I made the "Yet Another Tablet Holder" (in short Yath) for my Samsung SM-T710 tablet as I did not like the way it was mounted underneath the DJI Mavic Pro's RC.
The whole setup is compatible with the 1" RAM ball bases mount system.
The RAM mount double socket used is a RAM mount and is 2" long (the: RAM-B-103-A-238U)
It can be found on thingiverse, and if needed you could 3D print it.
To make Yath more universal for other tablets I also created a Velcro tablet mount. ¯\(ツ)/¯
Please fly safe!
Disclaimer: In addition, due to damage and accidents etc. by using this part I do not take any responsibility!
main mount 30%, holder 20%
The above picture examples are all printed with PLA.