Fortress Guns

[floating white bear]

Started some work on some large fortress guns. These would be 11 inch or so Rodman guns on "metal" carriages.

Also finished off the construction of the 30 pound Parrott.

Regards, Rob.

http://floatingwhitebear.blogspot.ca/
http://www.flickr.com/photos/floating_white_bear/

[carlos marighela]

  Fantastic stuff.

[pocoloco]

Fantastic stuff.

x2

Really nice craftmanship. 

[Michi]

Most impressive scratch building!

[OSHIROmodels]

Nice and clean, big guns, what's not to like 

cheers

James

[floating white bear]

Some new pics.  A bit of showcard board is used for a jig to set the wheels at the corrrect height for the gun position.   Regards, Rob.

[OSHIROmodels]

Keep it coming 

cheers

James

[Constable Bertrand]

Very tidy setup! 

It looks very detailed and comes with very clean lines. Nice work!

[S_P]

Great bit of work there- impressive.

[floating white bear]

Basic structure is just about done here. The lower "X" support is not historical but adds a lot of strength to the models. Also shown the gun barrel is being moulded.  It was supported by frame of thin plastic and latex painted on in layers. Cheescloth and string are soaked in the latex and added to stiffen the mould.  I hope to be able to squash out a couple of barrels, either in Alumilite or epoxee.  Regards, Rob.

[OSHIROmodels]

Interesting way of making a mould. Can I ask why you've done it this way?

cheers

James

[floating white bear]

I only need two more barrels, so this is a cheap and easy way to go. The triangular 'webbing' at the breach will allow the upper (when pouring) part of the mould to expand and flex to let the larger portion of the barrel break free of the mould. The muzzel will be free of any mould lines.  The cheescloth and string add strength and stiffness to the mould without affecting the flexibility. The cured latex is very flexible but does not stretch and will tear easily if not reinforced. I also happened to have a tub of liquid latex on the workbench so I thought I'd give it a go.  I have made two sided moulds in latex but they are finicky and hard to get alligned when casting. Stay tuned, this just may work! Regards, Rob.

[OSHIROmodels]

Very interesting and certainly makes sense from a limited run point of view. Hope it works for you 

cheers

James

[former user]

interesting technique

I wonder why You don't make a simple and cheap two sided plaster mould. Should be enough for a simple columbiad barrel....

[Sterling Moose]

Ingenious!