Project S (Knex Ball Machine)

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Posted in PlayKnex

Introduction: Project S (Knex Ball Machine)

Here are the instructions on how to make my knex ball machine.

Video.

Step 1: Piece List

Piece List

Rods
Red - 3
Yellow - 42
Blue - 56
White - 32
Green - 58

Connectors
White - 2
Blue - 45
Yellow - 27
Purple - 44
Green - 2
Red - 10
Orange - 11
Light Gray - 2
Dark Gray - 22

Other
Gray Spacers - 7
Blue Spacers - 12
Medium Gears - 7
Small Gears - 1
Y-Clips - 4
End Caps - 14
Motors - 1
Chain Links - 27

Step 2: Base Part 1 (Path)

1-3:Make
4-6:Make
7:Connect

Step 3: Base Part 2 (Motor and Gears)

1-5:Make

Step 4: Middle and Top

1:Make
2:Make
3:Make
4:Connect
5:Connect

Step 5: Chain and Chain Support

1:Make
2:You need 27 chain links. Put one of these on 10th and 23rd chain links.
3:Whole chain.

Step 6: Path and Path Supports

1:Make
2:Make
3-5:Make
6-7:Connect
8:Connect

Step 7: Assembly

1:Base Part 2 + Base Part 1
2:Middle and Top + Base Part 1 and 2
3:Add Chain Support
4:Add Chain
5-8:Path and Path Supports + Base Parts 1 and 2 and Middle and Top
9:Add Balls
10:Turn switch on motor to the left.
You're Done!

Step 8: Check Out My Other Instructables

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    45 Comments

    How do I make the lift? Do more pictures next time.

    It takes one.

    does it have to go up and down to qualify as a ball machine?

    14 replies

    aww, look at mine , it is THE MOST POINTLESS thing ever, but if you say it has to go up ill add a ramp.

    IMG_1088.JPGIMG_1089.JPGIMG_1090.JPGIMG_1091.JPG

    MIne is smaller, :P

    somewhat, mine uses less rare pieces, can use any motor, needs no chains or gears, has a carrying handle, and uses less pieces.

    actually, most of the parts on your thing are rare. if you want to know what i am talking about, they can be found on the stock of the storm 222

    yeah, but if you have one of them, you have all of them, and has nobody showed you how to substitute pieces?

    no, i dont have any parts like that

    True.......but mine is smaller, :P

    yeah, it is, but I built it and it keeps jamming!

    the chain just suddenly locked in place, even when I had a hand crank.

    Then you probably made it wrong.

    fixed! now it goes up 2 centimetres, then just falls, gos around, up again, falls etc. etc.