I'll Never Weld A Bike Jump Again

Рет қаралды 179,788

Жыл бұрын

Welding bike ramps is not something you want to go into half ready. Watch me in this video go through all the mistakes and errors someone could have while welding something like this.
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Hi, my name is Seth Gebel and I grew up in Catawissa, Missouri just outside of St. Louis. I'm very fortunate to have a playground of woods to build whatever I see fit in because Missouri riders don’t get much feature time. I’d love to change that! Hopefully, someday we’ll be able to push a build-along that benefits the public here in St Louis for MTB skills progression. For now, though, I build every weekend and film for you all to watch!
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Пікірлер: 159

@fire_node2416 Жыл бұрын

you were spot on with the metal contracting and shrinking, it would definitely be a better idea to get a tubing bender to make the bends than welding it because like you learned the hard way, its difficult to predict what the metal will do after being welded.

@BCpov Жыл бұрын

I LOL'd so hard at the ad break! 😂You could have the tension with a knife 😅 Otherwise, I totally felt your pain with the welding. I think we've all learnt something through your trials and tribulations 🙏

@willwallace8191 Жыл бұрын

lol upload more pwease, and come to Western Australia

@laustudie Жыл бұрын

Sooo when are you guys doing a colab?

@MtbAndKeyboards Жыл бұрын

Hey BcPov, you should visit Wales and go to our bike parks

@calilife805 Жыл бұрын

Bro I felt so bad when you said. “ I spent all that time and it’s worse” 😂 props to you for learning as you go ! Awesome video !

@DAV1D_77 Жыл бұрын

As a welder, this video was a lot of fun to watch, seeing you figure out how to go about welding up the jump. Number one thing I recommend to beginners is you can never spend too much time practicing! Amazing video 🤘Also, when you are welding, when the weld cools down, it can tend to pull the pieces together a little bit, so I like to clamp the piece as much as I can to keep it steady so it doesn't contract or deform when I finish laying the bead.

@rickywoods3101 7 ай бұрын

I clamp and then use a lot of small tack welds before the main passes

@MAYOJAMESD Жыл бұрын

Mate, did you consider a tube bender??? They aren't that expensive and I think the cost would have more than been justified in the years of your life you would have been spared losing to all that rage and frustration from having to cut and re weld that thing so many times

@danielimpett1277 Жыл бұрын

I still think the answer is going to be never again 😂

@russellzauner Жыл бұрын

Since I don't have a welder, I'll just use gussets and JB Weld metal epoxy! LOL wait that might work

@ThisIsGoogle Жыл бұрын

Consider this: The seamstress who never bothered buying a sowing machine says sowing is stupid and takes too long.

@tagzedawg Жыл бұрын

@@ThisIsGoogle *sewing

@TheRealJeffBraun Жыл бұрын

Square tube doesn't bend well, the inside radius tends to buckle. He had the right idea with the relief cuts but the thermal pull has to be accounted for, and thats a lesson every welder has learned the hard way lol.

@Sebfish Жыл бұрын

I’ve been missing these videos great to see you back !

@joebikes Жыл бұрын

Welding is an art form 🤠 I encourage you to keep at it! It takes time to learn just like hitting big features on a bike. And I am SO EXCITED for more Howler videos!

@Nicoya Жыл бұрын

As others have mentioned, this is heat shrinkage. Hot metal is physically larger than cold metal, so when the hot weld cools it contracts and pulls the two pieces together. You can use this to your advantage, though: if you have a piece that's warped, just lay a weld down on the long side and it'll pull it in line (this is usually done with an acetylene torch, but any sufficient heat source will do). Like weld here: ->( to get this: | Like you discovered, you can also tack together an entire rigid weldment, make sure everything is in place to your liking, and then finish all the weld joints. This works so long as the assembly is sufficiently braced to resist the weld shrinkage forces (though you will end up with a lot of built-up stress within the piece, and this can cause other unexpected things to happen, like a whole panel tacoing on you).

@DirtDigglerDetecting Жыл бұрын

i am 51. Dave is My Hero :)

@adriancp9957 Жыл бұрын

Exactly what you said, metal will pull to the side heat is applied. You can counter act this by tacking and welding on opposite sides. However, you can't stop it from happening. I would have tacked the second tube to the first tube, laid some base welds, cut the tacks, then lay down the remaining welds..... Or invest in a cheap tube bender.

@eamonnoski Жыл бұрын

So glad you're back, Seth. Also, I'm glad you're constantly learning new skills.

@WeekendPirate Жыл бұрын

As a welder for 99 years I can confirm. The ramp is metal

@p0nni Жыл бұрын

Both Seths uploaded the same day😄

@jeffo9599 Жыл бұрын

Yewww, the Picasso of KZfaq is back! 🤘👍

@GreenRanger090 10 ай бұрын

watching this for a 2nd time and its pretty funny as a welder i know that the most important thing to account for is the way the metal moves as you weld it, we typically tack on both sides of the joint so one tack fixes the other

@kolbya1798 Жыл бұрын

That RR Rampriders jacket tho 👀👀

@KestrelYI Жыл бұрын

Nicely done :) I think we all remember our first welding project. I dove straight in with some sheet metal repair on a car and that was tricky business due to the thin nature of the metal. Big stuff is a LOT easier to not blow through. Hang in there :) Nice to see you back.

@GreenRanger090 Жыл бұрын

man I love welding, anyone who doesn't get it wont ever get it, lol, SOOO much fun even though prep is pretty tedious, love to see you trying it.

@fivetool Жыл бұрын

Great to see some new content. Your build projects are the best on KZfaq.

@tylerm.9408 9 ай бұрын

Buy from your local bike shop! It is so important to support these local businesses as they are the ones that support our local communities and riders.

@DubstepManDudeRod Жыл бұрын

Love the trial and error aspect of this. Cool watching you learn to weld

@8eightfab520 Жыл бұрын

Fabricator here. Don't do your final welds till everything is together.

@TEGRIDY_FARMS Жыл бұрын

Nice to see you back!

@TheSimple46 Жыл бұрын

Amazing to see how you've progressed over the years! Greetings from the UK you absolute Legend!! 😁🙌

@MPHshoots Жыл бұрын

Shoutout to the certified welding crew

@NigelMarston Жыл бұрын

Your welds look as decent as any I've seen at the end. With everything you've learned, would be a shame if you didn't use those skills again. Steel frame ramps have the potential for much better durability and longevity.

@IthacaDon Жыл бұрын

Wow! On so many levels! Really enjoyed watching and glad your friend is ok.

@martyncoburn1681 Жыл бұрын

I've never seen a ramp build before and that was a lot of work and you messed up so much but glad you stuck with it thanks for sharing

@Pilotpegga Жыл бұрын

Bro came back doing smth completely different, love it

@mtb_life-ix5tl Жыл бұрын

I just built my first rock lip in my backyard trail I get a lot of inspiration from you love the videos

@therockdrummer7112 Жыл бұрын

yeahhhhhh!! I've been waiting a long time for you to come back with a video!!!

@BackyardTrailBuilds Жыл бұрын

Me too dude 😅

@noahwilson2719 Жыл бұрын

Nicely done and great job on your first welding project! Definitely a big one. I went through the experience of teaching myself to weld last year as well. Always something I wanted to learn to do and finally dove in building a small camping trailer (to take to go ride bikes!). I enjoy woodworking too, but after you figure out what starts happening to the stew as it heats and cool (and more importantly how to heat the steel in different areas) it gets easier. One advantage I like with steel is, if you muck it up, most of the time you can just cut your welds and redo it. That is a bit more challenging with wood..

@onlysendsmtb Жыл бұрын

Excellent content as always Seth. Hi Tom & Mary! Hope to see ya out on the trails this Spring/Summer/Fall! And yeah, tubing bender FTW next time, LOL!

@johnbaker4022 Жыл бұрын

You got it done dude! Wish I knew ya,I've been fab'n for about 30yrs.! We could of knocked it out in just a couple days! But ya did it and got Tommy Mac to guinea pig it for ya!👊 NICE!

@dookehd Жыл бұрын

I need to get over there to check this out sometime. Nice work lads!

@gregbeasley2657 Жыл бұрын

I could see you using the welding skills to make some cool saddles / straps to tie your woodworking into the concrete in future builds.

@NWTrailSeries Жыл бұрын

Perfect 10 video my friend!

@weedfreer Жыл бұрын

You could've used waaayyy less perpendicular cross beams used under the launch surface in favour of using a tightly woven wire mesh. That's what they've done on the ramps used at the Atherton's Dyvi bike park for the big ramp at the top of their Hardline course. Saves a bucket load of weight and materials cost.

@rottanwelding Жыл бұрын

nice going Dave.. turned out great, and we all hope Daves OK

@brandon-kg2vd Жыл бұрын

I got my polygon n9 because of you!

@HavokTheorem 10 ай бұрын

Excellent welding and you did well to deduce the source of your issues, and how to fix them. Welding lets you very easily control the degrees of freedom by adding or removing tacks and clamps. You can also make a small tack before bending or hammering a joint to stop it springing back. Also, you'd find the process a lot less dirty if you prepped your material first - grinding and wiping off the crud, even a bit of solvent wouldn't hurt - and then did all the welding in a clean environment where you didn't have to keep reaching for your mask. It's definitely difficult but MIG is one of the cleaner processes.

@izardsgarage7357 Жыл бұрын

That was a pleasant surprise to see my buddy Tom unexpectedly 😁

@Jupe367 Жыл бұрын

Seth, it was nice meeting you at the DC cultural festival.

@nicksmart2611 Жыл бұрын

This was great.

@hypasteve Жыл бұрын

Way to go dave!

@RubyByte Жыл бұрын

Great video showing your lessons learned. Thanks.

@jarrodjulian3653 Жыл бұрын

Dude your videos are awesome! The way you use the wood to make finishing touches and round everything out is so sick! BUT DUDE!! WE NEED TO SEE MORE TESTING AT THE END OF VIDEOS!! I’m dying to see your awesome stuff get ridden and then we get like 2 clips lol! Will still keep watching no matter what, awesome content, keep it up!

@mathageris1 Жыл бұрын

Great video!

@Aswdzigzagioo 11 ай бұрын

sometimes I wonder, "how in the world does btb even MAKE this kind of stuff?" his ideas are awesome 😄😄😄😄😄

@ye9542 Жыл бұрын

we use steel tables at the shop to tack the metal to first. then once everything is tacked up, we weld one side (verticals) and flip it, weld the other side and then weld the top and back side so you have even distribution of heat.

@alex.ronald.s Жыл бұрын

This is epic

@tannershort Жыл бұрын

Just wanna say, you're such a cool guy.

@dawnkangas2968 Жыл бұрын

Wow that looked tough but you figured it out nice

@stoneydouthitt7073 Жыл бұрын

9:13 … that’s when I figured out it’s a mustache and not just welding smoke.

@PerceptionFPV Жыл бұрын

Damn Frodo knows how to build some jumps 👍

@fabbike1805 Жыл бұрын

du bon travail 🤙

@manfromanotherland Жыл бұрын

For a second I thought you were gonna say “a little different but kind of the same” 😂

@cjcote3490 Жыл бұрын

Good thing you didn't try stick welding as your first time welding. A much bigger learning curve

@oeab8167 Жыл бұрын

Basically you want to clamp your work to a fab table, or something else if you don't have one, and then tack everything in place, alternating sides to spread the heat out. Basically weld one side, and then go all the way down to the other and weld the opposite side. That will spread the heat out and minimize distortion. Also, expect some, so weld it so it has a little bit of travel.

@benrozema8007 Жыл бұрын

What you experienced is weld pull. As you weld it heats up the metal sets it in its expanded state, then it cools off and contract's pulling the joint together. Once you know about it, you can use it to your advantage or correct for it. You certainly set yourself up to find out all about it with that many welds along one side of a piece of box section. Its all just experience i love working with steel and would say your feelings of steel vs wood are flopped on its head with me. Would love to see you give a metal project another go.

@jborcz1014 Жыл бұрын

Best explanation yet.

@derrickrides6530 Жыл бұрын

when you put the one on top of the other with the arch you were doing the equivalent of running on the inside or outside of a running track. Keep up the good work.

@simonb7022 6 ай бұрын

im a welder in Germany and i would recommend to cut a wood in the shape you want to have the ramp and heat the still up and bend it like the wood

@smalltownshreds6930 Жыл бұрын

this hits way to hard for me and my friend, we built are first gap jump and it was way to small. but i hucked it anyway and landed extremely front heavy so, i told him to not hit it but he did anyway and knock him out cold for 10 seconds. he's fine now but we definitely learned are lesson.

@TheGarethHowell Жыл бұрын

Nice welds dude! they're pretty clean 😉👉👉

@antonianuzzolo131 Жыл бұрын

Tom's a G

@thomasmcpherson4130 Жыл бұрын

🙏

@cooperfox9807 Жыл бұрын

I love welding myself and i'd rather it than screwing wood complete opposites

@Wannaridebikes Жыл бұрын

Ya need some gussets on it for structure. I started to learn to weld last year hard but easy if you pay attention when someone is teaching you. The gussets will help with push from hitting it. And like swaying left to right

@labradudel21 Жыл бұрын

Eyyyy 200.000 subscribers, congrats(spelling congratulationes is too hard for me) :DD

@jeremiec8014 Жыл бұрын

Yep, that's why we usually try to tack everything together before actually welding it or at least use a bunch of braces 😄

@stanleywhite4404 Жыл бұрын

Time to ride ittttt

@andreasglatthar2813 Жыл бұрын

Clamping that one bend to the other gives it a smaller radius. you can see that at 7:01. pretty much one tube thickness smaller radius

@qbird978 Жыл бұрын

Sick

@jcervelli Жыл бұрын

how did you secure the deck boards to that ramp?

@isaacescobar2489 9 ай бұрын

You always have to brace your steel so it won’t pull. Weld the sides out first so it won’t mess up the transition

@harrygrimley4352 Жыл бұрын

First 😲 wow. Way beyond my skills. Second. The balls on that guy. Full face or sparkly helmet? How about ambulance? Thanks for sharing this with us.

@thomasmcpherson4130 Жыл бұрын

the full face ended up being a good move since there was low hanging branches that hit me in the face lol

@williamdon3442 Жыл бұрын

Stack two pieces of bread poke finger through. That’s a rough idea of “spot welding “. Tacks will hold work piece in place

@nilz6432 Жыл бұрын

That was heat pulling, not the weight. You could just smack it with a big hammer until its right. Metal like that ;.)

@stevenroberts8352 Жыл бұрын

Lol, That helmet tho 👀 The hunger to weld will call back to you...

@g.w.customcreations3534 Жыл бұрын

The steel contracted more through heat than the trestles. Metal always ends up shrinking a small amount when welded. Account for this in your cut.

@krazed0451 Жыл бұрын

That's not just pressure, the heat of the welds will pull the metal to a certain extent too. Welding is fun!

@liamfanning8148 Жыл бұрын

Check what kind of steel you were using, cold rolled steel is very common but due to it being worked cold there are a lot of internal stresses that make it pull and warp when if heated. hot rolled steel has less internal stress but it will come with mill scale on it that you need to grind off. You were also right about the weight causing it to warp as you went along, but still dont underestimate what the heat will do to it. if it were my project id do exactly what you did clamping them together and welding it as is. thats definitely more than strong enough

@mydearriley Жыл бұрын

i wonder if, long into the future, there may be a problem with welds being "welded under tension." I doubt it's going to be an issue in your case, but I wonder if that is something they warn folks against in welding school.

@janis198011051 Жыл бұрын

Pole 👍🏻👍🏻

@pipelinewill Жыл бұрын

hey Im a red seal metal fabricator with 10 years of experience, your summary Metal melts, stretches and contracts at high temperature and it needs to be clamped to a good jig to stay in spec is good, but you missed something. Metal shrinks more than it grows when welding. Like your laundry. So it always pulls one way pretty predictably. This effect is way worse if there's a small gap. Because there's no solid metal in the gap it shrinks almost closed. Pretty relevant if you're dealing with filling a kerf (material removed due to cutting) Pretty much no matter how you clamp it it will shrink till the gap is closed. 2" out over that distance is nothing, should just be able to wedge an end in something strong and bend by hand it to open it up. Also spot welding is a mechanized process used to join sheet metal together by overlapping it and melting it together in a spot. It's used in factories to make automotive chassis and bodies. Tack welding is what you were doing.

@pipelinewill Жыл бұрын

Great job btw! Looks fun! Welding it with the braces already on was definitely the move!

@D-WAKE Жыл бұрын

If you would have tacked the whole together it would help constrain it. You figured that out tho. To minimize wrapping you need to move to different parts of the tube to weld to put less heat into the tube. Weld a few spots on one section then move to the other piece allows the metal to cool off before you weld again.

@D-WAKE Жыл бұрын

BTW, this is how many projects for people new to metal fabrication. It also happens to experienced people occasionally.

@mitchellc8562 Жыл бұрын

Bang the money with how the metal was distorting. It heats up and expands then cools and contracts

@perhaps88 Жыл бұрын

What bike do u have, I've been needing an upgrade for awhile now and can't find the right type.

@abeolsonmtb Жыл бұрын

Ya know what would be a crazy build a step up whale tail that you see on crankworks freestyle lines

@janeblogs324 Жыл бұрын

When everyone says "tube bender" they mean "tube roller"

@fairlyfunctional2236 Жыл бұрын

this issue is not caused by metal shrinking, contracting or stretching, etc.. so, by clamping your piece to the inside of the finished piece, you have reduced the size of the desired radius of the new piece. simply put, the outside of the curve has a bigger radius than the inside.

@logansisson5949 Жыл бұрын

Tube bender, definitely

@DuckYeah479 Жыл бұрын

Ad break song same as the theseknivesonly outro!

@psyco004 Жыл бұрын

hey dude the weld is exactly the same shit about ride biking you try but you lose , you try , you try and after you win i ride bmx and i bult some race car in belgium 😁

@SeanQuinn4 Жыл бұрын

I'm no welder, but I'd be curious if you alternated sides (inside weld, next outside weld) and worked your way down and back, if the heat soak would be even and thus not pull things? So far crazy cool too watch still 👨‍🔬

@CJONE764 Жыл бұрын

No this doesn't work. I understand what you're saying and theoretically you would think so but it doesn't work. Things still move, at different rates and different pulls and such. What will be square first time no issue, next one will have a toe in, then a toe out then square then toe out etc. Just a case of welding it up and checking it after. Source: sheetie metal worker

@SeanQuinn4 Жыл бұрын

@@CJONE764 baaaahaha that is awesome to know, thank you! What a pain in the ass 🤣

@lynxg4641 Жыл бұрын

To the welding, there's a reason welders are paid so well, it isn't easy, takes lots of skill, patience and years of practice, but damn if you didn't do a good job for a first time. To Dave and his jump and head injury - NEVER EVER, just straight up pull a helmet off like you did in this video, keep pressure on the persons head in case they have a spinal injury, because sometimes you just don't feel it - had a motorcyclist here die this way after coming over a brow into the back of a car, mad, ripped off his helmet and back was broken, severed his spinal cord and just dropped down dead.

@jesseshort8 Жыл бұрын

The horses had nothing to do with the warping. Welds shrink when they cool. Each one of the relief cuts are a potential spot for shrinking. A lot more tacks everywhere would've helped quite a bit or even hard packing the gaps with shim. Keep welding, you'll eventually figure out all the little tips and tricks.

@Pablo_M98 Жыл бұрын

Jessie is right. When you built the second curved tube, the mistake was matching the first one. You have to learn to predict the welds contracting and factor that in to the finished product. You should have built it a little bit flatter so that it ended up curving the same as the first one. Takes a lot of practice, but you’ll figure it out.

@ronchappel4812 Жыл бұрын

So wait- did he get the concussion from hitting a branch? Sorry you had a run of bad luck! From what i could see your welding looks great.I hope you give it another go in future. If you can avoid doing cutting or grinding that dramatically reduces the grime levels 🙂

@jamisonr Жыл бұрын

My man has a gold Vikkela, I'm building mine right now! First one I've seen that wasn't a review or from Pole themselves. Nice. I didn't catch the fellows name, but I'd be curious to know your thoughts on it, should you see this.

@jamisonr Жыл бұрын

My mistake, it's the Voima, but still, like to know what you think. (Voima being the ebike, Vikkela the non-ebike). Otherwise the same.

@akselbering291 9 ай бұрын

You got a slight misconception regarding why your tubes are contracting differently, welds shrink when they cool down. But when you look at a weld that was allowed to cool while in compression, to a weld that cooled while in tension and they'll be WILDLY different. Tho if I were you, seeing it mismatched by an inch to start with I'd have grabbed some big wrenches or a hammer and muscled my way to them being good enough.