Coastal Mortar Replica

[Heinrich]

My apologies if this post is in the wrong Index.

This coastal mortar is my model.

 

[Heinrich]

Here is the progress on the carraige, basically the woodwork is done. I now only need to finish the where you can see the burn marks on the wood.

I used wallnut, and it took most of the afternoon to make the joints so that the beams in between the 2 rails penetrate the rails themselves.

 

[Heinrich]

This is how the barrel was born.

This one will be called Thor once he is finished.

 

[jeepwj992002]

Heinrich, that is going to be one wicked little mortar when you get done. :thumbsup:

 

[TheDoubleD]

I'm working on one of those also. My cheek pieces are going to to be cut of out steel plate. The originals were cast iron.

The bore of my tube is 3.67 inch--6PDR.

 

[Heinrich]

I've considered a carraige from steel, just too much work at the moment.

I've got a plan for to modify the trunnions a little.

 

[Heinrich]

Worked on the trunnions today, and milled the back of the barrel for the trunnion to be press fitted.

 

[HarborMaster]

Fantastic ! I am really lookingforward to this ., your Muzzle looks grand !!! not quite the average CW Coehorn., but French ? or English ? Very nice sir very nice indeed. :thumbsup:

 

[Bob Riegl]

:grin: Boy you make me regret not having finished machine shop during WWII, when they offered Machine Shop Practise as what they called "War Courses", while in High School. I have regretted this my entire life when I see the neat work being done by the skilled both here and in another field of endeavor (hobby) I am involved in. Since my uncle passed away I have had to pay people to do my machine work. Way to go---I will watch this story unfold until the day you fire that piece. :thumbsup:

 

[Heinrich]

I am not certain whether that muzzle is country specific, but I've seen it on a Belgian gun of which I have a pic in a book.

 

[Heinrich]

Ok, here be more progress. Trunnions in, and the little cup thingy is welded in place behind the flash hole.

Technically the barrel is finished, ready to be mounted on the weekend.

 

[jeepwj992002]

Looks outstanding Heinrich!!! :bow:

 

The big question is what grade of steel did you use for this project?

CP

 

[GunneyG]

I have regretted this my entire life ...

I don't know how old you are but if you can still learn anything, you can learn how to operate a lathe and a milling machine. Try the vocational courses at your local community college.

 

[Titus]

Claypipe, if I am not mistaken Heinrich used EN19 steel.

 

[rifleshooter2]

Great job. I can't wait to see some smoke and fire.

Andy

 

[Heinrich]

Correct, I've used EN19.
Thanks everybody, it is an awesome process, and shooting is going to be an great highlight.

 

[Heinrich]

EN19 is equal too barrel grade steel.

There is another one in circulation around our area that has been turned from EN9 steel which is 10 levels softer, and has been shooting for a long time. The owner measures all possible measurements on the barrel with little micrometers after every session, and there has been 0 micron change in any dimension. In fact his equipment is so fine that he has to measure the barrel at the same temperature.

 

[Titus]

EN19 is the same as 4140. :v

 

[Heinrich]

progress report on the barrel