Picture of Servo Controlled Labyrinth
Do you know this classic wooden labyrinth game with two knobs for X and Y rotation?

So, I've decided to modify one by connecting two standard servos to the knobs and let a microcontroller (ATmega32) play the game.

- To CarlS www.instructables.com/id/Servo-Controlled-Marble-Maze/ for inspiration.
- To the AVR freaks www.avrfreaks.net especially Dean (aka abcminiuser) for his excellent tutorials.

Please, feel free to write ideas for improvements and modifications.

Step 1: Materials, Parts and Tools

Picture of Materials, Parts and Tools
I found all the materials for this project laying around at home and there were no plans nor designing. I just took the materials and thought how I can assemble them altogether.
You can use other materials and basically it's a good practice to design and make plans beforehand.

1 wooden Labyrinth - 280/230/60 mm
1 wooden board - 400/350/20 mm
4 pieces of wood – 30/30/10 mm
2 pieces of wood - 150/155/10 mm each
2 pieces of wood, L shaped – 120/27/4 mm each side
4 pieces of wood, L shaped – 34/32/8 mm & 18/32/8 mm each
600 mm long strong silk string
8 pieces of rubber – 30/30/1 mm each
4 L brackets, stainless steel – 32/32/1.5 mm each
8 bolts (40/5 mm) with nuts and washers
A bunch of small wood screws and nails
a piece of paper, A4 for example
contact adhesive
insulating tape

2 Hitec HS-311 Standard servos
AVR ATmega32 and a programmer – I use the AVR-LIP (EC-AVR) by DeccanRobots
2 straight switch knobs
1 breadboard
Some wires and pins

saw, screw-driver, hammer, sharp knife, scissors, clamp etc.

This is awesome! I used to own one of these when I was much younger. Now I can win every time haha.
AJMansfield2 years ago
You need a video showing it beat the game, not just starting.
opiesan4 years ago
I've seen something similar a few years ago where the labyrinth was controlled via a Wii fit board. A very cool project indeed.

Would it be much harder to do something similar with a foosball table? I've seen a basic one made entirely out of wooden dowel rods and thin, flat wood pieces for the players. It would be interesting to build a scaled down model with only a couple of rods for each team, then set up two microcontrollers to battle it out. Likely a LOT more complicated than it sounds but it would be a great project.
tburde4 years ago
or, if you had an NXT set, jailbreak a friends iPod and use LegoDrive :P to control the NXT directly...
graffix4 years ago
Nice project, I'm trying to do the same thing.Just have a question or a comment realy.You didnt have any problems keepn this calibrated?
it is a funny video
sharvel875 years ago
Hi, Can you please tell me what kind of servo fittings did you use to interface the servos with the switch knobs. Thanks in advance for your help :D
nivini (author)  sharvel875 years ago
Hi, you can get the answer from the photos on step 2 and step 3 :)
HMBeck5 years ago
 If you transferred the idea across to Etch-a-sketch, ensuring that the servos were fast enough and if you had some very good programming and electronics knowledge, you could maybe make an Etch-a-sketch CNC monitor that refreshes every four seconds or so. It would look great (even if practicality would be low).
 Haha, i found one of those Labyrinth Games for $3 at a yard sale a few months ago! WOO!!
I too just got one at a second hand store. I think this was very well done but destroys the modern-day purpose of a fun game using no electricity or batteries or motors. Just wood metal and springs.
northconnor5 years ago
Great job. Have you thought about making it controllable from an iPhone/iPod Touch using the accelerometer?
nivini (author)  northconnor5 years ago
I've got no iPhone/iPod, but I'm gonna check any kind of controller with this game. thanks :)
amando96 nivini5 years ago
 Very good project, now add a wii nunchuck! (ebay, very cheap ones there)
 Coolest instructable I've seen in a while.
nivini (author)  M4industries5 years ago
Thx ☼
Doctor What5 years ago
 I've never actually seen one of those ball labyrinths before.  Very fun looking.