Introduction: Coin Operated Knex Gum Ball Machine!
I BUILT THIS FOR THE I MADE IT CONTEST!! As you can see i posted it the day of the deadline :)
This is my new creation! It is coin operated and designed for quarters.
If you drop in a penny, nickle or dime, it will just take your coin. :)
For every quarter, one gumball is dispensed.
Please read:
I also built lock and key mechanism for safely storing the collected change.
Unfortunately I didn't have enough knex to finish the rest of it :((
I ran out of green rods and 3D connectors.
So i am left with a random lock and key system with no way to attach it to the bottom of the machine.
I Hope the Coin Operated Gumball machine alone is enough :)
This is my new creation! It is coin operated and designed for quarters.
If you drop in a penny, nickle or dime, it will just take your coin. :)
For every quarter, one gumball is dispensed.
Please read:
I also built lock and key mechanism for safely storing the collected change.
Unfortunately I didn't have enough knex to finish the rest of it :((
I ran out of green rods and 3D connectors.
So i am left with a random lock and key system with no way to attach it to the bottom of the machine.
I Hope the Coin Operated Gumball machine alone is enough :)

Third Prize in the
I Made It Photo Contest
260 Discussions
3 years ago
Knex coin operated machine! That is really cool!
4 years ago
;)
4 years ago
You have to make instructions!!!!
4 years ago
Really cool but we wait instructions ;)
Really nice work
4 years ago
Tried to make this a while back, but could not get it to work.
6 years ago on Introduction
have you instructions for this candy machine? i want to make one!
7 years ago on Introduction
Dude you need to post
8 years ago on Introduction
I have 7 gum balls in my moth rite now. (no joke)
8 years ago on Introduction
I made the gumball globe!
8 years ago on Introduction
can you make instructions?
8 years ago on Introduction
Wow......5* How many pieces,approximately?
8 years ago on Introduction
could u plz post this. i want to make it
9 years ago on Introduction
Wow!
9 years ago on Introduction
I think this is fantastic!
9 years ago on Introduction
Can u post the lock or is it already somewhere on the site?
9 years ago on Introduction
Thats totally false. In the other video you can see better that you don't introduce the quarter. It is just a mechanism that makes that always you turnthat thing, a gumball cames out.
9 years ago on Introduction
you NEED to make instructions
9 years ago on Introduction
couldn't you just make a replica key out of your own knex?
9 years ago on Introduction
cool do a how to
9 years ago on Introduction
Please post coin mechanism