I followed your progress on another forum, but never saw the "action" shots.
That is very impressive. Congratulations on a job well done. And great photography.
You're in South Africa, right? I'm surprized that American walnut would be available there. Are the beer cans those big pint-sized ones? Here in the US they are usually 12 ounces (.35 liter).
August 24, 2007, 11:35 AM
Years ago - 1960s, as I recall - I read an article in a US gun magazine (don't remember which one, but I think Gun World) about building a black powder mortar. The barrel was made from a section of truck axle housing, and I don't remember how they closed the bottom end.
It looked fun then, it looks fun now. Maybe next year.
Thanks for sharing, Heinrich. But now you've made me want to buy a bigger metal lathe than I was contemplating...
August 24, 2007, 12:51 PM
Cool! I keep meaning to buy one but need to wait till I stop moving and have some room to enjoy it.
Thanks for sharing!
August 24, 2007, 04:25 PM
Thanks guys, it was a wonderful experience building it.
Yip, I'm in SA, and we can buy most types of wood, off course imported hardwoods are much more expensive than most local hard wood.
Yip, it is the 350ml cans that I am filling with concrete.
I've been considering making one that can shoot a 5liter paint can...
August 25, 2007, 02:43 AM
Welcome to THR!
I really appreciate your sharing with great pictures about building your mortar, from start to finish to firing.
How neat! :D
August 26, 2007, 06:28 PM
whats the barrel made of ? it looks a lot like aluminum to me. if it is your a braver man than me fireing it off useing an aluminum barrel.
August 26, 2007, 09:30 PM
Aries- check the first post Used EN19 Steel, (4140)
August 26, 2007, 09:58 PM
ah yes didnt notice that. thought i looked all the way to the top. but i guess i missed the one without pics lol.
i bet that cost a ton of cash. 4140 isnt cheap.
August 27, 2007, 06:55 AM
That was Type T steel, which is suppose to be slightly tougher than the standard one.
Enjoyed the project.
August 27, 2007, 07:06 PM
did you heat treat it ? or leave it alone ?
case hardening would be good on it. leaving the surface hard, and the center of the steel softer.
August 27, 2007, 07:32 PM
Very, very nice. Thanks for the story and the pics.
Just curious, what does a chunk of steel like that cost?
August 28, 2007, 04:36 AM
I have had the steel bead blasted, and then heat treated. Gave it a rough finish.
It cost me equivalent to $150.00
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