55c083f9 cc93 4de5 ba4a f87775b18a8e

invention

Kitchen Bots

by JackANDJude

Published on March 18, 2016

Wish you had a pet robot?  Make two-legged walking bots with littleBits and lego technic pieces.  :)  Watch the second video - Kitchen Bots help Jack with breakfast.

UPDATE: The reason they were falling over is the knees buckled backward.  To fix, placed a peg on either side beneath the knees.

Four legged version in the works: Four legged robot test on instagram.

Duration: 1 hour

How To Make It

1

Gather Legos These are the legos you'll need. Some substitutions may also work. :). The second picture shows Legos you'll need to make legs.
Dea7b9ce 3c61 4760 8811 5e3d8a565f58

Dbe2bba9 4e83 41ca ac4f 50a97aed0756

Picture 2

2

Let's do it Lego Style :)
A338bc74 ea2f 4f00 bd28 ef091c8ac739

3

Add this to that That's one rubber band on a plate, and you can put the 1x2 on the left or the right, depending on which way your battery faces.
De3d33a5 f19d 4054 913f 1468b3b0861f

4

Make A Circuit and a Rectangle The circuit is power + light sensor (light) + tethered DC motor. Put this circuit on the type of Brick Adapter shown. Complete the Lego rectangle shape, and add plates to the Kitchen Bot - let's call them chest plates.
9a647092 9bab 4b29 923d 51e159c77287

5

Press the Brick Adapter and circuit Take care to only press on Legos, Brick Adapters and the colorful bitSnaps on littleBits. Never push or pull on littleBits' white circuit boards. String the tethered DC motor between the top of the chest plates and the top of the Lego rectangle.
B9dddaad b877 4882 839d d03f244d55c6

6

Put the motor on back Press the tethered DC motor into the other type of Brick Adapter and then onto the back of the chest plates. Again, take care to press on bitSnaps, but not circuit boards.
14cd4bef 8863 45fb bbd8 22abae4b74e5

7

Make Legs Make two sets of these legs as mirror images.
79928f84 5696 4161 97b5 e96ab01fa888

316fa44b ba69 4bf5 91d5 e2c01415e2de

Picture 2

8

Gear up & Add back plates Push the axle through crankshafts at the fourth hole from the bottom on our Lego rectangle. Place the crankshafts at opposite angles for an alternating step motion. Get a crown gear in there, too. :) Push the other gear onto a short axle and attach to the tethered DC motor with a motor mate. Adjust until the gears mesh, and press back plates against the plastic motor body. More back plates will increase stability. Keeping the gears meshed is the most difficult part, which will require a lot of adjustments.
2ba5cb68 0f56 4315 b538 98e5eeba1906

D728c898 3513 4885 a328 6cb27071941a

Picture 2

Related Projects

Flyvemaskine af Clara og Tjalfe

Indmaden til en flyvemaskine af Clara og Tjalfe.Læg mærke til lys og propeller

Remote controlled AirBoat

An airboat that can be controlled wireless. Both speed and direction! (updated version here: https://littlebits.cc/projects/a...

bit TV

Looks like a normal TV but its made with bits. When the buttons from remote are pressed the remote trigger will be activated and t...