I'm Making The World's Largest Articulating Lamp. (Part 3)
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Horse box rear door springs
Please forge a mattress, maybe with pocket springs. My back is killing me.
Surprised you didn’t stack the springs? Springs inside springs my friend.
Who wouldve thought that watching a man make a giant lamp would be so entertaining!!!
How ya goin?
I'd love to see your attempt of a similar project.
Only thing that would make this better is if Alec’s dogs were also out in his workshop
In boots no less. Weird.
Alec stop, you are giving the madman ideas
This spring tension is possibly the most dangerous thing I've ever seen you do, and that's saying something. Attach those suckers really well and please be careful, gentlemen. People die trying to tension their own garage doors.
I think you should have your base able to be picked up by a pallet jack/forklift. So you can move the finished lamp without disassembling it
WILL this create an anticipated repeat of a "it shal not be named" event?
When designing extension springs, a larger diameter will actually make a weaker spring. For a stiff spring you want a small diameter and a thick wire gauge
I would suggest putting a length of steel cable down the inside of each spring attaching it at both ends. This will prevent large bits of spring flying around if the spring breaks. The length should be the length at fill extension.
(apologies if you are doing this, or if it has already been suggested.)
Safety first!
You MUST attach a counterweight where the springs are so that the springs don't have to do as much work. A large spring like that can cause a lot of damage
Like sudden death.
Quite right 👍
Demonstrably untrue as shown by the original.
You just need to balance the loads correctly.
A counterweight would be a possible solution, but it’s not recreating the original, which is the point of the series.
@@A1BASE But physics says you cannot "just scale up" something. You must do the math before and then build it. This entire project is as dangerous as playing with dynamite. The masses and forces involved are huge and if not correctly managed, can cause major injuries or death.
Take a look at the weight of the one they are building. Do you think that scaling the original lamp by a factor of 7, the final weight of the bigger one will be exactly 7 times larger?
@@A1BASE The point wasn't that springs wont work. The point was that springs which can hold 250 kg at half a meter of extension are extremely dangerous.
Your friend Colin Furze is an absolute wizard at making cone shapes in steel; he even had some hacks/tips on a fairly recent video l.
Ron Covell also does lots of stuff in terms of lighter sheet metal shaping and some of the techniques (former work) might be useful if he doesn't have access to a large enough slip roll.
I would definitely hit up Collin Furze about rolling the metal he has done it a lot and has also learned a lot of tips and tricks.
OMG, I was thinking the same thing, especially after seeing his new pizza oven video where he was also rolling a cone out of sheet metal. coincidence?🤔
I just written the exact same thing....
@colinfurze how close are you to this hooligan that hasn't watched your glorious videos? Can you help him out?
I feel like some sort of hydraulic would be safer than trusting a huge spring like that haha but then it wouldn't be the same i guess =\
thought exactly the same. and 'hydraulic operated lamp' sounds badass
Yeah messing with garage door springs is a veeeeeeerrry bad idea.
No need to die to a spring. Using a closed hydraulic system like you see on heavy equipment tilt deck trailers could work.
Ok
Or could use gas springs, that's what I usually use for that kind of application.
This is super dangerous. Maybe have some safety straps like a vertical garage door spring would have
This whole project is a death trap. It seems they just blindly scaled up the dimensions of a table lamp, but objects don't scale like that. It's the whole square-cube law principle. When you double all the dimensions of an object, you increase its mass by a factor of 8. Meanwhile, sectional strength is very roughly proportional to surface area. You can't just scale up an object while keeping the proportions the same. If you want a lamp twice as tall, the members will need to be more than twice as thick. It's the reason elephants and insects have completely different body plans. It's the reason tiny animals can routinely lift many times their own body weight or leap many times their own height. Things don't scale linearly. A lamp this big should end up looking more like a cherry picker/aerial work platform than just a giant desk lamp.
When seeing the earlier parts of this project, I assumed they had done all the proper structural calculations, and they just left those out for the sake of the video. But if they had done those calculations, they should know in advance exactly what strength of spring they should need. It seems clear that they just blindly scaled up the original lamp, without any consideration of the actual forces, moments, and stresses involved.
What they are building here is not a cool sword or some giant novelty Thor's hammer. They're building a structure. And they're building at a scale that they have no experience with and clearly lack the expertise to do.
Looking at that frame-spring connection was particularly concerning. They should have started with building the lamp shade, figured out its weight, and then done all the structural calculations from that. What's that bolt rated for in shear? How much force do those springs need to be able to hold on the final lamp? What's the shear strength of the square tube the bolt is passing through, in both gross shear area and net section fracture? On a bolt that long, moment is a concern. All of these things and many others should have been figured out before they even picked up a torch. When you're playing at this scale, you need to do this, unless you want to see you or someone you care deeply for die horribly. They should have done the calculations and then applied a big factor of safety, maybe a factor of 5, due to all the uncertainties involved.
I'm a structural engineer. I have a bachelors and masters in the field, have worked professionally in it, and have taught many courses in structural analysis and steel design. I wouldn't walk into the same building as this death trap they're cobbling together. They are in way over their heads, and they are gambling with their lives. The energy in springs that large is terrifying. If one of those snaps or tears out one of its hanging bolts while you are near it, it will cut through you like a stone through air. If something fails and that heavy steel frame drops on you, you are done. It will crush your head like a watermelon and smash your bones to jello. They are gambling with the lives of Alec, Jamie, and any camera operators or anyone else present but not in front of the camera.
There's a reason buildings are designed by engineers, and that we don't just drop a pile of steel off on site, unleash some welders with an unlimited supply of coffee, and say, "right on boys, go build us a structure!" The calcs are all done and considered well in advance. Plans are signed and stamped by engineers who have degrees in the field, years of experience, and hold a professional engineer's license. That's not to say welding and fabricating aren't skills of their own, they absolutely are. Even just an apprentice welder with a month of experience can probably weld circles around most people with graduate degrees in structural engineering. But when you reach a certain scale, you leave the realm of fabrication and enter the realm of structural analysis and connection design. It's hard to say where that line is exactly, but this project has certainly crossed it.
Alec, if you see this, for your sake, the sake of anyone involved, and for the sake of the families and loved ones of yourself or any of your crew, I urge you to abandon this project immediately. You need to stop, go back to square one, and rethink this whole thing before someone ends up dead or maimed for life. You are playing with forces you clearly do not understand. Cobbling things together is fine at a certain scale, but when you start working on sufficiently large structures, you need to apply the actual principles and mathematics of structural engineering. And the fact that you don't have any idea what spring you need proves beyond a doubt that you have not done these calculations.
You could easily lose a limb or your life, or you easily kill someone very close to you with this project. End this before a disaster happens. Unless you want to be dead or doing your future fabrication with one arm or in a wheel chair, I suggest you stop this immediately. Or, if you simply must go on, make sure you have some really good first aid on site. Think tourniquets and the types of kits used to stabilize the wounds from semi-automatic rifles. If you simply must continue with this, at least make sure you have enough medical equipment on site that you or Jamie won't just bleed out and die on the floor before the ambulance arrives. And make sure you have an up to date will and funeral arrangements planned.
@@TanyaLairdCivil It's just a silly project. You sound insufferable bro.
@@TanyaLairdCivil Wow, that was well written. I really hope he does see your warning. Even without education in structural engineering, you can tell there are so many ways for this to go wrong. Alec, please think about this, take a step back and look at what you are doing. Many of us have been following you from the beginning. We don't want to watch someone loose a limb or die.
@@TanyaLairdCivil That's probably the most thorough thing I've ever read on TH-cam. And your cargo ship is ridiculous.
@@TanyaLairdCivilpost this as a standalone comment instead of a reply so he's more likely to read it!
Use a pneumatic chair spring (or two). They will typically handle 150kg each. It's a compression spring so you will need to make a cradle so the lamp base holds the top and the arm wraps around the bottom. Far safer than regular springs. If you want the "look" then just put it inside an underpowered metal spring.
Can't wait for part 23 when Alec finally gets to install the bulb.
I wonder if mrjdesigns (in the UK) is up to a contribution of a suitable bulb?
I think 23 parts are not enough. Back in the days he was blacksmithing a wonderful sword in a few parts and now he cuts a nail out of paper in 47 parts just to present the sponsors. Sorry, but it's getting boring...
Eh it hasn't been that bad these past few videos. I remember at some point it got ridiculous.
I guess that when he was younger he was obsessed with blackmitting and it showed. Now he has bills to pay which changes the projects he takes
@@ehsnils I'm assuming he'll just use the biggest one he can easily source.
I for one is hoping that he at least starts off putting in something like just a tiny LED, or another tiny bulb like one from those electric candle lights for christmas trees, just for the meme of putting a tiny light bulb in a giant lamp. 😆
This feels like a colin furze project. A collab with them would be awesome.
Light at the end of the tunnel
That's what I kept yelling at my screen!
Colin is too busy digging :D
Agreed!
He might need a light@@witchdoctor6502
I feel like calling up a certain guy named Colin who likes to dig tunnels and getting his source of springs might’ve been worth a shot.
Springs like that are super dangerous. You might get away with much smaller ones if you put a hydraulic piston/ram inside the spring. By the time you add piston 3 in the opposing position it should hopefully hold position if sized right and increase the holding power by a lot more than just springs. Since it's so tall you could just make them fully hydraulic if you prefer. That would allow you to move it up and down without needing to get in a ladder. Just an idea. Loving your channel!
You have to know that if you multiply a length and keep proportions on the final product, the volume will grow to the power of 3.
The weight is logically following.
So if you make a 5 time larger lamp, the weight will be 125 times heavier.
Thanks. I was about to post something like this. Physics don't lie.
The square-cube law bites many people who think bigger is better.
And the problem with springs is their strength only increases by a power of 2. (guessing, since their maximum strength would come from the cross section)
5 times the lamp, 125 times the weight but only 25 times the spring strength. So he would need 5 times the spring?
His lamp is going to turn into a molten glass trebuchet.
Correct and if had made the arms out of aluminum.....problems solved
And if you make an 8 times larger lamp with the same proportions, it will weigh 512 times as much
In the same way that I'm really grateful that Will didn't get injured by that falling power hammer, I'll be really grateful if nobody gets injured by this assembly. There's a reason that overhead lifting standards are as stringent as they are
For both the springs and the rolling of the lampshade, it might be an idea to take a look at Colin Furze. He recently presented an idea for how to use a bit of angle iron on a sliproller to get a perfect cone diameter on your steel, much easier to watch his video than have me try to explain it. He also built a bicycle where he replaced the far with springs, so maybe he knows where to get really strong springs.
Nice , I Just left a similar comment , love me some Colin Furze 👍🏻
you can put smaller springs inside the larger spring and stackup the strength that way as well.
Manually adding eyes to those springs is a very bad idea. They are going to snap from fatigue and drop that lamp onto someone. This is definitely the scariest component of any project I’ve seen from you. Otherwise, very sick so far
Car springs should do the job. If there is no suitable spring: you have a forge, a torch and a lathe. Thats enough to make your own spring.
But keep in mind that springs are storing a lot of energy. A huge spring can easily cut a finger of or break an arm or leg when they are released.
I've been watching Alec for years now. This is the first project where I've been cringing with how unsafe everything feels. Someone is going to get hurt...
How about hydro forming a giant ball like in colinfurzes channel and cutting it in half for the lamp shade
I was thinking that the lampshade shape was most definitely not a pure cone. Hydro forming sounds very appropriate.
You should definitely just extend the spring mount so it gets more leverage
Have you considered using a tension gas spring? Similar to the gas spring on your car trunk/hatch but they pull instead of push. They are available up to a few hundred kg force.
What about using car suspension springs? You can get different spring rates depending on the car quite easily
Car springs are compression springs, using them in place of tension springs (or the wildly dangerous torsion springs shown in the video) is a recipe for injury
You can also use air springs they are stronger for their size than typical coil springs and they include a damper system which would help prevent the lamp from moving too much
Practically, once the lamp is deployed the lamp arm will be hanging over the base. That would have to act like a sort of counter weight. Also, once the lower segment is raised up past a certain point, the spring force required will be significantly less. You could make it work in certain positions, but do make sure to limit the travel of the segments to a point that the springs can keep the forces reasonably balanced. There are industrial springs much larger, look at those or manufacture them by yourself 🥸
Colin furze has the perfect roller to make these cones! Also a sneaky Collab would hit hard too
You guys needs to be so careful around garage door springs. That thing is going to be a deathtrap.
that spring you bought is a torsion spring,
no expanding, no contracting, twisting!
Perfect time to partner with Collin Furze! With all of the tunnel building and hydroforming, he would have just the knowledge (and tools) you would need.
I know he’s busy digging a tunnel but I’m honestly surprised that building something like this and this big of scale that Colin Furze isn’t a part of the project!
You should take the smaller spring, and add it to the the larger one from the inside.
Great work! Can't wait to see the the lamp complete
I bet you already thought of this but Colin Furze would be able to roll a cone and he has tons of vids where he does it. I dunno how far away from Colin you are but might be worth a road trip to him to use his setup if he is willing. Also Colin has some videos on hydroforming which would be a good way to do the bowl shaped part of the lamp. In short if you know Colin, call him and ask him what he would do cuz I feel like that lamp shade is right up his alley. Absolutely love this whole build too! I think you should do more scaled up builds after this one. Keep up the great work sir!
In which Alec finds out why ants can't be scaled up either.
That said, counterweighting the moment arm with tungsten would help a lot.
Counter weight it with anything, hang an anvil from it. That’d be an awful lot of tungsten… lead is cheap AF and easier to find in large quantities … where are you going to get kilos tungsten and I gotta assume it would be prohibitively expensive
Square cube law
This is the Alec Steele we know and love! Can’t wait for the next installment.
These springs under so much tension make me uneasy, are you sure you don't want to add a counterweight to reduce the required force? You also might want to try weaving two springs into each other to get a stronger spring with a small footprint.
You should try leather working again, it would be great to see some more custom sheaths like you did with the bowie knife.
I was absolutlly terrified every time you were casual around those springs.
Could extend the arms the springs connect to further from the pivot to give you more leverage
At this rate, he’ll be lucky to be done by spring.
We can only hope it doesn’t take till fall. Will would have to come back for that.
if we are unlucky, he will be completely done in by the Spring.
Oof
"It could kill us so well." I feel like this sums up the whole project.
See Colin Furze for the rolling part. He's got a short on a hack even how to use a piece of angle iron to roll it perfectly (in a sheet steel roller). As for springs.... please get a couple hydraulic arms for a safety mechanism to prevent someone gettin hurt if the springs should fail for any reason. Also... round the edges on that lamp shade so it's not a giant slicing machine of death.
Could have used gas shocks like those found on hoods and hatchbacks. Obviously a bit bigger or just add a few of them on each side. Would have also prevented the lamp from over extending or going to their direction.
I think you should use air assisted springs. Big air cylinder internally charged with nitrogen acting as a helper to a comically large spring outer.
It would then be trivially easy to adjust, but the linearity would be trash
There's spring formula using springs stiffness constant that could be used (F=-kx), there are torsion, compression and tension springs (you are using a torsion spring here), you have an easy lever to calculate the force required to balance those loads. A lot less effort could be spent if a bit of thinkering was done, but I agree, it wouldn't be as fun to watch. BUT on a more serious note, those things are developing huge forces that could seriously injure or kill someone it they fail. As you are trying to balance that lamp, the risk/fun factor in those video are making my butt cheek clench. 😅
What about automotive suspension springs? And/or a counterweight, as others have suggested. Also, you should put some sort of big beefy locking pin mechanism on it so it doesn't crash down if the springs fail.
Alec I think what you need to roll those cones is a slip roller. I also think you need to visit Colin Furze. I ALSO think Colin has a slip roller. Need I say much else?
And on another note, would you consider shocks from a car instead of springs? Not sure if it would work but seems safer
Should've kept looking around for springs. Your truck has coil over shocks that would work great. plus included dampers..
I feel like you needed a bit of Furze in this episode and his nice new workshop.
Finding a spring that suites your needs is easier than you think. Look at automotive springs. You can find some long travel springs that are used in off-road applications. You shouldnt have to use a garage door spring that isnt meant to do what you are asking of it.
Your base not only needs to be broad and stiff, it needs to be heavy so it doesn't just tip over from the leverage if the arm is extended far to one side. Otherwise the whole lamp will just tip over. I'd say the cheapest and simplest solution would be to use concrete. Make a stiffened sheet metal form for the base, and fill it with concrete. It might still not be heavy enough, but at least it will be easier and cheaper than using solid steel.
Alec you can use your press and add wheels that adjust to your needs
i have like a truck bed door spring or smth that would be the exact thing u need. they are big tension springs that use like 6-8mm thick spring wire and they are not as bulky as what u are trying. I feel like 1 or 2 of those on each side would do the trick
I thought you were going to try and take one of the springs off your garage door and was terrified.
Those things are under a ton of twisted force. My dad almost broke his ribs when he was trying to work on one and the bar he was using to turn in broke loose. Luckily the bar just put a hole in the wall
I can see the light at the end of the tunnel. Keep having fun. By the way - how is the house remolding coming - haven't seen any video of that lately. Stay safe.
these two just have to much fun
The hard cutoff at the end is such a strong editing move
Hydrolics seem like they’d be the move. You could even put fake giant spring around them just for the looks
Wouldn't be easy at all but maybe hydraulic rams instead of springs? Would defo be cool to have a hydraulic lamp
You could nest the small springs inside the large spring.
You could test some heat treatment on your springs. Maybe get more strength out of them
"Gently does it..." *Bangs multiple times with a mini-sledge*
Autumn.. Not the time to “Fall” for a “Spring” joke!
Haha 😂
FML is this what it’s come to 😒😔
Dear Alec,
Please take this in good faith, I am writing this out of an honest concern for your safety. I know you have put a lot of love and heart into this project, but there are times that blind passion will get you killed, and this is one you have stumbled into. I've long watched your work and I love the passion you put into your projects. You are truly a model for a whole generation of makers, DIYers, and people learning the joy of building something with their own hands. So please, realize that this dire warning comes from a place of love and kindness, and out of a genuine concern for your safety.
This whole project is a death trap. It seems you just blindly scaled up the dimensions of a table lamp, but objects don't scale like that. It's the whole square-cube law principle. When you double all the dimensions of an object, you increase its mass by a factor of 8. Meanwhile, sectional strength is very roughly proportional to surface area. You can't just scale up an object while keeping the proportions the same. If you want a lamp twice as tall, the members will need to be more than twice as thick. It's the reason elephants and insects have completely different body plans. It's the reason tiny animals can routinely lift many times their own body weight or leap many times their own height. Things don't scale linearly. A lamp this big should end up looking more like a cherry picker/aerial work platform than just a giant desk lamp.
When seeing the earlier videos of this project, I assumed you had done all the proper structural calculations, and you just left those out for the sake of the video. But if you had done those calculations, you should know in advance exactly what strength of spring you should need. It seems clear that you just blindly scaled up the original lamp, without any consideration of the actual forces, moments, and stresses involved.
What you are building here is not a cool sword or some giant novelty Thor's hammer. You are building a structure. And you are building at a scale that you have no experience with and clearly lack the expertise to do.
Looking at that frame-spring connection was particularly concerning. You should have started with building the lamp shade, figured out its weight, and then done all the structural calculations from that. What's that bolt rated for in shear? How much force do those springs need to be able to hold on the final lamp? What's the shear strength of the square tube the bolt is passing through, in both gross shear area, yielding, and net section fracture? On a bolt that long, moment is a concern. How about fatigue? All of these things and many others should have been figured out before you even picked up a torch. When you're playing at this scale, you need to do this, unless you want to see you or someone you care deeply for die horribly. You should have done the calculations and then applied a big factor of safety, maybe a factor of 5, due to all the uncertainties involved. But again, I do warn you, do not expect a safe design to look like a big desk lamp, its relative proportions will look more like a cherry picker, bucket truck, man lift, all those types of devices used to lift workers safely to tall heights.
I'm a structural engineer. I have a bachelors and masters in the field, have worked professionally in it, and have taught many courses in structural analysis and steel design, and I'm currently in the final year pursuing a doctoral degree in the field. I wouldn't walk into the same building as this death trap you''re cobbling together. You are in way over your head, and you are gambling with your life. The energy in springs that large is terrifying. If one of those snaps or tears out one of its hanging bolts while you are near it, it will cut through you like a stone through air. If something fails and that heavy steel frame drops on you, you are done. It will crush your head like a watermelon and smash your bones to jello. You are gambling with the lives of yourself, Jamie, and any camera operators or anyone else present but not in front of the camera.
There's a reason buildings are designed by engineers, and that we don't just drop a pile of steel off on site, unleash some welders with an unlimited supply of coffee, and say, "right on boys, go build us a structure!" The calcs are all done and considered well in advance. Plans are signed and stamped by engineers who have degrees in the field, years of experience, and hold a professional engineer's license. That's not to say welding and fabricating aren't skills of their own, they absolutely are. Even just an apprentice welder with a month of experience can probably weld circles around most people with graduate degrees in structural engineering. Again, I'm nearing completion of a PhD, but your fabrication skills, even from back when you put out your first video, likely put my present ones to shame. But when you reach a certain scale, you leave the realm of fabrication and enter the realm of structural analysis and connection design. It's hard to say where that line is exactly, but this project has certainly crossed it.
Alec, if you see this, for your sake, the sake of anyone involved, and for the sake of the families and loved ones of yourself or any of your crew, I urge you to abandon this project immediately. You need to stop, go back to square one, and rethink this whole thing before someone ends up dead or maimed for life. You are playing with forces you clearly do not understand. Cobbling things together is fine at a certain scale, but when you start working on sufficiently large structures, you need to apply the actual principles and mathematics of structural engineering. And the fact that you don't have any idea what spring you need proves beyond a doubt that you have not done these calculations.
You could easily lose a limb or your life, or you easily kill someone very close to you with this project. End this before a disaster happens. Unless you want to be dead or doing your future fabrication with one arm or in a wheel chair, I suggest you stop this immediately. Or, if you simply must go on, make sure you have some really good first aid on site. Think tourniquets and the types of kits used to stabilize the wounds from semi-automatic rifles. If you simply must continue with this, at least make sure you have enough medical equipment on site that you or Jamie won't just bleed out and die on the floor before the ambulance arrives. And make sure you have an up to date will and funeral arrangements planned.
Again, I don't say this to fear-monger or to derail a project you clearly are having a lot of fun with. I've enjoyed your videos on this, catastrophically unsafe as they may be. Your joy and passion are infectious. So it is not lightly that I give you this dire warning. I am not personally involved in your project, so I have no skin in this game. If it fails and kills someone, it will not be may name on the liability lawsuit. But still, the most sacred duty of the engineering profession, before everything else, is to protect the health, safety, and welfare of the public. This is found at the top of every engineering professional code of ethics.
And while I personally have no connection to your project, I do feel I have the ethical duty to throw up a red flag and at least provide a warning when I see something that, within my professional experience, is a disaster waiting to happen. This message is that warning. If I hadn't written this, and something did happen to you, I would never be able to forgive myself for not at least doing this. As much as anything, this warning is so I can sleep at night if I later hear something has happened to you. With this warning, I have done my duty, and my conscience is clean. From here on out, this is on you. You have been warned.
If you do want to continue this project properly, I urge you to get in contact with a licensed structural engineer in your area. Get them to run the proper calculations and prepare a set of proper drawings. And they'll be able to tell you exactly what size springs you need for the project. I would offer to help with this myself, but I'm not licensed where you are, and my own studies right now do not allow the necessary time.
Please again think about all the people you know and care about. Think of what they will experience if you are killed in this project. Think of yourself. Think of how your life will be forever affected if you lose a limb or are paralyzed from a failure of this thing. Think of your audience, and the kind of example you are setting for the thousands and thousands of young minds who are getting into making and building from watching your videos. Know again that I give this warning from a place of love, and I truly do wish the best for you and all those on your team.
Thank You,
Sincerely,
Tanya J. Laird
Replying to this comment with hopes of boosting it… I really do believe that Alec ant Jamie need to take a step back and reevaluate this project. This is not worth the very real risk to both of their lives!
Colin Furz has a great trick for rolling cones.
Hey Alec! Colin Furze has a great video on how to do cones in metal and stuff. Maybe that'll help?
When you started cutting that massive spring I was like "how the hell is some random guy gonna make this into the correct shape, isn't that sprint steel?" then I remembers you're a god damn smith :x
Something I just realized is this type of contraption is right up Colin Furze's alley. Also, Alec has wanted to collab with Colin forever and yet this is a solo project LMAO.
In today's episode, Alec discovers maths and science!
Dock leveler springs would also work.
where is that Colin guy when you need him? 😁
Who needs a lamp like this? Noone! Who wants a lamp like this? EVERYONE!!!!!!!!!!!!!!!!!!!!!!!!!
One could just apply maths. Not like super accurate one, but:
- assume homogenous weight distribution over the arm
- center of mass therefore in the middle of the arm
- length of the lever (half the arms length)*weight of the arm must equal force of the spring in extended state*its lever
would have brought you at least in the ballpark :D
The coiled springs (And I don't believe it would work mind you) could be inserted in another problem would be figuring out how to mount them.
Counterweight to reduce the needed forces please... that spring scares me the hell out
square cubed law sure makes making things larger more difficult
Colin Furze can probably help out! He does steel cones all the time with his roller.
I was legit thinking of those GIGANTIC Springs from Cars or motorcycles. It could be something worth thinking about 😅
Buutttt, Alec wrecked those Springs a little while back 🤣
That would be cool if you got the chance to collaborate with Colin Furze on something like this.
Alec why not just weld/reinforce a counterweight on the end with springs?
The lamp shade and bulb fitting acts as a bit of a counter weight, when it's folded you can see allot of the shade etc is past the pivot point and sits over the springs
Yep exactly
Best way to end a video ever:
"And like normal, I don't know how to do that."
And... scene. 😂
You need an adjustable friction at the hinge.
Have you considered car/suv/truck suspension springs?
Those are compression springs, he needs extention springs.
Wouldn’t making the spring end of the arms longer give the arms better leverage therefore making it require less spring to lift it?
Hey, Alec colinfurze has a workshop hack tutorial on cones and other workshop building tips
You should use hydroforming for that lampshade steel :D
Im sure its already been said but if you use a counter weight , like lead, you could use smaller springs
Check out some snow plow springs
I’d love to see you get Colin Furze to help you with this project.. Seems like something crazy he’d make.. And I believe he’d love the idea..
Jamie is going to have to be forging a coffin at this rate of the spring arms race.
Those springs are not meant to be stretched, but twisted
So…. Three small springs inside of a large on each side? Compact and easy to tune. Idk haven’t finished the video yet so you could’ve done it.
I was expecting you guys to use a 1/2" of plate steel for the base.
Next episode, alec sources giant light bulb from the local lighthouse supply co!
Look at cultivator trip springs, dunno what youd call them there but it was painful watching when there is an obvious and readily available solution at an ag implement dealer.
You should see if you can use one of Colin Furzes big slip rollers.