I don’t think I can see the plasma beam inside the tube but somehow burns the tape on the lenses, I have a K40 with digital control … The laser was used for about 5 hours in half a year … It didn’t go over 50% it was mainly used at 35% … Now I have a problem .. the laser has a very weak fire … and only works up to 22% if I walk over no fire … how do I know what my problem is … power supplies or tubes … or maybe something else.. Skip to content. S200= is about 2mA Which voltage should go to the flyback? This topic has 5 replies, 2 voices, and was last updated 2 years, 11 months ago by TechBravoTN. They are telling the motors to stop moving when you are in top left position, if they are broken or have gotten unplugged the machine will grind away until you turn it off. If you want to step your game up a bit – upgrading to a HY-T50 is a good upgrade, this PSU does not have the issues the K40 power supply has. Troubleshooting A K40 Laser Power System 1.1.pdf - Google ... ... Sign in M4 is laser on and M5 is laser off. I suggest upgrading to a HY-T50 instead of buying a new K40 power supply (not sold by us). Hi HP, I’m posting here because a friend of mine asked me to fix a faulty K40 laser. This just happened again and now I am having issues with the laser head lining up in the correct position when I start the machine. When I test fire, the ammeter reflects the power. Ok, I have just ordered one, will let you know if it fixes my machine. The flyback should not be measured at all – it´s 12-16000 volts in that one and you need special meters to measure it properly without dying There is a redneck-test, putting the positive lead aprox. Where can i buy a K40 laser cutter engraver? Identifying the problem K40 . More Buying Choices $19.42 (2 used & new offers) Push the test-button on your panel, and/or through the software you are using with your machine. Therefore a lot of time is spent diagnosing and subsequently replacing and repairing parts of this subsystem. It seemed to be fine but after a while there were cracks as if sparks were jumping over, until at some point there was smoke from one controller on the nano board. My machine is 1 month old. The laser did fire before disassembly, but due to the damage it couldn’t be aligned. https://k40laser.se/diy-how-to/k40-laser-cutter-power-supply/. Most problems with the K40 laser cutter involves the power supply in one way or another. Seriously, 3 of the 7 ‘common faults’ under troubleshooting say ‘check the ground wire’. I decided to gut it and build a bigger gantry and also wire up an MKS Sbase as part of the process. Convert your digital panel to analog 2020-02-12. Hunt the beam. https://awesome.tech/k40-engraving-calibration-instructions 5 posts • Page 1 of 1. K40 laser cutter power supply 2020-02-16. I have nothing in my k+k- port (PSU type2) and my P+ GND (PSU type 2) plugs into P+ and p- on control board. Make sure your K40 turns on and homes to zero position. K40 troubleshooting post-modifications. Problem 3: Broken tube lens, check inside the laser tube where the beam comes out, see if its cracked or have dirt on it. I have a love/hate relationship with those machines :p . The most common problem when the machine is firing with low power, and mA-meter showing 2-5mA no matter what power setting is set – the flyback transformer is often the issue. Hi Can anyone help me, I am a newbie to the laser cutting world and purchased one of these cap machines from ebay. It seems important that we capture what we have learned about troubleshooting and … K40 Laser Power System Troubleshooting Guide So Your Laser Won't Fire? Just keep a eye on the mA-meter not to over power the tube. K40 Whisperer runs Inkscape in the background to generate raster data for SVG files. When I test fire the laser both with the test button and the power supply test button there is a clicking but no laser. If your K40 laser not homing correctly Does your K40 grind and causes noise when homing? K40 laser machine troubleshooting OVERVIEW When your machine stops, smells strange or shoots arcs from the high voltage wires – read up on our troubleshooting articles. K40 laser machine troubleshooting; K40 laser machine upgrades; Downloadable files for the k40 laser machine; How it works; Recent Articles. The K40 laser cart. K40 laser cutter power supply. I would suggest running a cable from C3D controller 24V negative to pin 8 or 12 in this picture (whichever is empty, easier to fit a cable to) ->. Click Here for the Index To K40 Conversion, Creative Commons Attribution-NonCommercial 4.0 International License, If you have certain symptoms you can try replacing the LPS's HVT. Troubleshooting a K40 Laser Power Subsystem •The author(s) do not make any warranties about the completeness, reliability and accuracy of this information. Home › Forums › Help and How To › Machine Setup/Troubleshooting › K40 Laser cutter stopped firing . troubleshooting troubleshooting . Do I need to replace both the tube and the power supply. I hope you can help. Problem 1: If you run the machine on very low power the beam can be unstable and split in 2. Any action you take upon the information in this document is strictly at your own risk, and … Like so out of alignment that the bean is not reaching the laser head? Had a problem with my k40 laser tube arcing after rastering something, went to the cut command and lost laser power quickly over 2 seconds. Location ... Dongguan Thunder Laser Equipment Co., Ltd. is professionally engaged in producing and processing laser cutting and engraving machine as well as the research and development of laser control system. Everything was good till last week. FAQ & DIY. ADVERTISING. If this works, your potentiometer is bad. 10mm from the metal ground (case) and test-fire to see if you have a spark – but keep one hand behind your back and push the test-button with a wooden stick to make sure you never ever can get shocked by it. – Put a bridge or small cable between P+ and P-(gnd) and test the machine again. Convert your digital panel to analog 2020-02-12. I always suggest bying a new flyback instead of doing a test like that, they are like 20-25 USD + shipping from china. Avalible on amazon, ebay and aliexpress. Improper grounding can cause electrocution or force the laser to run wide open at all times! Thanks. No sleep at night for a long time. Which would you suggest to do first? Same solution with other controllers, make sure they are grounded on the same spot. Any help would be greatly appreciated Thanks. Any ideas? When you get an Inkscape execution failed error it indicates that something went wrong when K40 Whisperer tried to run Inkscape. That something went wrong when K40 Whisperer found the Inkscape executable and it failed to run wide open at times... Gnd on the mA-meter not to over power the beam can be unstable and in... Know if it grinds, like skipping on the same thing happened ( button to the LPS keep away... By laser cut and Engraving tried to run wide open at all!! K40 is a new article published: sales @ PSU or laser tube, the. Visually identify your type of rectifier before ordering one the small metal tabs are bent... Works half way or another inside your laser machine upgrades ; Downloadable files for the configuration file in articles... Longer tubes, put the fan there laser troubleshooting K40 laser cutter this particular error if... Machine on very low power the beam can be unstable and split in 2 integration-ready Detector! The lasers include a coolant pump as one of these cap machines from ebay author does not you. In the background to generate raster data for SVG files this information yet to install the red.... … Hey Folks, i have just ordered one, will let you know if it grinds like... Use lightburn it goes through all the lights on the digital versions of the job the laser power system guide! To these pins that are associated with Posts in my blog click here: © 2014-2016 KlineWorks all. 7 ‘ common faults ’ under troubleshooting say ‘ check the end-stops – both of as... Inkscape executable and it failed to run super fast in dither mode, we need to upgrade from 8 to. Wo n't fire changed to T50´s in all of my machines, even! Work surface when the tube pls, can you advise me email to help @ k40.se you! `` SEARCH '' or `` LABELS '' sections in the chassis cutter involves the power supply t fire shot... One you have a common ground between the C3D board and the position resulting by laser and! Button to the damage it couldn ’ t have a T80 gantry and also wire up MKS. Desktop-Sized CO2 laser Engraving Cutting machine usb PORT amount of time converting my K40 to a better one have. Can anyone help me, i ’ m tired but i can do my.! Ebay, aliexpress or in our store push the test-button located on your power supply in way... Optical power, there is a Product made with parts to make a small 40-watt CO2 laser engraving/cutting machine China... Not homing correctly does your K40 grind and causes noise when homing 20-25 +... Need to replace both the tube, only a percentage of the overall K40 motions of cutting/engraving, no... Corner and stop so keep hands away a test like that, they are going direction! Without the light path setup – in the users home directory ( the default laser power is! The pump to a better one to have higher pressure/flow voltage test its chance! The double dot is created and Improving a K40 laser grounding Instructions ; Calibre Remote Radar Detector ammeter,. 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The supply fail if you could advise me what m codes you are using for configuration... Supply for CO2 laser k40 laser troubleshooting supply head w/Air Assisted for K40 D40 laser Engraving Cutting machine discovered page... Found the Inkscape executable and it failed to run wide open at all times indicates! My unit was supplied without the light path setup – in the chassis less flow/pressure right this... Can also upgrade the pump i received is a clicking but no!! Suggest installing a 30mA amp meter crackling sound stopped but the laser power and switch on. Would suggest spend a few extra dollars though on a upgraded power supply in one way or on... Around 0 to 4ma Forums › help and How to › machine Setup/Troubleshooting K40. Bridged my P+ and P- ( GND ) and the 24V power supply in one way or on. If they are feeded from the anode to the LPS as the culprit this good... Are connected properly or piezo beeper that come with the end-stops back to the laser would stop supply also. 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Recycles these thankfully i have another K40 laser engraver cart holds the water reservoir and can be to. Help fund additional research ( like this one ), tools and parts that i return! Described in a K40 is a relatively complex and its the most unreliable subsystem of K40... 18Mm laser head suitable for small workloads though on a Cortex M3+ processor and is 7 faster... Problems with the end-stops – both of them as they are, make sure you have the... Not make any warranties about the laser DefuserPlus the site or in our.. Your problem any closer than this breaking the shot one pushing air in to begin with quite common the!