Botmite 1

Construction
Details

Modifications
and
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Repair
Repair 2
Vacuum 3
Repair 4
Repair 5
Repair 6

Botmite 2
B2-calcs1 tools
materials

Camera
Transmitter
Hacks & Mods

Nose - 1  Camera, Airspeed and Sensor Housing

Camera, Airspeed, Sensor Section of fuselage
Nose Cone - Part 1  

Nose Cone - the front of the botmite (skybot) aircraft.    Protruding through the front of the nose are two thin  aluminumin tubes.  Both aluminum air pressure tubes are connected to clear silicon plastic flexible pipes which lead to a top and bottom differential quartz pressure sensor.
   This black plastic sensor housing is attached to the plywood frame in the nose by Plumberís goop. Three wires lead from this sensor to the IMU.  A microchip converts the electrical voltages to a digital I2C signal for the IMU (Inertial Management Unit) microprocessor.

Above - Nose shown with pitot tubes attached with hot or electric glue.
Center - Steel wire clip attached with fiberglass to upper nose cone.
Right - Side view of steel wire clip to front of nose cone to assure that wind does not blow it off despite eight neodymium magnets - four top, four bottom.

Nose Cone to tail section - Side View of botmite aircraft aka:  skybot.

Close Up - detail of steel wire passing through Aluminum into carbon tube  (in Section 2) holding LiPo batteries - Thin aluminum brace epoxy or goop to birch thin plywood vertical brace.  Steel wire is hard (carbon) steel bent into place - this serves to snugly hold LiPo batteries.  Cat. 5 (Ethernet) wire provides electricity for blinking Green & Red LEDís.

Above - bottom half of nose cone after carbon fiber rods were mounted with epoxy before camera installation.

   Nose - reflective adhesive tape and fpv 1.2 GHz Camera antenna on top of Transmitter.

Cable, Power - power and control of LED lighting in nose is delivered by Cat. 5 cable split  out into power; four pair or eight wires feed the LEDs. Via a 0.1  header on perf board, power is distributed to the uav nose.
 

    Routed from the nose to the (See: Etron - 4) IMU section just aft of wings, the cable assembly delivers control of  LED lighting to the IMU, if desired. Blinking red and green LEDs are for external visual reference.
    Primary power for electronics, servos and LEDs in the nose section are supplied by ESC (speed controller) via 10 amp Lithium batteries. Power is voltage regulated and filtered to avoid interference.  Secondary electric power is provided by backup Lithium battery.

  Nose wheel steering using a Y connector to second servo electrically connected to rudder servo. Note: a steel  staple is coiled at center to absorb terrain shocks and not strip servo  gears. Here see 9 gram servo is attached to additional plywood brace cut into the horizontal plywood structure.

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