Update on X5 battery holder design work.
Got one almost working in cahoots with Neil Watts but in the end we had to abandon the mounting location we're using for the X3 adapter. We have a second design printing to mount under the battery cage with tabs out the sides in a forward position which will definitely work.
Here is the abandoned design. The mount fits like a glove and is very secure. But
1) the batteries will not clear the massive rotating X5 gimbal arm, even with the tabs extended out as below, and
2) the design won't work with the X5R SSD drive and we want one design that works with X5 and X5R anyway if possible.
Mounting under the battery cage will work with X3, X5 or X5R. It still allows for CG adjustment using the winged battery tabs, and for folks with a Flytrex mounted there already (I do), the Flytrex can be easily relocated to the flat underside of the new mounting bracket.
Anyway, here's the design we are cutting loose. The X5 overlords have claimed victory in this position. BUT, that mount design could still be useful potentially down the road for something else. It took some work and fits crazy well. I am sad the batteries won't clear and it didn't work