Grasshopper - a Knex Ball Machine

by phrasmotica in Living > LEGO & K'NEX

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Grasshopper - a Knex Ball Machine

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I used to make ball machines regularly between 2009-2012 but haven't really touched my Knex since then! This is my first build in a long time, and I'm very chuffed with how it turned out.

Supplies

Rods

  1. Green x853
  2. White x650
  3. Blue x874
  4. Yellow x452
  5. Red x152
  6. Tan x2
  7. Grey x41
  8. Pink Flexi x3
  9. Black Flexi x51

Connectors

  1. Grey x258
  2. Orange x181
  3. Light Grey x75
  4. Red x424
  5. Green x82
  6. Yellow x525
  7. Gold (tubing) x34
  8. White x76
  9. 3D Blue x289
  10. 3D Purple x476

Gears & Wheels

  1. Blue x2
  2. Red x10
  3. Worm x1
  4. Yellow (medium) x2
  5. Yellow (large) x1
  6. Wheels x6
  7. Tyres x3

Others

  1. Chain links x26
  2. Hinges x20
  3. Blue spacer x154
  4. Silver spacer x149
  5. Tubing x8
  6. Y-clips x89
  7. Locking clips x27
  8. Blue clips x17
  9. Tubing clips x291
  10. Tubing splice x1
  11. 12v motor x1
  12. Balls x5

Total: 6,319 pieces

Video

A video of the machine is available on YouTube: https://www.youtube.com/watch?v=u-1YwqTP0sQ

And you can visit my website for the "director's cut": https://julianssecretdomain.com/knex-machines.html

Miscellaneous Images

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Path Separator Images

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Some close-up images of the four-way path separator at the top of the machine.

Adapted from Bezempje95's Infinite Switch, which can be seen here: https://www.instructables.com/The-official-guide-to-knex-ball-machine-path-separ/