The great advantage of a 3D printed RC plane is that in case you crash it you can print the damaged parts again, this of course is thanks to 3Dprinting technology improvements during the last years.
This printable airplane is a good option for beginners thanks to his high wing configuration that makes the RC plane very stable.
The printer used to build this RC aircraft was Anet A8, which is one of the cheapest 3D printers of the market.