How to Build Project "Fab" Knex Ball Machine





Introduction: How to Build Project "Fab" Knex Ball Machine

About: You can find me over on Knexflux!

Hello, This is an Instruction how to build my ball machine "Fab". I Hope you'll like it!

Step 1: Piececount

green: 208
white: 210
blue: 417
yellow: 262
red: 119
grey: 42
black (same length as grey, you could youse a gray rod instead, but a black one is better): 1
Total Rods: 1259

darkgray: 138
lightgray: 6
orange: 104
red: 112
green: 29
purpel: 301
yellow: 298
oange (you can connect tubing on them): 30
blue: 91
white: 50
Total Connectores: 1159

orange clips to put tubing on: 5
blue spacer: 34
grey spacer: 26
tanclip: 5
Y-clip: 70
green-flexible rod (same length as gray rods): 1
orage-flexible rod (same length as yellow rods): 4
red medium-sized gear: 8
battery-motor: 1
chianlink: 94
261 cm tubing: 1
Total Other: 149

Total: 2567

Step 2: The Frame

Ok now you'll build the frame

Step 3: Rolling on Rods

now you'll make on the left side the "rolling on rods" element.

Step 4: The Maze

Now you'll make at the right side the maze

Step 5: The Center

Now you'll make the center of the model.

Step 6: The Right Side

Now you'll make the right side.

Step 7: The Left Side

Now you'll make the left side.

Step 8: Flip Flap Thing and Ferris Wheal

Now you'll make two elements: the flip flap thing and the ferris wheal.

Step 9: The Tower

Now you'll make the tower.

Step 10: Spiral Case and Wheal Slide

It's time to make the spiral case and the wheal slide, an Element I invented.

Step 11: Archimedes Screw and Special Slide

Now yo'll make the archimedes screw and the special Slide.

Step 12: The Last Path

Step 13: The Chain

Now you'll make the chain.

Step 14: Finish

You finished buildeng Fab!!!



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    Please be positive and constructive.




    Yeah, you'll have to think of your own way to attach the motor, though

    Wow! In step 3, part 8, it looks exactly like an optical illusion!

    1 reply

    Maybe it IS one... :P:P:P

    No, sorry. Maybe you could make one?

    Mine won't exactly be good, because I prefer to film it in one video, but it will be fine. When I cover the camera with my hand, that's path seperation.

    That doesn't matter.
    Please do the modification in Step 12 (I didn't add that as comment yet as i somehow can't edit ibles atm) that you use in that helix thingy instead of two yellow connectors only gold ones and wined the track all the way, I haven't tested that but that should make it work better. :)

    I will! After I finish building it....

    thanks! did you build it already?

    your welcome. no because me and the blue nullet made the final updates to my ball machine

    its still good thow