Neff Cannons
September 04, 2010, 07:08:24 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News:
 
   Home   Help Search Calendar Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Gribeauval Mortar Base Input  (Read 814 times)
Mike@Accurate
Newbie
*
Offline Offline

Posts: 2


View Profile
« on: July 12, 2006, 02:46:31 PM »

I'm getting antsy waiting for Matt to get GBO up and running. I just have to ask someone.....
Looking at the drawing George posted, I think that Cannon-Mania's 1" "Yorktown" has the metals & woods mixed up on their base.
I cropped this from a pic posted on GBO:



And this from the drawing:



I colored in the drawing. Gray & Black would be Iron, Brown is Wood and the Barrel in Bronze. I do believe the brass caps on the CM are 180° out (If they are to replicate the Iron cheeks as described in the drawing)
 My plan is to use a chunk of 3/8" steel for the base (6.25"x8.875") with notches to accept 1/8" steel cheek plates that I will weld in. I made a CNC torch table once, and I would use it to cut out the pieces. Below are images of the CNC files in a simulator window:





(The torch has a .050" kerf, so the drawings are of the cut lines rather than the outline((a little smaller))
These, along with wood cheeks and cross pieces would make up my base. I was going to inlet the cheek plates into the wood, so the sides would be flush. I plan on using 2" stock for the sides, routed and thinned to 1 1/2" at the trunions. Cross pieces at 2 1/4" would give me the overall width of 6 1/4"
Any thoughts ?  Any input will be greatly appreciated. Thanks, MIKE
Logged
Mike@Accurate
Newbie
*
Offline Offline

Posts: 2


View Profile
« Reply #1 on: July 12, 2006, 08:13:40 PM »

http://www.graybeardoutdoors.com/smf/index.php/topic,94647.0.html
Logged
DoubleD
Full Member
***
Offline Offline

Posts: 122


View Profile
« Reply #2 on: July 16, 2006, 03:58:33 AM »

The base is all cast iron and not wood and metal!
Logged
GGaskill
Newbie
*
Offline Offline

Posts: 8


View Profile
« Reply #3 on: June 13, 2008, 12:07:47 AM »

The base is all cast iron and not wood and metal!

The cheeks are cast iron but the transoms are wood, except for a bronze piece (I think) that sits right behind the trunnions.
« Last Edit: June 17, 2008, 11:49:22 PM by GGaskill » Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1 RC2 | SMF © 2001-2005, Lewis Media Valid XHTML 1.0! Valid CSS!