How to Silver Solder - Watch Me Teach! // Paul Brodie's Shop

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#silversolder #workshop #teacher #fussyframebuilder

[@davidyendoll5903]

I like the format Paul . As a virtual student watching what ever skill , it is more likely that I would learn more looking over the shoulder of a real novice , making all the mistakes anyone would , and listening to your advise , rather than watching you , the expert , saying this is how to do it , with no mistakes to correct . Not all the time , but I bet us lot watching learnt a lot from this video . Thank you .

[@paulbrodie]

David, what you said echoes what a lot of other viewers have said. Thank you.

[@davidsnyder2000]

@David Yendoll….well said, agree👍

[@kenneely7899]

Great content, great teacher.

[@paulbrodie]

@@kenneely7899 Thanks Ken! 😉

[@quartfeira]

I totally agree!

[@chrisallen2005]

One thing I discovered a while back was using a set of magnifying lenses that I bought at the dollar store. Sometimes we don't even realize that our eyesight is not as wonderful as it was in our youth. Magnification has much improved my brazing and my welding.

[@WireWeHere]

So true for everyone but especially useful for beginners if they are to learn quickly.

[@phrodendekia]

Man I feel old being 30 just because I cant see well haha Using magnifying glasses is really useful for sure

[@paulbrodie]

Good eyesight is so very important. Thanks.

[@dennisyoung4631]

Your eyes can go in a very short period, as little as a very few years. Mine did.

[@domenicomonteleone3055]

@@paulbrodie Paul I like what I see 👀 ho from #YSW

[@davidsnyder2000]

Holy cow Paul I didn’t realize how much skill is required to silver solder. In your past videos, you make it look effortless. Didn’t realize what it takes to solder well. Thank you for taking the time to make this, and all the other videos. Much love and respect. I’m greatful for all the talents God has blessed you with🙏🙂 super cool👍

[@paulbrodie]

Thanks David. Silver solder can be quite tricky. I've had a lot of practice and I know I make it look easy. That's why I thought it would be be good to bring in Thomas, who was struggling, and use the teacher / student approach. From all the comments, a lot of viewers really enjoyed our new approach, and deemed it worthwhile.

[@Marcelsk811]

12:34 I like the honesty there.. "It's acceptable"

[@paulbrodie]

Thanks!

[@bbocjcp]

in the mid '80s, as a young engineer, I had the privilege of working in a machine shop, being tutored by machinists in their '70s. That knowledge passed on to me transcends anything I can watch on TV or the internet. It's great to see Paul transferring knowledge to the next generation

[@paulbrodie]

Thank you.

[@b-lopez394]

In my younger days, I was a combination light equipment/welder mechanic of a mine company in a remote town away from parts houses where we used to repair almost everything by welding, soldering, bracing or silver soldering if there's no available parts. We repaired parts like leaking radiators by soldering, silver soldered pinholes on hydraulic metal lines that rubbed against a metal by fillet a piece of metal over the pinhole and silver solder it or replacing a bad hydraulic line fittings by getting a good fitting and swage one of the metal line then silver soldering it. I've learned that silver soldering metals has to be properly cleaned, like you described and properly fitted (no gap). I've also learned that if the right temperature of the metal to be silver soldered is correct the silver solder just flow nicely. @14.21 is NOT a good example. The temperature of both metals that you are trying to silver solder has to be equal to have a better flow and penetration. I usually heat both metal to the correct temp then touch the silver solder rod and the flame to the work piece. It should flow if its done correctly. In my experienced it helps if you apply flux on the silver solder rod also. It can be done by heating the end of the rod and dipping it in the the flux. BTW Paul, I like the heat sink tool that you made. Thank for sharing.

[@paulbrodie]

Thanks for watching and commenting....

[@arnetrnnes5993]

Would love to see a whole Framebuilding 101 - series!

[@paulbrodie]

We did that with the Romax. Frame and fork build. Did you watch it?

[@danielboughton3624]

Great video as always. The one thing people often miss here is that the metal follows the heat and you did a great job of pointing that out. Getting that heat around the insert is key and the solder then will flow into the joint. When I learned how to gas weld we were always told to hold the torch in our palm like a pencil with our palms facing up and ideally the heel of our hand or our forearm resting on something. This gives a great deal more control and range of motion than holding it like a pistol where you are counting on limited wrist movement and movement from your arm neither of which gives you the same fine control.

[@paulbrodie]

Thanks Daniel. Yes, you are talking about the finer points of brazing or silver soldering. I didn't think Thomas was holding the solver solder in the best manner, but couldn't think of how to instruct him with a better approach.

[@neillambton4065]

Brings back memories of my days manufacturing navigational instruments, thanks for posting it Paul.

[@paulbrodie]

Thanks Neil.

[@joell439]

Thanks Paul. I appreciate all the samples of soldering shown. Very helpful to see what happens when things aren't just perfect. 👍👍😎👍👍

[@paulbrodie]

Thank you.

[@GeneSimonalle]

This was GREAT! I'd love to see you teach brazing and TIG too! I volunteer to be the guinea pig for teaching. 🤠⚒🔥🚲

[@paulbrodie]

We have (2) brazing videos, and one Tig welding video. Check them out...

[@davidwalters4014]

Life, a continual process of learning! Glad he’s going to his mentor! Great work once again! Thank you!

[@paulbrodie]

Thank you David!

[@Marty59143]

Great video as usual, the only thing I could add is tell him not to hold his breath and learning more about peripheral vision helps too. This applies to all types of welding , cutting and soldering. Filing tips especially on cutting tips makes a huge difference along with a straight orifice to make sure gases are travelling correctly.

[@paulbrodie]

Thanks Marty. Thomas was probably a little apprehensive about be filmed, on something he has struggled with. I hold my breath when I am Tig-welding very thin tubing. I know I shouldn't. I tell myself not to, and then I do it anyway... Human nature?

[@franklinmiller2772]

I like this format very much. It is good to watch you as you teach. Hope you recover from your fall quickly and continue to regain your health. The world is a better place with you in it.

[@paulbrodie]

Thanks Franklin. My leg is getting better...

[@JohnSmith-ee7gf]

Thomas is a very lucky fella to benefit from your knowledge. In turn, he becomes the guardian of your knowledge for the next generation to come. I could watch these videos all day.

[@paulbrodie]

Thanks John.

[@raynyhus2026]

I really enjoy puals teaching style. Great mix of demonstration, hands on, and verbal.

[@paulbrodie]

Thanks Ray!

[@fpoastro]

Great video. Master passing on the knowledge. One thing I have always followed with any form of brazing or soldering is the solder/braze goes where the flux and the heat goes. Clean fluxing and putting the flux only where you want the joint makes a world of difference.

[@paulbrodie]

Thanks Mark. Good comments.

[@rpmunlimited397]

Glade to see you are recovering. I too have tried to teach others to braze, solder and weld with gas. It's hard to teach experience. Grab some scrape and start practicing. When the connections in your brain connect between what your eyes are seeing, the brain understanding what they are seeing and the ability to tell your hands what to do to manipulate the process it will almost instantly become intuitive, but it's hard to explain to someone who has no idea how the process works or what to look for as to what they are seeing.

[@paulbrodie]

I try to teach in small steps so it's an incremental process. Thanks for commenting.

[@frankteneralli3149]

Yes, this is a useful format, Paul. A lot of the details of the process get fleshed out in the interchange between you and your student. I learned a lot. (You've got guts, Thomas!)

[@paulbrodie]

Thank you Frank...

[@davidwildstallionjohnson4458]

This video reminded me of my dad teaching me to braze. The patience of the teacher vs. the inexperience of the student. loved it and learned some things that I can work on.

[@paulbrodie]

Thanks for sharing!

[@michaelosmon]

When I made a bicycle I tried welding these things on with flux core. It was all I had at the time. Thanks for sharing

[@alexball5907]

I'd really recommend practicing making some simple jewellery as well. It's a great way to learn temperature control and how to flow solder. Plus you get gifts to give to friends!

[@paulbrodie]

Yes, good idea. In my spare time!...

[@dennisyoung4631]

Oh, Yeah. I’ve done some, years ago. One piece - a belt clip - gets daily use.

[@cuylerleonard3920]

I miss the soldering and brazing videos! Brings me back to the videos that originally led me to your fantastic channel 😁

[@paulbrodie]

We haven't taken away the original (2) brazing videos. They are still there, and you can visit them if you desire. Thanks for watching.

[@mnw1871]

As an on-again off-again frame builder, these fundamentals are always very helpful for review and to build from. Thanks Paul!

[@paulbrodie]

Thanks MNW. We will have another brazing video in a month or two.

[@tommontgomery2674]

Helmut Clasen, multi ISDT Canadian gold medalist, seems to use silver solder exclusively when building his vintage Hercules and Zundapps. It is a real joy to see the solder flow around a joint properly...I used to make batches of nozzles to apply liquid medicine to suture thread during manufacture. I would silver solder a tiny stainless tube of about 1/16" outside diameter and 1" length to a nozzle body I made from stainless bar stock. I drilled a socket for the tube to sit in and would use a tiny dollop of silver solder paste that had flux already mixed in. I used a micro acetylene torch that made a tiny cone with very low gas pressure. I would put the paste on one side of the tube and would heat the other side, concentrating the heat on the thicker nozzle body. The solder would flow around the tube to the side I was heating, avoiding putting the heat on the tube as much as possible since it was so tiny. I would then finish machining the other end of the nozzle and drilled up to the tubing from the other side to have a nice clean hole... I also used the paste to solder carbide onto steel bar for custom lathe tools.

[@paulbrodie]

Tom, thanks for watching and commenting.

[@JacobASwanson]

How fitting, Dad and I were JUST talking about how we need to learn more about soldering and brazing tonight, and then this video pops up on my feed! I kind of like this format, teaching someone how to do something, or do it better than they currently were doing it. It's fun watching a pro like you do stuff Paul, but if rookie tires to do what you are doing based on your tutorial, and makes rookie mistakes, we may not know where we are going wrong. If you are working with a rookie they are apt to make those mistakes and you can show how to correct them. More education that way. Keep up the great videos, I enjoy them and am learning a lot!

[@paulbrodie]

Thank you Jacob. Yes, I think this format has some merits, and Thomas has indicated he would be the 'guinea pig" again...

[@Manandmachine772]

Paul, I enjoyed this teaching format on this video. It is nice to see the student learning and we can see along with them. This helps speed the leaning curve.

[@paulbrodie]

Thanks Carl.

[@joell439]

Paul, hope you can recover quickly from your ice fall. Hang in there my friend 👍

[@paulbrodie]

Thanks Joel. I am getting better!

[@nathanchalecki4842]

Another great video. Glad you are still around mate. Have a great Christmas, from New Zealand

[@paulbrodie]

Thanks, you too!

[@michaelosmon]

This is an interesting process to try and learn on your own. Thank you for sharing your skills knowledge and experience, maybe my jewelry joints will improve with my new knowledge. I appreciate you

[@paulbrodie]

Thank you Michael :)

[@pilbeam1uk]

That was useful watching you teach someone. Thanks to Thomas for being the guinea pig

[@paulbrodie]

Glad it was helpful!

[@thebrokenbone]

excellent format! thanks guys.

[@paulbrodie]

Thanks Peter! 😉

[@fqsqbvtbh]

Super nice video, I love the format. I Hope you'll feel better soon !!!

[@paulbrodie]

Thank you.

[@stuartemmett2275]

Great to have you back on the torch Paul!! Hope that the therapy is going well.

[@paulbrodie]

Thanks Stuart..

[@Rafael-xy5ti]

This content format it´s so cool! I like when Paul give us explanations about everything involve. I like stories too!!

[@paulbrodie]

Thanks Rafael. Our next video, "The True Story of Brodie Bikes" is full of stories. You might like it. Coming out very soon.

[@Rafael-xy5ti]

@@paulbrodie you´ve put in words what was into my mind. Cleary, sincerouslly yours.Rafael. Thank you, everybody there!

[@paulbrodie]

@@Rafael-xy5ti Thank you too! 😉

[@lynxg4641]

Paul, modest doesn't even come close to describing you, seriously. You are one of the most well known frame builders, been doing it longer than most have been riding and yet, so humble and "well, everyone's different, but this is how I would do it", like maybe you aren't so versed and skilled with a torch as you are. Props to Thomas for volunteering to be "coached". Looks like he was improving each time he did it, biggest thing to remember is, as you kept telling him, the silver goes where the heat is. On a side note, does he plan to put in a vertical brace in the DS chainstay yoke piece he made? Ask as to me, that looks like a failure waiting to happen.

[@paulbrodie]

Thank you. Thomas said he didn't want to talk in the video, but then he did! He bought the yoke from somewhere, and I didn't think there is a vertical brace yet to be installed. I am skeptical of yokes. We will see if it lasts...

[@dhpuls]

Another Great Video, Paul. On a personal note, Keep on fighting the Big C. Lots of people beat it. Thanks for all your teaching methods. I greatly appreciate it. All the BEST to you!

[@paulbrodie]

Thank you David. I appreciate your support! 😉

[@gordonhenagar6652]

This was a great instructional video that you guy made Paul, I’ll bet the student was feeling the pressure but he did a good job.

[@paulbrodie]

Yes Gordon, I think Thomas felt a little pressure, but handled it well.

[@bernie7613]

Yes, I like it! I've already learned a lot, thanks!

[@paulbrodie]

Thanks Bernie! 😉

[@TL243]

Man. Wow. Just wow. When you watch someone so skilled it inspires us all.

[@TL243]

I know you want to build motorcycles but your bike skills are epic. If only I had one of your bikes when I did RAAM.

[@paulbrodie]

I like to do both, but I ran out of bicycle building things to do.

[@paulbrodie]

Thank you.

[@RogierYou]

Excellent lesson 🙏

[@paulbrodie]

Thanks Mac.

[@MrPhotodoc]

Free school! Thank you!

[@tiffinthyme5822]

Hello Paul, I hope you are not too sore after your fall? Do take it care. Yes the tutorial approach was very interesting, one could see you have a concise ability enabling you to guide the student. Always interesting to see the technical side. It would be instructive to have the differences between each process, silver soldering compared to brazing and the strengths of each any why it may be appropriate for a particular application. Thank you to both you and Mitch for the video. Regards Kevin.

[@paulbrodie]

Kevin, thanks for watching and commenting :)

[@AndreasHappyfarm]

Very cool to see this 101. You make it look so easy in all your videos, but it obviously isn't. Goes to show just how much experience you have. Teaching is great for any master craftsman. I'm a mechanic and a lot of the things I do on a daily basis happens unconsciously. Having to brake it down and explain it to someone else is a great opportunity for increased self-awareness :-)

[@paulbrodie]

Yes, when you explain to someone else what you are doing, it increases your own awareness of the operation.

[@Corsagangsta]

Thank you very much for this video🙌🏻 It helps a lot to see somebody who is also new to framebuilding getting your advices. If you ever do another framebuilding 101 class I would be the first on the list 🤩 Best greetings from Austria

[@paulbrodie]

Thanks for watching!

[@brianlevine5213]

I did industrial silver soldering. Temperature sensors soldered to wires, stainless steel tubes soldered to fittings,etc...I used ruby tipped mini torches. Lighted magnifying lens. Had to build my own jigs for different jobs. Didn't know bikes were silver soldered.

[@paulbrodie]

Very few frames are "all silver soldered" Some have silver soldered braze ons, that's all. A lot of frames have no silver soldering at all due to it's high cost. 😉

[@brianlevine5213]

Next time you get French fries look at the fryer. You'll see two stainless steel rods in a corner going into the oil. There are temperature sensors in the ends of those tubes. They are doing a constant series of comparisons to guaranty the temperature of the oil. Made thousands of "Pitco" brand sensors. We had a patented device that welded the end of the tube into solid ball while the tube spun in a chuck. Protects the sensor.

[@brianlevine5213]

When I moved back to Texas I used my silver soldering experience to make Cowboy jewelry. Trophy buckles,etc..My bosses were a genuine King and Queen of the rodeo from Australia. Really enjoyed the "handmade" aspect of the work. No machine can do it.

[@paulbrodie]

@@brianlevine5213 Sounds like your career was good for you.

[@brianlevine5213]

@@paulbrodie I made trophy buckles for both a San Antonio Texas rodeo and a Houston Texas rodeo. Had people come in who wanted copies of pro buckles."Stolen Valor" at its best. I'd like to try a bicycle.

[@matthewsmith6486]

Outstanding!

[@paulbrodie]

Thanks Matthew!

[@davestambaugh7282]

If the melt temperature is higher than seven hundred and fifty degrees it is no longer soldering but brazing. The silver solder I use is one hundred percent silver. I see a lot of stuff on the market that is called solder but bu has a much higher melt temperature that the pure silver.

[@tobiasom8629]

This is a really nice format for learning as said by others! I found your videos as I need to replace a dropout on a treasured Alan Richards/Tower cycles frame. Very useful primer to terminology and practices in all your 101 series! Dropout replacement would be a nice video idea if you get the time. It's a common repair but there's no videos out there 🙏🙏

[@paulbrodie]

Replacing dropouts is not something that happens frequently. If a dropout does need replacing it's usually the right side only. Chainstay replacement happens much more in my opinion...Thanks for watching.

[@kevinyeaton6963]

Great video. Please do more in this format. Thanks

[@paulbrodie]

Noted. Thanks Kevin.

[@slideman.]

Great Video! not only the excellent content, but also great video work! Thanks.

[@paulbrodie]

Hey Vlad. Good to hear from you! Yes, Mitch is good with a camera :) Stop by sometime.

[@sprocketandwheel]

Paul...great tutorial. When i am installing water bottle bosses i make a ring of solder and preposition it under the fitting..heat it up and it flows like butter on hot toast..

[@paulbrodie]

Thank you! If you are making a ring, my first thought is that you are using too much silver solder. I'm pretty sure I use less solder than that. And silver solder, as you know, is not cheap!

[@Hertog_von_Berkshire]

Sorry to hear you took a fall Paul. Same here. Last week black ice dumped me off my mountain bike. Heavy landing but nothing broken. Take care.

[@paulbrodie]

Well, sorry to hear you also fell. Damn ice!

[@robdogz01]

Great format Paul keep EM coming

[@paulbrodie]

Thanks!

[@phrodendekia]

Man, every word is pure knowledge gold.

[@paulbrodie]

Thank you very much.

[@woodandwelding]

Tip distance! I put that tip in my toolbox, thanks Paul

[@paulbrodie]

Thanks for watching!

[@ahoff_46]

Love the format!

[@paulbrodie]

Thank you.

[@guyfranks4354]

How about a chalkboard drawing to illustrate how to adjust the flame for the 3 types of flames for us neophytes venturing into gas torch work?

[@paulbrodie]

Yes, a chalkboard drawing might be a good idea. I know it's not always easy to see what is going on with a flame, especially if it is small. Thanks Guy...

[@WillemvanLonden]

Nice to see you trucking on. Keep it coming.

[@paulbrodie]

Thanks Willem.

[@leedale4008]

Love the special tool,sure beats having to grind a pair of mole grips off 😬take it easy and Merry Christmas.

[@paulbrodie]

Thank you Lee... 😉

[@tomrayborn6558]

Verry helpful

[@bigbird2451]

I like that split chain stay yoke. Very stylish. Size, angle, distance and gotta hold your tongue right.

[@paulbrodie]

Yes, some like yokes, and others, not so much.

[@tomfortson5147]

Paul, great job teaching Thomas! YES - this is a helpful format! Nice job, Mitch on the filming!

[@paulbrodie]

Thank you Tom.

[@jeffreylynch3203]

Silver soldering releases cadmium gas, which poisoned me years ago when I did a big job. Not fun. Good ventilation is a must.

[@paulbrodie]

Yes, a workshop is not always the safest place to work. We do have to be careful....

[@WireWeHere]

Madehe welding awards for 4th year apprentice electricians using leftovers from Columbus and Reynolds with a little Gitane top tube for an apprentice from France winning 3rd. Brazed 3rd, silver soldered 2nd, and TIG welded 1st with gold leaf on the bead.

[@paulbrodie]

Sounds cool for sure..

[@seriksson9721]

Very very very interesting. Thanks so much. Several good tips.

[@paulbrodie]

Thank you.

[@pimplequeen2]

You are a good sport, Paul. I don't have your finely tuned skills, but I also tend to pass on what I do have when someone wants some fabrication or repairs. It's fun watching someone crest the hump into realizing that it's not magic and with effort and time they could best me if they chose too. When I first started engineering in what was left of the UK cotton industry, the old timers where the same, some of them were artisans of what they did. I'd take endless shit (in good humor) and they would make sure I didn't cut my fingers off or set fire to myself. I became a bit of a "jack of all trades", not highly skilled in any one discipline but had some skill in many so survived much of the employment decline. I am in hospital at the mo getting my stem cell transplant for MM, hoping to get back to flying by late spring :) Hope you continue to gain strength; you look like you were in good pre-diagnosis condition, maybe you will be one of those lucky sods who sails passed a decade+ in good nick :)

[@paulbrodie]

Thanks for your comments. I am due for my stem cell transplant in February, so I hope that goes well. Hope yours goes well too :) All the best!

[@pimplequeen2]

@@paulbrodie It's not been fun so far, struggling to get to sleep and struggling to stay awake in a kind if limbo between the two. I can't offer more than that as I am only about a third way through my stay. Fingers crossed we get over the hump of it all into some useful strength and playtime! Good luck!

[@paulbrodie]

@@pimplequeen2 Hang in there... I wish you the best! 😉

[@pimplequeen2]

@@paulbrodie Hey Paul, just a quick heads-up, I had a pretty rough time through the transplant, still very weak but now comfortable, I can make it to the toilet and back now without heaving my lungs to catch my breath and I have only just started eating some solids. Don't think I will make it back into my shop for weeks yet. Not everyone gets it so rough but don't let it catch you by surprised if it's terrible! (It scared me just how bad it was but apparently its reasonably common) Eat like you don't care in the interim, you are likely to lose a lot more weight! Anyone who can get through a stem cell transplant without feeling like they are losing has my upmost respect :) Good luck xxxx

[@paulbrodie]

@@pimplequeen2 Thanks for the comments. We will see how I do with the transplant. I know it is not something to be taken lightly.

[@11ccom]

Good stuff.

[@paulbrodie]

Thanks!

[@davestambaugh7282]

They taught me in school that if the melt point is above seven hundred and fifty degrees it is brazing and not soldering. I frequently use Harris stay bright. It is ninety five percent silver and comes with liquid flux. This stuff you are using must have cadmium in it. I have brazed a lot of wave guides at work. The biggest mistake I see others make doing this is that they don't use enough flux.

[@paulbrodie]

Without looking at the packaging, I believe the silver solder is cadmium free.

[@Rino07]

Once more, a great vid. Just inspiring! Thanks.

[@paulbrodie]

Thanks for watching!

[@bradwiebelhaus7065]

Learned something today. Thanks, Paul.

[@paulbrodie]

Thanks Brad.

[@davorinrusevljan6440]

I liked it!

[@paulbrodie]

Thank you Davorin!

[@TL243]

It’s a classic case that you have forgotten more than we know.

[@paulbrodie]

Yes, I can be forgetful, that's for sure..

[@rosonoftom1655]

Finally, someone that can pronounce solder 😂

[@paulbrodie]

Thanks for noticing. I really did spend a lot of time woking on my pronunciation. :)

[@WireWeHere]

Swap his hands so you're teaching the hand that isn't so set in its ways. Seems like a good reason why it's worked before.

[@paulbrodie]

Sounds easier said than done. I have never swapped anybody's hands...

[@jackcrouch9901]

More videos like this would be great

[@АрсенийРозенберг-э2л]

Can you make a video or explain some methods of alligning vintage steel fork? Something except perfect flat and expensive steel table, something maybe tricky, but affordable?

[@EJ-uz9xp]

Thank you so much for this video! This is realy inspiring. What pressure do you dial in on the regulators for Acetylene and Oxygene? Thank you and please keep doing what you are doing!

[@paulbrodie]

Thank you EJ. Pressures were a few pounds, like 2-4 lbs. OK, we will make more videos..

[@karlalton3170]

Interesting video Paul and great Tip's 😁😁👍👍

[@paulbrodie]

Thanks Karl.

[@eweunkettles8207]

is that a gasflux system and a powder fux as well, i have the chamber with the liquid flux gives a green flame like yours but does not need additional flux

[@paulbrodie]

I have an inline fluxer and I also use a paste flux. Best of both worlds!

[@eweunkettles8207]

@@paulbrodie i did my bike test with a trials cub similar to yours almost 50 years ago i had to snick it into neutral whilst rolling up to a stop as the clutch was typicaly dragging , test was a few runs round the block , then the guy jumped out in front of you for the emergency stop , any cub ive heard seemed to have a bit of 8 stroking just off idle and one of the lads cured his by drilling a small hole in the air slide at the top edge which of course got covered as the slide moved up ,i suppose filing the cut away would be similar, the cub is still very popular with the trials guys and there is a few trick 280 cc ones at the scottish 6 day event its the engine that led to the many bsa unit singles and ultimately the CCM motocrossers

[@eweunkettles8207]

@@paulbrodie its very important when brazing the old malleble iron bracket frames not to overheat the frame tube i use silicon bronze and an oxy propane rose head nice soft flame that is kept moving with the tube located in a blind lug you can cut pellets of filler wire and coat every thing with powder flux , put enough pellets inside and when they melt the tube is filled inside with braze as well as the capilary joint , i discovered this while re tubing a velo mov frame i wondered what the bits of filler were rattling about i had a sidecar wheel bracket fail on me at 80 mph with life changing injuries 2 years ago on close inspection you could see the brass contamination through the steel and where the crack had been slowly bud surely

[@paulbrodie]

@@eweunkettles8207 Yes, trials Cubs seem to be quite popular in the UK. If I didn't already have 2 trials bikes I would probably build one. Thanks for commenting! 🙂

[@bernardo247]

Great!

[@paulbrodie]

Thanks!

[@discipleoftheword1785]

Genius

[@discipleoftheword1785]

I mean today’s video strategy

[@paulbrodie]

Thank you.

[@chrisbrady-t1u]

What pressure do you set the regulators at?What size Victor tip are you using?Come on guy!

[@ElvisontheMove]

What pressure do you have your oxy/acetylene set at?

[@paulbrodie]

Probably 2-3 pounds.. Not much...

[@bobbauvian7700]

I like that work holding you have. what is that called?

[@paulbrodie]

If we are both talking about the same thing, it is called a Park Stand, from the bicycle industry...

[@cvspvr]

hey paul, i want to build a cargo rack for my bike. would one of those $100 oxygen+propane blowtorch-sized torches produce enough heat and will the silver solder joints be strong enough for a cargo rack? thanks!

[@paulbrodie]

I have never used oxy / propane so I really have no idea, sorry. Silver solder is only strong in a lug type situation. If you are going to use it like a fillet brazing situation, it might be strong enough, or it might not. Very hard to say...

[@cvspvr]

@@paulbrodie thanks for the answer. i found a few videos of people building bike frames with fillet brazed silver solder and a regular blowtorch, so i guess it's good enough as long as it's stronger than the tubes of the bike frame

[@markmywords5126]

Thanks for the video. What pressure are you using on your regulators?

[@paulbrodie]

Just a few pounds on each. Nothing significant...

[@jimthode]

Interesting. Having ran a Ox/Ac torch for ages I know what the cone looks like but in your video I could see no cone. Maybe some manual exposure control on the camera would help to clearly see the cone.

[@paulbrodie]

The cone is very small and short. Probably 3mm at the longest.

[@murukesanrajappanachary5758]

Pl. Help me to solder one 60percent silver lamp. Kindly tell me how to make solder, While I trying to solder, the lamp starts to melt before the solder. Sir, please

[@paulbrodie]

Well, I cannot see what you are doing, so you are asking me to imagine... It sounds like you have too much heat, and silver soldering silver is not easy. You will need either a smaller torch, a smaller tip, and possibly a smaller flame. Less Heat. You might even have to make a heat sink of some sort for the lamp to keep it cooler...

[@melbrooks5816]

I'm just glad your soldering has an l in it...

[@robertadams4415]

I found it very interesting

[@paulbrodie]

Well thanks!

[@yodasbff3395]

I like the concept of your heat sink, it is very clever way to do it. 👍 Where do you get your silver solder, the stuff the craft stores have doesn't have a high enough silver content?

[@yodasbff3395]

Take care of yourself and get well soon. 🙏

[@paulbrodie]

Thank you !

[@ludditeneaderthal]

Thomas seems camera shy, a bit worried about the world catching him "being a dope", lol... RELAX TOM!

[@paulbrodie]

You are correct.

[@speedracer650]

Remove all brass fittings and replace with stainless. The header pipes need to be smaller and wrapped. Large pipes are for large displacement/ cfm , smaller diameter = higher pressure for the turbo and yes ,your turbo is too large for the displacement of your engine the boost is too low at low rpm so the fuel vapor condenses into droplets.

[@paulbrodie]

Whose channel are you responding to? I do not even own a turbo! Maybe your sense of humour has run away?

[@speedracer650]

@@paulbrodie Sorry ,it was not intended for you, I clicked on the comment icon for Cars and Camera's turbo charged v twin mini dragster. One of your videos was next in que

[@kevinhornbuckle]

Dancing wrist to control heat.

[@paulbrodie]

Yes! Good eye.

[@MegaTubescreamer]

interesting to watch this paul ,like a jedi passing on the "force " of frame embellishment 🖕thanx again dynamic duo, 😎

[@paulbrodie]

Again, thank you William.

[@herbwhitmore4482]

Question how do you weld a bottom bracket or head tube on a aluminum frame without distortion or do they machine it afterwards ?

[@paulbrodie]

They get machined afterwards. Welding always distorts.

[@mitchcoulter4007]

Sorry, the seat stays were my idea 😅 Thanks for doing this video, guys.

[@paulbrodie]

Thanks Mitch.

[@fourfortyroadrunner6701]

Technically this is NOT SOLDERing. NOT SILVER SOLDER. This is SILVER BRAZE (brazing). Many years ago I worked in HVAC/R and back then we called this "silver solder." Used hi temp silver braze for some work, and mostly "sil fos". But especially nowadays with electronics or plumbing silver solder, AKA low temp or "lead free" solder, calling high temp silver braze "solder" is ESPECIALLY incorrect. The pretty much rulle of thumb is if you can bend the filler material with a finger, it is low temp silver solder. If it is very stiff and requires force to bend it is high temp or silver BRAZE

[@paulbrodie]

Wow, you are certainly the expert here! Very sorry if I called something with the wrong word or words. I will try never to make a mistake in the future.

[@johnbewick6357]

I get the impression that Thomas couldn't even see the flame inner cone, I found it difficult to see on the video.

[@paulbrodie]

You need very good eyesight to do this well. It's hard for Mitch to get the camera to show the cone very well. Therefore, it is hard for you to see. We are doing our best.

[@johnbewick6357]

@@paulbrodie Sorry Paul, I didn't mean any ill to you or Mitch for the video, it just seemed that Thomas didn't know what he was supposed to be looking at. Not getting the torch close enough to the work, was, in my opinion, someone who was not seeing what they should have been looking at. I have taught many people to weld with oxy/ acetylene, and one of the main problems encountered was with them not being able to differentiate the inner flame cone with the main flame, or an oxydising flame with a carburising flame.

[@paulbrodie]

@@johnbewick6357 Thomas was trying to do something he was not used to: getting the cone very close. And being on camera at the same time. I did not take any offence to what you wrote, don't worry. Thanks for commenting... 😙