How to build a foundry out of a propane tank in under 5 minutes: back yard Foundry
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- Опубліковано 20 лют 2020
- This is one way to build a foundry out of a 20lb propane tank.
I got my supplies from Smith-sharp fire brick supply in Minneapolis.
I cannot recommend any sources online because I didn’t use those products.
I used Mizzou refractory cement. It’s the strongest you can find. It was $50 for a 50lb bag where I got it at Smith-Sharp Fire brick supply.
In the video I used z-wash. If I was going to build it today I would use greenpatch-421
Good show! It's great to see a forge being made with someone who thinks about safety!
What ?
He screwed up...
@@brianreeves1003 How so?
I didn't realize there is a safety valve to prevent propane from leaking if you open it without a hose. But no boom boom and no flames and it's now full of water. Thanks for the video.
Great tip on purging the propane tank, thanks 👍
As an alternative to refractory cement, you can use a hexagonal kiln shelf from a pottery supply store. (Or get a used one from a local potter.)
Nice job. I'm working on something similar. A 40 gallon pressure tank, cut the same way, similar hinge, but using aircrete for the refractory. Finishing today, taken several pours, built my own foam gun. Using water glass for finish coat. Intended for forging , and foundry. Gas nozzle assembled and finished, tested. It's heavier than I wanted. It's mounted on a cast off heavy duty barbecue grill frame. Thanks for sharing.
Hope it works for you! Good luck!
@@lundgrenbronzestudioswhat kind of regulator do you use ? Will a regular grill regulator work or not release the volume of gas needed?
The rachet strap and tree idea is a very good one
Thank you for the video after watching your video (and a few million more) I built a furnace and have been having a blast now for months!
That’s wonderful!
Great video. Thanks for taking the time to film it and put it out there!
just found your channel, definitely going on a binge. you dont see to much melters cast large figures and thats what i plan on doing.
I like your level of safety points that you share in your every video. Gesture for the importance for Mask for the ceramic insulation is cool
Did the same took me a day… nice to have all the things handy
Simply outstanding!👏👏👍👍👍
When you use proper tools the jobs goes smoothly. EXCELLENT VIDEO!
Love your method for removing the valves on those things. :-)
Somebody buy this man a plasma cutter
Is that a challenge?
Very well done.
When you use kao wool you need to seal the sides. Its essential fiber glass and you inhale small particles. IforgeIron has information on this.
Great! Thanks for showing.
Great build! I'm going to build one like that too very soon 😁👍👍
Same here! All my scrap is taking up too much space lol!
Did it work?
@@ilikewaffles3689 it defenitely does! I have some video's about it on my channel😁✌🏻
Love the safety tips
cool easy to understand build
I saw some empty bottles cheap on fb marketplace I’m gonna give this a go thank you brother
Thank you
Great vid!!
Great video
Thanks!
I have saved up quite a bit of brass and copper wire I have friends who owns a well known locksmith shop and the other one of the top cable companies in the United States they saved all the brass and copper for me so I have close to 400 lbs of just brass I'm going to use your video to build my foundry
It’s been working well for me. I went back and made sure I coated all the wool with the wash. You don’t want any to be exposed. In the video I left the top uncoated. Im sure improvements can be made but so far it’s been working for me.
Perfect
2:41
so i let that sit for a few days
yep... five minutes
😆
haha yep
Great video! Where does the burner/torch part come from? And what is it called?
Amazing
Step by step AWESOME PROJECT which does NOT require a ruinous investment. You've got all it takes to be a project manager = Concise Precise & to the point. May I suggest using a fire-extinguisher as a crucible ?
Fire extinguisher crucibles dissolve into the molten metal and don’t last very long. Clay graphite crucibles are a better option.
Do you have a list of all the tools, parts and any associated items to gather before beginning the project?
I have found your video to be the best and above all, easiest to follow along.
Would you be adverse to personal communications wherein the inevitable potential of unforeseen issues and their questions might be resolved by our collaborations?
Outstanding
I still use it and it still works great.
Best deals on top quality funnels!...
How big of a crucible can you use in a foundry over than size?
What size crucible would a furnace of this size hold? Looks like a #6?
Love the design, I'm making one now. I do have a question for you about your refactory bottom, did it Crack at all? I had to pour it twice. First one Cracked and I tipped sideways to get debris off the top and it fell out in pieces. 2nd one I welded a piece or rebar on the bottom to give it something to bind to, and its starting to Crack! Still curing will see how bad it cracks
I used Mizzou refractory wich in known for being very strong. But I also made sure to heat it very slowly so the water inside was driven off slowly. Even if it is cracked though it shouldn’t be a problem. It can just sit there can cracked. I’ve never flipped my furnace upside down so I’m not sure what would happen if I did.
Good.
I have an old propane tank that I'm planning on doing this to, also. I just can't seem to get enough leverage on that valve to twist it. Guess I need longer pipe.
Yeah. Strap it down good and get a longer pipe. It should come off with enough leverage!
@@lundgrenbronzestudios I used a 4 foot pipe and I Got that valve off! Thank you, brother!
I'm wondering, how did the hinge hold up, and would you change anything? I'm still assembling mine and think I might have to weld the hinge and also weld some handles on?
Dude that was so cool! (or hot)!!🤘🖖💎
Where did you get the burner
Great video!! How much or little cement do you i could get away with? A 50lb bag at the store is almost a $100 they have 12.5lb bags for lot less. Do you think 12.5 lbs will be enough for the bottom and maybe the sides if I don't make it to thick? I'm on a real tight budget. Thanks
Well I don’t know for sure but I think 12 lbs would be just fine. As long as it’s refractory cement and can take the heat.
Im doing the same thing and was wondering what size crucible you used
I use a #4. 8 kg graphite crucible. It seems to be a good size.
You should have left the tank full of water when you cut it.
Gas remains adhering to the metal surface and is released by the heat of cutting and welding.
Could you melt copper with this setup or would you need to do some more work to be able to get it up to temp?
I melt a lot of copper with this furnace. It depends mainly on how powerful your burner is.
How big does the burner hole have to be? I made it slightly larger than the burner diameter and my burner goes out fairly quickly when I add the lid. I am assuming that my burner hole is too small. Any guidelines? 1.25x, 1.5x, other, burner diameter?
The burner hole shouldn’t need to be much bigger than the burner. I’ve completely sealed mine with ceramic insulation and it works just fine. I’ll tell you where you can go for help. “Backyard metal casting and foundry work” Facebook page has very knowledgeable people who can solve pretty much any problem you have.
great video! but how was that 5 minutes?
You said that the burner was a one inch burner. Is that an outside diameter or inside diameter? Also so while i was reading the comment, apparently most people don't read the comments before they post a comment, I think I saw that this fits a number 4 crucible. Is this correct.
So if you wanted to build one double the size would it only take 10 min?...
Jk,.. I am curious though if it would be useful to have one about 4 times the size? Or would it make casting difficult?
It just makes things more challenging. Bigger furnace means heavier crucibles, so you might have to do a two man pour. Get big enough and you need hydraulics to lift it. And those foil suits to repel the heat. But you could make one out of an old keg or hot water heater and that would be ok.
Four times the size of course means four times the volume. Otherwise don't contemplate the dimensions being increased four ti .mes cos it means a huge volume increase.
Nice harbor freight grinder lol. I have the same one
Best $10 I’ve ever spent!
@@lundgrenbronzestudios you can't beat it. It outlasted my Dewalt. Go figure lol
I realize this is an older video, but where did you get the bag of refractory cement and the ceramic wool?
I got it at a local fire brick store in Minneapolis.
Apart the difference in weight, what is the difference between ceramic insulation and refractory cement? If I don't care about the weight could I make a furnace only pouring refractory cement into the tank and having the same performance?
No. It’s not the best idea to do that because the cement is such a “heat sink”. It soaks up the heat and takes so much longer for for chamber to get up to melting temp. The time and extra fuel used each melt isn’t worth it. But technically you can do it that way. I just wouldn’t recommend it.
@@lundgrenbronzestudios It was a mere hope. Here, the ceramic insulation is freakingly expensive... -_-
oh, well... maybe a good compromise would be cover the ceramic insulation with a coat of refractory cement and make the chamber as small as I can? It should reduce the "heat sink" effect... 🤔
@@TitusGalliusMontanus yes that is an option. I like to coat my wool with “mineral Z wash” that’s what my local fire brick store calls it. Green patch 421 works well to coat it too. But still you want them to be thin. I’ve also seen people slide in a cardboard cement footing and pour in refractory cement in the space between the footing and the wool. That’s another way to do it. In the end there are many ways to get it to work. It’s just a question of what is best.
Do you know the length of ceramic fiber needed to go around the inside of the tank?
Diameter of the tank times 3.1415 plus a tiny bit more to make sure its all the way around
@@zacharyj6465 I didn’t have a tank yet and was purchasing supplies. If I had the tank measurements finding diameter would have been as easy as pi. I just bought lots of extra ceramic fiber. I also ended up building my furnace with a stainless steel 1/4 barrel keg. Turned out great and melts aluminum in about 1/5 the time my old one took.
Found you thru the FB group! I am looking to build this exactly like yours. Can you help me to identify the exact parts?
1. The 1" burner - Where to get it and how much?
2. The refractory paste - Where and how much?
3. The ceramic insulation - Where, how much, and how many linear feet?
Thanks in advance!!
Griz Lee this is the burner that I got. I like it. Propane Burner For Propane Forge (Stainless Steel) Knife Forge Furnace Foundry Raku Kiln Melting Furnace Blacksmith Tool Pack Includes Valve, Hose & R www.amazon.com/dp/B07HB1FHCK/ref=cm_sw_r_cp_apip_w2XN8GxM4cjxg
Griz Lee as for refractory cement I bought a 50lb bag for about 50$. You can use only refractory cement if you just put a tube in the middle and fill the tank with about 2-3 inches of cement. That way you wouldn’t need the ceramic insulation. But make sure it’s rated for over 3000 degrees if you do. As for how many ft of ceramic insulation? I can’t remember but you will want the higher rated stuff. I think mine is rated for 2800 degrees, and you will need enough to fit the circumstance of the tank, plus the width of the lid.
I bought mine by the foot at a fire brick store. If you don’t have one you will have to by a roll of pre sized packages. So just pick one you know will have enough.
hi how much dose it cost to build one of this . thank you
Can't you buy one that size for a couple hundred on up
Hell yeah buddy
Where can a fellow order the gas burner already made
Sick idea about mounting it to a tree! here I am scared racking my brain?
Can it melt steel? I saw someone make one with oil fuel and it wasn't hot enough to melt steel.
Nope. This one isn’t hot enough for steel or iron. That takes some know how to get a furnace that hot. I don’t know how.
@@lundgrenbronzestudios 😥
top border of the forge and bottom of the lid? fabric dust would go everywhare if you do not paint them also :D
I did end up coating them as well.
It was the smoke,not CO2
Tool me 5 minutes just to fill my bottle with water 🤣
🤣🤣
He meant the vid is 5 min
@@blackhat9062 🤦
🤣👏🏻 legend
When you’re a knife thrower you don’t need trade skills am I right 🔪
I bought that same tank at my local metal recycling facility. I went to ask about them. The guy at the window told me to go pick out one and have someone weigh it. Most of them didn't have the valve. That's one step I don't have to do. I ended up paying a whole $3.
That’s even better!
I used satanite to glue and coat the fabric. But cool.
How hot will it get?
Over 2000 degrees F
I put a lit propane heater in my room and let it burn for 8 hours, and it never set my CO alarm off.
Where did you get the burner and what is the name and cost?
It’s a forge burner I found it on Amazon for $100. But I’m not sure they make it anymore. Ask the maker of any forge burner the size and model you need and they will direct you to the right one.
@@lundgrenbronzestudios Unfortunately I'm living in Brazil now and nothing is simple to find.
@@aero926 you may need to build your own. I’ve never made one but I know it can be done. There are waste oil burners and propane burners. And the simplest way is to use charcoal and a blower.
@@lundgrenbronzestudios I live in a third world country Brazil. Thanks for the obvious info but no help here
@@aero926 sorry to inconvenience you with my response. Good luck.
How much does a burner cost
Depends on what you get. I got a nice stainless steel one for $100. You can find them cheaper and you can build them much cheaper yourself if you are comfortable with that kind of thing.
I was under the impression that the ceramic insulation that causes lung cancer and all sorts of other bad juju had to be completely coated, especially on the sides where it had been cut. The idea being that the fibers that can float around are on the cut edges more than on the factory cut sides.
Yes you are right. I did since coat the edge. Maybe I should add a note in this video.
could i just use a fireblanket or no?
You can but the dust coming off is toxic and it won’t last nearly as long without a shell.
fair call thankyou kindly!@@lundgrenbronzestudios
I have a helium tank were get insulation and how make melting pot
You could do the same thing with a helium tank yes.
Were do I get the insulation from
What's a foundry?
A foundry is a place that melts and casts metal. This is a furnace for a foundry. But a lot of people call the furnace itself a foundry by mistake. I should have referred to it as a furnace.
List of materials for foundry
5 minutes? Yea right! This build would take me at least 9 minutes!
I guess I should have made the video 9 minutes long instead of exactly 5 minutes.
@@lundgrenbronzestudios 😅
I Fill tank with water, then cut to top off. I’m no safety freak. As you were sir.
Took me 30 mins just to get the cement from Home Depot
How long did it take you to watch the video?
Just a small correction: you built a furnace, not a foundry. The foundry is all of the other tools, supplies, and space you keep your furnace in.
Has a carbon monoxide monitor what a fkn legend
i am so doing that
i went a bit mad with mine... overkill? intended for doing a #16, iron... so yeah. bit big. ar1650, 1800C peak temp. wee. only got a #10 so far.
made a heat exchanger, preheat the air before it enters. gets pretty toasty. saves a hell of a lot of fuel. takes a while to heat up though as im not pushing it. gotta change my oil feed to a drip.
ua-cam.com/users/shorts_B2yg0jPVEk?feature=share
He very hamsome😂😂
2:08 le yeet
Good video but what’s the 5 min. Thing about
The video is exactly 5 minutes long.
hey so what size hold did you drill for burner
You need a news watch
What is a news watch?
I’m guessing no funnel 😂
You could of just used a hammer to get the valve out. It’s so much faster than ratcheting it to a tree lmfao
Hulk smash!
No, you can't smell propane. You can smell methyl mercaptan...
Good to know.
The video is 5 minutes.
Clearly y’all gotta pause the video for a undetermined amount of time to complete that step.
All these folks talking about 5 minutes lol
😆
Cutting blades are made of carbon
In under 5min...
under 5min of video not work!
Thumb up tho thanks
I like the tech, but 5 min? 🤔
The video is 5 minutes.
man almost killed himself trying to make
this video
😆
Surprised you are calling it a foundry. It's a furnace. You yourself made that distinction in another video. Maybe this video was produced before that one.
Long before.
LOL, "5 minutes", ha ha😂Video length? BTW, my foundry looks similar.
Yes it shows you how to build it in a 5 minute video.
@@lundgrenbronzestudios I saw some of your newer videos. Your foundry is still alive and in use 👍
Boop
My guy...why not just drill a hole in the tank to empty it completely? I do it that way every time and it seems like a lot less effort than what you did lol
That might have been simpler.
Explosive idea...
i dont know why you would say it took less than 5 minutes that is obviously not true
How long is the video? You now know how and it only took 5 minutes to learn.
where does the 5 min. come in................ ha ha ha
How long is the video? Now you know how to make it and it only took 5 minutes.