Bicycle Frame Build 52 - Tig Welding Chinstays to Bottom Bracket Shell
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- čas přidán 2. 07. 2016
- I tig weld thin wall chromoly tubing chainstays to the bottom bracket shell.
Music:
Nameless Warning - Palette Swap
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SANDR - Miles High
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Carefree - Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
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#diy #bicycleframe #fixedgear #singlespeed #welding #machining #milling
I just found all these videos a couple days ago and binge watched them all. I'm working on some recumbent bikes in 1/16" mild steel square tubing at the moment, but I'm considering building myself a track bike after I get them built and have had a bit more practice with the welder. I really like the way you've included the whole process, including mistakes. It'll probably help me a ton. So, thanks. :)
You got it! Good luck with your builds. :)
TX for sharing your experience again. I realised that what makes your series of videos so nice is that you share your feelings together with your learning curve whithout hiding your errors. This gives me the courage on moments where things fail for the n'th time and I have to continue however. Tx Steve
+Bart Van Laer yes! Keep going. I've been really lucky so far that my mistakes so far have not been fixable. Fingers crossed, knock on steel!
Awesome video.TIG welding is fun!
I couldn't wait anymore to get home and relax on the bed while watching this new episode. Great music choice. I really enjoyed it.
+Diego Bianchi thanks! :D
Amazing. The most impressive youtube channel I've seen yet.
beautiful frame 👌🏽👍🏼
Watching your channel for the first time, I was directed to the channel when I searching for how to make a bike frame smaller 😁🤣 enjoying quarantine days
finally reaching the views it deserves.
A pleasure to watch him work
Your vids reek of high production values. I always enjoy watching them.
+Superdude Superdude haha! :)
I worked at a boat factory for 4 years. So i got a hair up my butt and on breaks id go tig aluminum and even anodized aluminum. So when i felt i felt like i was pretty good at it. I put my app ina better paying company. Now i make 3 times the money tigging every kind of metal. Nice vid
Seeing you succeed in your endeavors here is pleasing to me. Thanks for sharing.
+Britton Evans thanks for watching!
Weld sneak at 08:48 :D
Happy to be with you! You are doing a great job!
+August Heckmann thanks!
Getting closer! Man that tire is MASSIVE :D
+xGshikamaru it looks larger than it is because it's on a small frame. :) 2.3" tire. I think..
@@PithyBikes aaAaaaaAaaaaaaaaaaaaaaaaaAa
Absolutely inspiring video.
+Timothy Billingsley thanks!
Thank you my friend to spend time showing us how to make a frame step by step
+piero pinedo it's my pleasure!
Nice work man, one of the key skills in welding and fabrication is problem solving as you go, and you seam great at that!
+🔥Ramsey Customs - turbocobra thanks man!
I hope you get 5 million subs.
+Mekhanic1 wow man wouldn't that be something! Never gonna happen :)
One word ... Amazing, thank you for sharing
+Azad Howrami you got it.
realy love the built, fun too see the bike starting to take shape
+Axel HOLM thanks! Yeah it's starting to look like something.
Yes. 40 series. Cheers.
what's the diff between tig and jig welding bike?
You are an amazing person. Your problem solving is great and your teaching skills are also. I love the way you show your mistakes too. Keep up the good work and congrats on your 10000 subscribers.
+Pudster thanks so much for watching! Too kind.
like to watch people make stuff . A blokes shed needs to be bigger than the house ! thanks
fully agree
Nice job that man. Wish I had them skills.
Looks good man!
Looking forward to see you riding the bike :-)
+Louis Bikeman I can't wait man!
i could tell he really loves getting in to every nuck AND cranny to weld it perfect.
Can't wait to see the finished bike :)
+10 turio me too!
dig the video. a couple suggestions, when checking your alignment, make sure you check that the dropouts are aligned with the center axis of the frame as well as the vertical axis. i use a large machinist square for this purpose. also, i have a set of Park dropout tools to get the dropouts aligned with each other. when doing track ends check this with the dropout tools slammed all the way forward in the slots as well as as far back in the slots as you can. for welding i use a large #14 welding cup with a diffuser from ToxicFab that allows your tungsten to stick out much further so you can get into tight places.
+Justin Pogge that's a large cup, what cfh are you using? I may attempt my next welds with a #12.
Great video as usual!
+Amo Nantes thanks for watching!
class video and next so greetings from Germany
+Christoph Naake greetings!
hey man im a bike builder myself and i had the same problem with keyholing as you did. what really helps is to focus your arc onto the thicker piece of metal, in this case the bottom bracket, to get the puddle started and then move onto the thinner piece to complete the tack. it should help with keyholing and it will stop parts from warping as much in free moving areas. nice work though love the channel
+Trent Laing thanks for the tip! I'll give that a go.
@@PithyBikes How do you sharpen your electrodes? They could be sharper, that also helps to get a smaller more concentrated puddle, ultimately putting less heat into the frame
But hey, love your stuff. It is such a dream for me to do this some time!
That´s not bad at all what you are doing. The heat distribution on the tube looks ok, but there is much room for improvement to get to a master level. You can distinguish by the colors of the weld if it won´t stress the material in bad manner. If you can get it to a 1mm redstrip with a bit of blue you reached the master level ;). Don´t know if your chainstay flat metal stuff is a good idea cause your frame will flex offcenter, causing much stress on the flat/vertical stiffer side.
amazing job bro! can't wait to see the first ride! don't you dare painting the frame... just clearcoat it... steel is that much amazing with your welds!
Thanks! Yeah, I'm not going to paint the frame. Raw it will be. I'm doing that because this being my first real build, I want the option to weld it again easily if needed. I want to be able to see easily if anything cracks. Cheers!
proper!
What kind of cutting and drilling tools. Thank you
Hi, I need to build a frame (xxl size or 60) for a road bike (no mountain bike). Do you know where I can find or buy the construction plans? Thanks.
Hey man. Is it safe you remove the old head tube then replace replace it with a big one to fit a head set for a 1-1/8 inch fork?
Try a smaller gas lens cup on your torch with tighter spots and try a lower amperage. Looks great
+William Bonney thanks. I started using the #9 again. It works great. Thanks for the tip.
what was the Argon gas set at?
You're getting closer to the end of this project!! Have you think what's next??
+Cesar Mendoza my son needs a bike so I'm thinking of chopping him together a Longtail.
treat your self to a good auto helmet , a speedglass or the likes , and adjust the shade till it suits , you can weld all day and not need to lift the shield , i also put a light in close , it will help a lot , especially when things are all the same colour and finish
Duuuude!!!!!!! Awesome!!!
Thanks!!
Turn your amperage up about twice what you would weld your material with, then give the metal a quick blast with the foot pedal, quick easy tacks every time.
+Andy Baker thanks, I'll try that. I always get squeamish turning it up! But I know what ypu mean. If the heat ain't the the puddle won't wick into the gap.
If you haven't already, check out Jody Colliers videos. Welding Tips and Tricks.
Yeah, Jody's channel is killer. Love watching all his new videos. Pretty sure his was the very first channel I ever subscribed to.
I considered to subscribed
My initial thought for the sparking around the chainstay would have to be again, too much purge coming from bottom bracket. Unless you have the purge from your torch turned almost completely off, your probably not going to lose coverage at the torch.
Again I think you're right man :)
awesome
+oishisakana :)
Tubeing is the hardest thing to weld at least for me
Hey man, that's really great great job... Just wondering, how much if you sell that frame?? Thank you for answering this... Piss man ✌️
Harro, can i get drop out template design for fixed gear bike?
We’re can I get a jig like that
Kieth Rucker uses this same music for the intro in all his videos. Congrats on 10k subs!
+JohnnyRottenest he has great taste! Thanks!
I am wondering where you bought your equipment and your chrome-molly tubing?
Tube Henry James
Looking fantastic so far and I can't wait to see the finished product! Quick question: Are you planning to cover the welds somehow?
+Mattias E.N you mean like paint? I'll leave the frame raw. I want to see if the frame cracks anywhere. This being my first.
love your work mate, I'm new to this please tell me what purge is and why you use it?
+Ronin purge is filling the inside of the tube with argon gas. By pirging the air inside, the tube wont oxidize inside the tube while welding.
You might look into a 9f torch instead of that big old 17 you have now. I've got an AHP alphatig 200x, and it came with a 17 style torch. I bought a 9f from eBay and it went right on the cable I already had. Its significantly smaller and would help you get in those tight spots.
www.ebay.com/itm/200563801594 Here's the one I bought. Of course you'd need to buy a gas lens kit and stuff to fit the 9f.
+okieltr450 thanks for the tip. It might not look like it but I'm running a wp9.
how come you went with a flat bar on the chain stays its the only thing on your frame i dont like but the crank will hide it
thanks for the vid
+trigg99 I used The flat bar because clearance is tight. I'm still running a standard track crank. It's narrow. I like the flat bar but I have strange taste. :)
Some day I also wanted to try and build my own frame, but now... I guess it'll be best to just buy some more or less decent frame and be done with it.
+8thDay for many, if you only want the end result then off the shelf frames do the job well. Making your own is more about the middle than the end. If you ever decide to build your own, feel free to email me. Pithybikes@gmail.com I can point you in the right direction. Some day I would like to do a few videos on how to build your own cheaply. (as cheap as possible)..
is there a reason the right chain stay has the flat formed piece in there instead of the tubing all the way up to the bottom bracket? or was that just part of the design. i may have missed that in the previous videos.
+cr walker yes! It's to gain enough clearance between chain ring and tire. The standard tube with a dimple wouldn't fit. :)
Hey man, nice work!.
Can you please tell me what kind of adjustable arm do you use to fix the frame during the welding? Afterk tack weld the frame on the jig?
Thanks in advance!
It’s a modified monitor arm. But i have to admit, it doesn’t work very well.
Pithy Bikes, do you know anything similar made for that application?
@@Roi93 Yes, many builders build weld their own or buy a bicycle repair stand. www.google.com/search?q=bicycle+repair+stand&rlz=1C1GIVA_enUS759US759&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiEpO2a3cbeAhW8IDQIHbOlB1gQ_AUIFCgC&biw=1920&bih=938
Really curious, what kind of bike frame are you building? First thought it was a track bike, then saw those beefy tires and got me wondering.
+Benediect Santos good observation! It's a cross between a track bike and a fixed gear freestyle bike. I'm building it to have fun on my daily commute. I'm not a good freestyle rider by any stretch of imagination but I do enjoy simple tricks to make the ride fun. I really like the distance between pedals on track cranks so I kept track cranks. Also I'm short so my wheels are 24". I wanted decent stand over clearance for a person my height. I'm 5,2. So when I fail a trick, I can keep my nuts off the top tube.
hey Wat metal bars or rode u r using to make frame
+Nikhil Shirke I'm using 4130 chromoly tubes from henryjames. Com
Do you more around a lot making the welds to make it not move while not in the fixture?
Also, how much do you purge? When I started to purge I had some problems not having enough coverage, but turning up the amount made it impossible to weld since the gas from the inside would actually disturb welding the outside, almost like when you notice that you forgot to turn on the gas bottle ehehehe..
Yeah its a balancing act to get the purge just right. This particular frame was purged. If coverage isn't good its possible air pockets are inside the tubes. Argon is heavier than air so it settle to bottom of tube. I like to turn the frame around and up and down a few times while its purging to get all the air out. Good luck!
Nice welding! What are the holes drilled for prior to the first weld? Thanks!
Frank Leferink I think he did that to purge the Weld on the inside with Argon, because the bottom bracket is a tube so the Argon could not transfer to the chin stains.
Have a good one and sorry for my english 😂
Ride BMX thank you!
Is grinding welding seams by hand with a file worth the time?
Usually is grinding seams a method of bad producers. Steel welds can be so perfect/smooth that grinding them down is a shame.
What helmet are you using? Would love to get one that I can switch out AD to a fixed shade.
+erikdude666 I'm using a Jackson hood. Bought it with auto darkening but replaced it with fixed shade.
Thanks for the info, a lot of guys at work rock the Jackson and love it. Having a hard time dropping the 350 (Canadian) on it though. Would love to see a review on it and hear your more in depth thoughts. (If you dont have one already.)
The opening music reminded me of Keith Rucker's channel.
+lite Roadie yes someone else has said its the same tune. Kieth has good taste 😀
Really good job.
But I would have pointed the two frame tubes to avoid any frame deformation of the wheel hub axel(?)
You mean at the ends of the chainstays where they meet the hub? I agree that would reduce deformation if I had a pointed cap. Luckily the deformation was minimal. I'm still riding the frame and so far all is good! Thanks for watching. :)
Yeah exactly, btw I do like the attention to details you put on your work.
Very good!
Check out my work @ www.spah24.com if you want.
Greetings from Italy dude
Congrats on 10k dude. Are you painting or powder coating this bad boy?
+Jess Neal nope, I'm keeping it raw.
+Pithy Bikes Bad ass :) Looking forward to more updates
Another GREAT VID, Steve!! My palms were sweating watching you weld the chainstay/BB shell!! What diameter filler are you using? I have experimented with .045 and .035 diameter fillers for thin material. The smaller filler melts quicker in a small puddle, but I still find myself blowing holes from time to time.
The test fit with the wheel and the cranks and then the seat stays was AWESOME!! Can't wait to see you riding the finished product.
I also was not feeling the plate section for the right chainstay, but now I feel like that's what makes this frame totally yours. No one else is going to have a frame just like this one.
Keep up the great work. Congratulations on 10K followers!! You are igniting a nation of garage frame builders with these vids!!
+Dan Garcia hi! I'm using 035 mostly. Making holes in tubes happens to us all. I need more practice! :)
+Dan Garcia hi! I'm using 035 mostly. Making holes in tubes happens to us all. I need more practice! :)
+Dan Garcia hi! I'm using 035 mostly. Making holes in tubes happens to us all. I need more practice! :)
hell yeah its starting to look like a bike now, one question will you be making the front fork too?
+Bayron Huerta I will some day but for now I'm using an off the shelf job.
nice ...but the clearance is too less ..when the wheel spokes losen up after a period of time ...it will jam up the wheel ......but good work till now.....
I can't be totally sure, since I'm pretty new to tig welding myself, but I think you might be going a little light on the pedal when tacking? I haven't welded on tubing quite that thin, but I noticed when I've been playing with 16Ga stainless that I'm more likely to melt through when I sit for a couple seconds at low current waiting for a puddle than when I give it a ton of current and get them fused quickly.
You're right. I was going to light. A burst of heat is what's needed to draw the molten metal into the gap. Going light makes the steel shrink back rather than flow forward. Thanks for watching!
When tacking thick stuff to thin stuff, gotta hold the heat on the thick material and allow it to almost wick onto the thin stuff. Keep it up fellas!
Why do you attach the green tube? 5:20
Green tube feeds argon (shielding gas) into the tube. The welding torch expels argon at the tip so it shields the surface but it doesn't shield the other side (or inside the bicycle tube). Thanks for watching!
Heya. I stumbled across this about a week ago and am now caught up. Where did you take your machining class? I've been looking for something similar at community colleges but haven't found one yet.
I took them at The Crucible. I believe they still offer them. thecrucible.org/
They're in Oakland CA.
Awesome. Thanks and thanks for the videos. Your bike is going to be amazing.
What kind of TIG welder do you own?
+Darren Tillman it's an Everlast Power Tig 200DX. It has performed flawlessly for 2 years now.
Question please what are the tools and equipment used type. Thank you
+تجاره تجاره watch the videos, I show it.
+Pithy Bikes Build 19 Frame Jig Pt.11 Turning seat tube cone on mini lathe & 20 Frame Jig Pt.12 Bottom Bracket Fixture
nice job, I would like to make a titanium MTB frame one day I just need the cash
The cash and lots of time ;)
I forgot to say. U sure do stick ur tung out pretty far. Dont u loose alot of gas help that way.? I only stick mine out about a 1/8. Thank u
Yes it’s out further than usual. And I waste a lot of gas. 😆
@@PithyBikes no disrespect bro. U weld quit well for being new to it. I started welding when i was 15. And ill be 50 soon. Gotta love the look of a tig weld.
@@gitlittoo2161 None taken. :) I do want to get better at less stick out to conserve gas. For me it's more difficult with less stick out because it's harder to see the puddle. Practice practice practice.
Dude ..really 😳
Is your jig made of 8020?
Yes, it's made of 8020 - 40 series.
So Steve...gotta ask lol...why do you floor the pedal right before you back off?? Or is that just an artifact produced by the camera frame rate??
Yes, I've noticed this too. I generally feather off the pedal as slowly as possible to reduce cratering.
+Nathan Hamler I think it's an artifact. Although when I let off I don't back out slowly like other people. I have no excuse for that lol.
that's great to see your frame close to the end!! can you tell me the specs of the wheels? 😉
+François Herman off the top of my head, the tire is a Tioga 2.3", rim is a sun Ringle envy 24". Phil spokes, Surly fixed track hub. I had to build the wheel.
Yes it's a 24" wheel! It looks giant because my frame is small.
+Pithy Bikes thanks So much! I think it would be à Nice set up on a cruiser too! ;-)
That human that! Wright there we call Arttt Dammm How much doo they cost??, wel iT wil be expensive i gues and for a long life i imagine
Hey, that's Keith Rucker's music! lol
Hello! Can you make a video about your welding hand?
+Pavel Zhuravlev you mean the arm that's holding the frame? I have a video on that arm. Let me know if that's not what your referring to.
Yep! I meant your welding hand and i already found that video. Thanx))
Since day 1 boys, since day 1
+fuddle128260394 hahaha
Titanium or alloy frame?
4130 steel. Thanks for watching.
Put a cheater lens in. It will help SOO much.
I hear you, I want to get one really bad. Especially for narrow spots where I can't get my hood up close. I've kind of put myself on a spending freeze these days. But soon!
Good on ya! Kind of like giving birth - in a manly bike way ! Out of curiosity, how much $$ (roughly) in jigs and bike building specific tooling did you have to accumulate?
+Glen Carter I have a spreadsheet listing out all my purchases. Go to pithybikes. There's a link to the sheet from the builds section
+Glen Carter thanks for watching!
+Glen Carter pithybikes. Com
I hope you don't paint it, it would look awesome with a raw finish. I love how it's looking, keep the great work!
the cherryness factor is way off. need far more cherry.
dude, do not afraid for your arms? you should cover skin during welding
+Martin Stroffek thanks for the rec :)
sub'd
Your whole life changes when you get a self darkening mask. Unless your shop is ultra well illuminated. Never my case.
dude
Ikan
Cuando se trata de ese material en una bici ...me gusta mucho la simetría ...y esta quedo orrible....
Người VN mình nen hoc hỏi người ta công nghệ nay ne, bao giờ hoc dược ta, còn chuyện ăn hôi lộ ne, gian sảo thi hơn người ta,,
You thought the most uncomfortable sex on the ceiling?.. Nope...
first?
+Adam Hammel you are indeed. :)
Please don't weld in short sleeves.
+Jonathan Pack agreed. I sometimes forget in my haste. 😅
Cool. I'm a welding instructor, and I wish more people on youtube observed safety protocols so that my students didn't walk into class already loaded with bad habits.
You might also consider not dropping your electrode out so far and going to a smaller cup. I know that you have to drop the electrode a little lower for a fillet, but the less exposed electrode the better.