How to make a Portal Gun

Step 5 Getting tricky

The next section of the gun is a bit more work. It isn't a straight cylinder anymore but an oval which was about 130mm on the curves and 30mm on the straights with the 75mm hole in the centre of the top. Two identical shapes were cut out with a router from 6mm plywood and then wooden blocks tacked in between with nails to get the right thickness.

Slide it onto the barrel and hot glue it to the foam ring and the barrel. Lots of hot glue to hold everything together.