This is the most artistic of all the videos yet. I can't believe how creative you are, how impressive your engineering and problem solving skills are and how intelligent you must be to breeze through most of this as if you've done it for years. You've also got a fabulous sense of humour and an incredibly calm demeanour. What a privilege to watch you learn/work and thanks for the insight it's given all of us newbies! Bravo!
+AvaKing27 Wow! Your words are too kind, really. I'm a newbie too! Come to think of it, being a newbie is a great thing; it means you're trying new things. I want to be eternal newbie!
I've enjoyed watching both your craftsmanship and video editing skills develop over the course of this series you're putting together. I'm always looking forward to the next chapter. Pithy Bikes rocks.
HUGE respect to you man, I've watched every single video you've made so far, you're a really skilled guy. I'm currently in an engineering apprenticeship and it's great to watch someone who really knows what they're doing, gives me more confidence in what I'm leaning right now. I think the way you've solved the problems you've come across is really unique too, you seem so chilled and respectable, I really would love to come and visit your workshop mate and just sit there while you do your thing, I'd feel a sense of pride just being there. You really know your stuff, and I think I can speak for everyone when I say even when you've finished your first bike build please DO NOT stop posting your engineering adventures on RUclips, I'd love to see you make a BMX next too! That would be a good simple project with different geometries to what you've done here and I for one would buy one from you in a heartbeat for GOOD money knowing you'd done it in your garage with nothing but your bare hands and a couple of small machines. Huge respect for you mate, and if you were based in the UK I'd be asking you for an invite to come and see your work in the flesh, I really would. Your fan, Olly.
+olly T Thanks for the kinds words man! You are welcome to drop in if you're ever in the States. Amazingly, my shop looks even smaller in person lol. Funny fact about my shop is that I've custom made nearly all of my tables and cabinets to be more comfortable for me. I'm 5'2. Even my chair is cut down to be a bit lower. It trully is a tiny shop! Anyway, good luck with your apprenticeship. Remember to have fun and you'll do great. -Steve
+Pithy Bikes Hi mate, thanks for the speedy reply! I hadn't checked until now as I didn't think I'd of received one from you yet! It's great that you take the time to modify and change things to make it spot on for yourself, Steve. I could learn a few things from you I'm sure, you seem so calm and collected in your clips and I'm sure that's how you approach your daily life too. Thanks for the offer matey! I'm sure I won't be in the US anytime soon though as it's just so expensive to get over there and stay, but the offer is very valuable to me :) Thanks for wishing me luck mate, means a lot from you. All the best, ans happy building, Olly.
Hi, So happy to see you finally getting there, it must be a good feeling to build your first frame, your welds have come a long way also, when I found your channel I thought meh, but now they lookin sweet ! keep us posted, great music and edit work was on point, thx. Hendrik
+hendrikhanso Thanks Hendrik! I really only showed the good looking welds ;) I still have a long way to go and so much more practice ahead to get to a point where I'm not nervous and can confidently lay down a nice weld. Glad you like the music too! Sometimes its not for everyone. But I often go with electronic music because the artists are so free spirited and don't mind the use of their music so long as they are credited. I really like this about the electronic community. They really are putting their stuff out there for us to enjoy and share. Sorry about the tangent!
I've watched all this series in the past two days. It is very informative and interesting to watch, you explain things well and provide plenty of good shots to follow along with. Just so you know this video and the next two in the series aren't in your youtube playlist. I got really worried that youd stopped in october!
The video , the jig , the welding , the frame, the music its all genius . You need to protect your skin from the UV ,, I know ya know that ,, but down the road you might wish you had if you continue to weld in comfort . Just a light weight black cotton shirt would make a big difference . Beautiful parts and outcome .
Craftsmanship at its best.. really loved your video, Please help me how to learn welding techniques , What is the component you used during welding of Bottom bracket and head tube..please let me know..
Real nice body of work you have here! inspiring trajectory long way and noticeable evolution, following from Colombia, land of great cyclists like Nairo Quintana. you should come over an give us a workshop!
Hi, I watched all your vids, and already learnt a lot of things, thanks for that ! Afterbrass brazing my first frame, i did not check that everything wa in the same plan.Once you tackled everything, you did not check the alignment on a measuring plate ? Because heat involve a lot of distorsion (even if heat from TIG is very focused on one point, the welding point is way above brazing with silver or brass). TO give you an idea, I braze my BB with ST on my JIG (so with a nice aligment), once the fram was finished i had more than 5mm differenceat the top of the ST. Maybe you controled everything but did not showed it on video
+vibram500 Honestly, I did not weld in a way to control the distortion. I only really tried to keep the heat down to prevent it. I don't have a plate and I really do need one! I've been exploring my options for this and I'm still not sure what to get/do. Once I do get something I plan to cold set the frame. Lets hope it's not too far off to make things difficult.
I was exactly in the same position as you and for my second frame, I had a lot of things to buy but definitely, the most important one is a plate (I just found it :D). in theory, you should tackle, then control, then weld, then control. Well, you will see at the end where you are :)
+tom thompson I never brazed but it's something I'll try some day. There are many pro builders who braze and make amazing works of art. I think brazed frames will be around forever because they're so beautiful.
i thought braze was a stronger , yet more flexible joint , and less trouble with the haz due to the lower temperatures , and of course no undercutting and crack propagation issues.
My friend, have a question, the re tubes aré cromoly 4130, tubes tange cromoly, or reynolds 520, or columbus? And the amos and pulse that you welding, congratulations for you job.
When I tig weld stainless I really love the colors that I get in the steel; but I don't know how to protect those colors from being worn off or washed off. I tried spraying it with clear lacquer; but after 3 days I noticed that my colors were gone, except for gold and silver. Any wisdom that you could share? Thanks
I don't have any wisdom, I never weld with stainless. Sorry! Maybe you could try using a smaller cup? This would expose more metal to air while its still hot. That would increase the coloring. Or maybe it would change color too much. Crazy idea, sorry. :)
Men, congratulations for this video and for your work, this is absolutely nice to see a welder like you, everything you do is good, you have skills ! (little question for the piece you put inside the tube who can inert too, how did you find this ?)
+Роман Романюк Hi, the holding arm is a video monitor arm that I had and was not using. I modified it to better support the weight of the frame (which is lighter than a computer monitor). It works really well.
venting out moisture after the frame is complete - its good to allow air to get inside. And yes also partly for welding process. But also to lighten things up a little too although weight loss is negligible.
+Alistair Spence Thanks Alistair! I was not foot pulsing. I ended up settling on some machine pulse settings that I like. This after a full week of practicing on about 20 T junctions. Even when I started the frame I still wasn't decided on a method. I was machine pulsing but was using lay rod at first. Then on that DT to BB weld (the one that looks good) I switched to dipping on machine pulse. I'll put up a video at some point to show the settings I'm using. I'm really glad I tried and exhausted multiple methods. Because now that I'm settled I don't feel like I'm missing out on another method that would better suit my weld style.
Yep, this is how it goes, as you iteratively home in on what works for YOU. A video on the setup that you finally settled on would be interesting for sure.
+Bush Imports They're amazing. They prevent oxidation on the insides of the tubes and for thin wall tubing, I think it makes a difference. It also reduces distortion. totally worth it imo. Thanks for watching.
+zejtroj .035 ER70S2 rod. And you can get the spec on tubes here - www.henryjames.com/true-temper-frame-kit-classic-road-s.html I used a thicker wall ST and HT. ST is about .9mm on butted end.
Excellent work. Looks great! Gosh, you're close to finished! Do you have finishing tools like reamers and facers? What's the plan, there? In the shot at the end of your video, I was reminded of your vertical bandsaw. It's time for me to graduate from my hacksaw. What bandsaw do you have, and how well do you like it? Most advice I've seen is that a vertical woodcutting bandsaw (which is all you can find in inexpensive bench-mounted vertical bandsaws; the metal-working ones are much more expensive), with its high FPM speeds, can work OK for cutting aluminum, but isn't really capable of cutting steel. What's your take on this? I know you've cut bolts and such using your bandsaw. Any tips or comments about usage on steel? Is it just a matter of fine TPI blades and careful feeds? Or do you have one of the more expensive/powerful/high-horsepower models?
+Benjamin Sherrill Hi! It's funny you should ask about the bandsaw. I just shot video about it and will post it next week. My saw is a Chicago Electric band saw, the cheapest from Amazon. It was under $200. And its still going strong. Works great for steel. Largest cut for steel was 3/16 wall tubing. But it will for sure cut thicker steel. I don't worry about feeds. I just add pressure and if the saw sounds like its struggling I ease off. It's really the blade you want to take care of so you don't need to replace them too often. Adding cutting fluid and cutting at lower rpm will prolong the life of your blade.
+Pithy Bikes Ahh, I see. Looks like a portable bandsaw attached to a table? Seems like a good way to go. I look forward to your video. The finishing tools are eeeeeexpensive, but a good investment. I can attest to the quality of the Park ones (I performed frame finishing for a framebuilder, reaming/facing/chasing about ~50 frames), but perhaps there's some other options.
@@patalinghugjosephmarkkent6082 The tube will oxidize from the inside. It will not cause problems on the outside though, welding is virtually the same. Purging the tube from the inside prevents oxidation inside the tube. But many frame builders do not purge 4130 steel. It's not absolutely necessary, I consider it a "premium" weld.
@@PithyBikes Thank you so much for that information sir. I was actually planning on building my own enduro hardtail frame in a cheap way someday. Since i dont have the money and experience as of now, ill just get all the information needed and preparations for my future plan.
Did I read somewhere your in the Calif. Bay area? I thought I read that you or maybe you said it. Anyways great videos. I am In the east bay if you are in the bay area and can help you with your tig welding if needed.
That is nylon hose used to fill the tubes with inert gas, in this case argon. The argon shields the inside of the tube from oxygen/plain old air. When steel is heated to melting point, air/oxygen causes oxidation. Argon prevents that. Hope that answers your question. Cheers!
This will be in a video near the end of my current bicycle build. When it's almost finished I'll need to braze those on. Here's the build I'm currently working on. ruclips.net/p/PLaz6WjKNr9tXbZu_9z-bP7Si9GTKGoa37
+Jesús Fuentes it's to shield the inside of the tube. (to purge the air so it doesn't oxidize from inside) Purging is not totally necessary with 4130 steel tubing. But for thin wall tubing I believe it adds to the life of the tubes.
I don't because I need more experience. And lately my day job has been my main focus. But maybe some day I will.. Maybe when robots are running the show, people will buy bikes from me because they want something made by a human.
I got the idea from Duncan Cycles Flickr. He made his own set from brass which is a better material for heatsinks. Heatsinks have been a standard with professional builders. I don't know who made the first for frame building.
Well done.. craftsmanship and videography are top notch. Thanks for taking the time to create, edit and share with everyone
+Troye Stonich It really is my pleasure! Thanks so much for watching. Its so awesome to make this stuff such a great audience!
This is the most artistic of all the videos yet. I can't believe how creative you are, how impressive your engineering and problem solving skills are and how intelligent you must be to breeze through most of this as if you've done it for years. You've also got a fabulous sense of humour and an incredibly calm demeanour. What a privilege to watch you learn/work and thanks for the insight it's given all of us newbies!
Bravo!
+AvaKing27 Wow! Your words are too kind, really. I'm a newbie too! Come to think of it, being a newbie is a great thing; it means you're trying new things. I want to be eternal newbie!
Well said! The craftsmanship of the videos is as impressive as your engineering ingenuity.
Your videos are amazing! Thank you for sharing your passion, it definitely shows in your video production.
+Michael Henriksen thanks for the kind words!
This video is so nice! This is the paradise for welder.
Out with the old in with the new! You just topped my list, nice work.
+Matthew Prestine Sweet. It's all down hill from here. Hahahha ;)
One of my favorite videos that you have done so far. I have mad tool envy. Welds look great.
+Andrew T Thanks for the kinds words and thanks for tuning in!
I've enjoyed watching both your craftsmanship and video editing skills develop over the course of this series you're putting together. I'm always looking forward to the next chapter. Pithy Bikes rocks.
+Aaron Maughan Hahah thanks man!
So methodical, clean and precise!!! Wish mine turned out like that!!! Keep up the great work! Thanks for sharing! Cheers!
+TheHammertownhead I practiced A LOT @_@ Haha thanks for watching!
HUGE respect to you man, I've watched every single video you've made so far, you're a really skilled guy. I'm currently in an engineering apprenticeship and it's great to watch someone who really knows what they're doing, gives me more confidence in what I'm leaning right now.
I think the way you've solved the problems you've come across is really unique too, you seem so chilled and respectable, I really would love to come and visit your workshop mate and just sit there while you do your thing, I'd feel a sense of pride just being there.
You really know your stuff, and I think I can speak for everyone when I say even when you've finished your first bike build please DO NOT stop posting your engineering adventures on RUclips, I'd love to see you make a BMX next too! That would be a good simple project with different geometries to what you've done here and I for one would buy one from you in a heartbeat for GOOD money knowing you'd done it in your garage with nothing but your bare hands and a couple of small machines.
Huge respect for you mate, and if you were based in the UK I'd be asking you for an invite to come and see your work in the flesh, I really would.
Your fan, Olly.
+olly T Thanks for the kinds words man! You are welcome to drop in if you're ever in the States. Amazingly, my shop looks even smaller in person lol. Funny fact about my shop is that I've custom made nearly all of my tables and cabinets to be more comfortable for me. I'm 5'2. Even my chair is cut down to be a bit lower. It trully is a tiny shop! Anyway, good luck with your apprenticeship. Remember to have fun and you'll do great. -Steve
+Pithy Bikes
Hi mate, thanks for the speedy reply! I hadn't checked until now as I didn't think I'd of received one from you yet!
It's great that you take the time to modify and change things to make it spot on for yourself, Steve. I could learn a few things from you I'm sure, you seem so calm and collected in your clips and I'm sure that's how you approach your daily life too.
Thanks for the offer matey! I'm sure I won't be in the US anytime soon though as it's just so expensive to get over there and stay, but the offer is very valuable to me :)
Thanks for wishing me luck mate, means a lot from you.
All the best, ans happy building, Olly.
That weld is better than other expensive frame i've seen. Great Job Steve!!
+Russ Rodriguez Thanks!! Still the practice never ends :)
Rad, so good to watch. Camera work is so crispy.
+Jason Wyatt Thanks so much for watching!
Wow, you are doing an amazing job. Your welding is looking top notch. Thanks for sharing
+Shawn Lund Thanks! I miss welding and need to get back to it. Always great to read comments from you guys. :)
excellent craftsmanship love this
+Santhosh .p Thanks!
Well done, you are a proper artist...
+Eric Balcon Ahw shucks! :)
Really lovely. Superb craftsmanship and editing. Many thanks!
+TheImmovableMovers Thanks so much!
fantastic video and excellent quality work. Thank you for sharing it with us!
+Phil Hodgson Thanks so much for the kind words!
You should be very proud! Your welds look great!
+Christopher Beasley Thanks for the kind words :)
Animo de verdad, un trabajo increíble, sigue así!!!!!!!
+Placido carro vera Gracias por las palabras de las clases!
Awesome...just awesome, all around
+eddie Towers Thanks Eddie!
It's been great following you on this journey! Really like your video style, with this one in particular topping it off!
+Piers Riley
Good company in a journey makes the way seem shorter. - Izaak Walton :)
Amazing video. 👌
"Merry Christmas"
love your videos. fun seeing the welds come out so nice, keep it up.
+Elliott Austin Thanks man, I showed the good ones!
Hi, So happy to see you finally getting there, it must be a good feeling to build your first frame, your welds have come a long way also, when I found your channel I thought meh, but now they lookin sweet !
keep us posted, great music and edit work was on point, thx.
Hendrik
+hendrikhanso Thanks Hendrik! I really only showed the good looking welds ;) I still have a long way to go and so much more practice ahead to get to a point where I'm not nervous and can confidently lay down a nice weld. Glad you like the music too! Sometimes its not for everyone. But I often go with electronic music because the artists are so free spirited and don't mind the use of their music so long as they are credited. I really like this about the electronic community. They really are putting their stuff out there for us to enjoy and share. Sorry about the tangent!
excellent neat welding here a quality job
Gettin good and nice shop you got!
+krssnoop Thanks for the kind words. :)
Dude bro, awesome work! Very Clean!
+Lyle Hjort Thanks man!
Thank you for your videos!
Looking really nice!!
+Joey Mesa Thanks so much Joey!
You do great work.
+Crivo152 Thanks for the kind words :)
Love the set up
Thanks man!
Really nice work!
+David Kertesz TY Dave!
I've watched all this series in the past two days. It is very informative and interesting to watch, you explain things well and provide plenty of good shots to follow along with. Just so you know this video and the next two in the series aren't in your youtube playlist. I got really worried that youd stopped in october!
+Elliot Halpenny Thanks man! I just updated the playlist.
Wow! Next step. Congrats! Great to see you at work, as always :-)
+mslonik Yes, we're getting closer to the finish line. Now the hard stuff begins!!
The video , the jig , the welding , the frame, the music its all genius . You need to protect your skin from the UV ,, I know ya know that ,, but down the road you might wish you had if you continue to weld in comfort . Just a light weight black cotton shirt would make a big difference . Beautiful parts and outcome .
really nice vids dude... gj on this production.
Thanks!
Craftsmanship at its best.. really loved your video, Please help me how to learn welding techniques , What is the component you used during welding of Bottom bracket and head tube..please let me know..
Awesome shots! Approximately how many hours of welding did it take?
Real nice body of work you have here! inspiring trajectory long way and noticeable evolution, following from Colombia, land of great cyclists like Nairo Quintana. you should come over an give us a workshop!
+joe lopez Haha thanks! I'd love to visit some time. :)
beatiful welds *_*
+gigambo263 Haha I didn't really show the ugly one ;) But thanks!
dope slowmo shot
+Michael Rivera word
Do bike makers usually use metal tubing with the same wall thickness or do some bikes have thicker/thinner walls and larger gauge diameters?
Your videos are awesome, man. Hope you don't mind, I posted this one to reddit.
+Raymond Klose I don't mind at all. Share away!! I encourage it :D Let's spread the love that is frame building. Thanks for watching!
Does the head tube on this bike you’re making for a threadless fork and headsets? What are you putting in the head tube?
Hi,
I watched all your vids, and already learnt a lot of things, thanks for that !
Afterbrass brazing my first frame, i did not check that everything wa in the same plan.Once you tackled everything, you did not check the alignment on a measuring plate ?
Because heat involve a lot of distorsion (even if heat from TIG is very focused on one point, the welding point is way above brazing with silver or brass).
TO give you an idea, I braze my BB with ST on my JIG (so with a nice aligment), once the fram was finished i had more than 5mm differenceat the top of the ST.
Maybe you controled everything but did not showed it on video
+vibram500 Honestly, I did not weld in a way to control the distortion. I only really tried to keep the heat down to prevent it. I don't have a plate and I really do need one! I've been exploring my options for this and I'm still not sure what to get/do. Once I do get something I plan to cold set the frame. Lets hope it's not too far off to make things difficult.
I was exactly in the same position as you and for my second frame, I had a lot of things to buy but definitely, the most important one is a plate (I just found it :D).
in theory, you should tackle, then control, then weld, then control.
Well, you will see at the end where you are :)
very nice indeed ,,,, are the days of brazing frames long gone now then ?
+tom thompson I never brazed but it's something I'll try some day. There are many pro builders who braze and make amazing works of art. I think brazed frames will be around forever because they're so beautiful.
i thought braze was a stronger , yet more flexible joint , and less trouble with the haz due to the lower temperatures , and of course no undercutting and crack propagation issues.
Amazing!
+Danny Dodge Thanks!
I like it very much that is why I çan spend my time for
My friend, have a question, the re tubes aré cromoly 4130, tubes tange cromoly, or reynolds 520, or columbus? And the amos and pulse that you welding, congratulations for you job.
I was thinking to make myself a frame. What kind of steel did you used? Is it a particular alloy ?
When I tig weld stainless I really love the colors that I get in the steel; but I don't know how to protect those colors from being worn off or washed off. I tried spraying it with clear lacquer; but after 3 days I noticed that my colors were gone, except for gold and silver. Any wisdom that you could share? Thanks
I don't have any wisdom, I never weld with stainless. Sorry! Maybe you could try using a smaller cup? This would expose more metal to air while its still hot. That would increase the coloring. Or maybe it would change color too much. Crazy idea, sorry. :)
you should always remove all those "colours" after welding cause they are the first point of future corrosion !
Men, congratulations for this video and for your work, this is absolutely nice to see a welder like you, everything you do is good, you have skills ! (little question for the piece you put inside the tube who can inert too, how did you find this ?)
Booyah!!! Nice
+Matt Schorr Awwww yeah!
What are those tubes you put inside the frame tube? is it for cooling? and what is it called?
What's the stand that you use to hold the frame while completing the welds?
any chance you might have plans/blueprints for your frame jig?
+TheLedzeppfan Funny you should ask! I just updated my schematics. The jig is in there too. See link below. Enjoy!
p3d.in/u/PithyBikes
Nice device to hold a frame during welding. Did you made it?
How do you did joints on this "hand"?
+Роман Романюк Hi, the holding arm is a video monitor arm that I had and was not using. I modified it to better support the weight of the frame (which is lighter than a computer monitor). It works really well.
nice welds!!!
are you purging the inside to keep the penetration from bleeding into the other tubing??
+DaddyShark Marek Yes I'm purging. But with steel, it's not critical.
For what are the holes on the head tube for?, Are just for center the other tubes or it is requiered for the welding process?
venting out moisture after the frame is complete - its good to allow air to get inside. And yes also partly for welding process. But also to lighten things up a little too although weight loss is negligible.
Nicely done Steve. Couldn't tell in the video, but were you foot pulsing here?
+Alistair Spence Thanks Alistair! I was not foot pulsing. I ended up settling on some machine pulse settings that I like. This after a full week of practicing on about 20 T junctions. Even when I started the frame I still wasn't decided on a method. I was machine pulsing but was using lay rod at first. Then on that DT to BB weld (the one that looks good) I switched to dipping on machine pulse. I'll put up a video at some point to show the settings I'm using. I'm really glad I tried and exhausted multiple methods. Because now that I'm settled I don't feel like I'm missing out on another method that would better suit my weld style.
Yep, this is how it goes, as you iteratively home in on what works for YOU. A video on the setup that you finally settled on would be interesting for sure.
I really want to build my own bike frame...thanks
What amperage do I need to efficiently tig weld an alloy bike frame please?
Sweet!
How well do those purgeable heatsinks work? Nice job man.
+Bush Imports They're amazing. They prevent oxidation on the insides of the tubes and for thin wall tubing, I think it makes a difference. It also reduces distortion. totally worth it imo. Thanks for watching.
Hey! Great video man. I have some questions: what filler size do You use and how thick are those tubes (wall)?
+zejtroj .035 ER70S2 rod. And you can get the spec on tubes here - www.henryjames.com/true-temper-frame-kit-classic-road-s.html
I used a thicker wall ST and HT. ST is about .9mm on butted end.
Great, thanks for the reply :)
Excellent work. Looks great! Gosh, you're close to finished! Do you have finishing tools like reamers and facers? What's the plan, there?
In the shot at the end of your video, I was reminded of your vertical bandsaw. It's time for me to graduate from my hacksaw. What bandsaw do you have, and how well do you like it?
Most advice I've seen is that a vertical woodcutting bandsaw (which is all you can find in inexpensive bench-mounted vertical bandsaws; the metal-working ones are much more expensive), with its high FPM speeds, can work OK for cutting aluminum, but isn't really capable of cutting steel. What's your take on this? I know you've cut bolts and such using your bandsaw. Any tips or comments about usage on steel? Is it just a matter of fine TPI blades and careful feeds? Or do you have one of the more expensive/powerful/high-horsepower models?
+Benjamin Sherrill Hi! It's funny you should ask about the bandsaw. I just shot video about it and will post it next week. My saw is a Chicago Electric band saw, the cheapest from Amazon. It was under $200. And its still going strong. Works great for steel. Largest cut for steel was 3/16 wall tubing. But it will for sure cut thicker steel. I don't worry about feeds. I just add pressure and if the saw sounds like its struggling I ease off. It's really the blade you want to take care of so you don't need to replace them too often. Adding cutting fluid and cutting at lower rpm will prolong the life of your blade.
+Benjamin Sherrill Almost missed question about finishing tools. I don't own any. I'll need to get some pretty soon I reckon.
+Pithy Bikes Ahh, I see. Looks like a portable bandsaw attached to a table? Seems like a good way to go. I look forward to your video.
The finishing tools are eeeeeexpensive, but a good investment. I can attest to the quality of the Park ones (I performed frame finishing for a framebuilder, reaming/facing/chasing about ~50 frames), but perhaps there's some other options.
+Benjamin Sherrill I just purchased the Park Tool BB tap and facer. Yes pricey but glad to hear it's a good tool :)
Hi Steeve, awesome work, awesome video, awesome music (who has made it by the way). Keep going on, looking forward the next video.
+Julienlegrand Thanks!!! I have links in the video description for the music. Cheers!
what's that tube thing with the green hose for?
That's a heat sink. The tube injects argon gas inside the tube through the heat sink to shield the inside of the tube from normal air.
@@PithyBikes What happens if any ambient air gets inside the tube?
@@patalinghugjosephmarkkent6082 The tube will oxidize from the inside. It will not cause problems on the outside though, welding is virtually the same. Purging the tube from the inside prevents oxidation inside the tube. But many frame builders do not purge 4130 steel. It's not absolutely necessary, I consider it a "premium" weld.
@@PithyBikes Thank you so much for that information sir. I was actually planning on building my own enduro hardtail frame in a cheap way someday. Since i dont have the money and experience as of now, ill just get all the information needed and preparations for my future plan.
@@patalinghugjosephmarkkent6082 Stay tuned in the New Year, I'm starting a series where I design and build a budget frame jig. :)
What Tig machine are you using?
Did I read somewhere your in the Calif. Bay area? I thought I read that you or maybe you said it. Anyways great videos. I am In the east bay if you are in the bay area and can help you with your tig welding if needed.
Hey thanks! Yes I'm in the Bay Area. Thanks for the offer :)
Just love your dedication! If I may ask, how do you find time for all of this? :)
Sometimes I can't find time and it takes me a while to put out the next video :) Weekends and nights after work is when I find time.
Can u show me how to setting the welding machine for weld alumium? Thank so much. I'm from Viet Nam. Nice to know you.
+kim nguyen you should check out Jody's channel Welding Tips and Tricks. He explains this very well.
+Pithy Bikes. Thank you.
Is aluminum or steel?
What's the green pipe connected to the frame while welding
That is nylon hose used to fill the tubes with inert gas, in this case argon. The argon shields the inside of the tube from oxygen/plain old air. When steel is heated to melting point, air/oxygen causes oxidation. Argon prevents that. Hope that answers your question. Cheers!
Pithy Bikes thank you for new knowledge.
Can you show how to wield Cable stop on the bike frame ?
This will be in a video near the end of my current bicycle build. When it's almost finished I'll need to braze those on. Here's the build I'm currently working on. ruclips.net/p/PLaz6WjKNr9tXbZu_9z-bP7Si9GTKGoa37
are you planing to sell any frames?
Don't you want the purge gas to escape so it can displace all the air that's in the tube already?
+oishisakana Yes, I do. The foil isn't completely air tight it does let air escape. Also the heatsink is not air tight either so that helps too.
yeeeaaah! :-)
+Roman Abramovich :D
are this pipe chromoly?
Why you add argon into the tubes always???
+Jesús Fuentes it's to shield the inside of the tube. (to purge the air so it doesn't oxidize from inside) Purging is not totally necessary with 4130 steel tubing. But for thin wall tubing I believe it adds to the life of the tubes.
Your trade skills has more and more range.
+Britton Evans Can I quit my day job yet? hahahaha kidding. One can dream :)
No instagram?! I'll follow it in a heart beat
+Anthony Rs I'm there. Find me under "pithybikes"
Do you sell your frames you build ?
I don't because I need more experience. And lately my day job has been my main focus. But maybe some day I will.. Maybe when robots are running the show, people will buy bikes from me because they want something made by a human.
what are frame Prince
Never saw an asian man work so slow :O
Nice work !
Hahaha this made me laugh so much! :D
Pithy Bikes hahah, do you know your next Project ?
This why bike are expensive
Better to wear gloves when doing metal drilling, all those sharp metal bits can be dangerous. Speaking from my personal accident.
gloves often are not used on lathes or mills/drill due to the risk of pull in should they get caught.
1:25 toasty fingers
I need a cigarette after that.....
+Nathan Hamler ahahha thanks man!
Sir me bi tig welding karta hu kam ho to bolna jiok
E eu aqui treinando soldar com eletrodo 6013... aff..
I need a change in career
que secos te van a quedar los huevos si seguis soldando asi..
Dont watch the arc flash
good advice! ;)
don't like the music
How did you get the idea for the heatsink?
I got the idea from Duncan Cycles Flickr. He made his own set from brass which is a better material for heatsinks. Heatsinks have been a standard with professional builders. I don't know who made the first for frame building.
What s the size