Two Brand New But Faulty Plasma Cutters - Can I Fix Them?

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  • Опубліковано 14 жов 2024
  • A Viewer called Julian bought a faulty plasma cutter from eBay and it turned out to be faulty, the seller sent him another, which also had the same fault. He asked me if I could have a look at them and possibly repair one or both. Let's have a look and see if we can diagnose the problem and hopefully get them working for him!
    I'm not an expert, but I do enjoy trying to fix things.
    If you enjoyed this video, or found it useful or helpful, please consider subscribing. It's free and you'll be notified when I upload more videos.
    Thank you for your support!
    Some of the tools and equipment that I use:
    The Famous Blue Mat: amzn.to/47bPNGK
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    170 piece electronics tool kit (security bits): amzn.to/3VnmHBh
    SMD Tweezer set: amzn.to/3t9GlW4
    Aixun T3A Soldering Station: amzn.to/3Xa8HMe
    Soldering Flux: amzn.to/3UDC0py Alternative: amzn.to/4dVRdcN
    Low Melt Solder: amzn.to/3QICZ5r : Cheaper Alternative amzn.to/3G4L3XK
    Grinding pen: amzn.to/3QCHE7v
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    DC Power Adapter plugs 38 PCS: amzn.to/49lCUMm
    USB Power Meter Tester: amzn.to/3R6NX4g
    SMD Component ruler 3x (for sizes of components): amzn.to/3TvfcWO
    Rework station: I was using a 858D clone but now using an ATTEN ST-862D .
    Other Equipment:
    Main Overhead camera: Sony HDR-CX450 with 3rd party remote and RODE VideoMic Pro
    Other cameras: Canon G7X, iPhone 6s, Go Pro Hero Silver 7 (which repaired)
    Microscopes: Amscope trinocular (clone) with FHD 48MP Camera V8
    & Adonstar AD409 Pro.
    Editing Software: DaVinci Resolve
    The above links are amazon affiliate links, and I may receive a small amount from Amazon at no extra cost to you, if you choose to purchase an item.
    #electronics #electronicsrepair #repair
    Plasmargon Plasma cutter repair
    Plasmargon E04
    Plasmargon E02
    Plasmargon E01
    Plasmargon E04 Error

КОМЕНТАРІ • 455

  • @fireguy_81
    @fireguy_81 2 місяці тому +18

    0:50 I like how the email says the fault code isn’t in the “destruction manual” and not the “instruction manual.” 😂

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +4

      😂😂😂yes I've heard the saying before 👍

    • @ianrichardson3228
      @ianrichardson3228 2 місяці тому

      We have always called it that 🤡

  • @Etiennevisvang
    @Etiennevisvang 2 місяці тому +14

    What an excellent insight into the workings of a plasma. Miine works fine but watching you working, imparts so much knowledge to know nothings like me. Thank you.

  • @BjornV78
    @BjornV78 2 місяці тому +19

    As a tip when dealing with Plasma cutters. The compressed air is not only for cutting the metal, but also for cooling the torch. During use, the arc gets up to 20000 to 30000 °C (36032 to 54032 °F). Using no air, or shutting down the cutter straight after use can cause the torch to melt.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +6

      Thanks for the tip 👍(not to have a melted one 😂😂)

    • @BjornV78
      @BjornV78 2 місяці тому +7

      @@BuyitFixit , i have seen it happen when i worked as a welder. That guy didn't make that mistake twice when the boss was furious 😂

  • @bobbygeorge77
    @bobbygeorge77 2 місяці тому +42

    You've got a good brain Mick. Great to see the process on investigation and repair. Keep at it!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +4

      Cheers mate 👍

    • @blder56
      @blder56 2 місяці тому

      Amen!!! ​@@BuyitFixit

  • @darrenwardell3079
    @darrenwardell3079 2 місяці тому +14

    You never cease to amaze me with your ability and skill to look at something from a different angle. Plus knowing that something doesn't always leave the factory correctly built in the first place. I also really like it when you use items that you have previously fixed in your vids. Hats off to you once again.

  • @thedankduck0218
    @thedankduck0218 2 місяці тому +5

    Great video, almost felt like a plot twist when you discovered the problem 👍

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Thanks 👍. Follow up video out soon!

  • @TheElectronicDilettante
    @TheElectronicDilettante 2 місяці тому +5

    As always… Great video, showcasing expert diagnostic and repair skills and technique.
    If you’re looking to learn how to fix electronics, start here. Go to video #1, press play, and pay attention. Diagnosing faults and failures, especially in unfamiliar systems, is challenging. While there are curricula available, it ultimately comes down to consistently asking if/then statements and maintaining a methodical approach. Always ask yourself “Why/What/How?” when you identify an issue.
    For example, if a radio won’t turn on and you find a blown fuse, replacing it might fix the problem temporarily. But without asking why the fuse blew, you might miss a power wire shorting to the ground when in motion.
    The host of this channel does an excellent job explaining these concepts, making it easy to follow and learn.
    Thanks for sharing your experience and wisdom with us!

  • @paulvale2985
    @paulvale2985 2 місяці тому +18

    Thinking outside the box to a genius level again. Great work Mick.

  • @georgestephens2593
    @georgestephens2593 2 місяці тому +7

    Welcome to Mick's troubleshooting master class.

  • @skysurferuk
    @skysurferuk 2 місяці тому +8

    I picked up a Lidl plasma, when they were in stock. So far, very impressed, but the supplied nozzles are too big. Dropping to a 0.3mm nozzle makes it work so much better. Always wondered what was inside of these little machines. Many thanks for this excellent repair. 👍

  • @fredwooding599
    @fredwooding599 2 місяці тому +9

    Not so great quality control, but you made is all good again. God job Mick.
    I just can't wait to get your bill for the intercom. It should be a "Doozy" lol

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +5

      I wasn't going to charge... but if you insist 😂😂😂😂

  • @ianrichardson3228
    @ianrichardson3228 2 місяці тому +2

    I bought the most expensive 3 function 180A welder/cutter I could find in China, hoping for reliability, they even showed me the factory. It gave an overheat warning after several days and less than 1kg of rods. As I despise anything electrical I immediately ripped the cover off to find 2 fried caps, on the top board, which is installed first. Electrical market lady identified them as cheap 230V items, and supplied 400V ones for 30P each. I soldered them to the original wires protruding from the board, supported them with aluminum as a heatsink, fastened by cable tie. That was 2015. 😊

  • @raygianelli3612
    @raygianelli3612 9 днів тому +1

    Mick, amazing deduction about the temperature issue! I don't believe that would have occurred to me.

  • @robertmjr7996
    @robertmjr7996 2 місяці тому +11

    Exactly what I needed on a Saturday Afternoon. Well done .

  • @OgOssman
    @OgOssman 2 місяці тому +6

    Yeah one things forsure, plasma cutters are notorious for failing not long after purchase. I had one a while back, used it for like an hour, and then it stopped working, was told, too much moisture in the air compressor, even though it had dryer on the line.

  • @terrym1065
    @terrym1065 2 місяці тому +4

    Recovering from Aortic Aneurysm surgery, very invasive. Saw video, well done.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +2

      Sorry to hear Terry, I hope everything went well and wish you a speedy recovery! I've just finished recording a follow up video as people were saying it won't work and you just bypassed the protection etc... stay tuned!

    • @lordjaashin
      @lordjaashin 2 місяці тому

      Sorry to hear. May Allah grant you speedy recovery

  • @MrSoundman1955
    @MrSoundman1955 2 місяці тому +2

    What a fantastic diagnosis! Ideally I suppose a new correct sensor would be fitted, but very well spotted sir!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thanks 👍I'm not sure if there is such a "correct sensor" or if there is another design fault with these, as most NTCs seem to follow a very similar temperature curve path. I did a follow up video since making this (with thermal camera and heat gun / freezer spray) to show that it all worked, apart from if the sensor failed or became disconnected. After making that video I then pinned a comment under the new video as I added another 2K of resistance to my original mod and now everything works perfect including if the sensor fails or becomes disconnected 🙂

  • @darkojovanovic007
    @darkojovanovic007 11 днів тому +1

    Great job how you detected the problem, my respect, love your contents, great job ❤️

  • @allenrusselljr
    @allenrusselljr 2 місяці тому +8

    Same codes as an Everlast 82i plasma cutter. This must be a clone of one.
    Edit
    I forgot to say excellent work !! I learn something new from every video of yours.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +5

      Thanks 👍Different codes on this machine, E01 is Under or Over Voltage, and E04 is Over Current on the Everlast.

  • @johnmolnar2957
    @johnmolnar2957 2 місяці тому +1

    Good detective work . My Buddy that's retired from electronics repair ( he still dabbles) often says, a lot of times faults are obvious, a lot of times they're not.
    you zeroed in very quickly to some of the faults for sure

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thanks 👍Yes, sometimes no so quickly like on the Kenwood mixer recently and the coffee maker I looked at 🙂

  • @briancalvey4997
    @briancalvey4997 2 місяці тому +9

    impressive skills of deduction on display there 👍

  • @GadgetUK164
    @GadgetUK164 2 місяці тому +8

    Awesome diagnose and fix there! 10/10

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +3

      Cheers mate 👍

    • @blder56
      @blder56 2 місяці тому +1

      ​@BuyitFixit Excellent response, Mick

  • @radoczi94
    @radoczi94 2 місяці тому +4

    Nice repairs, Mick! I'm really getting hooked to this channel.
    Some of these chinese welders really are rubbish. I have worked at an importer and we were looking for a new manufacturer. The sample unit they sent us was fine, but the production units had serious QC problems. A few units even had rectified mains wires pinched under a screw. I'm sure you can imagine the sparks, sudden darkness and the slight discoloration of the underpants.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +2

      😂😂😂😂Thanks mate, yes I can imagine. I've just finished recording a follow up video to this because of some comments.. stay tuned!

  • @joelkist6493
    @joelkist6493 2 місяці тому +5

    You sort the problems out pretty fast, nice.

  • @NicksStuff
    @NicksStuff 13 днів тому +2

    0:42 I hate it when the destruction manual is incomplete!

    • @BuyitFixit
      @BuyitFixit  13 днів тому

      Yes total destruction 😂😂😂

  • @philpowell6915
    @philpowell6915 2 місяці тому +1

    Just love how you work these issues out then resolve them, complete with full explanation for us mere mortals 👍

  • @garypoplin4599
    @garypoplin4599 2 місяці тому +3

    32:06 - 37:11 - After installing the 10kR _on the sensor side_ of that connector , the unit will still throw the E04 error if it is actually unplugged. You’re on the right track!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +3

      See follow up video, and pinned comment under it (as I made a slight modification again since recording the follow up video). Unit now works perfectly and will show E04 if it's unplugged (resistors are still on the PCB side) 😉👍

  • @plasmaDave
    @plasmaDave 2 місяці тому +6

    Well done getting those going. As for pretty much anything you pay for what you get. I run a Hypertherm, which is expensive but worth it if your a business. Duty cycle is the big restrictor on the cheap machines.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +3

      Thanks 👍Yes, heard of Hypertherm they are supposed to be the best 👍

  • @acswales
    @acswales 2 місяці тому +1

    Nothing like a Buy it Fix it video with your coffee on a Sunday morning. Excellent, as usual. Thank-you.

  • @johnwatson8820
    @johnwatson8820 2 місяці тому +2

    great fix ,yet again ,nothing seems to beat you in the end!! best wishes ,love your channel.

  • @geoffburnham3967
    @geoffburnham3967 Місяць тому +1

    I'm a little surprised that you soldered the resisters to the circuit board and not the sensor itself. That way the unplugged error would still work and have one less modification to the board. First of your videos ive watched. I did enjoy it. You have a new subscriber. 😀

    • @BuyitFixit
      @BuyitFixit  Місяць тому

      Thanks 👍That issue has now been fixed too, and the resistors are still on the circuit board side. I did a follow up video to this one (on the channel), and then pinned a comment under it as I made a slight alteration, so now everything works perfectly including if the sensor goes open circuit or becomes unplugged.

  • @luckywetland
    @luckywetland 2 місяці тому +1

    Mick, what an amazing fix.
    You're so brilliant, kind and generous.

  • @t1259sw
    @t1259sw 2 місяці тому +2

    Nice troubleshooting.

  • @sparky5543
    @sparky5543 2 місяці тому +1

    You, Sir, are quite amazing! I would have totally missed the temp sensor being the wrong one.. I did assume, being the wrong connector, the factory just found something else to stick in there, and didn't know the difference :) You have a new subscriber!! :)

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thank you, and welcome aboard 👍 Check out the FLIR camera I repaired or the solar inverter video (which I then needed a password from the manufacturer which they wouldn't give me!) or the AverMedia Live Gamer capture card I looked at.

  • @johnhousego9218
    @johnhousego9218 2 місяці тому +3

    Excellent! well worked out. Yet another great video, thanks.

  • @BobCumberbatch
    @BobCumberbatch 2 місяці тому +1

    Superb diagnosis, simply awesome.

  • @johnj4860
    @johnj4860 2 місяці тому +2

    This is something I'd like to have seen checked out by Big Clive. He's a genuine electronics expert.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +2

      I've done a follow up video on this, which should be out tomorrow.

    • @andymouse
      @andymouse 2 місяці тому

      BC ? Nah he's a hack Mr It is the real deal.

    • @Charlie_Crown
      @Charlie_Crown 2 місяці тому

      ​@@andymouse Big Clive is a hack, you sure? 🤔 ...nah, Big Clive is far from being a hack

    • @skysurferuk
      @skysurferuk 2 місяці тому +1

      @@BuyitFixit Looking forward tuit! 👍

  • @SkySky-zr3bt
    @SkySky-zr3bt 2 місяці тому +1

    I am simply amazed! Great video, mate!

  • @JohnChrysostom101
    @JohnChrysostom101 2 місяці тому +1

    Wow i would of never thought

  • @Hellhound604
    @Hellhound604 2 місяці тому +1

    Great video showing deduction and problem solving skills.👍👍👍

  • @linomoschin9521
    @linomoschin9521 2 місяці тому +2

    bella riparazione hai elaborauto un'ottima intuizione del problema grazie del video ciao

  • @evertwaldus7093
    @evertwaldus7093 2 місяці тому

    Hi Mick, again an amazing repair, wauw man I like you way of diagnostics and your films are so nice to look at. Also nice to see that you fix from small to big devices ,you’re a real hero and not scared of anything, I like it so much !

  • @gregorynichols9022
    @gregorynichols9022 2 місяці тому +1

    Hi buy it fix it. Nothing like a cct diagram with values fault finding. Maybe the Disributor in your country might have a techy you could talk too as well. Not that you need one!!!!
    Well done mate..

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thanks 👍I did a follow up video on this (with thermal camera) and then I made a very slight adjustment in the pinned comment below the other video. The unit now works perfectly including if the sensor is unplugged or fails 🙂

  • @cajuncoinhunter
    @cajuncoinhunter 2 місяці тому +1

    Great Fixes Mon Ami .... I do remember Julian saying something about some solder work in the first unit he bought .... That was mentioned in the note he wrote you .... That might be those other parts you noted toward the end of the video... They might be cheaply built , but they do cut thin metal....

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thanks Cajun, yes they work but not the best build quality. I've just finished recording a follow up video on these.

  • @grantcivyt
    @grantcivyt 2 місяці тому +1

    Always impressed by your knowledge and deductive skills. It would be interesting to know how long you work on these puzzles. I know it would be a hassle to track, but a work clock on screen would either cement you as a genius or give hope to the rest of us that hard work pays off. Even a rough estimate of time spent would be great.
    A fan from Florida

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Cheers 👍I'd have to keep starting and stopping the clock 😂😂I started these in the afternoon, then had other things I needed to do for a couple of hours, then came back did a bit more, then had food, came back again. I've seen me start a video and then do the rest over 2 or 3 different days as I don't do this full time.

  • @JonnyFix
    @JonnyFix 2 місяці тому +1

    Well done! I'm jealous of your ability to obtain freeze spray. The greenies here have ruined it for us.... Best I can find is a can for about $100 from CRC. Used to be 1/4 that and everywhere.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +2

      Thanks 👍I got it from someone at the repair cafe. You can also use one of those air duster cans if you use it upside down 😉

  • @mauricecotton7885
    @mauricecotton7885 2 місяці тому

    You are the GOAT LEGEND I HAVE 4 FAULTY PLASMA CUTTERS that have the same fault and I thought it was humidity on the board as sometimes they worked ok .
    I spent a fortune on air line water traps and air dryers😢

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Thanks 👍I now have ironed out the potential problem of the sensor being unplugged or failing. I have done a follow up video with a pinned comment (Make sure you read it after watching the video as it has new resistor values)

    • @mauricecotton7885
      @mauricecotton7885 2 місяці тому +1

      @@BuyitFixit thanks again.
      By any chance did you figure out what the other modification was about with the scratches and soldering?
      3 of my machines have the same high quality 😉modification.
      I'm just curious 👍

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      No I didn't investigate that.

  • @gutsngorrrr
    @gutsngorrrr 2 місяці тому

    That so funny. You really do get some amazing extras with these cheap Chinese pieces of equipment. If I'd been hunting that fault down, it would have driven me mad, as I'd never have guessed that being a problem.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thanks 👍I've since done a follow up video and pinned a comment underneath it with a further update.

  • @richard8181
    @richard8181 2 місяці тому

    Great fault finding and even better a good work around

  • @richardtaylor7199
    @richardtaylor7199 2 місяці тому +1

    Great job.

  • @599miata
    @599miata 2 місяці тому +2

    Great fix, mate.

  • @smca7271
    @smca7271 2 місяці тому +9

    Its a shame,they invest all that technology and effort and then fail on little details...ive had a cheap cut 40 for 15yrs and its still going,but initially it blew the main voltage reg to control boards, spark gap was incorrect, and blew the fets up,after replacing with more robust parts its been a great plasma cutter...the cost t to do it right first time would not have been much....shame they cheap out sometimes.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +4

      Nice, Good job on fixing yours 👍

  • @snafu2350
    @snafu2350 2 місяці тому +2

    I've got some bamboo kebab skewers from the local supermarket that would be far less hair-raising to point things out on a potentially live circuit board than a metal screwdriver (or pencil). They could also be used for applying hot-melt to inaccessible areas without cooling it down so much.. just a thought :) I guess gardening canes would do almost as well, albeit with ~3x the diameter
    Well done on the fix!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +4

      Cheers 👍I've got some skewers, never though of using them as "pointy sticks" which ironically is what they actually are 😂😂😂

  • @cambridgemart2075
    @cambridgemart2075 Місяць тому +1

    There's nothing like a design review when there are component shortages; evidently at the manufacturer, there IS nothing like a design review.

  • @chriswilson7493
    @chriswilson7493 2 місяці тому +1

    Another well reasoned fix. I'm considering getting a plasma cutter, but it won't be one of that make 😁 I bet it's got an appallingly short duty cycle, when and if it decides to work at all.
    Always looking forward to your repair videos, all the best!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Cheers Chris, yes I'd avoid these, get a half decent one. I think the one I have is an Eastwood Versacut, although hypertherm are supposed to be the best.

  • @brianwood5220
    @brianwood5220 2 місяці тому +2

    Your family is so lucy having you about. You can turn your hand to anything. Imagine if you teamed up with Colin Furze for a collaborations episode, WOW the subscribers you would get from that would be epic. That would be fixer verses creator. Thanks for sharing Mick.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      I've spoken to Colin a couple of times on email a few years back, when I was doing another project 😉

  • @TinMan-jb5gf
    @TinMan-jb5gf 2 місяці тому +1

    Like the idea of using the pot to check limits. Gunna start calling you Sherlock Ohms.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      😂😂😂😂😂😂😂👍

  • @michaeldotc2254
    @michaeldotc2254 2 місяці тому +1

    Well done, my man!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thanks, I did a follow up video on this and did another slight adjustment too(pinned comment on other video) so now it all works perfectly including if the sensor fails or becomes unplugged.

  • @JohnHi6
    @JohnHi6 2 місяці тому +5

    Those plasma cutters are as sketchy AF. Buy cheap buy twice and get a refund lol. The original buyer would be better off with a hacksaw! Great video and fault finding!!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Thanks 👍Yes, they aren't the best quality...

  • @MikeyMack303
    @MikeyMack303 2 місяці тому +1

    Good work, as always. Thanks for sharing!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      I've a follow up video out later today 👍

    • @gvet47
      @gvet47 2 місяці тому

      Found your interesting channel. Just some poor work with pc components and you got them fixed. Could not even match the air line connector! Good work 👍 ​@@BuyitFixit

  • @eternaloptimist2840
    @eternaloptimist2840 2 місяці тому +1

    I have one of these cutters, it was so cheap I expected little of it and it hasn't failed yet. But now I have to look inside to see how bad it migjt be, and if it would benefit from modification.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      It shouldn't need any modification if it's working. These units were not working at just below room temperature.

  • @davecole2230
    @davecole2230 2 місяці тому +1

    Good work 👍

  • @Exciteonium
    @Exciteonium 2 місяці тому +1

    Great fix /rework! unfortunately Quality Control seem a thing of the past😞, in this case the wrong plug on the thermistor gave the clue to the design fault🙂. Well done!

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thanks 👍yes it was the wrong plug that got me thinking about that 🙂

  • @nudebaboon4874
    @nudebaboon4874 2 місяці тому +1

    Good repair!

  • @jonathaningram4672
    @jonathaningram4672 2 місяці тому +3

    From a Chinese seller on Ebay, erm I snort laughed and some of my beer shot out of my nose. Independent traders Trotter & Co lol Manufactured by Bodge it & Scarper

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      😂😂😂😂😂

  • @stevedebeukelaer1424
    @stevedebeukelaer1424 2 місяці тому

    Hi nice fault findin and solution found. I really enjoy your trouble shooting.

  • @kareno8634
    @kareno8634 2 місяці тому +2

    Silly, favorite quote, (describes me): *'If it's not broke, work on it until it is'.^* But, what you did here gives it another meaning, or could be what meant all along. ^ ['Celica Tech']
    Where you using empty socket, seen corner of board, to plug in potentiometer?
    Not sure if Plasma cutter used, but Cut Away they did on *Francis Scott Key Bridge* over Patapsco River, just off Chesapeake Bay. Was quite a task, and busy area of Steel Dinosaurs moving the pieces.
    *Thanks!* Hadn't known Plasma Cutters required that many connections.

  • @MikeMcAuliffe-g2f
    @MikeMcAuliffe-g2f 2 місяці тому +1

    That's a bit of Sherlock Holmes work there. The QC on the two units is crappy. Great work.

  • @Kevinrichardsonministries
    @Kevinrichardsonministries 2 місяці тому +2

    I have the same Brand Plasma Cutter but mine is a PLC 65 Pro. It arrived not working, as well. One of the wires going to the power switch wasn't connected. Beyond that... once I got it working I found that it will only cut about 1/8 inch steel and it's supposed to cut up to 3/4 inch steel. That's why I bought the supposed more powerful unit. I have tried many things and I just can't get it to perform as advertised. Also... my units flame arc starts to misfire/sputter if I turn it up beyond 45 psi or so. Amp adjustment doesn't solve the problem either. I'm not at all happy with the unit other than the seller finally refunded my money in full and allowed me to keep the unit, as well. That's the only saving grace regarding the whole experience. I have replaced/upgraded the torch and the ground clamp and adjusted the arc setting gap inside the unit and I can't run above 45 psi as previously stated. Even cuts of 1/8 inch steel have slag and don't cut clean. I have good water filtration and plenty of pressure on my air compressor but still... no dice. My input voltage is 230 volts, so that's good too. Any ideas Anyone? I'd like to get this unit up to speed. That said... Thanks Mick for the video... I watched it all and enjoyed same. Subscribed...

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Thanks mate. I'm no expert when it comes to using and operating plasma cutters. I've got an Eastwood but only used it a few times here and there and only on around 3mm steel sheet.

  • @b92555
    @b92555 2 місяці тому

    Good troubleshooting Mick. I do have a problem with our solution. Looks like to me that you made a parallel connection of the resisters which means that the resistance of the circuit cannot exceed the 45k ohms of your soldered resisters so the machine can now overheat and not be shut down by the heat sensor. At least, according to my high school electronics course from 50 years ago.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Thanks 👍see follow up video and pinned comment under it 😉

  • @RB-yq7qv
    @RB-yq7qv 2 місяці тому +1

    well done

  • @marvelaturraz5405
    @marvelaturraz5405 2 місяці тому

    First, I'm extremely impressed by what he did in this video and I've learned a bit from it. Please forgive me if my question seems inane.
    Was his graph (@26:26) of PTC vs NTC a bit odd to anyone?
    There may be no substantive basis for this, but would it be more intuitive to lay out ∆T on the x-axis instead?
    To me it felt like trying to read something in the reflection of a mirror, as it required an abnormal moment to interpret. Am I just weird? 🤔

  • @wv146
    @wv146 2 місяці тому +1

    Great investigative skills!

  • @wisher21uk
    @wisher21uk 2 місяці тому

    Really good fix well double fix, Mick they were poorly put together to be fair. My first rework station didn’t work when I received it, I got a refund as no more were in stock and didn’t have to return it. There were 2 fuse holders and only 1 was used and guess where the fuse was….. that’s right in the wrong holder lol, then after a few months when using the hot air it didn’t shut off and the whole thing just melted and nearly caught fire lol. Thanks Mick really enjoyed it 😊

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Cheers Gary 👍I recently bought a 4000W speed controller/Dimmer to control the power of a 3KW heating element. The plug was non fuses and had a thin cable and the switch was only rated at 6A! So would have melted! The heatsink was far too small too so I gutted it, mounted the big triac on a computer CPU heatsink with fan, put it in a bigger case with fuses etc and now it's fine. Some sketchy dangerous stuff out there...

    • @wisher21uk
      @wisher21uk 2 місяці тому +1

      @@BuyitFixit oh wow Mick yes there definitely is, sounds like a great mod maybe you should let them know about it lol, the first thing I do is change the cable and plug I hate the non fused and un-sleeved plugs and copper coated aluminium cable, they’re a fire hazard

  • @lcjnsb
    @lcjnsb 2 місяці тому +1

    I'm an amature at electornics, but by adding the 14k resistors on the board didn't you just disable the overheat protection? If the thermistor fails it will not show the error code. Love your videos, keep up the good work.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Thanks 👍When the temperature rises the resistance of the NTC lowers. So it would be a lot lower than the 14.7K I fitted. For example think of putting a 10 ohm resistor across those 14.7K and then measuring it with a meter.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      I've just finished recording a follow up video because of a few comments such as yours, and I test it out by heating it up and cooling it 👍

  • @positivefix
    @positivefix 2 місяці тому +2

    I like to use liquid PTFE instead of thread tape, works a treat.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Interesting. Thanks for the tip 👍

    • @billdoodson4232
      @billdoodson4232 2 місяці тому

      I use Loctite 55 Thread Sealing Cord. It's a sort of PTFE string that is really easy to dispense and apply. Since starting to use it, I haven't had any leaking fittings that I know of in the last 15 odd years.

  • @atsimas
    @atsimas 2 місяці тому

    A similar channel has a variable voltage power supply, injects 1.2.5v, and with a temperature viewer he normally replaces what emits the higher temperature. Not that simple, but a good start.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      I've got one of those too, they are handy for finding shorts (like on the SSD hard drive I repaired) but this device didn't have any short circuits.

  • @gainmaster1
    @gainmaster1 2 місяці тому +1

    Very clever fix with temp sensor

  • @leofortey7561
    @leofortey7561 2 місяці тому +1

    I had the exact same unit. Mine would not adjust the current, it would only flash the display at 20. All cables were connected. I also had that internal leak at the gauge. My board was tight, though.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Strange, wonder what the cause of that problem was. Faulty potentiometer?

  • @wesleythomas6858
    @wesleythomas6858 2 місяці тому +1

    Great that you got it working. Does it still recognise if the sensor is unplugged or keep going until it fails catastrophically? Also, how have the resistors shifted the working temperature band? Will it work to a higher temperature now or cut out at a lower one?

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      If the resistors were fitted in series then the band would be shifted, but because the resistors are connected in parallel, as the temperature rises the resistance of the NTC will decrease and be lower than the resistors I fitted, so once it gets to a low enough level it will trigger the protection at normal. If the sensor somehow got unplugged (which it's now glued in) or failed open circuit then there is a possibility it could overheat.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      I've just finished recording a follow up video... where I heat and freeze the sensor so we'll see if it works like I thought it would 🙂👍

  • @steventodd1902
    @steventodd1902 2 місяці тому +1

    I think you will find that the flashing light is not OC but Deg C
    Great fix

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      @@steventodd1902 Thanks 👍

  • @Troutbum73
    @Troutbum73 2 місяці тому +1

    I fitted a chinese diesel heater in my campervan conversion, it stops working when the temperature is approx minus 3 degC or lower. Gives an error code but nothing in the handbook to say what it is. They sent me a new sensor but still same. Luckily only had a few days below that temperature but very annoying it wont work when i need it most. Makes me think its the same issue and now is a good time to sort i. Thanks

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      @@Troutbum73 yes it kind of defeats the purpose of a heater... I wonder if it's a similar problem. Might be worth disconnecting the sensor and see if it's the same error that it shows when below -3c

  • @ralphj4012
    @ralphj4012 2 місяці тому +2

    That was brave (or something) of you to plug them in prior to internal inspection. I lost track, but could there be an issue if the sensor failed open? I bet they have UK CA and CE labels, ho, ho.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      'Or Something'😂😂😂I didn't check for labels...Damn 'Always read the label' 🤣🤣🤣

  • @generaldisarray
    @generaldisarray 2 місяці тому

    Excellent work, as always.
    Question re the resistors, why not just cut a section out of one the wires going to the thermistor and solder in the resistors. That way if the thermistor became unplugged it would still throw an error.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +2

      Thanks 👍Cutting one wire would make them in series with the thermistor, and we want parallel as we want the resistance not to go lower than 15K. If we put them in series we would have 14.7K + the value of the thermistor so 25.7K or so (it was around 11K when I first measured it). It shouldn't become unplugged because I added glue 🙂

    • @generaldisarray
      @generaldisarray 2 місяці тому

      @@BuyitFixit Of course, I wasn't thinking, d'uh. True about the glue. I'm a fan of blobbing some hot snot onto connectors and through hole components, it just avoids any jiggling loose or broken component leads.
      You could always put them in parallel by going across both wires of the thermistor. I've had to do that several times to stop 12 volt LEDs I've retrofitted into cabin lights in various vehicles from continuing to glow when they're powered off.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Yes, I did think of that but thought it would be neater soldering on the back of the PCB 👍

  • @klaasdebaas007
    @klaasdebaas007 2 місяці тому +1

    Nice job

  • @JohnSmith-vi5pz
    @JohnSmith-vi5pz 2 місяці тому +2

    Hi Mick, It's Fred Smith, general manager of Heysham 2 nuclear power station here. We have a problem with one of the reactor cores not behaving and we can't solve the issue. I wonder if you could pop down with your Fluke meter and take a look at it for me please?

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +3

      Sure, I'll bring the radiation meter that I looked at in a previous video! 😂😂😂😂

  • @reiner0609
    @reiner0609 2 місяці тому +10

    I think your first thought that they used a NTC instead of a PTC is correct, but I think your "fix" with the resistors just disabled the over temperature detection completely. I don't think it will switch off now if it is used for a long time but instead will destroy itself... probably in a very unsafe way.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +10

      The hotter it gets the less resistance. That's why it showed error 01 and 02 when nearly a complete short. It will still do that as the resistance can still decrease to a few ohms.

    • @gregjohnson5194
      @gregjohnson5194 2 місяці тому +3

      So are saying the reason it went into temperature error mode with the freeze spray is because the resistance climbed to high? Than it’s a good fix because in parallel the resistance total always tracks the the lowest branch. I bet that made the sender happy to get two working units…Great job.

    • @jaketzi8816
      @jaketzi8816 2 місяці тому +3

      Reiner, i thought that too at first. But the "fix" only disables E04 - sensor disconnected by preventing the resistance to be able to go above 15k. The danger is that if the sensor really is disconnected/burned open the resistance doesn't drop to the E02 limit when overheating. I would have put the resistor betveen sensor wires, there it at least shows if connector gets loose but not burned open sensor.
      Edit: below -> above.

    • @gregjohnson5194
      @gregjohnson5194 2 місяці тому +3

      @@jaketzi8816 True that makes sense. Soldered to the board you’ll never know if the connector came off.
      Plus if you looked at the small board by the NTC connector there is a ten turn pot that could have been the calibration adjustment for the temp sensor I would have at least tried to ohm it out to see in it connected to the sensor. You might have been able to adjust it and not needed the resistor’s.

    • @tomshaw9846
      @tomshaw9846 2 місяці тому +2

      This is my favourite video of yours so far. Brilliant piece of lateral thinking to get to the temp sensor as the possible cause of both being faulty. Been going round the logic in my head for last 20 mins if sensor should have been ntc or ptc originally. I concluded ntc due to having 3 distinct fault codes but this would then mean that original units must have had 2 different displayed fault codes. Would have loved you to check at what temp the ntc actually gave fault code to prove your theory. Brilliant video!

  • @Slydder68
    @Slydder68 2 місяці тому +1

    well shit. I could use one of them. my last one died a while ago. lol. nice fix guy.

  • @theuglidog01
    @theuglidog01 2 місяці тому

    i learnt that cheap chinese is not always good! be it tools or food , even though i did not really understand how the fix worked , i did enjoy it all the same , thanks for another fix

  • @Garry1888
    @Garry1888 2 місяці тому +1

    Conan Doyle meets Fred Dibnah. Wonderful stuff.

  • @cpunut
    @cpunut 2 місяці тому

    Okay so this stops the error in a cold environment, but it still won't work as an over temperature alarm as designed as it's still an NTC. Great troubleshooting though! The poke around and look, magnifier sometimes required, method sure does seem to find so many problems.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      I had a few people say things like that. Check out the follow up video I did with thermal camera, freezer spray, and heat gun, and show it all working.Then the pinned comment underneath as I did make a very slight adjustment after that by adding an extra 2K ohms so now it also detects if the sensor fails or is disconnected 🙂👍

  • @billbarney4937
    @billbarney4937 2 місяці тому +1

    your car can be fixed too. just need an oem service manual or cd for your year/model. (auto transmission is the most complex part). as long as rust hasnt progressed too far which sometimes happens with cars in the northern states. will cars become obsolete and replaced by flying cars?

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Don't talk to me about bloody cars 😂😂I've had the LR discovery 4 in bits more times that I care to remember (body off at least 3 times). Had the gearbox out of the ML350 to do the CS oil seal but turned out to be the oil cooler seals right at the bottom of the V6. Got a friends renault on my ramp atm as it has a seized water pump and the timing belt tensioner had pretty much desintigrated not sure how it made it over here..

  • @thestickfarm
    @thestickfarm 2 місяці тому

    Nice job. Well done.

  • @dubsydubs5234
    @dubsydubs5234 2 місяці тому +1

    There's a socket on the top left that's unpopulated on both machines and looks like the correct type for the temp plug, I'm probably wrong but I couldn't stop thinking about it all the way through the video. 😀

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      I've just finished recording an update to this because of some comments.. stay tuned!👍

  • @Blacklab99
    @Blacklab99 2 місяці тому

    I might be wrong but the hole in the regulator you were trying to connect to, is for a pressure gauge. It’s always smaller than the in and out ports. If you do not have a gauge, just plug it since there is a gauge is on the front.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому

      Yes, it's for the pressure gauge on the front of the machine, but the supplied fitting that came with one of the machines is the wrong size 🤦‍♂️

  • @paulstaf
    @paulstaf 2 місяці тому +14

    YOU SHOULD have soldered the resistors onto the wire of the temp sensor so that if it ever got unplugged, it would still stop working like it was designed to.

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +10

      I did think of that, but the reason I didn't was resistors flapping around (although I could have used heatshrink etc it would have been messy. I chose to glue the connector in place. Both methods would however still have a problem if the sensor ever failed open circuit. I've just finished recording a follow up video on this.

  • @kevin30b90
    @kevin30b90 2 місяці тому

    It would have been nice to see the freezer / heatgun test again to see if the protection works. I think 15k in parallel with 1 ohm is still approximately 1 ohm, or did I misunderstand how it was connected?

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      I did a follow up video, and pinned a comment under it after making a slight adjustment

  • @neiltheplayer
    @neiltheplayer 2 місяці тому +1

    Coffee ✅, Comfy chair✅, computer on-volume up ✅, Buy it Fix it video loaded ✅ - Good morning Mick

  • @michaelbraaten
    @michaelbraaten 2 місяці тому

    I have… well, had, a Milwaukee M12 soldering iron myself. It was one of the many M12 and M18 tools that recently got stolen out of my work van parked in front of my house. ☹️ I only used it once or twice; I try my best to use a more traditional style iron/station (Aixun T3A at the moment) since I’m so used to using that style for all of my soldering at home.
    The Milwaukee was hard for me to use since I’m used to bringing iron to component or wire rather than the other way around. It is really too bulky to use like a normal iron in the situations I find myself in at work, but with an XC battery pack, it makes a decent stationary iron. I’m just so unfamiliar with using that method that I never really do it. Vicious cycle lol.
    I’m hoping to get some reimbursement from my employer for the tools, but I don’t think I’ll purchase the soldering iron again. They offer so many cool little M12 tools, I’m sure I’ll find a more useful one for myself.
    PS: that final test cut on the first unit looked a bit like the silhouette of a lamb’s head to me! lol 🐑

    • @BuyitFixit
      @BuyitFixit  2 місяці тому +1

      Sorry to hear about your tools. I bet that sucks 🙁 Yes the soldering iron is bulky, it is useful for things like soldering wires in a car for instance or tractor 😂😂

    • @michaelbraaten
      @michaelbraaten 2 місяці тому +1

      @@BuyitFixit for sure! It has a good ceramic heater element so it maintains temp pretty well. The one time I remember using it for sure was at the top of a 10 foot ladder, soldering a DB9 for serial control of a projector in a courtroom lol… but I really like using the T3A now because I got the newer version with the the cradle that attaches to the top of the main unit. Very compact, and more control with the T245 style handle and temp adjustment :)

  • @Electricworld-1
    @Electricworld-1 2 місяці тому +1

    You are a great MAN.🎉