My Portal Gun Build

Hey guys. So I've been working on this for a week now, and I have 4 days left to complete it. I'm only 15, fairly new to prop making, and I've been rushing through it, so take that to mind. Any constructive criticism, advice, questions and/or positive comments would be greatly appreciated. So here we go!

This is my main barrel. I'm waiting for my dremel, which my dad should bring home today, to sand down some pieces so I can add on the oval vent thingy mabob. The first two rings were built up by a couple layers of tape, and the second ring is covered with a cardboard tube I had. The 3rd larger ring is carved out of some foam I had lying around.


This is my front handhold. Made out of plaster strips. I used an old seltzer bottle with layers of tinfoil to make the base for it.


This is the large top white piece. The outside is 2 layers of paper mache, then a layer of tinfoil, followed by a few layers of plaster strips. The plaster was an afterthought, and because I thought it would warp the paper-mache, I kept the tinfoil layer that I used to separate the piece from it's base. The base for this one was a child's bike helmet. It was the streamlined style, not the regular curved one.


This afternoon I sorted out how I'm going to do the lighting. I bought two flashlight/glowsticks/whistle things from my local Target. One was blue, one was red/orange. I took off the casing and the plastic tube to leave just the battery, circuit board, and LED assembly. Then I took an old baby formula graduated cylinder from my basement, and wrapped 2-3 layers of clear scotch tape around the whole thing. This was to carry and diffuse the light. As soon as I get my hot glue going, I'll glue the two lights into place giving me a nice orange and blue portal effect.


And that's all I have for now. My dad just walked in with my dremel, so hopefully I will have some updates for you later tonight. Unfortunatly, because this build is so last minute, it's not going to look the way I want, but it'll be enough to impress my friends. I think I will do a rebuild sometime in the future. So guys, what do you think?

off to a good start

This is one I've though about. I'm looking forward to seeing how it comes along!

Got another update here for y'all. Added the vent mabobs and cut open the tube for the window for the lights. I'm going to cover up the bottom, and install the lights later tonight if I have time.

Coming along! I'm building one myself. Using some of those Pepakura files as a reference might help you out, too.

ThrowingChicken said:

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Coming along! I'm building one myself. Using some of those Pepakura files as a reference might help you out, too.

Yea I would, but I'm on a Mac, so no pepakura for me. Im using an instructable I found to help me along. As soon as I can, I'm going to work on a quality rebuild of this, because I'm rushing through this one.

Looking very GOOD!

OK so here's my last update of the night. Tomorrow is my last day to finish this, and I don't think I'm going to be able to do the claws with the tube things in time for dress up day at school, but hopefully for trick or treating. But here is what I've done just now:

That looks great. I remember having so much fun with this game. Never thought of building the gun though.

Woohoo! I finished! So I didn't put on the 3 tubes and the 3 claws but no one at my school is going to notice. Don't tell! SHHHHHH!!!!! I'm pretty proud of it, even though I notice every little mistake in it. What do you guys think? Was this a triumph?

Not too shabby, especially for a rush job. I look forward to seeing the rebuild.

Great work please check out my thread I'm building a portal gun too and I'd love some advice: http://www.therpf.com/f9/portal-gun-...ld-eva-183434/

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