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Ladybug a mean aphid hunter
Iím a Mindstorms EV3 robot. I eat aphids just like a real ladybird! Watch the video and discover how I chase insects.
About this creation

Video



Oleander Aphid

Aphids or lice are small insects that suck sap from leaves. The Oleander aphid (or Aphis nerii Boyer de Fonscolombe) has a bright yellow color and lives among others at oleander plants. Note the fluid droplets at the top of the chronicles which are meant to poison enemies like the ladybug.


Photos of real aphids were used to design the Lego insect. Like the photo at the left: "Aphid feeding on sap" by Sanjay Acharya own work licensed under CC BY-SA 3.0 via Wikimedia Commons.

Aphid walking mechanism


The aphid is remote controlled by Lego Power Functions. Itís legs are driven by two M-motors. Both left & right legs apply two crankshafts to realize walking motion.


The right photo shows two bevel gear sets needed to transmit power from the motors to the legs. Due to the high torque level deformation of the bevel gears can occur resulting in slip between gears. A short flex tube functions as an axial bearing to prevent slip due to deformation of the large gear wheels.

Ladybug hunting aphids


The aphid has an EV3 beacon inside which sends infrared signals. The ladybird detects this signal with her infrared sensor and drives towards the aphid by a control algorithm in the software program. As soon as the ladybird hits the aphid at the back power is shut off. Consequently the aphid is unable to move any longer and declared dead.



Ladybug


The working principles of the ladybird robot are explained at "Ladybird a cute Lego robot".


Enjoy ladybird robotics!
Arjen Vuurzoon.




Comments

 I like it 
  March 31, 2017
Fantastic build!
 I like it 
  April 6, 2015
Wow!!!! Wonderful!!!!
 I like it 
  April 2, 2015
Ladybug and aphid are brilliantly designed and engineered, each in its own way. Structurally, ladybug's wing covers are quite impressive.
 I like it 
  April 2, 2015
Wonderful stuff, and very clever as well as cute.
 I like it 
  April 2, 2015
Great quality builds, as well as a fun and interesting concept. Great work!
 I like it 
  March 29, 2015
Realistic insect.
 I like it 
  March 29, 2015
Nice creation! Well done!
Family Vuurzoon
 I like it 
Kain .
  March 28, 2015
I can't find words for this, for it's just too good.
 I like it 
  March 28, 2015
Nice looking bugs!
 I like it 
  March 28, 2015
The ultimate battle! Cool builds!
 I like it 
  March 28, 2015
Great job !
 
By Family Vuurzoon
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Added March 28, 2015
 


LEGO models my own creation MOCpages toys shop Ladybug a mean aphid hunterRobotics


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