Verschluss einer Hinterlader - Salutkanone / Horizontal Sliding Breech Ceremonial Cannon 80mm 

It is indeed very very difficult to find some blue prints. Most of our cannons have been constructed by studying videos of breeches or the original breech.

Unlike the US, sadly in Europe the nanny beaurocrats generally dislike people making DIY firearms, simply being inquisitive, or indeed any kind of independent behaviour, we should all be mi dless sheep who do what our masters in bruxelles direct without question. Which may explain some reluctance for Hermann sharing detailed plans. But BTW .. at your own risk.and do t do this at home etc.. the critical dimensions of the barrel and chamber you can take directly from a round, or better look it up I'm sure those dimensions are readily available. So your only real question is the breach, and these are not critical, on the co tray should be over engineered. As Hermann suggested you can understand how these work, and how strong they need to be (ie thickness), by just looking at a real one. Unless you are an expert in metallurgy and stress engineering etc I'd suggest you engineer your "for fun and where legal" project to avoid all stress risers and generally be over engineered by an order of magnetude. And lastly, fire it will a piece of string from far away ;-)

I believe you can find the technical data package (including drawings) of the US 37 mm AT gun M3A1 on the Gatalog. Can't link here, unfortunately.

We'll show you with the next one we build of this type

@@hermannsalutkanonen7511 thanks for the reply but i have figured it out and the extractors to some extent, trying to figure out the working of a semi automatic sliding breech now. Thanks again.

@@hermannsalutkanonen7511 actually I haven't figured out THIS PARTICULAR ONE. It would be great if you could show that, only if you want though. Thanks.

there is a cam surface between the lever and breech block. When closing, the surface of the lever is the one actually pushing in the breech block. When opening, there is a hook part of the lever that is mostly inside that pushes out the breech block.

Токарный станок может и не такое

If you have a look at our homepage you'll get some impressions on the bulding process.

It doesn't. The cartridge case is what seals, the technical term is "obturation".

so the cartrige is made out of a soft metal and as its loaded into the chamber it slightly defroms creating a seal?

@@QB3K1337 yes, otherwise the Krupp guns would be no better than the Armstrong guns that preceded them, other than being simpler to load, but otherwise they’d still have a lot of the same problems that the Armstrongs did.

This is an aluminium shell

@@hermannsalutkanonen7511 how do you make that

Yes, it's smoothbore. Otehrwise it would be considered a weapon over here, so it's just a "sound machine" ;)

Ohh thanks mate! I really love your Cannons. Salute from The Philippines!

@@hermannsalutkanonen7511 I live in the US would it be possible to make this with a rifled barrel and smokeless gunpowder?

Because we wouldn't use a blackpowder charge inside our workshop ;)

@@hermannsalutkanonen7511 ooh ok