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Building a Portal Turret with motion controlled audio and lighting

Step 5Making the Molds - Arm Panel and Gun Box

Making the Molds - Arm Panel and Gun Box
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This section is going to be much shorter since the arm uses the same exact techniques used on the main body.  The only big difference between this mold and the body is that the central seam of the arm is not flat.  I used a thick card stock for the curved part of the arm.  Everything else for the arm is the same.

Since the gun box is square the mold for this will be really simple to make.  I first made an MDF box about 1/4 inch bigger then the gun box and molded the outside of the gun box.  After this set, I flipped it over and poured rubber into the back of the gun box to create an inner mold.  By doing this I can cast a thin walled box so I still have room for the electronics that need to go inside it.

The last image shows where I cut out the holes necessary for the various electronic components to be installed.




Materials used for this stage
Foam core
Acorn nuts
oil based clay
Smooth-on Rebound 25 silicone rubber
Thi-Vex II silicone thickener
Smooth-on Plati-Paste
Mold release agent
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1 comment
Sep 20, 2011. 8:36 PMmonsterbuddy10 says:
This is sooooo awesome, I am going to have to make this!

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Author:CitizenSnips(Kronos Props)
I'm a 28 year old Nerd working as an animator in the game industry in Los Angeles. When I'm not in front of the computer you can usually find me building video game related props in my garage.