Silver Soldering A Model Boiler : Failure! | Model Boiler Build Part 7
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- čas přidán 20. 08. 2021
- This episode on Blondihacks, I take a swing at silver soldering my latest boiler project! Exclusive videos, drawings, models & plans available on Patreon!
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Pressure vessels are dangerous. This video is for entertainment purposes only, and you should not use any information contained herein to build your own pressure vessel. It is your responsibility to know what you are doing, and to conform to all local laws and regulations. - Věda a technologie
If you’re not having failures on your projects, then you’re not challenging yourself enough. That means you’re not learning, and if you’re not learning, you’re dying. Push yourself!
Don't forget to turn on closed captions if you hadn't.
"We progress through error". Pontius Pilate in the film Ben Hur. BobUK.
@@bobuk5722 "What is truth?" - Pontius Pilate (John 18:38)
Exactly! one must push themselves out of their comfort zone to be able to learn something new, i always tell myself no matter how smart someone is at something they do, they where never that smart at it when they started doing it in the begging. Im glad you still put the video out! I could only imagine how painful it was to have to scrap the project, but your an awesome machinist, this way i get to watch you build another!! looking forward to it
Agreed! I am learning how to 3-d print and paint models without looking at things online, and the thing I am loving about this, is seeing how the materials work and fail when used with each other. It was frustrating dialing in the 3-d printer just to prevent most threading and get an even print that didn't de-laminate, while having a nice finish
.
Just a note: black krylon sandable primer, even after it cures, works like you are touching charcoal, even after sanding. Imaging how annoying it was to find fingerprints all over my shirt from just picking up the model and not looking before touching anything else.
Quinn - what a heart-breaking outcome after so much careful preparation. I really have to hand it to you for taking it all in such good spirits, and for being ready to move ahead with an improved plan!
"It's never a mistake if you can learn from it" is a point well made.
My Pops taught me, when you learn it is going to cost you time, money, of a piece of skin... You made it with only two Quinn! Good job.
My question is, what was learned? Thicker silver solder should have been used? Would that have solved the problems?
Another one I heard was that it's not a mistake till it can't be fixed.
No advice. One of the main reasons I became a patron is your willingness to share your mistakes. On the internet you bravely expose yourself to trolls. I love your videos so keep them coming, especially when things don't go so well - I have learned a great deal from you...
Ten points for the intro!
Ten points isn't enough!
... somehow i hear a Doors song in the background .... in the end ....
@@timbrocklehurst875 I agree, but I decided to use Ballroom criteria, where ten is absolute perfection.
5 bonus points for kitty's opinion
My wife and I love watching your videos. She wishes you would not say you were stupid when you make a mistake. You’re not stupid, just learning a newer rarely used skill.
Well, people also call me arrogant a lot so I can’t win on tone. I just be myself and hope that’s good enough for people
“It is not the critic who counts, not the one who points out how the strong man stumbled or how the doer of deeds might have done them better. The credit belongs to the man who is actually in the arena, whose face is marred with sweat and dust and blood; who strives valiantly; who errs and comes short again and again; who knows the great enthusiasms, the great devotions, and spends himself in a worthy cause; who, if he wins, knows the triumph of high achievement; and who, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who know neither victory nor defeat.” I have been enjoying your journey. Good work!
I've been in that situation of "let's pull out the nuclear option" to see where I went wrong. I have to say my heart dropped as soon as I saw that ban saw, but good on you for not giving up.
FACTS as soon as she started cutting I was heart broken for her. But damn good choice and thinking
One of the many things I love about the channel. We see the bumps, warts and all. My pops told me, "Son if your not making mistakes, you aren't doing much". I guess I have been busier than most.
It is always amazing to see people that are secure enough not only to admit to failure, but showcase it so that others might learn from it. I am very impressed, not only by the video, but the amazing amount of time you put into chasing leaks. Here is hoping the next iteration is much better.
this, a lot of us could learn a lesson in humility from Quinn
"Failure is only failure if you don't learn from it. If you do learn from it then it's just a step along the way."
Quinn, of all the wise things I've heard you say on your channel, this is the best by far.
You've been doing an excellent job of documenting your plan, the challenges you've faced and the ideas you've had for overcoming those challenges. I'm sure the setback you've faced here was difficult, but your ability to document the problems you've encountered and your new plan for overcoming those problems inspires me. Thanks for taking the time to share all of this information with the rest of us. 👍
What a great journey. It took me months to get my industrial refrigeration silver solder certification, with teachers helping the whole way. That is a very complicated solder job and frankly you did better than most could have. Keep cutting them apart and learning, it is what makes you a success, not a failure.
Well said. Is your job intresting? Is it like walk in freezers? Honest question. Cheers ta
This is actually one reason I love CZcams getting more real videos. We all fail, it happens. Seeing people screw up let's you know it's ok and not the end of the world. This as a good thing. (Now I'm back to butchering wood and ruining bookbinding projects)
You have educated a lot of steam engine builders with this video including me!
Hats off for showing your failures as well. Thats one of the many things, that makes your channel so very special. Thanks!
Watching experts do everything perfectly is very educational and inspiring but watching someone fail miserably, analyze their mistakes and learn from them is far more relatable. That level of failure after the amount of work put in is heartbreaking but I’ll look forward to the next attempt. Many would just give up.
When fixing one tube at a time, put a drill bit or similar diameter 'chill block' in the adjacent tubes to prevent reflowing the solder in them.
I actually did try that as well, but it didn’t make it into the video
Let me give you my qualifications before I make any suggestions. I am a retired US Navy propulsion engineer. I have retubed propulsion boilers, condensers, and various other heat exchangers. I will give you kudos on even attempting something like this. I really think your tube joints were cracking because the tubes shrank as they cooled. In our main and aux condensers on Navy ships we have what we call the floating end. Essentially it is just the end of the condenser that has soft packing around the tubes allowing slight movement of the tubes due to thermal growth and shrinkage during heating and cooling cycles, instead of being rolled and flared like the opposite end. There are two things that you can do that may help prevent the separation at the joints, probably best if you employ both for best results. First, put a slight bow in the tubes, this allows the tubes to expand and contract without bearing directly on your soldered joints. It forces the tubes to bend slightly more when heated instead of expanding directly into your joints. Second, put a slight concave on at least one of your tube sheets, this allows the tubes to expand and contract and have a slight amount of flexibility on the tube sheet. Something else that may help is if you solder the tubes to the tube sheet first and then slide the tube bundle and tube sheets into the casing and solder the tube sheets to the casing. If you preheat the tube bundle and boiler casing in your oven and then pull it out, flux your tube sheet edges, slap it together and then start the soldering process it will reduce the time necessary to heat your joints without spoiling the flux.
This!
i love the fact you show failures. shows you are human.
Takes guts and humility to admit to and even show your mistakes/failures. Thank you You are the real deal!!
It takes bravery to discuss your own mistakes ... but we learn best from mistakes ....
“You never fail until you stop trying.”― Albert Einstein - looks like youre in some pretty august company Quinn. It was nice to hear from Ms Sprocket C Dunki too. 😍
They say the worst experiences make the best stories later, or at least the best videos. I learned a lot from this one. The normally sedate guy over at Chandwell also had a bad week and wound up stomping his model building. What a lovely day indeed.
This video is great. It must have been hard to make a video about a failure but it's a perfect lesson in how to make the most of a situation - we viewers have learned more from this than we could ever have done from a success. Thank you!
If you want a difficult boiler try a Woolnough boiler I finished mine during pickling it was knocked off its shelf heavily denting the top tube
It now sits in the kitchen on display as a reminder not to do this kind of stuff around a dog
The dog is fine
Mike
Thank you for not hiding, Quinn.
Yay!! It's Blondihacks time!!
And then she quotes Mad Max and I want to subscribe more. Love my Sundays with Quinn.
The mantra of learning and development is try, fail, try again, fail better, repeat
You are absolutely awesome. Your speaking is clear and precise, like a magnet you hold my attention to details without any pause, and to top it all, you are smart, knowledgeable, and intelligent. You are any engineer’s ideal soulmate…..👌 thank you🙏
"Why are you so smart?"
"I learn from my mistakes. And I make a lot of mistakes."
Seriously, that's how I learn stuff. Thanks for sharing your mistakes and the detailed analysis of what went wrong, so we know how to make it go right.
You made "Fail of the Week" on Hackaday! such honor... :D Always enjoy your videos and have been following along for a long time now, and I have to say I felt your frustrations on this one! Keep at it and looking forward to your successes!
Anyone that's never screwed something up has never tried to make anything. Kudos for you to show your failures.
A person who never made a mistake, never made anything!
Good for you for showing what happened. Too many CZcamsrs hide mistakes via editing and only upload perfect projects. I for example have more scrap than stock 😁. Well done Quinn!
good job a lot of people that hand out comments don't know how to do anything i'm sure you will succeed
What s great video.....never cease to amaze me how erudite your commentary is.
i love the honesty and willingness to put the gory out with the glory.
Quinn.. frequent watcher first time commenting. ..
As far as those armchair experts...
Tell them to Flux off...
Don't let them get to you. Don't let the stupid shit get to you...let it roll off you like water off a ducks back.
You do fantastic work with small equipment. If someone truly makes a comment with sage advice, they will come at you as a friend and not condemning. I've done my share of soldering with plumbing and electrical...but I've never done anything like what you are doing here ....Keep on Keeping on....you do good work... Lord knows I've fallen on my face a few times
“You learn more from failure than you do from success” I tell this to my daughter, failure is not something to be seen as something bad but as a stepping stone to success.
I can totally understand how hard copper can be to heat up, regularly work with 100-150mm copper pipe. I’d be very interested to try something like this to see how to overcome some of these issues.
Keep up the great work, the next boiler 2.0 will be the one!
Having several projects fail badly. Failure is the only teacher I listen too.
Keep going Quinn. We all support you.
I’ve never made a boiler, but I make a lot of art projects that use silver solder… that being said, watching this I was feeling every “character-building-skill-enhancing-opportunity-for-growth” moment in this video. Thank you for sharing!
So glad you cut it apart!
I see no failure here. It’s certainly a huge bummer, but You learned from it, we learned from it, and it was interesting to watch. As one of the very small portion of people who also makes mistakes in my projects, I appreciate your humility.
Failures are discovering what didn't work, very valuable. So you've learnt a lot and now have new ideas, isn't that the point? 90% of my time in the shed is spent learning why I just did something wrong haha! Your new approach sounds very interesting, looking forward to that journey too.
Hi Quinn, one of the greatest strengths of your channel is you always show your mistakes, but most importantly you also show how you overcome them too. I am sure you are gutted inside but you have the strength to carry on. Engineering is as much to do with fails as is to do with success. Spacex, is a good example of this. I am sure you will find a way. Go Quinn go, your channel is amazing and that is down to you. good luck with rev II, I do feel for you. I am a retired marine engineer having sailed the worlds oceans many times. I also learn by my mistakes at times. You will get there in the end, I believe different temp silver solder might help. Good luck, and we get to see another build which is great.
Never trust someone who claims a 0% failure rate. Thanks for the great video.
As someone who's soldered thousands of electrical joints, and taught a fair few people to do it well, I found it fascinating how similar, yet entirely different the challenges here were.
I can imagine how difficult this must have been; especially with the setup you had. I'm quite confident that I would have done a significantly worse job, too.
I'm delighted you shared, and frankly given the attitudes of some internet experts, I commend you for doing so.
Great series. Looking forward to seeing the end result, I'm sure it will be superb.
thanks for showing failures as well as success. you are learning from your experiences. thanks again for your time making these videos.
If you're not making mistakes.... Then I have to make the mistakes for both of us... I appreciate seeing your efforts even with and especially because of the mistakes. Doing it perfect the first time, or only showing the one time you got it right, does nothing to show me what to avoid or what doesn't work and why. Thank you for another great video.
Learning is only done when we make mistakes!!! Thanks again!!!!
Ugh, my heart sank when you pulled out the band saw, but I can't wait to see the build continue. Very enjoyable to watch and learn, even through the "failures".
Oh Quinn. What a wonderful video. I’m sorry you had to take a few steps backwards to find the perfect solution. You will! You’re inspiring and continue to impress me. Keep making awesome content. 💃💃💃😊😊😊👍🏾👍🏾
As someone who builds heat exchangers I'd have to say that making the bundle first then inserting it to the shell is the easiest way to build it. I'm really enjoying this build
Lol...I have been a refrigeration tech for over 50 years and done tons of silver soldering as well as silfosing. This would have been a challenge for sure. I probably would have taken it outside and drove my truck over it at some point so kudos for hanging in there and learning from your failure.
At least you tried and thats more than they did.. Good Job
Love the vid Quinn. Some of my fav youtubers make silver soldering look easy, but it's not, and that's really no help. Sharing your process development is so much appreciated and serves me as a sanity check as I create my own failures/learning opportunities.
A lot of CZcams videos are bish-bosh-done. The straight path to success. However, for amateurs and newbies, the key isn’t just in how things are done, but also what to avoid and what happens when things doesn’t work out. Big kudos for showing all aspects of this project. 😎👍🏻
yeah "Failure is Feedback". It's undeniably true, but it's not always easy to suck up. You seem to have boundless energy and positivity. And that is why I hate - nah - just kidding. You're an inspiration, and an enterainment and an education. Thanks for all your videos!
All I'm seeing is an almost-success story with lots of good engineering and good machining. Good luck with the next boiler.
Blondihacks, a good channel for silver soldering is Keith Appleton. Get the items red hot and then apply the solder. Doing the core first and slipping it in will help. Putting the unit on an electric or gas hotplate will keep the heat from disappating so quickly.
I’ve referenced Keith quite a bit on my channel. He’s great, but boiler building is a particular sub-specialty different than casual silver soldering
@@Blondihacks That's true and he doesn't build boilers. But your problem is getting the heat to the source quickly. Build the core first and make sure that is OK before you slip into the shell. Since the mass loses heat so quickly, slow down the loss by putting on a gas or electric heatplate. You may have to the the boiler on a pan over the hotplate. Then do the shell quickly and the heat won't transfer to the tubes as quick. Also, a small fan blowing through the tubes will keep the joints cooler and slow down the conductance. The inner tubes in the core won't heat as fast as the ones near the shell. I pray this attempt goes much better than the last but you learned quite a bit and taught even better. Keith says you have to get the joint read hot before the solder will wick. And having it on a gas burner while you do the tubesheet to shell will allow that to happen without the copper transferring the heat away. The big pressure vessels would be heated in an oven prior to welding then weld the thick shell. You can also turn down the heat slower and allow less stress doing so. Cold solder joints are bad in electronics too. Love your videos, keep them coming! And the next try will be a success!
My hobby consists almost entirely of finding convoluted and time consuming ways of replenishing my scrap bin. I often wonder if it would be better to cut out the middle man.
Same hobby I have, I know a lot of people that are in this club . They just are still in the closet about it. When did you come out?
My wife knew about my god dynamic from day one, she still can laugh and cry with me about it.
Hey stuff happens to all of us, but I do enjoy your clear explanations and reasons and dedication, we're on the same wavelength.
That was quite the emotional journey... As the little voice in my head always says: "Life is a part of failure. Now get me some ice cream."
Ooof. Having watched this whole series, it definitely hurt a bit to see you cut it apart.
I recently had a similar experience while trying to make myself a wedding ring out of carbide and mokume. While silver soldering them together, I got it too hot and melted the mokume into a puddle. This was 2 days before my wedding mind you...
Congratulations any way! we had to us a propane blowtorch(weed burner) to clear the ice off the church steps but we decided not to worry if it was us and the preacher that was ok too but it all worked out
Yep, it's really easy to melt bits you're brazing together... none of mine were required two days after the mishaps so I hope it all went well!
Good for you for sticking with it
you become good at something by gaining experience , you get experience from making mistakes.
You won't learn anything if you don't have failures along the way! Story of my knowledge base, but it has done me well!
Regarding remelting joints when you go 1-by-1, the solder forms an intermetallic compound with the base metal. This results in altered melting points, usually in your favour - less likely to remelt. However, intermetallic compounds are brittle and can result in weak spots.*
*They may be even worse if you heat the boiler all at once for soldering as intermetallic compound growth rate is proportional to the square root of time - the longer the joint is hot the more intermetallic compounds form.
I’ve been down a few rabbit holes on projects as well. But being stubborn is a trait I’ve polished to perfection over the years. I just don’t give up, it usually works out eventually. 🇨🇦
🇨🇦
I grew up with my mother's motto: "The (wo)man who never made a mistake, never made anything." Amazing video Quinn. I'm invested in this journey.
I'm a firm believer that you learn more from your mistakes than your successes and I think it's a shame that the human psyche paints mistakes in a negative light. I sometimes intentionally do something the wrong way, even though I know it won't work out, just to be able to observe *why* it doesn't work that way, and those observations add to my collective knowledge base for future works. Reading a book that tells you how to do a thing is good and all, but understanding why the book wrote it that way to begin with is still extremely valuable.
What a shame after all the work you have put into it I wish I was with you when you were silver soldiering the boiler. I’m 82 yo now and served 5 year apprenticeship to be a boilermaker and worked on full size locomotive in steel and built loads of model copper boilers. You made a fabulous job of all the copper parts you kept it spotless you fluxed all the joints carefully but you didn’t get it hot enough. That boiler could have been saved but I bet you have learnt a lot for your next one. It’s ok to wave the flame over the tube ends to make the silver soldier to run but don’t linger in one spot keep the flame moving. Cheers Doug.
She who never failed, never tried...
Well that sucks Quinn looking forward to the next build.
You earned a thumbs up in the first 45 seconds! LOL
If you never fail then you aren't doing anything at all. Posting failures is a great way for us to learn. Thank you!
You had me at _Failure!_
Edit: you get green flames from heating clean copper; it's how they get the green in fireworks, as well.
Copper isn't very volatile by itself, but salts can evaporate, especially chlorides -- chloride also enhances the color, that's how they get the intense blues in fireworks as well. (The green seen here is just plain copper, I think; Sparex is a sulfate salt, presumably that's what form the copper is in.)
Best video yet, Love the honesty. Thanks for the insight. You are youtubing correctly.
You should be happy that your boiler didn't turn into a pickle after all that rinsing!
I'm glad you shared this with all of us. Keep up the great work!
"It's never a mistake if you can learn from it", is the one comment excellent teachers use to build a better world. I guess only the sawdust is lost of that cooper and wish you a better outcome next time. Looking forward to see it working.
Learning how to avoid making the same mistakes the next time -- now there;s the rub! Good Luck Quinn. I have faith in you.
A lot to learn from this. Definitely not an easy task. Sorry about the failure, but I think you learned a lot, and so did we.
im both sad and happy to see this failure. sad because of obvious reasons but happy since we get to see another try
Thumbs up for shiny and chrome reference!!!
We all take a bite of humble pie from time to time. But when you succeed...and you will, it makes it just that much better, because you accomplished something that wasn't easy. We live ,we learn, we fall ,we get back up. Keep your chin up. You'll get it !
Heh nice intro! ;) As a SW engineer all is about learning, iterations and bug fixing :D And we are lucky to have that freedom because in building bridges you have only one try :D
Hey, you know what you should have done different? Nothin' It really, really, sucks that this project had this hiccup but I think it's incredibly important for viewers to see that sometimes "stuff" goes sideways and how a smart, productive, focused adult deals with it.
Two for one video! Engineering up front, forensic science in the back.
I filed away some great lessons, reminders, and ideas for future work and I was entertained by the humor along the way. That's why I'm here.
You are awesome. I will tell my nieces about you!
You did the hardest part already, you stopped, cut it apart, and did your failure analysis. And then put it on CZcams. That's the best reason to sub that I can think of. 👍🏾✌🏾
If it is any consolation, I was totally bummed out when there wasn't a Blondihacks video before I went to bed last night on the East Coast. I takes a lot of courage to hold your hand up and say "I failed." It takes even more courage to then turn around and ask "Why did I fail and what can I learn about myself that will help me to succeed in the future."
Failure is a rough teacher. Thank you for sharing. It is a struggle for all of us who aspire to design, build and learn. Your sense of humor is also appreciated. Keep up the struggle, the results will be beautiful.
Granted I haven't worked on anything nearly so complicated, so make of this what you will --
If it's thermal stress that's tearing the joints apart, minimizing temperature differences is paramount. Perhaps something more akin to furnace brazing is in store?
I like that propane burner, powerful and broad -- it should do well (and indeed does!). I've worked with similar burners before, like the, oh what was it, Reil-style I think? -- I made, back in the days when I did some home foundry work (and brazing, heat treating and other fire-adjacent activities). Do be careful how you hold/orient it -- it's not like an oxy torch, it needs to breathe clean air. (You probably noticed, like at 18:40.)
The trick is to have good insulation, and make convection work for you. Those heavy firebricks, are excellent heatsinks I'll bet; they're heat resistant to be sure, but you need to seal in the heat so there's less temperature dropped across the assembly. If you've got more of that thermal blanket, wrap it up! Not tightly, you need some space for airflow around the work, but do surround it. That stuff makes a fantastic ersatz furnace just laid up on itself. Leave an opening at the bottom to poke the torch into, and close up seams everywhere else. Try a few setups, direct heat, tangential heat, elevate the work on some bricks, burner towards the middle, etc. See what heats it most evenly. You don't want to overheat the bottom while you're soldering the top end, of course. And I guess you'll still need the top open for inspection, or spot-checking any solder that didn't quite fill, but that shouldn't be too terrible at this temperature, the whole thing is only red hot.
Alternate insulation: those really light, foam-like firebricks. Just stack them up nice and tight. Or the fiber board stuff, that looks like a pretty good insulator too.
Another tip about the propane torch, you may want a regulator -- I'm not sure how well that torch design will deal with different pressure, but if it's well behaved, you can throttle it by just dropping the pressure. Could also use just a metering valve, of course, a regulator is more precise/stable. Point being, turned down, you can safely leave the torch sitting at the bottom of this "furnace", preheating the assembly. You might hover just below soldering temperature, and go in there with your oxy brazing torch and do up everything super easy -- now it only has to add a hundred degrees, not a thousand! (I have the identical situation in my professional work, soldering on electronics -- circuit boards full of thick copper traces can sink heat like no one's business, and you can't just heat the piss out of the thing as it's made of epoxy -- a little too high and the stuff blisters and chars, ruining the circuit. A preheater to just below soldering temp, makes things so, so much easier.)
One last comment about the torch -- if it's set slightly rich (which it looks to be; can be hard to tell on camera, but it's a somewhat greenish flame, while blue is neutral and purplish is lean), the reducing environment /actively cleans copper!/ Where it turns pink under the flame, that's not just a fancy show, it's the real deal, almost as good as paste flux. (Almost, basically because if the solder contains hard-to-reduce metals like zinc, those still need to be cleaned off by flux action, the flame won't cut it.) And, flux is used up by dissolving metal oxides (just as the pickle solution is), so using a reducing atmosphere extends the working time of the flux. You probably won't be able to seal up a stack-of-bricks furnace well enough to prevent wisps of black oxidation during the heat, but if it stays mostly pink, that'll go a long way.
Seeing all those pinholes, cracked joints, and ultimately cutting the whole thing up, was heartbreaking just to watch; I can't imagine it was any more pleasant to experience first hand. You have my condolences. If you're sticking with it -- hopefully these and other ideas help out. Good luck, and apologies for the long comment.
I agree with your diagnosis. The reason for cracking is that the two halves of the existing joint get a large temperature diference, leading to different expansion and large stresses in the silver solder. The cracking probably happens fairly early on in the heating cycle, and gently heating to 300C slowly should not have any effect on the flux, but will make the uneven heating much less likely. Then fairly gentle again to melting point with the boiler well insulated should get you to all good joins, then more insulation and allow to cool slowly. You also might like to try oxy-propane with a suitable burner. These are a bit different to the oxy-acetele rosebuds, and a slighly reducing flame (low oxygen) will give a lot of heat but not blacken the copper much, leaving less for the flux to do. You will need good ventilation as CO may be produced. I have a couple of sizes, the largest gives 70kW of heat, but they turn down well. They do not fit your miniture oxy set or torch though, try asking a friend in the ME community. Some grades of SS give much better fillets than others, less fluid, and make the joints larger and stronger. Also expanding the tubes into the holes will help, you need to make a thread driven tube expander, but this works because the flame cannot contact the copper in the expanded area, just like a press fit joint, and there is excellent temperature similarity of the two parts by conduction. Very good video, and sorry it didn't quite work out, it will another time. David
We do it right - Cause we do it Twice!... Good job Quinn..
mistakes and failure build character... An Quinn is a real character for sure... nice intro!
Good work. In my youth, I've had to crawl into the water sides / firesides of a boiler to clean them. Each had it's own difficulties. I'm not that small anymore, but I did wrestle at 112lbs varsity in High School. Due to my small size, I spent alot of time in the bilges, small crawl spaces, fuel tanks, and inside of the boilers, etc. Keeping the water side isolated from other boilers and hot steam was a challenge, and took bravery to be inside as you were trusting nothing would fail, and no one would inadvertently open the wrong valve... you never know, even with padlocks chains and red danger signs... humans do weird things. fire side cleanings were also challenging, but for a different reason... as dusty acidic smut got everywhere, and firerooms are not generally cool places, so you can imagine, sweating occurs, and nowhere is safe on your body from corrosion. From you video, it seem like model boilers are just as difficult to keep sealed up as real ones. to this day I know a week has 168 hours, because that's the maximum time between bottom blows for a propulsion boiler. Steady on, and keep up the good work. Long story short, we had access man holes and hand holes to get to the fire sides and water sides. Also, our boilers were made of steel, not copper. so yeah. I have no advice for you, but I admire your tenacity.
Sprocket did a meow meow!
so true quinn we learn by our mistakes no matter what project we do theres always mistakes along the way
This is why I love this channel. You’re not afraid to just be real and every hobbyist can relate to it. “Well that didnt work” instead of “Look at this thing I did perfectly with no issues”
Quinn, keep it up!
No unsolicited advice to even think about offering! This is far beyond anything I've ever considered attempting. It's easy enough to share success, sharing this failure after so much hard work is beyond admirable.