Lets take a look at the world of 3D Printing as I use the process for the first time. The article will show the process from the initial 3D model, to 3D print, to cast pieces.
A number of years ago I built an Earthshaker gun emplacement. I quite liked how it turned out but alas (as with so many projects) it got shelved. The model was later broken up and any plans for a battery was put on permanent hold. The prospect of making so many curved walls was one factor which saw the projects demise.
However not long ago I did a blog post about the emplacement and the itch began anew. Since the initial emplacement I have been doing some casting (including Gun Turrets) and I thought this would be a good solution to solving the problems of building all those curved walls – make one, then cast. While reducing the work it would still mean building one curved wall. I didn’t want to cast the wall in one large piece so I would have to make a wall section then build the emplacement up from cast pieces. While reducing the amount I would have to build it would increase the need for accuracy while making the wall section.
|Once undercoated you couldn’t
really tell the two materials apart.
24 hours after pouring the rubber I started casting the walls in a casting plaster. While being a lot cheaper than resin the main reason I went for plaster was the ability to easily carve battle damage and symbols into the walls. I also had plans to cast rebar into the walls to be exposed later with battle damage, not something easily done with resin casts.
|Detail showing the rebar
and a Chaos star carved into the plaster
|Some of the ideas I looked at doing.|
|Making the pieces hollow reduced the cost.|
|The plinths were done in plaster…|
|…while the plates and rebar were done in resin.|
|A wall panel with the new cast rebar inside.|
|Some cast mounting plates placed
in position on the wall and plinths.