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Jeremy Blohm

Very simple beginners propane forge!!!

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Jeremy, did you use 1" or 2" thick Nutec max wool hps, and what size is that Freon tank?

Thank you,
Bob

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Actually it is 1/2 inch wool. And im not sure about the freon bottle. I will find out more about the bottle tomorrow. I know it was one of the smaller ones my friend has. I used 1/2 inch wool because i won and entire pallet of the stuff at auction a couple years ago.

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Ok, sounds good, thank you, I'm going to assume you doubled it or so, correct, it looks a lot thicker than just one layer?
I wish I could find stuff cheap, here in my part of Florida everything is hard to come by, have to order almost everything on-line.

Thank you,
Bob

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3 layers i believe with 1/2 inch of kast-o-lite 

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That always make things more difficult when you have to order everything. A pottery supplier is always a good place to look but there definitely isn't one of those in every town.

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Starting to build another one of these. I will post more pictures soon.

20180712_123502.jpg

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This is going to be interesting 

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Well i had to run home for a little bit for the wife to go to the dentist but i will get back to the shop in a little while. I could have gotten it done but my dad had me helping him clean up the shop.

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Here it is. I used the legs from the turkey fryer to hold the whole thing together.20180713_113550.jpg20180713_113847.jpg

flattened them on the anvil cold.20180713_113903.jpg

here it is together.20180713_122356.jpg

drilled a 1 1/4 inch hole 20180713_122402.jpg

Fired it up20180713_123459.jpg

Heated up a section of pipe20180713_123956.jpg

Forged a flair.20180713_124039.jpg

Made a door for the back put some thin fire brick in for the floor and put the pipe in place. 20180713_133605.jpg

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I love it and using the fryer legs was a level of frugal genius.

How long till forging temp and how fast did it cool when shut off ?

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It only took a couple minutes and the pipe was ready to flair the end. And it was still warm 15 minutes later but not like a fire brick would be.

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Very nice. That has got to be about the simplest, heat efficient, propane forge to make that's larger than a one or two brick.

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Here is a little better picture.

20180713_203905.jpg

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Im going to thread both the burner and pipe.

20180713_205336.jpg

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Im also going to cut about 2 inches off of the body of the forge.

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From the visible pattern that would seem like a good idea. Do you plan on talking half off each end?

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Yeah probably half and half. I need to figure out a simple stand for it and im going to double the insulation on the floor.

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Well i tried to weld wrought to wrought in this forge and it didnt work. I know it takes more heat to weld wrought but i figured I would try.20180724_172623.jpg

This board held up against flux way better than wool but it still took a toll on it. 

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On 1/16/2018 at 8:44 AM, Gerhard said:

I don't think so, but I'm not 100% sure.

I paid a visit to a local blacksmith a while ago, he showed me a gas forge he'd built and told me the big issue was jet size, he never could get it to run properly.  He's a young German, and looking at his shop I was not about to argue.......this is Windhoek and I'm not surprised by stuff being unavailable.....

Neels van den Berg builds them very successfully in SA, uses 9Kg gas bottles and the burners look identical to the general recipe you see out there.......assume they have their choice of jets in Joburg! :lol:

I was planning on ordering one of those in March, if finances allows, but if I can DIY that should save me about N$3000........not about to chop mine up, just waiting for prices from my favourite outdoor shop.

This is late but where can i buy propane torches amd firebrick in windhoek, because im 17 so i can't really afford a lot

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@Adriaan G last time I was there Pennypinchers in Southern Industrial had plenty, and 2 sizes......IIRC about 20/brick.

Cheapest I've seen the adjustable regulator is at Bushwhackers.....I paid about double that elsewhere....

Propane torches.....no idea.  I have 2 of those camping gas torches but that won't do for a forge.

Check my build here: https://www.bladesmithsforum.com/index.php?/topic/36704-improvised-gas-forge-build/

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On 1/12/2018 at 12:33 PM, Jeremy Blohm said:

The forge body is 4 fire bricks that can be found at tractor supply or ordered onlinehere. 

https://www.fleetfarm.com/detail/united-states-stove-company-single-firebrick/0000000249442?gclid=CjwKCAiA1uHSBRBUEiwAkBCtzZJMEfhYV6vX7HNwhz-HHXM19gjboLq8XWd9yQFLrxvlBP-qXZa04hoC-oEQAvD_BwE

Then you will need 2 pieces of angle iron 8 inches long with 1/4 inch holes drilled about 3/4 of an inch in from the ends in the corner of the V. And you will need 2 pieces of 1/4 inch threaded rod 12 inches long and 4- 1/4 inch nuts and washers.20171205_142431.thumb.jpg.eff782f8b1b399449ebdc14188cb420f.jpg20171205_142438.thumb.jpg.407351c7fddc7a7199f65374cd07d634.jpg

You will need a 3/4 inch or 1 inch concrete bit also to drill the hole for the burner.shopping.jpeg

20171205_142516.thumb.jpg.71a91434de4ad9c9ab81ed0505fc492f.jpg

And you will need a turkey fryer that is propane fired like this one avoid_a_house_fire_when_cooking_with_a_turkey_fryer_this_thanksgiving.jpg

Take the burner out20180112_114224.jpg20180112_113147.jpg

cut the end off20180112_113254.jpg1515777954434-1656187257.jpg

and then put the burner in the hole you drilled20180112_113545.jpg

hook it up to the propane tank and fire it up

20180112_113526.jpg20180112_114021.jpg

Edit: Another thing i did and highly recommend because of the extreme heat is forge a flare and attached it permanently to the forge but it required drilling a larger hole.  DO NOT. Use galvanized pipe!!!20180121_194729.jpg20180121_194812.jpg20180121_194821.jpg

DO NOT use galvanized pipe.

If anyone has any problems with this burner feel free to ask any questions. I don't care if this topic is 5 years old you can still ask a question or send me a personal message and I will do everything I can to help.

Why the angle iron? Why not a flat piece of metal? Is it about heat transference? I think I am going to try and make one. Thanks for the post  

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Angle iron used like that will be much more rigid than flat sheet steel.  Especially when you add heat to the equation.  I could imagine it becoming a very puckery situation if your forge were to spontaneously come apart during a forging session.

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3 minutes ago, Alex Middleton said:

Angle iron used like that will be much more rigid than flat sheet steel.  Especially when you add heat to the equation.  I could imagine it becoming a very puckery situation if your forge were to spontaneously come apart during a forging session.

Yep.  The angle is to hold it all together.  Read the whole thread, and get some soft (insulating) firebrick.  This makes a usable forge, but eventually you'll want a better one.  This one is just fast and cheap.

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On 1/12/2018 at 9:33 AM, Jeremy Blohm said:

The forge body is 4 fire bricks that can be found at tractor supply or ordered onlinehere. 

https://www.fleetfarm.com/detail/united-states-stove-company-single-firebrick/0000000249442?gclid=CjwKCAiA1uHSBRBUEiwAkBCtzZJMEfhYV6vX7HNwhz-HHXM19gjboLq8XWd9yQFLrxvlBP-qXZa04hoC-oEQAvD_BwE

Then you will need 2 pieces of angle iron 8 inches long with 1/4 inch holes drilled about 3/4 of an inch in from the ends in the corner of the V. And you will need 2 pieces of 1/4 inch threaded rod 12 inches long and 4- 1/4 inch nuts and washers.20171205_142431.thumb.jpg.eff782f8b1b399449ebdc14188cb420f.jpg20171205_142438.thumb.jpg.407351c7fddc7a7199f65374cd07d634.jpg

You will need a 3/4 inch or 1 inch concrete bit also to drill the hole for the burner.shopping.jpeg

20171205_142516.thumb.jpg.71a91434de4ad9c9ab81ed0505fc492f.jpg

And you will need a turkey fryer that is propane fired like this one avoid_a_house_fire_when_cooking_with_a_turkey_fryer_this_thanksgiving.jpg

Take the burner out20180112_114224.jpg20180112_113147.jpg

cut the end off20180112_113254.jpg1515777954434-1656187257.jpg

and then put the burner in the hole you drilled20180112_113545.jpg

hook it up to the propane tank and fire it up

20180112_113526.jpg20180112_114021.jpg

Edit: Another thing i did and highly recommend because of the extreme heat is forge a flare and attached it permanently to the forge but it required drilling a larger hole.  DO NOT. Use galvanized pipe!!!20180121_194729.jpg20180121_194812.jpg20180121_194821.jpg

DO NOT use galvanized pipe.

Another update: the burner should be removed from the forge aafterbecause of the chimney effect and the heat that these bricks can hold after forging can flow up through the burner and melt the hose and other parts.  

If anyone has any problems with this burner feel free to ask any questions. I don't care if this topic is 5 years old you can still ask a question or send me a personal message and I will do everything I can to help.

Pretty cool I made mine from a coffee can using sand and plaster of Paris for insulator with a weed burner and a stainless tube from an old propane heater for the burner only draw back is the insulation is soft and tends to crack after repeated use. 

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38 minutes ago, Toney said:

Pretty cool I made mine from a coffee can using sand and plaster of Paris for insulator with a weed burner and a stainless tube from an old propane heater for the burner only draw back is the insulation is soft and tends to crack after repeated use. 

Indeed.  If I could find the person who spread the idea that sand and plaster make a good refractory I'd make him wear kaowool underpants...  if I had my way, that is.  Getting plaster that hot just turns it back to gypsum powder.  The sand, if it melts, helps hold that together.  It can work for an emergency or single-use forge, but if you want to do more than flatten a few bolts actual refractory materials are required.  And not expensive.  Just hard to find if you only go to big box stores.  

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