Story time! I made one of these like 4 years ago and I was doing some aluminum smelting. It had worked really well in the coal furnace the last two times, and me and a buddy were about to do a third burn. At this point, the steel was quite oxidized, but we weren't all that worried. We got it burning and started melting cans. Suddenly, the fire got much hotter and much brighter out of nowhere! It was so bright, it was hard to look at! The chemistry savvy among you may already know what happened... Iron oxide + aluminum + heat = thermite. Anyways, we turned off our crappy billows and let it burn itself out. In the aftermath we found that the whole bottom of the crucible had melted. As had the sand and plaster bottom of the furnace which had vitrified. Stay safe out there.
I had a friend who lost 3 fingers when his angle grinder blade exploded. Absolutely a true story. Wear leather gloves, and a face shield, when using that cutting tool. That thing is spinning much faster than you think. You have been advised.
Seriously. Thank you for no fillers here and just getting straight to the point. The average person tries too hard with informative videos when we just want to know what the heck to do.
I'm glad you were up front and explained how they only last for a bit and then spring a leak. Of all the casting videos I've watched, I haven't noticed anyone explaining that they do not last very long.
All crucibles fail at some point. Heat and contamination from the metals you are melting speed that process up. Consider homemade crucibles a "consumable". Be safe & happy casting! :)
Thank you for the clarification. Grant Thompson only glosses over the fact he used a fire extinguisher and mentions nothing of the size or making handles. Thumbs up from me for this one buddy...
You prolly dont care but if you are bored like me atm you can watch all of the new movies and series on InstaFlixxer. Been streaming with my gf lately =)
thank you for not only showing all the steps, but for showing other things to use if someone cant get an extinguisher at first. i subbed, and i cant wait to start smelting.
Your wing nut design for pouring is exactly how I pictured making mine. Love the lifter design, exactly how I'm going to make mine (probably from rebar). I have an unused bollard. Its at least 1/4" thick by 4 feet long. I'll cut it and get steel caps welded to the bottom. Many crucibles.
This was a really nice video glad you posted it.. Also I'm very glad that you mentioned that same extinguishers are made of aluminum.. I made that mistake on my first try, luckily I caught it as it was melting and was able to remove it. another thing I have used as a home crucible is a steel pipe nipple with a cap on the end.. this works rather well and lasts a while since its thick steel. Thanks again enjoyed watching this.
Glad you caught your error in time, coulda been worse! Many pressure vessels are aluminum such as some medical oxygen containers. Yes, black pipe works well...be sure & NEVER use galvanized pipe & fittings.tho!
No yoy are right I forgot to mention that, yes only black pipe.. never galvanized, sorry took that for granted that people would know that.. wish I was in your neighborhood would love to stop by and see that sand casting demo you were talking about.. did you post it by chance
If ever in Tampa, FL let me know, you are welcome to drop by. No....I didnt get any video of the sand casting classes as those days are rather hectic & lotsa Q & A and making sure everyone stays safe. Just no time for camerawork. Subscribe if ya think the channel is worthy! :)
Lucky you, getting free fire extinguishers. I think I'll end up making mine from steel round or square pipe and have my uncle weld the bottom to it. Love Frankenstein bolts idea :)
My neighbors had two broken basketball hoop stands, I volanteered to "recycle" them and ended up with two main shaft pipes that are about 8 feet tall, at the moment I don't remember diameter but I think it's right size. I think you can find them at Craigslist for free.
Thanks, I have a newer video on making another crucible, its been out about 4 weeks...much better vid if ya wanna check it out. Consider subscribing! :)
I got plenty of fire extinguishers. I used them whilst making rocket stoves for my Vanuatu friends. I never thought of smelting, but now I want to smelt the brass valves from the rocket stove outers which are lpg bottles, so I might use a used fireman’s breathing tank as it will be thicker. I enjoyed your video, many thanks 😊.
Propane cylinders work too. Be sure to empty the cylinder first! The bottom of those extinguishers have a lip, they are not flat. A hooked bit of rod could fit in there for a pour tool. I cut some propane cylinders in half with a hack saw, and a sawsall would work too, if you don't have an angle grinder.
great video. while on the subject of fire extinguishers, like you said, not all extinguishers are the same. Far safety reason, people should study FEs and learn which one has the rating for this kind of work. I just think safety is important. Great video again!
Thank you for the knowledge. I am a new subscriber. I have a question if I may? Have you ever tried to use two cylinders, a smaller, one inside of a larger, one with concrete or plaster and sand sandwiched between them to make a reinforced crucible? I would rather have you give me your experience and what may go wrong if you did then me wasting precious time making mistakes that someone already made. If you have them that you give me an answer I'd greatly appreciate it. Thank you so much. I learned a lot today.
Awesome idea. One thing I might do differently, well actually just add to what you've done. Would be to hit one end that's 90° out from the bolt holes outward. That way you give the molten metal to sure path from it. Would just allow for easier and more accurate pouring.
The solid bottom plywood base would be better if left off to improve and not restrict the cooling airflow for the transformer. The base of the welder is large open screen for that reason. I do like the wheels mounted on the front vs. the back, as you can wheel it closer to the wall and easily retrieve it back out.
Some advice. When you do the fast forward thing with the power tools, it'd be nice if you turned the volume of the video down while power tools are in use but you have a great video otherwise. Thank you
i melted a crusible made out of a THICK extinglisher and it melted through. i found a automatic water bowl for cattle made of cast iron and thats what i use now. i use a 55 gallon barroll use wood and a shop vac
Glad U found what works for ya. Wood or charcoal combined with forced air generates way too much heat to simply melt aluminum. Thats why blacksmiths using coal can forge weld steel cause it gets so hot. Can melt aluminum without the air with wood or coal. Thanks for tuning in! :)
Been using old cast iron pots with the handles cut off and bolts to lift/lower. They last a decent amount of time. I've burned right thru anything less in one or two pours and it's too dangerous to risk. No welding tools so I really do make something from nothing. Did buy a graphite to do copper in. Last years cast pot is done for I think and not sure I want to try it in my newly built melter so....
@@MakinSumthinFromNuthin, thank you-I always appreciate your work. Waiting for new burner-today or tomorrow perhaps, built the furnace then issues with old burner right afterwards-decided to order a new one that uases air pressure as mine needed a blower and I am not intelligent enough to do one without.
@@MakinSumthinFromNuthin Found a cast iron CO2 extinguisher. Really hard to remove the top. Needed a blowtorch & 2' wrench. Used it for an air compressor tank.
Cool...You got me.."poor man" being the key words..Nice work...Wow hey 37 dislikes,you have your own hate club.It's a sad world lol.You could not get any better explained than that..Cheers
Maybe they wanted 4K video with some background music.It may be that you talk funny with that American accent and you say Aluminum (Al oom inum) instead of Aluminium(Al you min ium)...Jokes LOL..Who knows.Tell me,do you think it is worthwhile collecting aluminium cans to melt down?
I have melted down plenty of Aloominum cans and the ingots suit my purposes just fine. Its not top quality aluminum alloy like car rims or previously cast aluminum like lawn mower engines but if ya toss back enough Fosters you can amass quite a pile over time. LOL :)
I am a Tooheys man myself,but i get the idea..lol...I only just realised you replied.I was thinking i still have not heard from that Aloominum fellow,i hope i did not upset him.I was just about to apologise..Good to see you have a sense of humour. It has been my experience that my humour is an acquired taste.I hate when these spell check programs keep wanting me to spell American,as in apologize,realized,humor and Aloominum LOL......You have that many interesting videos,i'll be back mate.Have a good day..Cheers.
I switched from bottled beer which I have drank my whole life to cans ever since I built the Aloominumb furnace simply to get xtra stuff to melt down. I have a healthy sense of humemour and dont get offended easily...I also realize that I have viewers from all over the world that have funny accents and spell words funny...but I dont hold that against them! HA 😜
I actually need to make some stronger firebrick and i was wondering if you had any ides for cheap alternatives for refractive purposes, perlite and vermiculite seem to be pretty popular, but I wanted to try making a silica extract from something I already have...
Awsome, I just watched ur making of a foundry and i have been melting for a couple months now. I liked the idea of U using Perlite an Portland cement so i cut my self a propane tanke for my foundry and i used 60 percent cement and 40 percent perlite i HOPE I DIDN'T MESS UP BY DOING THAT ILL KEEP U INFORMED. Its still curring. But i like ur videos alot u explain things well u keep things simple ect not like most of youtubers on this subject. Keep making more videos say if u try to melt steel so us, just saying lol. but keep up the work dude.
Thanks DJ, its comments like that that keep me making vids. Wish I got more comments on some of these vids to get a conversation going about casting. Great Hobby! :) The perlite is what gives the mixture its refractory capabilities but keep me posted on how 60% works out. For the first few firings once FULLY DRY (dont rush it), it needs to be fully dry so there is no chance of a steam explosion blowing apart the furnace. The 1st firing needs to be on the lowest propane setting you can manage without the flame going out and for just about 5 min, slowly increasing burn time and temp between firings. 5 firings or so is sufficient IMO, then its ready for melts. This purges any excess moisture still in the refractory. Feel free to check out some of the casting videos I have and hope to see you as a subscriber! :)
extinguisher base blocks valuable heat to bottom, why not use schedule 40 pipe(scrap can be bought buy the lb) w/plate base and tripod legs, cheaper in the long run as is welding studs(scrap) instead of nut/bolts saves time/money
Valuable points, the extinguishers are free to me and I reuse the bolts & nuts so the crucibles dont cost me anything. If I come across some nice pipe during scrapping I will be sure to use it. Thanks for watching & commenting
Have you tried, or thought of using a steel bolt inserted into the top threads of the fire extinguisher? That way you get 100% more of sumthin from nuthin if the top portion can also be used? Dome shaped bottom, but could you weld a hook onto the bolt inserted into the threads and assume it would stand up straight in the fire box? "Jusaskin", great video.........
The top portion can be welded to a steel plate if the cut is accurate and be used...but I get these free...so just move onto the next one when they fail. I wouldnt trust threads to hold molten metal
i used a steel crucible from a fire extinguisher for over a year doing at least 2 casts a week it actually started to warp due to repetitive heat cycles before it popped a hole, since then i havent done anymore casting until last weekend when i built a new more efficient foundry that runs on a waste oil burner with a graphite crucible, from what ive been told and read they work better, last longer and dont contaminate your metal so is there any particular reason you dont use a graphite one aside from cost? if anyones interested the video of my new foundry will be up on my channel tomorrow
They are good starter crucibles for the home hobbyist. I plan on doing cast iron here soon in my mini brass furnace, will buy a clay/graphite crucible for that. Thanks for sharing, will check out your set up once you have your vid up :)
Would the crucible grave yard be slightly less populated if you were to rotate the crucibles while inside the furnace so the propane burner isn't always focused in the same spot every time? Maybe rotate the crucibles by 90-degrees per melt?
Thank You Loader. I'm not free yet but I can't wait to be on my own. Now I need to know how to make a poor mans furnace and would a small propane tank or a large one when it comes to metal aluminum?
I have never used charcoal fires or propane canisters as crucibles. You may wanna try a welded up piece of heavy gauge pipe (w/flat bottom) as a crucible as charcoal fires get extremely hot once air is introduced
Given the gentle heating nature of an electric kiln I wouldnt be surprised if you were to get 15-20 uses out of one of these...possibly more...speculation on my part The harsh environment of a propane burner heating the crucible unevenly is what causes these to fail prematurely. The most I have gotten is around 12 melts but usually 8-9 is the long term average Please share your results if you use one. Thx
@@MakinSumthinFromNuthin could you weld feet on the part you cut off and use it as a crucible if you put a pipe plug in it or welded something over the inlet?? just curious
If I was trying to melt a little bit of gold like 5 or 6 grams can you use half inch black steel gas pipe cap as a crucible? And if you can will the gold stick to the steel cap inside?
You could but not recommended, use a cheap, small ceramic or graphite crucible for precious metals. It will likely stick unless you use plently of borax as a flux
I found a 40x40 mm diameter graphite crucible online, what exactly is the size of a 40x40mm diameter crucible? Is it the size of your hand or what and what can you possibly put in it to melt?
Interesting rig for the angle grinder @ 10:20 Maybe it is common but I see it for the 1st time. Is it comfortable for precise cuts? Isn't your left hand in the line of sight?
![KAYTRANADA - Witchy (feat. Childish Gambino) [Official Video]](http://i.ytimg.com/vi/jGK3YVmGZ3Y/mqdefault.jpg)
Story time! I made one of these like 4 years ago and I was doing some aluminum smelting. It had worked really well in the coal furnace the last two times, and me and a buddy were about to do a third burn. At this point, the steel was quite oxidized, but we weren't all that worried. We got it burning and started melting cans. Suddenly, the fire got much hotter and much brighter out of nowhere! It was so bright, it was hard to look at! The chemistry savvy among you may already know what happened... Iron oxide + aluminum + heat = thermite. Anyways, we turned off our crappy billows and let it burn itself out. In the aftermath we found that the whole bottom of the crucible had melted. As had the sand and plaster bottom of the furnace which had vitrified. Stay safe out there.
I recently has a similar experiencia. The still in the extinguishers IS not reliable.
This is crusible can survive for melting Magnalium?
I had a friend who lost 3 fingers when his angle grinder blade exploded. Absolutely a true story. Wear leather gloves, and a face shield, when using that cutting tool. That thing is spinning much faster than you think. You have been advised.
Thanks
Roger that.
Good to know. And will do, as although you may find this a bit strange but I prefer NO disfigurement over some or any.
Great vid,noshit music, simple language, direct and to the point.ty
Seriously. Thank you for no fillers here and just getting straight to the point.
The average person tries too hard with informative videos when we just want to know what the heck to do.
thanks!
I'm glad you were up front and explained how they only last for a bit and then spring a leak. Of all the casting videos I've watched, I haven't noticed anyone explaining that they do not last very long.
All crucibles fail at some point. Heat and contamination from the metals you are melting speed that process up. Consider homemade crucibles a "consumable". Be safe & happy casting! :)
Thank you for the clarification. Grant Thompson only glosses over the fact he used a fire extinguisher and mentions nothing of the size or making handles. Thumbs up from me for this one buddy...
Thanks!!
You prolly dont care but if you are bored like me atm you can watch all of the new movies and series on InstaFlixxer. Been streaming with my gf lately =)
@Logan Jonah Yea, been using InstaFlixxer for since november myself =)
@Logan Jonah yup, have been using InstaFlixxer for months myself :)
thank you for not only showing all the steps, but for showing other things to use if someone cant get an extinguisher at first.
i subbed, and i cant wait to start smelting.
Thanks for the kind words and welcome aboard! Metal melting is great fun...be safe!! :)
Your wing nut design for pouring is exactly how I pictured making mine. Love the lifter design, exactly how I'm going to make mine (probably from rebar). I have an unused bollard. Its at least 1/4" thick by 4 feet long. I'll cut it and get steel caps welded to the bottom. Many crucibles.
aweaome
*I've seen people building these for decades, always wanted my own and it looks like this summer I'll get to it.*
We appreciate your wisdom. I'm going to cast aluminum rings with cubic zirconia. This helps a ton thank you
What a great video! Just great video! Thanks for all the information, demonstration, and no music!😘😘😘😘😘😘
Thank you for sharing, sometime I hope to make a video and show how I make my crucibles, but I think yours is easier to make.
YW...... I find them to be a cheap, easy & reliable crucible
This was a really nice video glad you posted it.. Also I'm very glad that you mentioned that same extinguishers are made of aluminum.. I made that mistake on my first try, luckily I caught it as it was melting and was able to remove it. another thing I have used as a home crucible is a steel pipe nipple with a cap on the end.. this works rather well and lasts a while since its thick steel. Thanks again enjoyed watching this.
Glad you caught your error in time, coulda been worse! Many pressure vessels are aluminum such as some medical oxygen containers. Yes, black pipe works well...be sure & NEVER use galvanized pipe & fittings.tho!
No yoy are right I forgot to mention that, yes only black pipe.. never galvanized, sorry took that for granted that people would know that.. wish I was in your neighborhood would love to stop by and see that sand casting demo you were talking about.. did you post it by chance
If ever in Tampa, FL let me know, you are welcome to drop by. No....I didnt get any video of the sand casting classes as those days are rather hectic & lotsa Q & A and making sure everyone stays safe. Just no time for camerawork. Subscribe if ya think the channel is worthy! :)
+Makin Sumthin From Nuthin thankyou I will
Nice. Thanks for sharing. I like the tool you made to pick the crucible up with.
For a tipping handle you can drill a hole in bottom lip and attach any type handle with bolt and nut, clamp etc.
True. But it will propably also become hot. A detachable handle would be nicest.
Many thanks. Much appreciation to you.
Thanks for watching!
Lucky you, getting free fire extinguishers. I think I'll end up making mine from steel round or square pipe and have my uncle weld the bottom to it. Love Frankenstein bolts idea :)
That will work too! Now that I have a stick welder I will be keeping my eye out for some scrap pipe as well.
My neighbors had two broken basketball hoop stands, I volanteered to "recycle" them and ended up with two main shaft pipes that are about 8 feet tall, at the moment I don't remember diameter but I think it's right size. I think you can find them at Craigslist for free.
Yup, thats a great idea. I get lotsa free stuff off craigslist for my projects. Happy Casting! :)
I like that you took a few seconds to demonstrate the mock-up.
Thanks, I have a newer video on making another crucible, its been out about 4 weeks...much better vid if ya wanna check it out. Consider subscribing! :)
I got plenty of fire extinguishers. I used them whilst making rocket stoves for my Vanuatu friends. I never thought of smelting, but now I want to smelt the brass valves from the rocket stove outers which are lpg bottles, so I might use a used fireman’s breathing tank as it will be thicker.
I enjoyed your video, many thanks 😊.
Thanks for this!! I use those as tanks for. O2, argon, and nitrous, and now yeft
another use!
Glad to help!
Great vid, found this by accident. Glad I did !
awesome!
Propane cylinders work too. Be sure to empty the cylinder first!
The bottom of those extinguishers have a lip, they are not flat. A hooked bit of rod could fit in there for a pour tool.
I cut some propane cylinders in half with a hack saw, and a sawsall would work too, if you don't have an angle grinder.
Yep, they are a good size too 😊
I made 2 propane cylinder crucibles, and both failed on their 1st heat, before the aluminium was even 1/2 melted, so, I can't recommend them...
Some great ideas there. Thank you sir.
You are very welcome, I hope the videos I put out are helpful to others. Welcome aboard :)
great video. while on the subject of fire extinguishers, like you said, not all extinguishers are the same. Far safety reason, people should study FEs and learn which one has the rating for this kind of work. I just think safety is important. Great video again!
Thanks Michael, great point and thanks for commenting on it! :)
For heavy duty crucible use industrial gas tank.
a full one
@@xXUNKNOWNXx For better results
I have a CO2 tank with a bent valve. I'm going to make a yard bell out of the top 2/3s, a crucible is an excellent idea for the rest!
Great little tools you made i am just trying to figure mine out, gave me some great starting points
Glad I could help
Excellent video. Thanks for the tips!
Thanks & You Are Welcome. I appreciate ya watching!
Thank you for the knowledge. I am a new subscriber. I have a question if I may? Have you ever tried to use two cylinders, a smaller, one inside of a larger, one with concrete or plaster and sand sandwiched between them to make a reinforced crucible? I would rather have you give me your experience and what may go wrong if you did then me wasting precious time making mistakes that someone already made. If you have them that you give me an answer I'd greatly appreciate it. Thank you so much. I learned a lot today.
I have not tried that, interesting idea though! If you try it let me know the your results
Just imagine if u had a drill press. Btw You helped me out a lot thank you.
.....this is good for beginners , thanks nice video .
Thank you :)
Super informative video. Thanks!
Thanks!
I've used soup cans for aluminium, if you are careful with handling it you can just about get 1 pour out of it. (charcoal furnace)
yep
What I use is square tubing I find then for about $3 at the junk yard works better than fire extinguisher
Sure, that would work great too. I get fire extinguishers free so.... 🤗🎉
Awesome idea. One thing I might do differently, well actually just add to what you've done. Would be to hit one end that's 90° out from the bolt holes outward. That way you give the molten metal to sure path from it. Would just allow for easier and more accurate pouring.
How would you add a spout?
Genius. thanks I'm doing that tomorrow
I like the extension handle on the angle grinder
Very easy to do, a bar & a bolt :)
Just subbed 👌love the way you explain and the editing love from the UK
Thanks Zack! Cheers from across the pond! :)
Thanks for the tutorial, 😎👍
The thumbs down are just JEALOUS..😏
Thx for watching Wil!
Or crucible makers that are mad that hes showing a cheap way to do it.
@@zachwhyte6040 "CRUCIBLE MAKERS HATE HIM! LEARN THIS ONE WEIRD TRICK TO MAKE A CRUCIBLE!"
Simple DIY $0.00 cost
Materials required: *Rock from Pluto*
POUR man's crucible. Great vid 👍
Casting humor...love it! 😊
Simple and comprehensive. Thank you
Thank you I was all ready to go whene I realized that I didn't have a visible so thank you for your time
The solid bottom plywood base would be better if left off to improve and not restrict the cooling airflow for the transformer. The base of the welder is large open screen for that reason. I do like the wheels mounted on the front vs. the back, as you can wheel it closer to the wall and easily retrieve it back out.
Good to know, thanks! My 1st welder....
Now that is simple and very easy to make. keep using the KISS method
Starts at 6:31
Trap Dodo
thank u
Thanks bro
Thanks
Thanks
great video man you saved me 60$ once again
Sweet. The aim of the channel is to do things "on the cheap" when it's feasible :)
Some advice. When you do the fast forward thing with the power tools, it'd be nice if you turned the volume of the video down while power tools are in use but you have a great video otherwise. Thank you
Free fire extinguishers? Lucky you!
I like free! :)
Why so lucky? Aren't they good as scrap metal once they've passed their due date?
very nice video, great info. thanks for sharing.
Thanks Rusty
Just come across your channel and I love it, you earned a sub
Thanks Ethan, your subscription means a lot to me. Sometimes I question if my videos have value to others. I appreciate ya! :)
Good
Thanks for watching & Happy Holidays! 😊🎉
i melted a crusible made out of a THICK extinglisher and it melted through. i found a automatic water bowl for cattle made of cast iron and thats what i use now. i use a 55 gallon barroll use wood and a shop vac
Glad U found what works for ya. Wood or charcoal combined with forced air generates way too much heat to simply melt aluminum. Thats why blacksmiths using coal can forge weld steel cause it gets so hot. Can melt aluminum without the air with wood or coal. Thanks for tuning in! :)
Cast iron 2 gallon pot works for me.
Thanks for the ideas.
Monoammonium phosphate powder is a fertiliser. If sprinkled lightly over the garden. Will help plants grow faster.
Great video :)
Thanks!
Go to Tru Value Hardware. Get small can of refractory cement (for wood burning stoves). Mix with water to make a slurry. Coat inside of crucible.
In my experience that stuff doesnt hold up in a metal melting furnace. These work fine as is
Thanx for the great advice nice vid
YW!! Thanks for watching & Happy Holidays! 😊🎉
Been using old cast iron pots with the handles cut off and bolts to lift/lower. They last a decent amount of time. I've burned right thru anything less in one or two pours and it's too dangerous to risk. No welding tools so I really do make something from nothing. Did buy a graphite to do copper in. Last years cast pot is done for I think and not sure I want to try it in my newly built melter so....
Nice! Good luck with your new furnace!
@@MakinSumthinFromNuthin, thank you-I always appreciate your work. Waiting for new burner-today or tomorrow perhaps, built the furnace then issues with old burner right afterwards-decided to order a new one that uases air pressure as mine needed a blower and I am not intelligent enough to do one without.
Great video!
Thanks Tony! 😊
Very informative. Thanks for sharing.
My pleasure!
@@MakinSumthinFromNuthin Found a cast iron CO2 extinguisher. Really hard to remove the top. Needed a blowtorch & 2' wrench. Used it for an air compressor tank.
Cool...You got me.."poor man" being the key words..Nice work...Wow hey 37 dislikes,you have your own hate club.It's a sad world lol.You could not get any better explained than that..Cheers
Yup, me gots haters I guess. What did I ever do to those folks!? LOL
Maybe they wanted 4K video with some background music.It may be that you talk funny with that American accent and you say Aluminum (Al oom inum) instead of Aluminium(Al you min ium)...Jokes LOL..Who knows.Tell me,do you think it is worthwhile collecting aluminium cans to melt down?
I have melted down plenty of Aloominum cans and the ingots suit my purposes just fine. Its not top quality aluminum alloy like car rims or previously cast aluminum like lawn mower engines but if ya toss back enough Fosters you can amass quite a pile over time. LOL :)
I am a Tooheys man myself,but i get the idea..lol...I only just realised you replied.I was thinking i still have not heard from that Aloominum fellow,i hope i did not upset him.I was just about to apologise..Good to see you have a sense of humour. It has been my experience that my humour is an acquired taste.I hate when these spell check programs keep wanting me to spell American,as in apologize,realized,humor and Aloominum LOL......You have that many interesting videos,i'll be back mate.Have a good day..Cheers.
I switched from bottled beer which I have drank my whole life to cans ever since I built the Aloominumb furnace simply to get xtra stuff to melt down. I have a healthy sense of humemour and dont get offended easily...I also realize that I have viewers from all over the world that have funny accents and spell words funny...but I dont hold that against them! HA 😜
Great video mate really enjoyed it
Thanks, hope it helps give ya some ideas 😊
That band is going to expand faster then the thicker metal it's on and fall off unless you weld it into place
true, but I have not experienced that yet on any
I found an oxygen tank at the swap meet for super cheap ment to withstand serious pressure and abuse and it's gotta be the best I've used so far
nice! :)
I actually need to make some stronger firebrick and i was wondering if you had any ides for cheap alternatives for refractive purposes, perlite and vermiculite seem to be pretty popular, but I wanted to try making a silica extract from something I already have...
I have always bought my firebrick, cheap enough.....Not worth making
Awsome, I just watched ur making of a foundry and i have been melting for a couple months now. I liked the idea of U using Perlite an Portland cement so i cut my self a propane tanke for my foundry and i used 60 percent cement and 40 percent perlite i HOPE I DIDN'T MESS UP BY DOING THAT ILL KEEP U INFORMED. Its still curring. But i like ur videos alot u explain things well u keep things simple ect not like most of youtubers on this subject. Keep making more videos say if u try to melt steel so us, just saying lol. but keep up the work dude.
Thanks DJ, its comments like that that keep me making vids. Wish I got more comments on some of these vids to get a conversation going about casting. Great Hobby! :)
The perlite is what gives the mixture its refractory capabilities but keep me posted on how 60% works out. For the first few firings once FULLY DRY (dont rush it), it needs to be fully dry so there is no chance of a steam explosion blowing apart the furnace. The 1st firing needs to be on the lowest propane setting you can manage without the flame going out and for just about 5 min, slowly increasing burn time and temp between firings. 5 firings or so is sufficient IMO, then its ready for melts. This purges any excess moisture still in the refractory. Feel free to check out some of the casting videos I have and hope to see you as a subscriber! :)
extinguisher base blocks valuable heat to bottom, why not use schedule 40 pipe(scrap can be bought buy the lb) w/plate base and tripod legs, cheaper in the long run as is welding studs(scrap) instead of nut/bolts saves time/money
Valuable points, the extinguishers are free to me and I reuse the bolts & nuts so the crucibles dont cost me anything. If I come across some nice pipe during scrapping I will be sure to use it. Thanks for watching & commenting
Have you tried, or thought of using a steel bolt inserted into the top threads of the fire extinguisher? That way you get 100% more of sumthin from nuthin if the top portion can also be used? Dome shaped bottom, but could you weld a hook onto the bolt inserted into the threads and assume it would stand up straight in the fire box? "Jusaskin", great video.........
The top portion can be welded to a steel plate if the cut is accurate and be used...but I get these free...so just move onto the next one when they fail. I wouldnt trust threads to hold molten metal
Frankenstein bolts hey... nice ty good idea
Thanks!
Thank you for this im going to watch everything you have on this subject. Do you have the poor mans furnace?
i used a steel crucible from a fire extinguisher for over a year doing at least 2 casts a week it actually started to warp due to repetitive heat cycles before it popped a hole, since then i havent done anymore casting until last weekend when i built a new more efficient foundry that runs on a waste oil burner with a graphite crucible, from what ive been told and read they work better, last longer and dont contaminate your metal so is there any particular reason you dont use a graphite one aside from cost? if anyones interested the video of my new foundry will be up on my channel tomorrow
They are good starter crucibles for the home hobbyist. I plan on doing cast iron here soon in my mini brass furnace, will buy a clay/graphite crucible for that. Thanks for sharing, will check out your set up once you have your vid up :)
Thankyou unfortunately my blower kicked the bucket just as i was about to film the melt so im running on propane in the video
Waste oil burners are interesting devices, I have mucked around with one I made. I need to take it off the top shelf and utilize it more :)
made it real clear thank you
Thanks, hope it helped. Consider subscribin! :)
Very nice.
Thanks Luke :)
So simple thank you
i have an old fire extinguisher and its almost indestructable its quarter inch thick steel took forever to cut with hacksaw
Sounds like a great candidate! Nice!!!
Sounds like an exaggeration, honestly. Maybe you meant 1/8"?
Great video
Well this is the exact thing I was looking for I'm just starting and know what to do but am pretty poor in terms of making them
Thx for watching, Some steel pipe with a solid base welded on will work too, dont use galvanized tho! :)
good job!
They get the job done! :)
wonderful video and description. did you cast that grinder handle bar yourself ?
nope, made from materials from a baby carriage someone was throwing away
thanks this helped! :)
I have a new & improved video on these uploaded just 2 days ago :)
Can you do brass with that in coal forge from a campfire with a blower into it. I want to try that have lots of brass.
I subbed.
Might be tough but worth a try!!!!
I know it’s an old video, but where could I find old/depleted fire extinguishers?
I got a stainless measuring cup set that has worked quite well for aluminum.
What would happen if i added salt into the mixture of steel making it feel like putting salt on your wounds?
Would the crucible grave yard be slightly less populated if you were to rotate the crucibles while inside the furnace so the propane burner isn't always focused in the same spot every time? Maybe rotate the crucibles by 90-degrees per melt?
Every little bit helps! Great suggestion! : )
Thank You Loader. I'm not free yet but I can't wait to be on my own. Now I need to know how to make a poor mans furnace and would a small propane tank or a large one when it comes to metal aluminum?
I have a video on how I made my furnace
My extinguisher has a plastic cup on the inside should I burn it of or scrape it out
I have never seen a plastic cup in one.....it needs to be removed somehow. I would avoid melting it out as it may leave plastic residue
Haven't gotten a fire extinguisher but used a prpane cannister-chbby fat on for a lantern. Bottom of it slagged in my coal fire tonight after one use.
I have never used charcoal fires or propane canisters as crucibles. You may wanna try a welded up piece of heavy gauge pipe (w/flat bottom) as a crucible as charcoal fires get extremely hot once air is introduced
Haven't welded since shop in HS. Be 50 in a week. Might be something I can find someone to do locally.
It was just a thought....I would weld up your stuff for ya if ya were close by! (Tampa, FL)
Used to live over in Lake County but I'm up in N.C. now, appreciate it tho.
K, offer stands for anyone living nearby! :)
Can a crucible be made out of the little gas tank in the background i have a couple left over of those thats why im asking thanks for the help
Can i use a overflow tank with kaowool to make a smelter?
Will an old empty propane tank work too?
sure, the small ones will work as well, not as thick as extinguisher tho
I thought that was pretty neat
Not pretty but it works!
about how many firings can you get out of this kind of crucible? I'd be using it in an electric furnace to melt aluminum
Given the gentle heating nature of an electric kiln I wouldnt be surprised if you were to get 15-20 uses out of one of these...possibly more...speculation on my part The harsh environment of a propane burner heating the crucible unevenly is what causes these to fail prematurely. The most I have gotten is around 12 melts but usually 8-9 is the long term average Please share your results if you use one. Thx
I love your frugality. So, what can you do with the top of the extinguisher?
I used one the other day as a funnel when I changed my oil in my truck! LOL :)
+Makin Sumthin From Nuthin That's the first thing I thought of, a funnel. Good stuff, thanks for sharing this.
Thank you for watching Dave, consider subscribing if you haven't already :)
@@MakinSumthinFromNuthin could you weld feet on the part you cut off and use it as a crucible if you put a pipe plug in it or welded something over the inlet?? just curious
Great Video man, thank you for the demonstration...
Thanks friend ~ Richard
If I was trying to melt a little bit of gold like 5 or 6 grams can you use half inch black steel gas pipe cap as a crucible? And if you can will the gold stick to the steel cap inside?
You could but not recommended, use a cheap, small ceramic or graphite crucible for precious metals. It will likely stick unless you use plently of borax as a flux
I have a extinguisher that feels like it has a rubber or a plastic covering so I'm not sure if it's aluminum because the magnet doesn't stick
I found a 40x40 mm diameter graphite crucible online, what exactly is the size of a 40x40mm diameter crucible? Is it the size of your hand or what and what can you possibly put in it to melt?
25mm is about an inch....so its rather small. Those are usually used for precious metals as they wont hold a whole lot
Why not a smaller steel inside a larger steel one? Would the inner one last longer?
Good to know, thanks
Thanks for Watching Grant
Interesting rig for the angle grinder @ 10:20 Maybe it is common but I see it for the 1st time. Is it comfortable for precise cuts? Isn't your left hand in the line of sight?
best thing I ever made, is awesome
How much does grinder cost? And welder?
grinders are cheap, used welding equipment also very reasonable
pretty cool
+Louise Alcott Thank You! Send pics of yours if ya make one!