Hi guys, this is going to be my first build, new to the Rc world but I have some experience with electronics, modifying 3d printers and etc. I've done a ton of research but i still have a few questions. First I'm not sure about the transmitter receiver setup, I've seen this setup recommended on an instructable: Turnigy 9xr with FrSky DJT-JR telemetry module and D8R-II plus 8 channnel receiver
http://hobbyking.com/hobbyking/store/__31544__Turnigy_9XR_Transmitter_Mode_2_No_Module_.html
http://www.alofthobbies.com/jr-transmiter-telemetry-module.html
http://www.alofthobbies.com/frsky-d8r-ii-plus-8-channel-receiver-w-telemetry.html
or the same site also suggests the FrSky Taranis and x8r combo
http://www.alofthobbies.com/frsky-d8r-ii-plus-8-channel-receiver-w-telemetry.html
my question is does the taranis need a telemetry module liek the 9xr? also any other suggestions for transmitter receiver combo are welcome.
I think I've got most of the hardware nailed down but I'm gonna list everything so If anybody sees any problems or can suggest a better setup please let me know.
- X4 setup, custom carbon fiber frame
- Arris 3508 380kv motors, ~100g each (can't find exact specs but similar motors weigh this)
- tarrot 15*5.5 carbon fiber props, 18.2g each
- hobbywing flyfun 10 amp ESC, 9g each
- custom power dist, ?g
- turnigy 4s 5000mah 20c lipo, 528g (not settled on that one, may look into Li-Ion)
- Pixhawk board, 38g
- 3dr ublox gps, 17g
- 3dr 915mhz telemetry, ?g
- FrSky x8r receiver, 17g
The frame is gonna be carbon fiber tubes sandwiched between 2 CF plates with a 3d printed abs plastic hub in the center. I'm going for a 660mm wheelbase. The motor mounts on the end of the arms will also be 3d printed abs plastic. Similar carbon fiber/metal frames weigh around 600g, I'm pretty sure I can get mine down to 500g.
View attachment 15981
Those motors with those props are supposed to make 1320g thrust each at 14.8v drawing 8 amps at 100% throttle, x4 is 5280g max thrust, /2 is 2640 AUW. So far all my parts add up to 1600g, + 100g for wiring and etc is 1700g, so payload should be 940g, plenty for what I need. My expected payload is just a 170g digital camera modified for IR, I may add an fpv system later. Am I correct in thinking that even though it is a large rotor/low kv design flying it at almost 800g below max AUW should make it fairly maneuverable right? Like I said i'm a noob to this so if anybody sees any problems or can suggest a better setup please let me know!
http://hobbyking.com/hobbyking/store/__31544__Turnigy_9XR_Transmitter_Mode_2_No_Module_.html
http://www.alofthobbies.com/jr-transmiter-telemetry-module.html
http://www.alofthobbies.com/frsky-d8r-ii-plus-8-channel-receiver-w-telemetry.html
or the same site also suggests the FrSky Taranis and x8r combo
http://www.alofthobbies.com/frsky-d8r-ii-plus-8-channel-receiver-w-telemetry.html
my question is does the taranis need a telemetry module liek the 9xr? also any other suggestions for transmitter receiver combo are welcome.
I think I've got most of the hardware nailed down but I'm gonna list everything so If anybody sees any problems or can suggest a better setup please let me know.
- X4 setup, custom carbon fiber frame
- Arris 3508 380kv motors, ~100g each (can't find exact specs but similar motors weigh this)
- tarrot 15*5.5 carbon fiber props, 18.2g each
- hobbywing flyfun 10 amp ESC, 9g each
- custom power dist, ?g
- turnigy 4s 5000mah 20c lipo, 528g (not settled on that one, may look into Li-Ion)
- Pixhawk board, 38g
- 3dr ublox gps, 17g
- 3dr 915mhz telemetry, ?g
- FrSky x8r receiver, 17g
The frame is gonna be carbon fiber tubes sandwiched between 2 CF plates with a 3d printed abs plastic hub in the center. I'm going for a 660mm wheelbase. The motor mounts on the end of the arms will also be 3d printed abs plastic. Similar carbon fiber/metal frames weigh around 600g, I'm pretty sure I can get mine down to 500g.
View attachment 15981
Those motors with those props are supposed to make 1320g thrust each at 14.8v drawing 8 amps at 100% throttle, x4 is 5280g max thrust, /2 is 2640 AUW. So far all my parts add up to 1600g, + 100g for wiring and etc is 1700g, so payload should be 940g, plenty for what I need. My expected payload is just a 170g digital camera modified for IR, I may add an fpv system later. Am I correct in thinking that even though it is a large rotor/low kv design flying it at almost 800g below max AUW should make it fairly maneuverable right? Like I said i'm a noob to this so if anybody sees any problems or can suggest a better setup please let me know!
