My first large-scale knex project! This is a great Knex Tower Crane that is 6.2 feet tall and has a boom 4.11 feet long. Very durable, it has stood for two months in my room under all kinds of tests. (There is a limit to it's ability, though.) I hope you like it, the crane rotates and has a working hook. You can make your own hooks for various tasks.
Step 1: Piece Count
With this large a project, piece counts are necessary!
Subject to small counting errors.
1-way grays: 58
oranges: 40 (68 if fully cross-braced)
purple snaps: 222
blue snaps: 94
yellow: 73 (129 if fully cross-braced)
tires: a whole lot!
blue spacers: 20
gray spacers: 9
small blue gears: 2
medium yellow gears: 3
big yellow gears: 2
tan clips: 14
blue clips: 7
string: a reasonable amount, yarn works well
Step 2: Base and Tower
Not hard, just follow the pics!
Step 3: The Gearbox
This little rig makes the entire boom rotate with the turn of a crank!
I assume that it could be fitted with a motor if desired. I simply don't have one.
Step 4: Boom Base and Winch
This connects the boom to the tower. Follow the pictures or the model won't work.
Step 5: Winch Casing
This is for strength, but it also makes it realistic.
Step 6: Counterweight Bin and Connecting Beam
This handy device will hold the counterweights to balance a load!
Step 7: The Hook
This is my model for a hook, anything will work.
Step 8: The Boom
This is what makes a tower crane a tower crane!
Step 9: Final Assembly, Part 1
Connect it all, and have fun with your new awesome model!
Step 10: Final Assembly, Part 2
Ok, now you're done!