Danny's Mindstorms® Johnny 5 (number five)
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Johnny Five

is Alive!

This Lego model Features:

 

Dual Tread Drive

Rotating Head

Raising Torso

Moving Laser

Grabbing & Lifting Hands

Mouth Lighting

Line Following

Hand Following

Single RCX Design

 

Here are some details:

 

 

 

Head has been designed to get maximum similarity to the real J5.

Touch sensor is now centered, giving the neck more simmetry.

 

Both upper and lower eyebrows are fully poseable, thanks to hinges.

Between the eyes, you can see my new proximity sensor, that make Johnny Five follow your hand.

The mouth lights up while the head turns around, searching for obstacles.

The neck can move freely, and is poseable; stands still thanks to pins with friction,that are inside the neck cardan joint; the yellow pistons are only decorative.

A cam closes a touch sensor when the head is centered, so Johnny knows where obstacles are (old design).

Ever present laser gun: it moves up and down with a micro motor.

The shoulders can be bent inwards and outwards, and cardan joints transfer the servo movements to the arm levers.

The servo motor makes hands grab objects, and once hands are closed, it lifts the forearms.

This is obtained with a lever system.

The head motor has been shifted down,

so that the torso lifter motor can work a bit less (note the 16z gear train).

The fingers are moved by a flex & chain system that begins with the servo, placed behind the neck.

The wrist can be turned without influencing hand movement.

At the bottom of the body find place my custom OUTPUT Multiplexer, that makes possible to action five Lego motors and a servo with a single RCX. This beast is tough on batteries!

The RCX is on the back, and stabilizes Johnny with its weight.

The caster wheel is attached to RCX.

The treads are built with hundreds of tread chain links.

Motors are hidden at the bottom of the robot.

The mechanism in the lower part of the body let Johnny lift lower body and torso at the same time.

Version History:

Johnny Five evolution, from Summer 2004 to Fall 2005

Here you can find some Johnny Five videos: following my hand, raising torso, moving hands.

 

I'm working on Johnny five for an year, and this is the fourth generation.

Check out my smaller Johnny five version!

 

Daniele Benedettelli, September 2005

 

If you have any question about Johnny Five, tell me.