The MasterTM you have the good camera in the front recording at 1080p 30fps but then you have that camera they found on wish recording at 0.1 frames per day
I swear its not just been linus's videos that have been like this, I watched a recent video with the exact same fps at some points I think somethings weird with youtube
What I took away from it was: 1. you aren't going to save money by replacing power bank batteries. 2. time and risk make it even less of a deal. 3. Buy an Anker. New powerbanks support newer phone QC methods anyway.
depends on what yo use the spot welder for afterwards, i built one of these years ago to convert power tool battery packs from ni cad to li po started doing it for my own use and eventually ended up making packs and selling them on ebay, made enough to buy a real spot welder and thus far im in the black on the deal. still selling reman battery packs today.
but you do risk deforming the cell's container and by doing so, render the cell unsafe for usage and in need of e-waste disposal. dendrites forming in the electrolyte are liable to cause the cell to undergo unscheduled thermal runaway (technical term for catching the battery and possibly yourself& your surroundings on fire..) needless to say the cell is definitely never functional after thermal event.
@@zaneandre6387 if your cells are being deformed by pulling off a zinc strip that's barely held on by millimeter-wide spot welds, then you have some seriously shoddy cells, which should be your primary concern. I've pulled dozens of tabs off of batteries then re-welded and used them for high current draw RC aircraft packs with no problems.
@@BillPickle i was talking about what happened to me when i pulled off tabs that were likely machine welded to the battery terminals. perhaps the can was thinner or weaker than others because i hadn't experienced it prior to the cells i repurposed from an old laptop battery pack. ill concede I have not pulled hundreds of battery tabs.
@@zaneandre6387 I’ve taken apart many Dell and HP laptop batteries for their good cells, never had an issue with messing the casing when pulling out the tabs.
@@chelarestelar hasn't he also said they try to record enough videos so if they miss a day there's a video to still upload? I'm not sure if I'm remembering correctly or not. But would make sense
I want to be clear: There is in absolutely no way you could possibly get electrocuted with this spot welder. The worry is in the battery cells youre welding exploding in your face for holding the button too long. You wana make it legit? Put it in a box, create a super simple time delay circuit and put an electrode on the end of that thing. Legitness
Yeah I laughed when he said 'electrocution hazard'. The only way you're electrocuting a person with 12V is by ramming electrodes into their brain or chest cavity. And you'd more likely kill them with blood loss or traumatic shock than electrocution. Definitely a burn and fire hazard as you said though. I want to make one with an adjustable time delay now dammit lol
I bet it would be safer when its finished tho! Gotta love ElectroBoom. Its amazing people actually do believe the "accidents" he has are genuinely accidental though, the guy is a genius and he can educate the world while also keeping them entertained. Legend.
Linus knows fuck all about electronics and it shows in most of the videos he makes. He often makes constant mistakes about it, spends too much doing it, and spreads misinformation.
Linus Tech Tips: *has an 8k camera and shoots video at 60fps* Linus's house: *B roll camera has horrible image quality and somehow manages to have frame drops*
The "close up" crappy video was shot on a webcam. I am surprised that Linus' webcam is so crappy though considering that he owns a tech review company lol
My only concern with using a relay would be the contacts could potentially weld shut or stick. I would use something mosfet based. Need some pretty beefy ones though. It would be easier to regulate too as you could PWM it.
@@XFoxTrot You dont really spot weld cells do you? He did absolutely terrible!! I dont think it was helping that the solenoid was clearly arcing closed but lets be honest, even describing this video as a bodge would be a little much as well, it was an absolute mess and nothing was done correctly!
@@handlemonium don't think so. In the beginning he said he felt a tickle so he quarantined himself. But according to other videos his been in isolation for about a month.
8:10 this isn't really a mistake because everything you said before it was right, but obviously you are using the capacity of all 4 cells. Putting cells in parallel increases amp hours while cells in series increases voltage. However, both increase total energy capacity which is essentially current times voltage times time, watt hours. Edit: Oah yeah and about 10:17. It's obviously not ideal but it's definitely not going to kill the battery if you do it properly (which you did), so good choice!
"When you solder, you have to heat up the solder itself and flow it on to the materials you're trying to join." NO! That will get you a cold joint that will have high electrical resistance and break easily. You need to heat the MATERIAL to above the melting point of solder and apply the solder to the MATERIAL. In practice, it helps to add a bit of solder to the iron to help transfer heat and a bit of flux to the material. To join materials, you should "tin" each one first. edit: and I'll bet that was the cause of the bad connection at 11:33
What he said is correct, you do have to both heat up the solder, AND flow the solder on to the materials. The solder will not flow if the materials are not also heated up. If you ever get into soldering SMD packages, this is something that is commonly done, the soldering iron is not a point, but a bit of a well to it which can store solder that you can brush across the contacts to solder due to the contacts being such miniscule mass, they heat up to the proper temperature extremely fast. This is called "Drag Soldering". You do however need keep in mind how much flux you have. Further, there is the mass production version of soldering called wave solder which is a literal vat of melted solder which the board with parts on travels through and gets soldered.
I used a Microwave transformer, 0 gauge welding leads, cheap Solid state relay (5v capable), random momentary switches from the microwave, arduino with LCD and rotator switch for the pulse signal duration, foot controlled switch , old 5v 2a power supply and some other things. The reason why I needed a precise timer is the difference of half a second to quarter of a second will result in a good weld or a hole in your strip and battery. This way, I don't have to fear controlling the timing. I also 3d printed the case. The Microwave was gotten for free from Craigslist. Just searched the free section for a broken Microwave. I've used mine enough to warrant the very small cost.
I build a same style spot welder a few weeks ago. I found a great timing relay, which controls the pulse from 10ms to pretty much every reasonable length. This makes it much more reliable, repeatable and its more consistent. The relay module is called XY-LJ02 and can easily be found on Ebay or Amazon for around 15$ locally or for less than 10$ from overseas. I also found using a tungsten needle from a TIG torch as the electrodes super useful. I used copper wire before but it lost its tip shape to fast due to the temperatures. The tungsten electrodes hold up way longer. I just ask someone who does TIG welding if he had any end pieces for me that he would throw away.
for the timing, you can also use a 555 timer in the monostable configuration, with R=1k+100k potentiometer in series and C=10uf and use like 5 IRFz44 or any high current transistors in parallel on the output. it's a very easy circuit to make, and requires only a few components : 555 timer, switch, potentiometer, 1k resistor, a 10uf capacitor, some high current transistors, and some 1-10k resistors for pull-up/down on the switch and transistors. note that you can increase the resistor value if you decrease the capacitor value and vice-versa. these values are for ~10ms-1s pulses. note that you can also use an arduino instead, and just switch the transistors with it.
@@satibel I still have my (Radio Shack Engineer's Mini-Notebook 555 Timer IC Circuits). I bet it's 30 years old. I took a quick look and it's archived online. Here's the link www.n5dux.com/ham/files/pdf/Forrest%20Mims%20-%20555%20Timer%20IC%20Circuits.pdf
@@steameier8590 www.ohmslawcalculator.com/555-monostable-calculator If you want the gist of it. Replace R with a resistor and a potentiometer in series, then put a transistor on the output. www.electronics-tutorials.ws/waveforms/555_timer.html has a bunch of similar circuits.
Linus: "DIY spot welder" me: "oh gawd, he will definitely electrocute himself or start a fire" Linus: "Colin was working on the spot welder" me: "ok. then go on"
@@b5a5m5 Have you seen the Car Audio Comunity with all the Lithium batteries and things. It can be bad! But yeah, basically just don't be dumb with 12v and you should be good. lol
That word is as contagious as like.. a virus of some kind. (can't think of a good example ¯\_(ツ)_/¯) You hear AvE say it once and before you know it you hear yourself saying it too.
@Hakovani DG If Linus decides to get rid of the beard when all this is over that’s how they should advertise it. Linus gets chased across his lawn by an unmanned lawn mower, gets run over, then gets left on the other side as clean shaven a new-born baby.
This homemade spot-welder is the best thing I've seen on Linus Tech Tips in a _long_ time. I want more videos like this that show me how to make reasonably-safe homemade industrial tools.
As technically as it is correct since you get it for free with every purchase, if you don't buy anything from the store you'd have to pay $10 for the sticker
I can confirm, this setup almost burned up my flat down. I strongly do not recommend it , no no no no!!!!! Unfortunately I was not warned, so you guys who read it and planned building this suicide thing, you are lucky!
For the record, I did use the bench sander... I just don't know where that clip went. But on the plus side, the tool I'm using there is a 3M EXL deburring wheel - probably my favorite tool ever -CW
Any time I hear someone say you can get something "at any automotive shop" I have to wonder what auto shop they're going to. Autozone and O'Reilly by me (Cleveland west side) don't even carry the right weight of oil for my car. Thankfully Walmart does.
3:32 The terminals on the battery are not “hot and ground”. They are just “positive and negative.” If however, you grounded either the positive or negative terminal, then that could be considered “ground” and the other terminal would be “hot.” Generally low voltage DC is referred to as positive and negative. AC power on the other hand has a hot and Neutral, which makes sense because the hot side can shock you, even if you are not grounded or touching the neutral. The ground wire should not carry any current unless there is a short.
3:50, there is no electrocution hazard at 12v even if you were covered is salt water. Voltage is too low to deliver enough current through the resistance of your skin to be harmful. (Needed to add that last part to appease some people even though it should of been self explanatory that is what I meant.) Can be a burn hazard for sure though. Like if it shorts out on a piece of metal that you are in contact with.
Lmao. I love it when people make comments in videos like this when they clearly dont know what they are talking about. The voltage is not too low, the human body resistance is too high, reduce the resistance of the body and then see if 12v is too low. Even better, wet your arm and lay it across a car battery and then say you dont get shock, actually dont do it as it might cause you some serious damage and I dont wanna see a video blaming me for trying it. Nice to see someone else had picked up on this as well as id started to think everyone just accepted it was safe!!
@@ChrisSmithy The skin resistance is too high, you'd need a higher voltage to get enough current to go through your body and actually cause damage (assuming you're not applying said voltage internally, but in this case even breathing would be dangerous since you could want to do it underwater). What kills in the end is the current flowing inside your body (and through your heart), increasing the voltage or lowering the resistance only allow more current to flow. That's Ohm's law: I = V/R. And by the way, an electrocution is always lethal. If you're still breathing after touching two wires, it was only an electric shock. If 12v DC is so dangerous/lethal to touch with wet hands, why is it considered a safe voltage in bathrooms then?
MrGordane let’s go from the top. Skin resistance is too high isn’t a statement you can really make, it totally depends on the lots of conditions if it’s wet it can drop to 1000ohms hand to hand, the shorter the distance the current has to travel the lower the resistance it experiences. So the conductors of opposite polarity being close together and the skin being wet will without doubt create a passing current that you will feel. I think the word electrocution is meaning different things to different people, I agree that originally it meant death, but as you’ll see if you look in the dictionary it actually says to injure or kill with electric. I’m taking it to mean injure as that’s unquantifiable and easier than arguing over what injure means. Oh and well done for copying what I said about ohms last in one of the other posts. I am quite familiar with it as I’ve been an electronics engineer for a lot of years
@@ChrisSmithy, when I say the voltage is too low I obviously mean too low to kill you because of it being too low to over come the resistance of your skin. (Ohms law, due...) It could potentially horribly burn you though if specifically it like shorts on on some metal you are in contact with. Also did just touch two the positive and negative of a car battery with my thumb and pinky with my hand soaking wet. You know what happened? Absolutely nothing because unlike in Hollywood, 12v Batteries aren't an electrocution hazard. I already knew this though from much experimentation with the subject and tons of experience with Electricity in general. Both low and high. It is obvious that you are the one who is making comments when you have no clue XD You can literally look it up and find hundreds of sources about how safe 12v is easily. If you don't want to take my word for it.
Let’s be honest, we all know the only reason we're this early is because there's literallly nothing to do right now...... quarantine is reeally something else
This was awesome to watch, and I gotta say Anker is definitely a worthy sponsor. All my chargers are Anker and they are awesome, and if you ever run into an issue they always make it right. Also their soundcore lineup is amazing as well. Anyways keep this kind of content coming it's awesome, been messing with all kinds of electronics during this social distancing stuff.
An arduino is super overkill. Just build a basic timer circuit lol. Charge a capacitor and have it discharge through a variable resistor. Welder only runs when the capacitor is discharging.
I was thinking the same thing about the next episode. Also, how do you self quarantine at home if you house burned down. And for anyone doubtful, yes you could burn down your house or apartment building doing this. Boy your neighbors would be mad.
It's not weak, it's just got far too low a DC current rating so it's arcing as it switches and building a small oxide layer that causes the internal contacts to stick.
@@gsuberland what, it's a relay for starter motors, judging by the size, probably for lawn mowers. They can draw easily 200 amps, way more than this little welder.
@@gsuberland if it's a car starter, car batteries run at about 14 volts and 600amps. So I'm not sure what battery he's running, but you might be right. Either way the momentary switch should be on the negative side of the circuit. On the positive side it could lead to arching, and worse case a system that stays on and causes a fire.
@@Thedatsuntech There's no difference on which side you put the switch, the current flow is identical either way. Contact arcing is usually due to excessive voltage (spark jumps the gap as contacts approach or depart, forming plasma which damages the contacts and can lead to sticking) but in an abusive use-case like this they're effectively welding the relay contacts together in the same way the welder sometimes sticks to the zinc strips.
Ehh it's not dangerous, 12v won't hurt you, but that battery can deliver a lot of current so things could get very hot if built poorly, and that would hurt.
In theory the spot welding should work better than solder but 8:43 shows the practicalities. TBH it's easy to buy DIY chargers on Ebay with tight spring loaded battery holders that don't require either welding or soldering; I've got two of such examples each with eight 18650 batteries in them and they work fantastically.
@@BankruptGreek I think the ATV battery, the relay, the nickel strip reel, and the time are the vast majority of the cost for this repair. Good 18650 cells can be found for $3 each pretty easily.
"Belt sander" BENCH GRINDER *12v battery* "Electrocution hazard" HARMLESS Also you really should try to find batteries of the same capacity when putting them in series.
@@Hoch134 this is true as long as you have a BMS monitoring each cell. A single cell could drop below a safe voltage while the overall pack voltage is still in spec, which obviously kills/shortens the life of that cell. Your packs capacity is also based off that single cell as it's the weakest link.
@@PghFlip no. they dont balance in different configurations, this is a well known drawback of the lithium ion chemistry. like a prev commenter said you need a BMS circuit monitoring each cell for truly safe operation and the reactionary "cell drop" that proper BMS will do to remove any damaged or underperforming cells from the array.
The beard finally reveals the plot holes in the linus media group timeline
Yep. Exactly why late night talk show hosts usually don't grow beards
@Joel Hamilton We gotta report this to the avengers
Keep the beard
yeah... but he should keep the beard... 👍😂
Harvard: You want scholarship ?
I paid $$$ to save $... sounds like every LTT episode 😂
stonks
@@mato_s stonksss
s t o n k s
Sounds like everything i do. :D
"my kids are sleeping" good time to blow the house up I guess...
At least they won't feel it
@@mattygoodtimes8347 lol you made that so dark so quick
Matthew Hayes oh hell nah piss off
I had that thought too...
Normal camera: Linus Tech Tips
Secondary camera: Linus Toaster Tips
I think 12fps looks good, idk about you.
@@DrRespectful 12fps would be OK if they were smoothly and equally spaced! 🤮
Still a 4K BRIO tho..
It actually hurt my eyes...
I thought that was my shitty computer freezing up on me again!
That 8FPS on the second camera is killing me.
Ikr the good camera at the front recording at good 1080p 30 FPS and then you have the trashy camera recording at 1080p 0.1 FPS
@@potatodaddy4935 Can you write it agian in english please?
The MasterTM you have the good camera in the front recording at 1080p 30fps but then you have that camera they found on wish recording at 0.1 frames per day
The MasterTM do you need it in Spanish now???
well, it sucks, that every video must be in 30FPS... its 2020 now, good content is and STAYS 60FPS...
LTT in January: cool new tech and builds
LTT in quarantine: whatever random shit Linus can think of
Which let's be honest, isn't necessarily a bad thing
So now is LTT 5 years ago?
Okay, this is so much better though!
@@XXDoMi77 Never said it wasn't :D
Honestly, I like these type of content
Linus: **is all about super high fps gaming**
His camera: **5fps**
more like 2fps ;)
More like 0.00000000001 fps
I swear its not just been linus's videos that have been like this, I watched a recent video with the exact same fps at some points I think somethings weird with youtube
ECHO༄ probably PewDiePie
ECHO༄ no, it’s his camera. That’s why he upgraded it a few days ago. This was recorded before then
"this project was inspired by me accidentally dropping it"
Ya know the rule so do linus
#justiceforthe$10kXeon
Very on brand
eh makes sense
LinusDropTips.
Nothing has terrified me as much as the phrase "DIY spot welder"
Non native speaker please explain
@@РусланБелов-и1й "do it yourself"
Self made/ home made spot welder
Why?? Most diy spot welders are really good tho..
@@shadowreality8594 yeah the ones you hear about
@@shutout951 Wow! Okay, maybe I won't. Thank you.
Us: Did you save money?
Linus: Well yes, but actually no.
Just watched the new warowl vid, did you get it from there? Edit: there is a correct answer.
What I took away from it was: 1. you aren't going to save money by replacing power bank batteries. 2. time and risk make it even less of a deal. 3. Buy an Anker. New powerbanks support newer phone QC methods anyway.
depends on what yo use the spot welder for afterwards, i built one of these years ago to convert power tool battery packs from ni cad to li po started doing it for my own use and eventually ended up making packs and selling them on ebay, made enough to buy a real spot welder and thus far im in the black on the deal. still selling reman battery packs today.
@@yetshi Don't Li Po charge at different amps and such, seems like you'd need to replace chargers for the modified packs?
Sedace is correct. You can use a NiCd charger on NiCd only. Can't charge NiMH or Li ion battery
is it just me or was the framerate on the second camera reallly low
You are not alone
I saw it too
that FPS made me think my pc is about to hit the sack...but lol that camera sucks
It's a Webcam just look on the left you can spot it
It is very low
"You basically can't get them off"
A pair of pliers and some determination says otherwise, sir.
and perhaps a little sanding to clean it up
but you do risk deforming the cell's container and by doing so, render the cell unsafe for usage and in need of e-waste disposal. dendrites forming in the electrolyte are liable to cause the cell to undergo unscheduled thermal runaway (technical term for catching the battery and possibly yourself& your surroundings on fire..) needless to say the cell is definitely never functional after thermal event.
@@zaneandre6387 if your cells are being deformed by pulling off a zinc strip that's barely held on by millimeter-wide spot welds, then you have some seriously shoddy cells, which should be your primary concern. I've pulled dozens of tabs off of batteries then re-welded and used them for high current draw RC aircraft packs with no problems.
@@BillPickle i was talking about what happened to me when i pulled off tabs that were likely machine welded to the battery terminals. perhaps the can was thinner or weaker than others because i hadn't experienced it prior to the cells i repurposed from an old laptop battery pack.
ill concede I have not pulled hundreds of battery tabs.
@@zaneandre6387 I’ve taken apart many Dell and HP laptop batteries for their good cells, never had an issue with messing the casing when pulling out the tabs.
As soon as I heard "home made spot welder" I was sold.
I was solder
@@pieterluyten4513 how are you solder?
I think handing him a diy suicide machine is not the best idea... Call me crazy on that 🙄
Either the videos are out of order or Linus gave himself a shave when he grabbed the live leads.
Out of Order.
I think that on a wan show he said the vids were coming out not in order
@@chelarestelar hasn't he also said they try to record enough videos so if they miss a day there's a video to still upload? I'm not sure if I'm remembering correctly or not. But would make sense
@@DuDZZ yeah, also true, I think
dumpsterdawg there out of order
“Paying 100$ to save 20$“
*_i use the money to save the money_*
Stonks.
Just like the economy ;)
👍
Ekonomiks
The more GPUs you buy, the more money you save
I want to be clear:
There is in absolutely no way you could possibly get electrocuted with this spot welder.
The worry is in the battery cells youre welding exploding in your face for holding the button too long.
You wana make it legit? Put it in a box, create a super simple time delay circuit and put an electrode on the end of that thing.
Legitness
Yup. I'm figuring driving the contactor with a secondary solid state relay and a 555 thingy would make things a bit better controlled.
Yeah I laughed when he said 'electrocution hazard'. The only way you're electrocuting a person with 12V is by ramming electrodes into their brain or chest cavity. And you'd more likely kill them with blood loss or traumatic shock than electrocution.
Definitely a burn and fire hazard as you said though. I want to make one with an adjustable time delay now dammit lol
This is why you need ElectroBoom to make the welding pack.
We need to ask ElectroBoom to review this video
@@arjunhamdalah4139 Good idea
@NZgamer and it would use a full bridge rectifier.
I bet it would be safer when its finished tho! Gotta love ElectroBoom. Its amazing people actually do believe the "accidents" he has are genuinely accidental though, the guy is a genius and he can educate the world while also keeping them entertained. Legend.
"It's night time now. My kids are in bed.. annnd I'm ready to burn the house down around us."
No kidding, that's what I also thought
after having seen his quarantine beard for so long, this feels like going back in time
Because this is back in time
beacuse it is lmao this is from when he started working from home, he has been for a couple weeks now i think
did he get sick with covid?
@@TechnologistAtWork he has made several videos after this one where he has shown no symptoms.
It was probably just allergies or a dry throat.
@@goosegg4653 I get that every other day. Such a terrible season for all of this to come together.
His secondary camera looks like he’s recording a Zoom call
Internet: When did you become an expert in Electrical Engineering?
Linus: last night.
Linus knows fuck all about electronics and it shows in most of the videos he makes. He often makes constant mistakes about it, spends too much doing it, and spreads misinformation.
@@TurnierRustung Chill
His employees also know very little about it, which frankly is concerning seeing as it's what he employs some of them for
@@TurnierRustung atleast he know more than some of my professors in undergrad.
@@TurnierRustung this guy took April Fools day video too seriously
Linus Tech Tips: *has an 8k camera and shoots video at 60fps*
Linus's house: *B roll camera has horrible image quality and somehow manages to have frame drops*
The "close up" crappy video was shot on a webcam. I am surprised that Linus' webcam is so crappy though considering that he owns a tech review company lol
@@emu071981 I mean, have you seen the lambo.
Let's watercool and oc that webcam!
@@emu071981 even a relatively cheap c920 can do 1080p 30fps!
@@emu071981 its supposed to be a top of the line webcam, its a Logitech Brio
"DIY" and "Spot welder" are not things I usually want to hear in the same sentence
just like "Makeshift" and "flamethrower"
Same goes for "Making the easy way" and "nuclear weapons"
And yet it worked fine.
My only concern with using a relay would be the contacts could potentially weld shut or stick. I would use something mosfet based. Need some pretty beefy ones though. It would be easier to regulate too as you could PWM it.
@@redsquirrelftw you can get relays purpose built for this sort of thing though.
"I spent $100 to save 20 bucks!"
*Stonks*
so basically like investing in bitcoin?
@@pixelmaster98 Except bitcoin valued itself more than 30k% in a few years
more like spend 20 to get 1000
The video made atleast few thousand via Anker.
I didn't know they made other things, I remember them for reliable third party VR cables.
This is literally my job. I spot weld lithium ion cells for a living. Seeing a LTT vid on it feels weird lol
So how did he do?
@@erikbakker1639 besides nearly venting a cell, pretty good👍
@@XFoxTrot You dont really spot weld cells do you? He did absolutely terrible!! I dont think it was helping that the solenoid was clearly arcing closed but lets be honest, even describing this video as a bodge would be a little much as well, it was an absolute mess and nothing was done correctly!
@@ChrisSmithy but it was entertaining 👍
XFoxTrot I agree with that!!
I'm so early Linus hasn't even grown a beard yet.
Actually he did, but shaved it off with the welder ;)
@@handlemonium don't think so. In the beginning he said he felt a tickle so he quarantined himself. But according to other videos his been in isolation for about a month.
@@Superkirbeh woosh
@@handlemonium It's an Old video, Linus is quarantined for a month
@@tijmen24nl was that a joke I missed? Where was the joke?
8:10 this isn't really a mistake because everything you said before it was right, but obviously you are using the capacity of all 4 cells.
Putting cells in parallel increases amp hours while cells in series increases voltage. However, both increase total energy capacity which is essentially current times voltage times time, watt hours.
Edit:
Oah yeah and about 10:17. It's obviously not ideal but it's definitely not going to kill the battery if you do it properly (which you did), so good choice!
This was the comment I was looking for (specifically the edit)
This needs more likes.
current times voltage gives power (watts), not energy (watt hours)
Did you mean "power capacity" as in energy ? because watt hours is not power.
@@koolkimoov yes, that is more accurate. Thanks!
Your home production quality is over 9000x better than the late night tv hosts youtube thinks I want to watch haha
"When you solder, you have to heat up the solder itself and flow it on to the materials you're trying to join."
NO! That will get you a cold joint that will have high electrical resistance and break easily. You need to heat the MATERIAL to above the melting point of solder and apply the solder to the MATERIAL. In practice, it helps to add a bit of solder to the iron to help transfer heat and a bit of flux to the material. To join materials, you should "tin" each one first.
edit: and I'll bet that was the cause of the bad connection at 11:33
Yeah... I really don't recommend looking at their videos where soldering is involved 🙈
you're completely right, but lets not pretend that was the most incorrect part of this video lmao
they suck at these things
But the hold problem of heating batteries for a long time still exists
What he said is correct, you do have to both heat up the solder, AND flow the solder on to the materials. The solder will not flow if the materials are not also heated up. If you ever get into soldering SMD packages, this is something that is commonly done, the soldering iron is not a point, but a bit of a well to it which can store solder that you can brush across the contacts to solder due to the contacts being such miniscule mass, they heat up to the proper temperature extremely fast. This is called "Drag Soldering". You do however need keep in mind how much flux you have.
Further, there is the mass production version of soldering called wave solder which is a literal vat of melted solder which the board with parts on travels through and gets soldered.
Linus’s voice is higher pitched without the beard
Change my mind
this video was made before he started growing it out. he's still going mad tho.
Linus without a beard looks like a teenager.
@@justraven7526 Like you're one to speak.
Akshay J actually, you’re an idiot. This video was uploaded on Floatplane on 28 March.
@@justraven7526 Ah yes, the exact reason why people dislike Linus's fanbase.
Linus: we gonna do tech stuff
Me: w h e r e b e a r d
its a vid from the beginning of the quarentine
@@pmigbarros thanks for explaining
w h e r e b e a r d
@@keegyweegy7803 w h e r e b e a rd at
im unfollowing until he grows it back
I used a Microwave transformer, 0 gauge welding leads, cheap Solid state relay (5v capable), random momentary switches from the microwave, arduino with LCD and rotator switch for the pulse signal duration, foot controlled switch , old 5v 2a power supply and some other things.
The reason why I needed a precise timer is the difference of half a second to quarter of a second will result in a good weld or a hole in your strip and battery. This way, I don't have to fear controlling the timing. I also 3d printed the case.
The Microwave was gotten for free from Craigslist. Just searched the free section for a broken Microwave. I've used mine enough to warrant the very small cost.
Alex: I want a spot welder
Linus: We have a spot welder at home
The spot welder at home:
Linus: I am a little sick...
Also Linus: Let's do something dangerous.
I build a same style spot welder a few weeks ago. I found a great timing relay, which controls the pulse from 10ms to pretty much every reasonable length. This makes it much more reliable, repeatable and its more consistent. The relay module is called XY-LJ02 and can easily be found on Ebay or Amazon for around 15$ locally or for less than 10$ from overseas. I also found using a tungsten needle from a TIG torch as the electrodes super useful. I used copper wire before but it lost its tip shape to fast due to the temperatures. The tungsten electrodes hold up way longer. I just ask someone who does TIG welding if he had any end pieces for me that he would throw away.
for the timing, you can also use a 555 timer in the monostable configuration, with R=1k+100k potentiometer in series and C=10uf
and use like 5 IRFz44 or any high current transistors in parallel on the output.
it's a very easy circuit to make, and requires only a few components :
555 timer, switch, potentiometer, 1k resistor, a 10uf capacitor, some high current transistors, and some 1-10k resistors for pull-up/down on the switch and transistors.
note that you can increase the resistor value if you decrease the capacitor value and vice-versa.
these values are for ~10ms-1s pulses.
note that you can also use an arduino instead, and just switch the transistors with it.
@@satibel is there a circuit plan available?
@@satibel I still have my (Radio Shack Engineer's Mini-Notebook 555 Timer IC Circuits). I bet it's 30 years old. I took a quick look and it's archived online. Here's the link www.n5dux.com/ham/files/pdf/Forrest%20Mims%20-%20555%20Timer%20IC%20Circuits.pdf
@@steameier8590 www.ohmslawcalculator.com/555-monostable-calculator
If you want the gist of it.
Replace R with a resistor and a potentiometer in series, then put a transistor on the output.
www.electronics-tutorials.ws/waveforms/555_timer.html has a bunch of similar circuits.
This, this here makes it so much better.
I love the "do not drop" sticker. They knew you were gonna use it for sure.
Linus: "DIY spot welder"
me: "oh gawd, he will definitely electrocute himself or start a fire"
Linus: "Colin was working on the spot welder"
me: "ok. then go on"
MGL 12V is pretty harmless
@@b5a5m5 Have you seen the Car Audio Comunity with all the Lithium batteries and things. It can be bad! But yeah, basically just don't be dumb with 12v and you should be good. lol
@@b5a5m5 12V but enough Amps to melt metal. And it's heavy and full of interesting chemicals. There's lots of potential to harm self :)
"Should I help you?"
Linux: no keep filming. If I burn the house down the views will be so worth it
PG Plays Video Games Theyre at the office
@@tj9959 that's a funny looking set
@@tj9959 they're not, that's the house
Its linus
@@the-trancestation woooooóoøsh
Linus:
don't solder batteries. the heat will kill them
also Linus:
First time uses spot welder and blows up battery....
LMAO
Nope Nope Nope, outside now. Need to get BigClive's explosion containment pie dish
Yeah he probably should have trained on few strip before going on live batteries 🙄
I guess he did, but maybe more would have been a good idea ha
You can solder them if you're fast enough, many diyers do that
Ive blown a lithium ion battery. Samsung one i played with it. It was fully charged and blow. It was scary....
4:52 AvE reference. "And... Corntact!"
I was looking fo this comment, haha! :D
@@DonnieX6 As was I, and not having found it, I had to. Hahaha
That word is as contagious as like.. a virus of some kind. (can't think of a good example ¯\_(ツ)_/¯) You hear AvE say it once and before you know it you hear yourself saying it too.
I think the neighbor shaved Linus's beard with his lawn mower
@Hakovani DG
If Linus decides to get rid of the beard when all this is over that’s how they should advertise it. Linus gets chased across his lawn by an unmanned lawn mower, gets run over, then gets left on the other side as clean shaven a new-born baby.
Too damn bad, to be honest. I'm a married straight guy, but stubbly linus had me feeling conflicted with his sexiness.
@@mattwinward3168 As long as it's a Dollar Shave Club sponsorship.
This was recorded before the beard.
So atleast that's a relief
with self-made one )))
"For my project i need gloves." - He doesn't wear them during actual work - #Lienus
That got me too
I believe he never said gloves, and I was a bit concerned if we need gloves at all 😅😅
Probably because he realized it's hard to do this with large gloves
Been watching since the garage days and never realized just how out of order the videos come out until Linus grew a bit of quarantine fuzzies.
This homemade spot-welder is the best thing I've seen on Linus Tech Tips in a _long_ time. I want more videos like this that show me how to make reasonably-safe homemade industrial tools.
Linus went from an edgy teen to a middle-aged dad in a year.
In less than half a year
In couple of months
Can we keep him?
4:23 Sticker pack $0.00 USD, finally something within my budget
coool3331 eh it’s still above my budget.
Geralt of Rivia you want to get paid to receive stickers?
@@speedyboi1289 They probably want it like the oil prices at the moment :P
Still more expensive than a barrel of oil
As technically as it is correct since you get it for free with every purchase, if you don't buy anything from the store you'd have to pay $10 for the sticker
The children are sleeping, let s do some thing that may burned the house down. To make it a bit more thrilling, let s do it in the dinning room.
What’s wrong with the dining room?
@@HishamXExcellent question I wonder if he will answer
@@HishamX i dont know, what do you think that isnt wrong with it?
I can confirm, this setup almost burned up my flat down. I strongly do not recommend it , no no no no!!!!! Unfortunately I was not warned, so you guys who read it and planned building this suicide thing, you are lucky!
@@7in1 I mean, Linus is literally warning this is not a good idea in the video.
Linus: I'll be using a diy spot welder
Me who knows how to weld: this can only end one way
Yvonne: "Should I help you?"
Linus: no keep filming. If I burn the house down the views will be so worth it!
2014 Austin Evans: Am I a joke to you?
Austin wasn't recording
@@meldealba-ruiz9900 Great observation there bud
Unbox Master what happened in 2014?
@@SnowyRivals his house burnt down and he lost everything
The one TH-camr more unironically cringe than Linus Sebastian. Austin Evans.
4:34 "belt sander"
*shows B roll of bench grinder*
Surprised they didn't use any handy dandy tweezers in this project...
they probably used both and forgot to get b-roll of the sander
For the record, I did use the bench sander... I just don't know where that clip went. But on the plus side, the tool I'm using there is a 3M EXL deburring wheel - probably my favorite tool ever -CW
@@LinusTechTips CALLED IT! I trusted in you Linus
@The Furox You guys realize Linus didn't make that comment, right? Colin literally signed his initials at the end lol
Any time I hear someone say you can get something "at any automotive shop" I have to wonder what auto shop they're going to. Autozone and O'Reilly by me (Cleveland west side) don't even carry the right weight of oil for my car. Thankfully Walmart does.
If they don’t have a generic aftermarket starter relay then what would they stock? Besides ugly bling?
there are quite a lot of bullshit auto shops out there
@@peterg.8245 car shops sell anything besides ugly bling? /s
guess where the bigger markup is...
In texas you can practically rebuild a classic at a good auto parts store. I know bc my friend rebuilt an 83 el camino to pristine condition.
@@oceanbytez847 that's awesome
3:32 The terminals on the battery are not “hot and ground”. They are just “positive and negative.” If however, you grounded either the positive or negative terminal, then that could be considered “ground” and the other terminal would be “hot.”
Generally low voltage DC is referred to as positive and negative. AC power on the other hand has a hot and Neutral, which makes sense because the hot side can shock you, even if you are not grounded or touching the neutral. The ground wire should not carry any current unless there is a short.
Always have a "Explosion containment pie dish" near by when playing with lithium based pixies. lol
I know that reference :)
@@XdewGaming I was just about to say the same thing! :D
Bigclive.
You can tell what channel you watch lol Gotta love that BigClive.
sure and it is pink, very good for the isle of men.
I love how you can see how old a video is depending on Linus’s beard 🧔
Vizman216 no the video is old
From the beginning of his quarantine.
Or maybe he shaved
And also because he pretty much said that this was several weeks old.
"i woke up with a tickle in the back of my throat"
*astronomia starts playing*
enthusiasticGeek aaaah but dont drop the coffin loool
3:50, there is no electrocution hazard at 12v even if you were covered is salt water. Voltage is too low to deliver enough current through the resistance of your skin to be harmful. (Needed to add that last part to appease some people even though it should of been self explanatory that is what I meant.)
Can be a burn hazard for sure though. Like if it shorts out on a piece of metal that you are in contact with.
it would probably hurt if you licked it tho.
Lmao. I love it when people make comments in videos like this when they clearly dont know what they are talking about. The voltage is not too low, the human body resistance is too high, reduce the resistance of the body and then see if 12v is too low. Even better, wet your arm and lay it across a car battery and then say you dont get shock, actually dont do it as it might cause you some serious damage and I dont wanna see a video blaming me for trying it. Nice to see someone else had picked up on this as well as id started to think everyone just accepted it was safe!!
@@ChrisSmithy The skin resistance is too high, you'd need a higher voltage to get enough current to go through your body and actually cause damage (assuming you're not applying said voltage internally, but in this case even breathing would be dangerous since you could want to do it underwater).
What kills in the end is the current flowing inside your body (and through your heart), increasing the voltage or lowering the resistance only allow more current to flow. That's Ohm's law: I = V/R.
And by the way, an electrocution is always lethal. If you're still breathing after touching two wires, it was only an electric shock.
If 12v DC is so dangerous/lethal to touch with wet hands, why is it considered a safe voltage in bathrooms then?
MrGordane let’s go from the top. Skin resistance is too high isn’t a statement you can really make, it totally depends on the lots of conditions if it’s wet it can drop to 1000ohms hand to hand, the shorter the distance the current has to travel the lower the resistance it experiences. So the conductors of opposite polarity being close together and the skin being wet will without doubt create a passing current that you will feel.
I think the word electrocution is meaning different things to different people, I agree that originally it meant death, but as you’ll see if you look in the dictionary it actually says to injure or kill with electric. I’m taking it to mean injure as that’s unquantifiable and easier than arguing over what injure means.
Oh and well done for copying what I said about ohms last in one of the other posts. I am quite familiar with it as I’ve been an electronics engineer for a lot of years
@@ChrisSmithy, when I say the voltage is too low I obviously mean too low to kill you because of it being too low to over come the resistance of your skin. (Ohms law, due...)
It could potentially horribly burn you though if specifically it like shorts on on some metal you are in contact with.
Also did just touch two the positive and negative of a car battery with my thumb and pinky with my hand soaking wet.
You know what happened? Absolutely nothing because unlike in Hollywood, 12v Batteries aren't an electrocution hazard.
I already knew this though from much experimentation with the subject and tons of experience with Electricity in general. Both low and high.
It is obvious that you are the one who is making comments when you have no clue XD
You can literally look it up and find hundreds of sources about how safe 12v is easily. If you don't want to take my word for it.
Let’s be honest, we all know the only reason we're this early is because there's literallly nothing to do right now......
quarantine is reeally something else
Wait till you reach 5 weeks of quarantine like us spaniards
Quarantine? I thought it was just called "living"
No I just went to the toilet and then refresh yt and this came up
Lucky for me, I have online school!
Yay...........
ರ╭╮ರ
This is my daily life. I know it needs to change
I would really like to see a beard-timeline
Title: I spent $100 to save $20!
That just seems like spending $80 with extra steps
He actually saved -$80
monster hunter dude big brain moment
same coment as me =/ rip u said it first
monster hunter dude STONKS
@@maxortega8073 ok, I'll delete it but dont try getting smart again
This was awesome to watch, and I gotta say Anker is definitely a worthy sponsor. All my chargers are Anker and they are awesome, and if you ever run into an issue they always make it right. Also their soundcore lineup is amazing as well. Anyways keep this kind of content coming it's awesome, been messing with all kinds of electronics during this social distancing stuff.
Demonstrating a project that ends up with "we don't recommend you doing this at all".
Very good tip, Linus Tech Tips, very good tip. Thank you.
what framerate was the one camera running at, it looked like a slide show
Same here, all the close up shots where really bad.
Yeah i thought at first it was my TV
If you look in the top left corner of the wide shot you can see it's just an old Logitech webcam, and I presume Linus just didn't have a better b-cam.
Should’ve ditched the footage honestly, ruined it for me
@Uhhhhh agree
"Aand corntact"
Someones been watching AVE lately
Engage safety squints!
Gentelmans
He let the smoke out
DIY angry Pixie zapper
Well they’re both Canadian
fiskfisk33 came here to see if anyone noticed that😂
"Factory-installed blue smoke!" You are my hero! Always interesting. thank you!
Seeing Linus without a beard beings back memories of “This is your brain, and this IS YOUR BRAIN ON DRUGS”...
This is getting trippy....
Beard, no beard, Beard, no beard
i fort this was an old video at first sight, looks like the old Linus is back dropping as normal
so this is how you feel when you travel through time
Burns battery and throws it out
Better do everything without my gloves now
PowerCore Fusion we love to see it! One of the best things I ever bought! I love that it will simply charge itself with the folding prongs
Linus' neighbor the following day wondering why his back yard is full of dead batteries.
...and why car(ATV) battery gone missing.
it was linus's revenge for the lawnmower on that techlinked episode
"Clean shaven Linus can't hurt you."
Enter diy spot welder...
oh oh
"Corntact"
AvE: "WHAT BUMBLFUCK DISTURBS MY SLUMBER?!"
Loved the AvE reference.
lol he should send this to AvE
Yasssss!
I think they are both Canadian
@@christophermcgrew9871 They both live fairly close to eachother too. Only as couple hours drive in the same province.
Great Scott! What a fantastic DIY spot welder!
I'm so glad LTT post great content multiple times a day. It makes sitting around the house on my day off so much better. Thanks LTT staff.
You also need a lot of life insurance when operating a home made spot welder.
Watching those reactions make me want a crossover of Linus with Electroboom.
Totally worth it! Would love to see that.
No XD Linus is too stupid
Thanks for putting me in your video, sir. :)
How did this comment get lost.
you may need a "arduino" driving relay to have the same time on every weld. maybe arduino - optocoupler - mosfet - relay - boom ?
Skip the relay part. Just use 10 high current mosfets in parallel. Works better and is easyer control with the arduino.
What a great ideia Nicolas!
I used a raspberry pi with a relay board for mine
An arduino is super overkill. Just build a basic timer circuit lol. Charge a capacitor and have it discharge through a variable resistor. Welder only runs when the capacitor is discharging.
GreatScott has a video about spotwelding at hope.
So is anybody gonna talk about the frame rate of that second camera?
Was looking for the same thing down here lol thought it was my phone at first was like wtf
I guess for consol players thats normal but I think it's close to unwatchable!
@Alfie Richardsits 1 potato per minute
Was looking for this, I thought my phone was lagging (it does that) but noticed it was only on one perspective.
Agreed
Linus: DIY spot welder
Me: *has TKOR flashbacks*
RIP Grant Thompson
His kids are in the new video
Back when that channel was good rip
@@andremartinez418 yup, the channel has gone downhill after Nate took over
@@sanjays9080 But what if they freeze dry the channel?
www.lttstore.com/
12:30
suffocation, no breathing, don't give an f if i short my batteries out
Last resort :D
Linus: So risk your life, house and family so you can save $20
Me: nice
He should buy a complete battery pack instead of individual batteries at the first place.
Those battery pack just cost 5-10USD on some internet store.
Youre asking a lot of a guy who wears socks with sandals.
@@joelau2383 He could've bought a new power bank if he wanted to. the whole point of this video was him getting to use his "diy spotwelder"
Next episode “Linus burns his house down” I hope he has a fire extinguisher in his house
He'll build his own to save a couple bucks first
I was thinking the same thing about the next episode. Also, how do you self quarantine at home if you house burned down. And for anyone doubtful, yes you could burn down your house or apartment building doing this. Boy your neighbors would be mad.
Title change: How I blew my hands off with a car battery!
4:37 "a short trip top the belt sander" - shows a grinder
look the script was probably written by someone who didn't know what they were talking about
12:30 Nice Papa Roach reference 🤣
It starts at 12:27 actually btw 😅
The relay is waaay to weak, this is why it got stuck when welding (it didnt have enough "beef" to disconnect the contacts inside).
It's not weak, it's just got far too low a DC current rating so it's arcing as it switches and building a small oxide layer that causes the internal contacts to stick.
@@gsuberland what, it's a relay for starter motors, judging by the size, probably for lawn mowers. They can draw easily 200 amps, way more than this little welder.
@@octane613 The CCA on this battery is 200A. The short current is going to exceed that significantly.
@@gsuberland if it's a car starter, car batteries run at about 14 volts and 600amps. So I'm not sure what battery he's running, but you might be right. Either way the momentary switch should be on the negative side of the circuit. On the positive side it could lead to arching, and worse case a system that stays on and causes a fire.
@@Thedatsuntech There's no difference on which side you put the switch, the current flow is identical either way. Contact arcing is usually due to excessive voltage (spark jumps the gap as contacts approach or depart, forming plasma which damages the contacts and can lead to sticking) but in an abusive use-case like this they're effectively welding the relay contacts together in the same way the welder sometimes sticks to the zinc strips.
"I've been wanting one of these for a long time!"
Proceeds to hold up an absolute death trap.
Ehh it's not dangerous, 12v won't hurt you, but that battery can deliver a lot of current so things could get very hot if built poorly, and that would hurt.
In theory the spot welding should work better than solder but 8:43 shows the practicalities. TBH it's easy to buy DIY chargers on Ebay with tight spring loaded battery holders that don't require either welding or soldering; I've got two of such examples each with eight 18650 batteries in them and they work fantastically.
Dam the fps on the second camera is letting me nervous
Nice little AvE reference there. I feel this kind of Break It Yourself project would get the approval of ole Uncle B.
what is AvE
@@callumdingley youtube channel
Linus: 'I spent $100 to save 20 bucks'
*Stonks*
Do you think he gets more than $80 from Anker?
do those batteries cost $100.. I don't get it
@@BankruptGreek I think the ATV battery, the relay, the nickel strip reel, and the time are the vast majority of the cost for this repair. Good 18650 cells can be found for $3 each pretty easily.
@@tallskinnygeek yes but those equipment carry over to future projects, I hate their clickbait titles sometimes.
loved the AvE reference "aand corrnact!"
Glad I'm not the only one
Same
"Cut my life into pieces, and all that".
I see what you did there...
I saw that too!
I was wondering why nobody commented on the Papa Roach reference 👀
"Belt sander" BENCH GRINDER
*12v battery* "Electrocution hazard" HARMLESS
Also you really should try to find batteries of the same capacity when putting them in series.
Not really. You have to make sure that the voltage is the same but you can differ in capacity without any problems.
@@Hoch134 this is true as long as you have a BMS monitoring each cell. A single cell could drop below a safe voltage while the overall pack voltage is still in spec, which obviously kills/shortens the life of that cell. Your packs capacity is also based off that single cell as it's the weakest link.
@@bryanjk You are right, thanks for the clarification. I didn't think about that.
@@bryanjk new to bat packs, be gentle. would it be ok in parallel though? self balancing, no?
@@PghFlip no. they dont balance in different configurations, this is a well known drawback of the lithium ion chemistry. like a prev commenter said you need a BMS circuit monitoring each cell for truly safe operation and the reactionary "cell drop" that proper BMS will do to remove any damaged or underperforming cells from the array.
3:48 Factor blue-smoke 😁🤣 haven't heard that since my electrical days. Very difficult to reinstall!!
Really good tip on the spot welder... Buy to tungsten carbide scribe's to use as the electrode so they don't weld themselves on the parts.
The title should be: How to create your own note 7
Pretty much! Also soldering directly on the cells isnt bad for them... they just explode... Stay the fuck away from bare cells
4:37 a short trip to the belt sander.... Pretty sure that is a bench grinder but hey XD
Great idea on the spot welder however. Really liking this.
2:48
Thank you linus for not destroying me
Your mechanical & electrical hands-on videos are awesome! Pls keep going👍