looks fine (looked for cracks, but nothing was observed).
Does this mean the power supply is not working?
Please help
i think mine have the same problem with you... and i found out that a few component on my mainboard have burned.. How do you solve this problem?
hi i use laser engraving machine first time and now its not powering on, is it problem with just power supply? because laser tube is not broken and there are no signs of any damage, and is its power supply is replaceable?
Please call us so we can look up your order and troubleshoot.
no we didn't get it from you guys, we bought it from china, I'm just asking if you can tell us what is the problem with it? and how can we fix it?
Good to know. The testing procedure is actually rather dangerous. You will need a special probe that allows you to measure the voltage. You can also measure the current through the high tension line, but I don't recommend it. I would just get two of each part and switch them out to determine what is bad.
now when i switch on the machine its power button red light is on and the bulb inside the machine is on too but its display screen and laser power button not working, is something is wrong with the laser power? i really have no idea kindly guide me, thanks.
Power supply for a 40w laser should be at least 75 watts preferably 96 watts. 40 watts is only 1.6 amps. That's why these type of power sullies fail regularly.
Good bit of info into the psu of a co2 laser setup. Why the bad comments when all he is doing is showing you what pin does what. If you want your K40 to be better then mod it I mean they are cheap so it’s not going to be on the same level as a 5000 dollar one is it. But you can do some good mods to improve it’s burning and moment and also controller for a cheap cost.
Do Chinese suppliers offer live technical support via phone, chat, and email? 1-Day shipping options? Easy to follow instructional videos in plain English on TH-cam? Didn't think so.
i have the blacktooth laser and while cutting last night i noticed that it cuts deeper at 10ma setting than at 16ma do you have any thoughts on why that would be happening?
The only thing that comes to mind is that the voltage increases as the current decreases as per the ohms law formula. I will need to do some research on the physics and why the laser is more effective in that state.
can i use 150w laser power supply tp 40w laser tube? what's add part to do that and how to wiring?
De mystifying the k40 operation laser side...... nice.
thought exactly the same :)
This sounds like you're claiming, that this would be a product of your company. "Your" 40 Watt LAser Power Supply is a standard cheapskate chinese K40 laser power supply. Even with the false "TEXT" instead of "TEST" written on the PCB. These are around a 100 bucks on Aliexpress and way cheaper than a "real" Laser-PSU.
For comparsion: A power supply from a epilog laser is about 800€.
they charge the extra 100 bucks for the TEST label they stick over the chinese typo :) I wouldn't resell a device that expects a high signal for safety anyway... if your cable comes loose you're screwed. don't charge extra money for crap just because you sell to clueless diy guys.
Whether it is a k40 or other power supply, the connection are the same. Folks that are unfamiliar with the connections and how they work will hopefully benefit.
Hi Marcus, We just sell the product. I just say the word "our" just to denote that we hold and sell them. Sorry for the confusion and I will try to watch those semantics in future videos.
Terrible video, unrelated to the title, I can look at the manual and see what each of the terminals are for......
Hi James, Can you tell me what information you were expecting to see? I can make another video with that information. Thanks.
A test test button to test. Slow down poindexter, you lost me.
I should have done a better job editing or speaking. Sorry about that.
Brutal