I searched the Internet high and low for something to mount my gopro camera too, in order to shoot extremely long term time lapse footage. I had ideas of converting a trail cam box, to just attaching the camera to a tree. The latter was just asking for me to get my camera stolen.
After weeks of searching and no luck, I decided to build my own. It is not only waterproof, but secure and safe as well. here is how I did it.
Step 2: Find a Box
First I order a Pelican 1120 box from Amazon. The most expensive part of the build, but also the main part as well. (About $30)
Step 3: Find a Lens Adapter
I then ordered a 52mm lens adapter for the camera. I also went to Amazon and found one that came WITH a UV lens and a couple extra filters. mainly for protection more than for their intended purpose. (About $12)
Step 4: Cut a Hole for the Adapter
I then used a utility knife to cut a square hole in the box, small enough a to barely squeeze the adapter through so that it would snugly fit without glue. I then used marine waterproof caulk to seal any gaps.
Step 5: Drill Holes to Attach Mounting Hardware
In my situation, I was mounting my camera to a 2.5" square pipe. Therefore, I turned the box over and drilled holes into the existing mounting screw areas. Picked up a couple U bolts and slipped them into place. ($5)
You could just as easily drill these holes and mount a metal bracket to be used as a mounting device.
Step 6: Build Mounting Base
In order to mount the camera to the box, I needed raise the platform inside the box. I wanted to be able to close the lid and have the camera FLUSH with the adapter. I used a 1x6 piece of pine and cut it to fit inside the box. I Drilled the holes through the back to allow passage of the u bolts. This wasn't quite deep enough, I still needed about an 1/8" raise to get flush. I used a scrap piece of plywood that worked perfectly.
I then used the mount that came with the camera. It's the one that actually held the camera in the box attached to the cardboard box for display. I drilled a few holes and used some washers with wood screws to keep it in place.
Step 7: Cut Passage for USB Cable
Next, I drilled a couple holes in the bottom of the box and then used a utility a knife to square up the hole. All to be able to pass the USB cable through.
When it was finished, I used the marine grade caulk to seal the hole up.
Step 8: Purchase a Dummy Battery
Which brings me to why I need the hole.
I purchased a Switronix DV-GP3 GoPro battery adapter. It replaces the actual battery (which has a very short life span) it has a USB attachment and provides constant longer power to the camera from a car battery. (~$23)
In my case, I used an old lawn mower battery and put it in a battery box from a boat.
When you use this adapter, the standard door to the gopro case will not close. You will need to use the one with the rectangle openings in the top and bottom. My camera came with this extra door.
Step 9: Purchase a 12V Converter
Now, In order to hook it up to the battery, you will need a power converter. There are hundreds out there. I chose a Dual 2 USB Port Power Charger Socket 12V 1A & 2.1A Outlet. (<$15) It's made for motorcycles and works great. Hook it straight up to the battery, then hook the camera battery to the USB port.
Step 10: DONE
Hook everything up and test it out.
I also attached 2 Master Locks to try to keep out unwanted fingers.
If you desire longer than 1min intervals in your Time Lapse, you need to use this EASY hack from Konrad Iturbe - chernowii.com
It's called Megalapse!
Get it here. https://github.com/KonradIT/autoexechack
Select your camera and follow the directions.