This page describes my latest obsession - radio controlled multi-rotors. Having learned the basics with the wonderful Blade Nano QX, I've since built a number of machines to my own design, a number being the "Phynnodderee 270" (that being 270 mm between motors).
The newest of this family is a carbon reinforced epoxy/foam
build. Here's the build log:
There's also a 420mm (must be "Phynnodderee 420" then). This is equipped with GPS and telemetry. Similar foam /epoxy sandwich body with carbon fibre arms.
... and then the tricopter (600mm m2m) ... also GPS and telemetry. Cheap build using 10mm aluminium square tube.
It folds for easier transportation and storage.
The mini frames are built from a common design. A librecad DXF file defines the general arrangement, there is also a PDF version. The components used are:
|Component||Glass frame (2S)||Carbon Frame (2S/3S)||"New Blue" Frame (3S)|
|Lipo||Turnigy Nano-Tech 950mah||Zippy 1000mah||Zippy 1000mah|
|ESC||RCX 10A G series (simonk firmware)||Afro 12A (simonk firmware)||RCX 12A G series (simonk firmware)|
|Motor||Hobby King 1811 3100kv,
replaced by RCX 1306-8 3100KV
|AX 1806N 2100kv||RCX 1806-2 2300KV|
HQ Prop 5030 (2 blade)
Gemfan 5030 (2 blade)
Hobby King 5030 (3 blade)
GoodLuckBuy 6045 (2 blade)
HQProp or Gemfan 5030 (2 blade), Hobby King 5030 (3 blade)
|RCX 6030 carbon fibre|
|Flight Controller||Flydruino NanoWii (MultiWii 2.3 firmware)||Hobby King NanoWii (MultiWii 2.3 firmware)
replaced by Acro Naze32 (cleanflight firmware)
|Flip32 (cleanflight firmware)|
|RX||Orange R100 Spektrum Satellite||Lemon RX Spektrum Satellite||Lemon RX Spektrum Satellite|
The only real difference between the frames is the power train; it would be just as practical to build the glass frame on the 3S Lipo / 12A ESC / AX 1806 motors. In fact the 2S frame is smaller at 260mm motor to motor, while the 3S frame is 270mm m2m).
The frame is a built using a foam sandwich technique. The core is 6mm Depron closed cell foam, and the skin is woven e-glass, 200gsm for the first build, and 90gsm carbon fibre for the second and 160 gsm e-glass for the latest. In both cases, epoxy resin is used. The frames allow experimentation of both construction techniques and power trains.
The larger H frame is built in a similar fashion. The centre 'hull' is depron foam sandwich, the arms are 12mm carbon fibre tube.
|Lipo||Turnigy Nano-Tech 3000mah (3S)|
|ESC||RCX 20A G series (simonk firmware)|
|Motor||Keda KD A20-26M 15A 1130kv|
HQ Prop 9050 carbon composite
|Flight Controller||Hobby King MultiWii ATmega 2560 (MultiWii 2.3 NAV firmware)|
|RX||Lemon RX DSMX Spektrum Satellite|
|Telemetry Radio||Goodluckbuy 3DR (433Mhz)|
Then came the tri-copter. Very simple build, 10mm square aluminium tube and plywood body. 600mm motor to motor. Naze32 compatible (flip32+) flight controller with cleanflight firmware.
|Lipo||Turnigy Nano-Tech 3000mah (3S)|
|ESC||Emax 25A (simonk firmware)|
HQ Prop 10x5
|Flight Controller||Flip32+ (Naze32 clone), cleanflight firmware|
|RX||Lemon RX DSMX PPM|
|Telemetry Radio||Generic hc06 Bluetooth
Once upon a time, I thought that autonomous navigation and aerial photography / video would be fun. I was wrong; throwing 270/250 class machines around the sky is are more fun, but here's some pictures anyway.
Dusk flight at the local community centre field
Gansey Beach,Isle of Man. On board video and pre-planned mission followed by manual flight.
Telemetry log replay of an autonomous mission using mwp as the misison planner, flight logger and replay tool
On board acro
Getting a little better, and the 270mm frame is so locked in, even with nanowii.
Dusk flight of the carbon frame flying at the local community centre field
Another dusk flight of the carbon frame flying at the local community centre field
Carbon frame flying at the local community centre field
(more) Carbon frame flying at the local community centre field