Not being overly chuffed with the battery mount on the 3DR and wanting somewhere to mount a camera, I decided to make another layer to the quad. A third plate below the quad seemed idea.
I fished out a scrap of unused fibreglass PCB I had in my goodie box. I took the quad apart to get at the bottom plate to copy as a template.
The normal plates have a series of 3 holes in the middle of each edge which seemed a perfect option to mount stuff. I drilled the same hole patter in the new plate.
Using M3 * 30mm screws built up my new platform. it is suspended under the quad and allows for a snug fit ot my 2200mAh 3S lipo. It simply slides in and is held there by itself. I might look at putting a strap in for safety to stop it sliding out.
The underside of the board is the copper clad which I was going to etch off but decided against it. It would make a perfect solution to adding more stuff like a camera gimbal because you can solder it :D
I did not take any pics during the build but it was pretty straight forward. The copper clad board is very easy to work with and rather strong.
The only think I am concerned about and will be changing is the screw length. I think the battery is a very tight fit and apparently lipos expand as they (dis?)charge so this might be an issue. 35mm will be ample.
The battery in place (above)
Comments
The bigger the battery, the smaller the wallet.