Fixing it in place. Footage below.
I've always wanted to make one of these, with borrowing a Go pro and having a free day i jumped to it and got into the Uni metal workshop. The main beam is some scrap aluminium which is 700mm long and 6mm thick, its got about 20, 10mm holes drilled in it to save weight too, ;) . At the other end we have some hefty steel welded up to counter the weight of the GoPro on the end. I got a bit excited with the mig welder too as you can see. I would say the whole thing is under 1kg too. so its not too bad, but is a lil noticeable with it duct taped on. i had to add a slab (yes, Slab) of flat steel bar on the back to even it out too. The best thing of all was it didn't cost a penny. haha. I plan on drilling more holes into the main flat aluminium bar to lighten it even more so i don't have to add the extra steel on, looks like its back to the pillar drill. Here's how it came out. Enjoy.