Step 3: The main barrel

It all starts with the barrel of the device. This measures up to a cylindrical tube 75mm outer diameter and about 300mm long. A decent bit of wall thickness helps for stiffness but isn't critical. Home drainpipes are just around the right size if you can get some. I didn't want to spend the money so had to use a toy plastic tube which I had to thicken up with several layers of newspaper and glue plastered on. I also mixed some black paint into the glue to save some painting effort later.

Everything is then built onto this barrel, starting at the front. Cut out a suitable sized piece of foam and hot glue it around the barrel to build up the shape. I used an old exercise mat about 8mm thick which was easy to cut with a scalpel but also meant it damaged easily and deforms if in contact with the glue gun nozzle, so be careful! Shaping the front piece of foam is done carefully with a scalpel, it'll get tidied up later.
<p>how long did it take u to make this</p>
If it is okay with you Mr. is it okay you give me the portal gun you have right now?<br>
This cakes no lie!
The cake is a lie!<br>
<p>right its not #minecraftFTW</p>
The cake itself isn't a lie. its a lie that GLaDOS will give you the cake
cool as hell i made mine with your desine exept with pvc insted of wood it cam out perfectly
came* <br>
<p>Nice! this must have given you a lot of lemons. but when a project gives you lemons don't make lemonade! burn somebody's house down! WITH THE LEMONS!!!!!!!!!</p>
I agree with ya. When life gives you lemons, don't make lemonade, make life take the lemons back, get mad, I don't want your damn lemons what am I supposed to do with these!?!? I demand to see life's manager, make life rue the day and thought it could give Lance Newman lemons, do you know who I am?!? I'm the man that's going to burn your house down, with the lemons, I'm going to invent a combustible lemon that burns your house down!!!!!!!!!!!!!!!!!!!!!!
How much did this cost?
&pound;10-ish? A lot of it comes from found materials like the can, paint and foam. The main purchases were the chicken wire for the shell and the tubes for the body. It's really more or a Blue Peter scrap build than a professional prop. Make the best with what you have.
the cake is not a lie but on portal 2 it is
Son, you made a nice Gun! Your use of metal mesh (metal Lathe) was brilliant! I'm thinking you may want to use 'Bondo' instead of paper mache in the future. With a bit of practice and experimentation, you'll find you get a much more durable part and a smoother paint surface using bondo. Also head over to your local DIY Center and check out the ABS and PVC Plumbing pipes and fittings...Study them and mess around with them a bit! Awesome amount of possibilities! All and all. pretty nice!
i want it
can i buy?
This is awesome! Here's mine:
thank you for making the aperture extra-compact hand-held portal device
At this point i'd recommend putting Bondo on there ,bondo is amazing for this type of work. you can sand it to be incredibly smooth then all you need to do is prime and paint it.
Looks like a camera I'll make this and fit a camera inside.:) <br>
I'm not boing rude but the white bits are not smooth so u could use some white flexable fome ?or something like that
Just wanted to say thanks for this tutorial. I made my own portal gun following your instructions and it turned out pretty good. Keep on making tutorials like this one. Detailed pictures of my portal gun can be found here: <a href="http://terno.1g.fi/kuvat/Aperture+Science+Handheld+Portal+Device+DIY/" rel="nofollow">http://terno.1g.fi/kuvat/Aperture+Science+Handheld+Portal+Device+DIY/</a>
what is the clear plastic cylinder made of?
Umm... Plastic?
what do you mean? is it not plastic?
What he meant was that you said- &quot;What is the clear PLASTIC thing MADE OF&quot; which made no sense, because you just said the answer. It's like saying &quot;Hey, what's your name, Joe?&quot; I'm just stating that, I'm not trying to be rude in any way.
I meant like a water bottle, a sheet of plastic rolled up, etc
OH, O.K, sorry.
A sheet of clear polypropylene (PP). 700 microns thick I think. Available in places like Paperchase or in the packaging of large gifts, like a large photo frame or an ornamental duck.
can i use a plastic bottle instead?
Absolutely. It's a different material (PET, or HDPE) but it does the same thing, it's clear plastic. If you're happy with it, then go for it.<br><br>Interestingly, bottles made from PET like soda bottles, can be used to purify water if the bottle is clean and the filled bottles are left in the sun. Called &quot;Solar Water Disinfection&quot;.
This is confidential information. We will be needing your version of the Portal Device...... Please.
No Please donate your handheld portal device to Black mesa East to help us defeat the combine. (a large reward of your choice will be provided, versus the cake of aperature which is obviously a lie) <br> <br>PS GORDON PWNS CHELL
could i posibly buy one from u i would pay well
Can you upload a picture of the gun held in your hands? I want to see how big it is in relation to a person<br />
I'm afraid not, it's in irreparable condition now.&nbsp; It was 500mm in length, which in retrospect is too large. &nbsp;Resizing the original reference image to 400mm in length would probably yield a more suitable size for a person of Chell's size.
oh no!&nbsp; what happened? <br />
i don`t care<br />
who cares?<br />
Chuck Norris.
good idea
this was a triumph.<br />
Im making a note here:HUGE&nbsp;SUCCSESS
It's hard to overstate my satisfaction.<br />

About This Instructable


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Bio: Completed a masters in mechanical engineering and then realised I didn't want to be an engineer. So I'm a freelance propmaker and costumier ... More »
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