I can't tell you how much this video helped me. I am in very stressful part of my life at the moment and every new bump on the road feels like too much to handle. You had me back up and running in no time with this and and my stres for the day is gone. Thank you.
Matt- your videos are SUPER informative (sad Ruida and Cloudray don't have this content), but suggestion: use a lapel mic, rather than the built in camera mic. 90w DIY 6090 build here under construction in Montana, USA; thank you VERY much for your content.
What about the readout on Cloudray MYJG-100 power supply? Can one press the TEST button and make adjustments using the little potentiometer on the side? If so, what number would be ideal to have in the LED display? 24 -- as is shown in Cloudray's product information pictures?
Awesome Video! The company i work for bought a used 150w 5' x 10' laser that wouldn't fire. after watching your video I traced the issue to the machine not having a water sensor. The wire for it was just coiled up under the machine.
I unplugged the block and the PS tested good. Jumping P&G didn't get a beam, but neither did L&G. If my PS tested good without the block, why are you saying I need to replace it if L&G doesn't work? Seems like I just need to replace a component inside the PS. All I know is something is clicking in there.
Hiya, Did you solve this problem? I'm a Newby and I don't know what it means to short circuit. Not getting much info that's helpful online. I am at the stage of checking to see if its the water sensor supply for my non firing laser issue. 😔
I purchased a Red and Black 80w. According to info on the machine it is practically brand new. Apparently the previous owner attempted to manipulate factory settings. Being new to it all, I don’t know how to return it to factory settings. Is there anyone that will video chat to troubleshoot or is it best to just purchase a new computer board? Thank you.
Essentially watching every one of your videos. I have been trouble shooting my Dowin 1300*900 for months. Diagnosed a bad power supply, replaced it then my controller goes black. Replaced both controller and motherboard, it works for 10 minutes then blacks out. Turn it off then on and the screen comes back on, but as soon as I push a directional button on the controller it blacks out. Any Idea what this could be?
Thanks for the great Video, thumbs up. my laser is cutting but not engraving. I have a 644xs and use lightburn. The ruida controller pad only shows the vector cuts not the engraving. Can you please help me, much appreciated
I hope you have a little wisdom for me. I have an 80w laser, when it starts I get a good beam and 14amps on the amp meter. After a couple min it drops to 1 to 2 amps. I thought overheating but fans on supplies seem to be good. Any help would be appriciated
Hi, can you tell me what you mean by short circuit? Do I remove the wire from that port? My laser is not cutting and the test button was not working until I unplugged the 6 way terminal. Then the laser fired. I need to plug it back in to see if the water monitor is working as per your steps but I'm stuck. Please help! Thanks Natasha
I have a 150w laser tube and the 150w cloudray laser power supply with the screen on top you showed in the video, up to around 50% command power the laser cuts just fine but anything over that and it doesn't cut atall. I noticed some arcing internally to the annode? Ring on the output side, the arc just sort of dances around the ring I've heard conflicting information that this is normal but I have no idea. The tube has only done about 10-20 hours in the lifetime of the machine (probably 5 years old barely used) I've swapped the power supply and flushed out the water with fresh distilled and it hasn't really helped. Any ideas?
I bought new laser tube, it's firing nicely but will not cut or engrave. I did a line test, at 85% power, the mA does not even go up past 7. What could be wrong?
Hi, my laser is firing a lot whilst cutting and not cutting completely through the acrylic and other stuff that I’m cutting, what could be the problem?
I'm having trouble with low power. It takes me several passes to get through 1/8" acrylic. Mirrors appear to be aligned. Lens was just replaced but didn't fix the issue. Tried 80% power/ speed 10
Wondering if you would have any knowledge of the red/black laser??? Min start up fine, runs for 20 seconds then loses all power except for lights and a fan on the door of the components. When I shut it off and let it sit for awhile it will start back up and same thing
Sounds like a DC power supply issue. IF the door fan and lights remain on these usually are powered by mains. so, with machine coming on and then controller turning off would indicate that if you change out the DC power supply the issue should be resolved.
I just bought K80 aka red Chinese laser. I am trying to test fire (pulse), but nothing happens. Water cooler is turn on and running (if its not, and I try press pulse it gives error about water flow). Lid is closed When I click TEST on the power supply it fires. Where else can be the problem?
Dear Mr. Matthew thanks for this really educative video. I have a strange issue that, after replacement of Laser Tube 40W and Power supply 50W with compatible new ones both from VEVOR (this is a 50W Chinese one), Laser does not stop firing also during travel. I mean as soon as I power my machine, it goes to zero point to engage limit switches, and turns back to preset axis by leaving a really unexpected line over the workpiece. Something (what i dont know) keeps the laser on, even with a weak light. I am helpless from reseller, any suggestion will be really important. I have videos, parameters, wiring etc. if may support my question and if you want to see. Please help me, I am ready to cover any costs occured. Thank you Regards
voyager3355, I am having the same issue recently. Swapped the power supply wired exactly the same as the original and now it fires all the time or while traveling. Did you ever find a resolution and what was it? Thanks in advance.
@baddogACE Hello. I have changed both laser tube and power supply with non luck, and I used to purchase a brand new unit. Since I need the machine. I think to solve the issue, you need to replace the PLC main board. Because my problem originated from a blown co2 tube due to lack of cooling. that probably caused a short circuit at unit and all these things happened. I am sorry for you. Thanks. Regards.
Matt I am running into an issue on my 300watt machine where it cuts fine but after it has been running for 30 minutes there is something dropping the power because it stops cutting fully through the material any ideas?
I have had two solutions in the past for this. Once the co2 has in the tube was depleting so it was losing power on the far side. The other solution I have had is the power supply. The fly back relays were bad and also breaks in the high voltage wire causing voltage leak
First thing I would try is turn all the lights around the machine and pulse it if you see any sparks or little electrical discharge and listen close for any crackling noise if you see or hear any of those, if you are knowledgeable I would change the red high voltage wires. Make sure to seal the connections with hot glue or liquid electrical tape. If you aren’t sure how to do that then just change the power supply. Do you know how to and have the parts to do a resistor test ?
@@babyayalew8059 thanks! I did all. And i am convincere this evening that I have blown out my PLC. Unfortunately. But like this. 1. Water flow sensor is broken. 2. Even water flow sensor short circuited laser travels with light. 3. Each port makes the same even laser tube 1 or 2. I am convinced to purchase new one.... Unfortunately. Regards.
I have a problem with my 100W Co2 laser. If my laser power is set above 50% (up to 99.9 %), the ignition of the laser tube is normal, the laser current indicator shows the number 15mA to 30mA. I can use a laser for the acrylic cutting process. But if my laser power is set below 50%, the laser tube ignition still has ignition. It's just not continuous (intermittent) and the current indicator shows a number below 1mA. So that I can not do the engraving process. Maybe someone can help provide a solution to my problem?
My problem is when I turn on the machine, it powers up but the ruida monitor does not, hence my laser does not operate. The machine fan and light inside powers up, but not the laser. does that mean I need a new ruida system?
IF you know what you are doing, check the 24vdc power supply to make sure it is putting out; normally there is a green LED to indicate power, but use a multimeter to check for 24 vdc out. Make sure the connector from the 'motherboard' module to the display module is plugged in at both ends. For starters.
@@BrilliantDesignOnline the machine has green lights on everything. Pretty sure also from the power box, as I said the fan was running. Does that not mean anything? Will the ruida panel have lights on when functioning properly?
@@cd3845 I don't know your specific machine. You cannot be 'pretty sure'; you need to know the systems, so I would recommend having someone local look at it. Also, you should share the manufacturer and specs to give us a better idea at what we are dealing with. Perhaps Matt has an idea, but the best bet is probably not on YT, at least for diagnoses.
I hv experience like this.. im using top wisdom.. the board was faulty.. swap with other mchine panel board.. then its working fine... need to replace the ckntrol panel board..
Hii! My husband and I have a co2 laser machine and a while back it stopped functioning properly and now it doesn’t stop lasering between paths. How can we fix this ? It’s a Katian USA
If you have a Ruida or other DSP controller and are seeing this happen, it is most likely a dying high-voltage power supply unit (PSU). The drive circuit that turns the laser power off and on tends to go first, before the part that controls the overall power level.
I have a problem that my laser tube is automatically firing the laser during moving the laser head from one place to another place kindly give a solution
Hi friend, well my problem is that miliamper (mA) decrease little by little while the CNC is working, the power supply is new, (I bought another one thinking the power supply has broken, but not), in one hour of working the milliamperes drecress from 21mA to 15mA. the AC supplier has 210v contact, (is low but, I always work with this voltage without problem) the Laser Tube is not new but not old, mmm apron I changed this apron. 1 year whit very low use. In advance, thanks a lot.
I can't tell you how much this video helped me. I am in very stressful part of my life at the moment and every new bump on the road feels like too much to handle. You had me back up and running in no time with this and and my stres for the day is gone. Thank you.
Matt- your videos are SUPER informative (sad Ruida and Cloudray don't have this content), but suggestion: use a lapel mic, rather than the built in camera mic. 90w DIY 6090 build here under construction in Montana, USA; thank you VERY much for your content.
Thanks
What about the readout on Cloudray MYJG-100 power supply? Can one press the TEST button and make adjustments using the little potentiometer on the side? If so, what number would be ideal to have in the LED display? 24 -- as is shown in Cloudray's product information pictures?
Hi Matthew,
Thanks for this CO2 troubleshooting video.
It is really informative.
Awesome Video! The company i work for bought a used 150w 5' x 10' laser that wouldn't fire. after watching your video I traced the issue to the machine not having a water sensor. The wire for it was just coiled up under the machine.
I unplugged the block and the PS tested good. Jumping P&G didn't get a beam, but neither did L&G. If my PS tested good without the block, why are you saying I need to replace it if L&G doesn't work? Seems like I just need to replace a component inside the PS. All I know is something is clicking in there.
If you are in Australia do I need to do this upside down????
Thank you so so much for this!!!!! It helped me a lot with my laser.
AFTER SEE YOUR VIDEO IAM EXPERT IN LASER NICE WORK KEEP IT UP DEAR🥰👌🤝
Thanks, I appreciate the feedback
So am I correct in understanding if TEST button fires laser while P and G are shorted out the issue is the flow switch?
Hiya, Did you solve this problem? I'm a Newby and I don't know what it means to short circuit. Not getting much info that's helpful online. I am at the stage of checking to see if its the water sensor supply for my non firing laser issue. 😔
What dose it mean if when u short circuit p and g it does nothing but when u short circuit l and g you get the laser
Short circuit on P & G if for water protection. G & I will be laser On constant - not good
So, if when shorted L and G the laser fires, what's the problem? Psu?
Did you figure out the problem ? My laser is doing the same
I purchased a Red and Black 80w. According to info on the machine it is practically brand new. Apparently the previous owner attempted to manipulate factory settings. Being new to it all, I don’t know how to return it to factory settings. Is there anyone that will video chat to troubleshoot or is it best to just purchase a new computer board? Thank you.
Essentially watching every one of your videos. I have been trouble shooting my Dowin 1300*900 for months. Diagnosed a bad power supply, replaced it then my controller goes black. Replaced both controller and motherboard, it works for 10 minutes then blacks out. Turn it off then on and the screen comes back on, but as soon as I push a directional button on the controller it blacks out. Any Idea what this could be?
Thanks for the great Video, thumbs up. my laser is cutting but not engraving. I have a 644xs and use lightburn. The ruida controller pad only shows the vector cuts not the engraving. Can you please help me, much appreciated
you may consider a support call, email askmatt@mwlaser.com.au to arrange this
how do you do a test with out a test button? is there a way to do a jump wire to test burn?How can I talk to you?
Thanks the short circuit helped out alot
what did he mean exactly by "short circuit"?
I hope you have a little wisdom for me. I have an 80w laser, when it starts I get a good beam and 14amps on the amp meter. After a couple min it drops to 1 to 2 amps. I thought overheating but fans on supplies seem to be good. Any help would be appriciated
How did you solve that problem?
I haven't I assume its the power supply, still not sure though.
@@jeffcrawford3458 Haven't you changed anything?
change power supply?
Not yet been super busy. I also have a CNC and a graphic unit
Hi, can you tell me what you mean by short circuit? Do I remove the wire from that port?
My laser is not cutting and the test button was not working until I unplugged the 6 way terminal. Then the laser fired. I need to plug it back in to see if the water monitor is working as per your steps but I'm stuck. Please help! Thanks Natasha
"short circuit" means to run a wire between the terminals so that electricity can flow between them. In his illustration, the yellow line is a wire.
@@JohnKelso Thank you :) I figured it out in the end.
I have a 150w laser tube and the 150w cloudray laser power supply with the screen on top you showed in the video, up to around 50% command power the laser cuts just fine but anything over that and it doesn't cut atall.
I noticed some arcing internally to the annode? Ring on the output side, the arc just sort of dances around the ring I've heard conflicting information that this is normal but I have no idea.
The tube has only done about 10-20 hours in the lifetime of the machine (probably 5 years old barely used)
I've swapped the power supply and flushed out the water with fresh distilled and it hasn't really helped.
Any ideas?
Great tips Matt 😄
Thanks! 😀
I bought new laser tube, it's firing nicely but will not cut or engrave. I did a line test, at 85% power, the mA does not even go up past 7. What could be wrong?
Hi, my laser is firing a lot whilst cutting and not cutting completely through the acrylic and other stuff that I’m cutting, what could be the problem?
I'm using 130 EFR f6 laser tube I just changed reci T6 but it's not working perfectly do you have idea it's power supply different or other settings?
I'm having trouble with low power. It takes me several passes to get through 1/8" acrylic.
Mirrors appear to be aligned.
Lens was just replaced but didn't fix the issue.
Tried 80% power/ speed 10
Wondering if you would have any knowledge of the red/black laser??? Min start up fine, runs for 20 seconds then loses all power except for lights and a fan on the door of the components. When I shut it off and let it sit for awhile it will start back up and same thing
Sounds like a DC power supply issue. IF the door fan and lights remain on these usually are powered by mains. so, with machine coming on and then controller turning off would indicate that if you change out the DC power supply the issue should be resolved.
I just bought K80 aka red Chinese laser. I am trying to test fire (pulse), but nothing happens.
Water cooler is turn on and running (if its not, and I try press pulse it gives error about water flow).
Lid is closed
When I click TEST on the power supply it fires.
Where else can be the problem?
Dear Mr. Matthew
thanks for this really educative video.
I have a strange issue that, after replacement of Laser Tube 40W and Power supply 50W with compatible new ones both from VEVOR
(this is a 50W Chinese one),
Laser does not stop firing also during travel.
I mean as soon as I power my machine, it goes to zero point to engage limit switches, and turns back to preset axis by leaving a really unexpected line over the workpiece.
Something (what i dont know) keeps the laser on, even with a weak light.
I am helpless from reseller, any suggestion will be really important. I have videos, parameters, wiring etc. if may support my question and if you want to see.
Please help me, I am ready to cover any costs occured.
Thank you
Regards
voyager3355, I am having the same issue recently. Swapped the power supply wired exactly the same as the original and now it fires all the time or while traveling. Did you ever find a resolution and what was it? Thanks in advance.
@baddogACE Hello. I have changed both laser tube and power supply with non luck, and I used to purchase a brand new unit. Since I need the machine.
I think to solve the issue, you need to replace the PLC main board.
Because my problem originated from a blown co2 tube due to lack of cooling. that probably caused a short circuit at unit and all these things happened.
I am sorry for you.
Thanks.
Regards.
Great video!
Thanks!
Matt I am running into an issue on my 300watt machine where it cuts fine but after it has been running for 30 minutes there is something dropping the power because it stops cutting fully through the material any ideas?
How did you solve that problem?
I have had two solutions in the past for this. Once the co2 has in the tube was depleting so it was losing power on the far side. The other solution I have had is the power supply. The fly back relays were bad and also breaks in the high voltage wire causing voltage leak
@@shawnlandry1636 change power supply?
First thing I would try is turn all the lights around the machine and pulse it if you see any sparks or little electrical discharge and listen close for any crackling noise if you see or hear any of those, if you are knowledgeable I would change the red high voltage wires. Make sure to seal the connections with hot glue or liquid electrical tape. If you aren’t sure how to do that then just change the power supply. Do you know how to and have the parts to do a resistor test ?
@@shawnlandry1636 How do I take the test? 2-3 mA drop has, loses
If the problem is on the control line what could be the cause ?
Hey sir can you tell me why laser not stop emitting when it travel?
I’m having the same issue. Let me know if you have figured it out
@@brianbean19 when I trase the bord I found some short elements now I am going to change the bord.
Hello! i have the same issue! laser does not stop during travel! and ruins my workpiece.
May it be the Controller defective?
@@voyager3355 it is tube power supply problem.
If you can try by changing another power supply
@@babyayalew8059 thanks! I did all. And i am convincere this evening that I have blown out my PLC. Unfortunately. But like this.
1. Water flow sensor is broken.
2. Even water flow sensor short circuited laser travels with light.
3. Each port makes the same even laser tube 1 or 2.
I am convinced to purchase new one....
Unfortunately.
Regards.
my machin ( laser co2 work space 120 * 160 cm )makes self restart ......do you have please any solution
I have a problem with my 100W Co2 laser.
If my laser power is set above 50% (up to 99.9 %), the ignition of the laser tube is normal, the laser current indicator shows the number 15mA to 30mA. I can use a laser for the acrylic cutting process.
But if my laser power is set below 50%, the laser tube ignition still has ignition. It's just not continuous (intermittent) and the current indicator shows a number below 1mA. So that I can not do the engraving process.
Maybe someone can help provide a solution to my problem?
my laser seems to start and then fade out over a 400mm length. what would cause this
The laser beam loses power and stops cutting after 20 minutes, what could be the problem?
My problem is when I turn on the machine, it powers up but the ruida monitor does not, hence my laser does not operate. The machine fan and light inside powers up, but not the laser. does that mean I need a new ruida system?
IF you know what you are doing, check the 24vdc power supply to make sure it is putting out; normally there is a green LED to indicate power, but use a multimeter to check for 24 vdc out. Make sure the connector from the 'motherboard' module to the display module is plugged in at both ends. For starters.
@@BrilliantDesignOnline the machine has green lights on everything. Pretty sure also from the power box, as I said the fan was running. Does that not mean anything? Will the ruida panel have lights on when functioning properly?
@@cd3845 I don't know your specific machine. You cannot be 'pretty sure'; you need to know the systems, so I would recommend having someone local look at it. Also, you should share the manufacturer and specs to give us a better idea at what we are dealing with. Perhaps Matt has an idea, but the best bet is probably not on YT, at least for diagnoses.
email more info to askmatt@mwlaser.com.au
I hv experience like this.. im using top wisdom.. the board was faulty.. swap with other mchine panel board.. then its working fine... need to replace the ckntrol panel board..
What happens when the laser is working in full power even when the power in settings is low or even zero?
Hii! My husband and I have a co2 laser machine and a while back it stopped functioning properly and now it doesn’t stop lasering between paths. How can we fix this ? It’s a Katian USA
If you have a Ruida or other DSP controller and are seeing this happen, it is most likely a dying high-voltage power supply unit (PSU). The drive circuit that turns the laser power off and on tends to go first, before the part that controls the overall power level.
I have a problem that my laser tube is automatically firing the laser during moving the laser head from one place to another place kindly give a solution
Hi friend, well my problem is that miliamper (mA) decrease little by little while the CNC is working, the power supply is new, (I bought another one thinking the power supply has broken, but not), in one hour of working the milliamperes drecress from 21mA to 15mA. the AC supplier has 210v contact, (is low but, I always work with this voltage without problem) the Laser Tube is not new but not old, mmm apron I changed this apron. 1 year whit very low use. In advance, thanks a lot.
How did you solve that problem?
or its the 24v supply, if you are having issues like power on controller cutting out
Can we use 100w power supply for 60w tube?
what did you come up with using a 100w power supply
I guess this channel is off the air.
Not yet. Just been busy with laser service work. Hopefully back sometime this year.
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