Questions regarding a wall "suction" car

Community General Discussions
1

Hello everyone,

I am interested in building a type of rc car that can stick and manuever to a wall utilizing a brushless dc outrunner motor in order to thrust the robot towards the wall. listed below are the sensors, motors, and components I have selected so far....

  • EDF outrunner 2836KV motor: 11.2V 46A produces 1100g of thrust (weighs 110g)
  • Turnigy ESC (60A) in order to control the EDF motor
  • (4) Micro metal gear motors (6V, 120mA, 125 oz-in^3
  • (4) H- bridges for the micro metal gear motors
  • Arduino uno
  • 3-axis accelerometer in order to detect when the car falls of the wall (2.5-5V and 5mA)
  • An altitude sensor I2c, (1.95-3.6V)
  • 1 battery for the brushless motor (15 V and 48A max discharge)
  • 1 battery for micro motors, sensors, and arduino (7.4V and 20A max discharge)

I would like to have the motor connected to some kind of a chamber ( similar to a duct fan for rc planes)

I would appreciate some input from robots and electronics experts since I am new to this.

Thank you!

 

2

Experimentation

Cannot say I’ve personally built a wall climber, but the principles seem straighforward:

  • As lightweight as possible
  • A strong fan to suction air out from under the vehicle (ducted ideally)
  • A skirt to create negative pressure, and no areas where air can leak in
  • "Grippy" tires
  • Flat surface
  • A BLDC motor + fan combination which is lightweight but able to produce good thrust.