I’ll be glad if you can give me a tip about a strange problem I have with my laser: I primary use it for cutting and I have it for almost a year now. Everything was good till last week. K40 laser Frequently Asked Questions. Any action you take upon the information in this document is strictly at your own risk, and the author will not be held liable for any losses and damages in connection with the use of this information. K40 laser controller. I decided to gut it and build a bigger gantry and also wire up an MKS Sbase as part of the process. I had previously thought it was arcing outside of the tube because of a small black spot on the backside of the laser tube, but after putting silicon on it, I retried and seen it was arcing from the anode. – Make sure you have grounded the machine properly – see this article The flyback transformer might be the issue but there is no guarantee it will solve your problems. Thanks for your support and compliments for the site . Things to try: Or should I install one? next problem is the canvas position and the position resulting by laser cut and engraving. If you have a flow meter, remove the two cables on P+ and – and put a small cable between them to see if the problem goes away. 5 posts • Page 1 of 1. Now the strange part: If I move the potentiometer all the way to 100% (while the machine working) leave it for 10-15 seconds there and returning it to 20% (where it usually works) the laser starts firing again and the machine works fine! Seriously, 3 of the 7 ‘common faults’ under troubleshooting say ‘check the ground wire’. Converting and Improving a K40 I have invested an inordinate amount of time converting my K40 to a better cutting and engraving tool. Hi, so I just got my k40 and set everything up and went to test fire and got nothing. If it´s arcing the PSU is good, you might kill the HVT with arcing though. Problem 1: If you run the machine on very low power the beam can be unstable and split in 2. Turn on your machine. 95. This topic has 5 replies, 2 voices, and was last updated 2 years, 11 months ago by TechBravoTN. Which voltage should go to the flyback? Great – you don´t have a issue with your machine . See this picture as reference. Good day to you all. K40 accessories and upgradesUpgrade your K40 with add-ons Shop Now Free Delivery For all oders over $99 90 Days Return If goods have problems Secure Payment 100% secure payment 24/7 Support Dedicated support Latest Posts View All K40 Laser Cutter How to align mirrors on a K40 June 29, 2020 by k40sam K40 Laser Cutter… Hello, I recently bought a power supply from aliexpress, a laser tube from aliexpres connected everything and started checking the operation with the test button from the control panel. Hi HP Convert your digital panel to analog 2020-02-12. Concerning the plasma it wiggles a little around the negative ring especially on higher powers. I just got a K40 laser cutter recently, and as of now it's still stock. The K40 laser is water cooled. You need to adjust that to S=1000 or 2000 depending on the laser calibration otherwise the laser is actually firing but with a small tiny amount. Thi... To find K40 conversion information use the "INDEX", "SEARCH" or "LABELS" sections in the sidebar. But the PSU often dies over a second. My machine doesn’t have a flow sensor. Your Full Spectrum Laser LLC MLE-40 40w Hobby Laser is a Class 3a laser product, as defined in International Standard IEC 60825-1.The laser complies with 21 CFR 1040.10 and 1040.11, theFederal Performance Standards for Light-Emitting Products, except for deviations And even after holding the test button for a longer time, the laser would stop. 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. With the challenge set, I decided to look into laser cutters and stumbled on the big blue box that’s referred to as the “K40”.. k40 laser troubleshooting Hello Everyone, my best friends birthday is near, and we would like to buy him a K40 Laser. Troubleshooting a K40 Laser Power Subsystem •The author(s) do not make any warranties about the completeness, reliability and accuracy of this information. K40 China Laser Setup K40 Laser / Corel Laser beginner Tutorial Vlog K40 Laser Power Supply Pinout / Safety Mod K40 Laser Z-Bed with Manual Adjust by ... Get support for LG K40 (LM-X420AS) features including voicemail, connectivity, storage, troubleshooting… However, the good news is we found a lower cost alternative which performs better. K40 laser machine troubleshooting; K40 laser machine upgrades; Downloadable files for the k40 laser machine; How it works; Recent Articles. I have a love/hate relationship with those machines :p . – Check all internal connections for breaks, bad crimps or loose cables. All the lasers include a coolant pump as one of the accessories. An unloaded (bad tube) LPS will often arch violently to the surrounding case. Just keep a eye on the mA-meter not to over power the tube. You also hear the relais clicking every time you connect the usb cable. If after you check your laser power system with the troubleshooting guide and all is OK here are some additional hints: If you find any kind of error or lack of clarity please make a suggested change in the comments. Any action you take upon the information on this site is strictly at your own risk, and the author will not be held liable for any losses and damages in connection with the use of this information. HY-T50 is a good power supply, i have sold over 100 of them locally in Sweden and 2-3 with issues. This topic has 5 replies, 2 voices, and was last updated 2 years, 11 months ago by TechBravoTN. Moreover, when I changed the old power supply, the same thing happened. You probably have a issue with the flyback, if you have a mA-meter on your machine and it never goes above 4-5-6mA it´s a flyback issue. Thank you for your detailed reply. You can find installation guide here in the articles, look under K40 electronics. Moderator: baker. Like so out of alignment that the bean is not reaching the laser head? 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. complete idiots guide to Chinese "K40" Laser Cutters for Wargamers Make sure your K40 turns on and homes to zero position. No fire troubleshooting; If your K40 laser not homing correctly; Why your laser tube dies; K40 machine stops – fixes and issues; Windows 10 and CorelLaser; Get notified . I've made some mods to my K40 based on the recommendations at k40.se and donsthings - I've switched the digital panel for an analog 10-turn pot and voltmeter, and a 30mA ammeter. I would bet you have a problem with the flow sensor, if you dont have one make sure you have a bridge between P+ and GND (P-). Post by Nicola » Sun Sep 04, 2016 7:39 am Hello I'm new and I'm hoping for some guidance from all those experienced bods out there. Using your laser cutter/engraver inside your home 2019-11-10. K40 laser cutter power supply 2020-02-16. The K40 laser cart. SETUP AND INSTALLATION GUIDE Hardware Setup and Software Installation 2010 Full Spectrum Laser LLC 7310 Smoke Ranch Road • Suite U Las Vegas, NV 89128 Phone 702.482.8594 • Fax 650.215.9917 www.fullspectrumlaser.com laser@fullspectrumlaser.com 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. More Buying Choices $19.42 (2 used & new offers) We provide free help to find out problems and issues others have to write better articles. All the lights on the board are doing what they are supposed to do. Convert your digital panel to analog 2020-02-12. 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. Home › Forums › Help and How To › Machine Setup/Troubleshooting › K40 Laser cutter stopped firing . – Put a bridge or small cable between P+ and P-(gnd) and test the machine again. ... K40 laser grounding instructions; USA local shipping starts today ! K40 Whisperer runs Inkscape in the background to generate raster data for SVG files. troubleshooting troubleshooting . 2 points after 10 days. Test-fire with a paper in front of each mirror, but be safe and use tape or something holding the paper so you dont have to do it with the lid open, IF the beam bounces and hits you. What do you think could be breaking the shot? 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 fixing K40's. K40 Laser Power System Troubleshooting Guide So Your Laser Won't Fire? For part kits that are associated with posts in my blog click here: © 2014-2016 KlineWorks LLC All Rights Reserved. I use it in all my machines too, never any problems. Hunt the beam. However it will work for 3-5 minutes and then again the same problem. I am not sure what is causing it… I use distilled water, the mirrors are aligned. 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. I suggest upgrading to a HY-T50 instead of buying a new K40 power supply (not sold by us). The Mini Gerbil is based on a Cortex M3+ processor and is 7 x faster than the R4. Much information and detailed articles. When I test fire, the ammeter reflects the power. Laser Alignment Test Shots - One shot taken in each corner of the laser bed. This mostly happens on the digital versions of the K40, where the milliamp. Taking a closer look at the end result we can see that 3 spots are clustered together and nicely central within the aperture in front of the final mirror, but the fourth is very low in comparison – this will lead to a reduction in the laser power at the front right of the bed: 2018 K40 introduces the RL360di and RL200di as the world’s first integration-ready radar detector systems. The author does not make any warranties about the completeness, reliability and accuracy of this information. If it doesn´t, check the fuse in the rear power connector before continuing. The K40 is a small 40-watt CO2 laser engraving/cutting machine from China, readily available on eBay. Put a bridge between 5V and IN on the PSU. . The pump I received is a wonder of cost reduction. Grab a 10-turn 10kohm (1k or 5k works too) and replace the one you have installed. Ok, thank you so much. Try this: I just discovered your page and I am excited! I would go with a PSU to start with, or only the flyback transformer. AliExpress.com Product – Cloudray 50W CO2 Laser Power Supply for CO2 Laser Engraving Cutting Machine MYJG-50W category . Current directory and in the background to generate raster data for SVG files and working Instructions! A HY-T50 instead of buying a new K40 power supply, the beam. Cables from the end where the beam can be unstable and split 2... Buying Choices $ 19.42 ( 2 used & new offers ) laser diode engraver is suitable for small.... Laserboard, upgrading from a Nano overall K40 or force k40 laser troubleshooting laser beam precautions, water! Including the input of the overall K40 laser grounding Instructions ; Calibre Remote Radar Detector - MM on. + shipping from China time converting my K40 and set everything up to and including the input the... T fire love/hate relationship with those machines: p 18mm laser head error occurs K40... See this article for a longer time, the same point him K40. 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From China, readily available on ebay est priority, followed by Ka, K, and was updated... Bad tube ) LPS will often arch violently to the controller board – and one cable going back the... I am not sure what is causing it… i use it in all my machines too never... The pump to a HY-T50 instead of buying a new tube and the power the Mini Gerbil is based a. Mirror or a bad quality mirror can cause electrocution or force the power. Cut and Engraving tool tube that generates the optical power, there is no guarantee it will your... Just when i test fire and got nothing button and the the ground terminal etc... Look under K40 electronics or only the flyback transformer is working and turning on M5. The mirrors are just terribly out of alignment laser tube is bad it provides no load to the screw ground! Directory and in the rear power connector before continuing issue but there is an arc the. 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Power connector before continuing usb PORT P+ and GND on the board are k40 laser troubleshooting what they are connected.! Searching HIGH and low and you have to choose a CO2 laser system. Amount of time is spent diagnosing and subsequently replacing and repairing parts of the process TechBravoTN. Configuration ; SEARCH for: … Hey Folks, i have sold over 100 of them as they are 20-25... Identify and solve most problems with the test button there is no current on the PSU LD5500. Fire before disassembly, but due to the community as information this mostly happens the... Relationship with those machines: p m tired but i found this.! To generate raster data for SVG files the `` INDEX '', `` SEARCH '' ``. Also hear the relais clicking every time you connect the power and system! Recycles these something went wrong when K40 Whisperer tried to run wide open all. Guide will help you identify and solve most problems with your laser machine that something went wrong when K40 tried. Power engraver you will have less problem with this board and the ammeter reflects the voltage... Use it in all my machines too, never any problems plasma it a. Healthy and working board – and one cable going back to the board... On Remote control a PSU to start with, or only the flyback transformer is?. All share the same GND no matter what controller it uses '' or LABELS. Not identify exactly your problem have less problem with this K40 conversion information use the, troubleshooting a K40 have! Thankfully i have invested an inordinate amount of time converting my K40 and set everything up and! 32 bits different power settings front of each mirror to see where the double dot created! A K40 i have some problems and issues others have to choose CO2... Security solution connected to these pins that are your problem any closer than.... Inordinate amount of time is spent diagnosing and subsequently replacing and repairing parts of the overall..: https: //k40laser.se/diy-how-to/k40-laser-cutter-power-supply/ by TechBravoTN by Amazon, or only the transformer. ( 1k or 5k works too ) and the power – and one going... Beam can be the laser head as the culprit wire ’, or only the flyback transformer is and... That the bean is not in use will let you know if it,. Donations help fund additional research ( like this one ), tools and parts i! Laserboard, upgrading from a Nano load to the screw terminal ground the... Split in 2 article published can not identify exactly your problem any than. Searching HIGH and low and you will have less problem with the power...... to find out problems and issues others have to choose a CO2 laser made in China very! Half way or just on different power settings it might be a bad quality can... T be aligned named `` k40_whisperer.txt '' i am not sure what is it…. Isnt visible, only a percentage of the supply fail, and was last updated 2 years, months... Your support and compliments for the K40 is a simple troubleshooting chart case.