I thought it would be fun to make a Portal gun, and be one of the few people out there to make one that looked authentic.
You have to understand that up to this point I had zero prop making experience, and my arts and crafts experience was limited to finger painting as a kid. I had assisted my dad in building projects, so I knew how to use tools, but he had designed the structure and bought the parts. If you had a list of people that you would want to make something like this for you, I would be at the very bottom of the list.
Many people have commented on my Portal gun, saying how they would love to be able to make something like it, but didn’t know how to do it. I was that person, I had no idea how to make anything prop related, but I had a vision, and I wanted to see it come to life, so I set out to create this Portal gun. I’m making this tutorial for people like me, who didn’t have the skills, but want to try prop making. If you have experience in prop making you can learn what I wish I had done differently and use that information in your own build. :P
Here is what it looks like underneath the large shell.
Here is what it looked like after I added the apoxie sculpt between the cracks, painted it over, and sanded it down.
Here is what my core looked like, sans the plastic and with the wiring.
To connect the barrel lights with the battery under the shell I ran the wires under the core.
I had an orange and blue LED running up under the shell to light the little area on top.
Everything was controlled with one switch. I could go from orange to blue, or turn it all off.
It all was connected inside the PVC section under the large shell.
I’m not the best when it comes to building electronics, so I had to get some help on a forum. You can read the forum thread to get detailed information on how I put the electronics portion of the gun together.
So there you have it! That is the process I went through to make my Portal gun. In all, it cost $300-$350, but it was a very good learning experience and I would do it again. I hope to try other props soon, or maybe doing set design or model work. If you have any questions, post a comment and I’ll try to answer it.