Author Topic: K'nex Ball Counter  (Read 4644 times)

Offline Northern Fields

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K'nex Ball Counter
« on: December 03, 2015, 09:02:14 pm »
K'nex Ball Counter
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Hi everyone,

This is my newest K'nex creation, a motorized mechanical K'nex ball counter which is part of my up and coming ball machine. I am planning to use it to count the number of balls going down a certain path on the machine which will also be the number of times the main lift goes up and down.

And here's also the instructable  -> http://www.instructables.com/id/Knex-Ball-Counter/ 

[font='Helvetica Neue', Helvetica, Arial, sans-serif]How it works:[/font][/color]
[font='Helvetica Neue', Helvetica, Arial, sans-serif]It has 1 regular K'nex green motor that powers the 2 counting dials. It is turned on when the ball falls down a chute and lands on a switch starting the motor. The motor turns a series of gears which turns a small arm turning the units dial 1/10th of the way round. There is a blue clip on one side of the dial so that every time the dial switches from 9 to 0 it lifts another arm which is attached to a gear. This gear meshes with a gear turned by the motor and then using the motors power turns another small arm which turns the tens column. This gear then resets until it is turned again to mesh. The machine then also turns itself off after one complete circuit using a design created by shadowman39 that I have modified so credits to him.[/font][/color]
Some stats:
  • It took around 15 hours to design and construct over a period of about 3 weeks.
  • Uses approximately 2,000-3,000 classic K'nex pieces
  • 245 of those pieces are used in the dials
  • The dimensions are 1 red rod high by 1 red rod deep by 1 1/2 red rods wide (3 blue rods) so 128x128x180mm
Any questions feel free to ask I hope you enjoy it
-Northern Fields-


Offline Naxon

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Re: K'nex Ball Counter
« Reply #1 on: December 04, 2015, 01:09:10 am »
Very nice! It would be cool to see a coin counter that works like this but on a smaller scale.
My name on instructables is Sonic Broom.

Offline Northern Fields

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Re: K'nex Ball Counter
« Reply #2 on: December 04, 2015, 08:32:25 am »
hmmm yh i agree although it may be hard to make the dials and motor switch and small but I'm sure it could work thanks :D

Offline Naxon

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Re: K'nex Ball Counter
« Reply #3 on: December 04, 2015, 03:33:29 pm »
You could just make it with a crank so you put coins in a shut and crank it to count all the coins. I don't have a working motor so that's why i't would be cool if it didn't need one.
My name on instructables is Sonic Broom.

Offline Sorunome

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Re: K'nex Ball Counter
« Reply #4 on: December 04, 2015, 05:36:24 pm »
Love it!

Also, did you know that you can import instructions from instructables easily? In the top bar in the editing thing is a button "Instructables Import", that way you wouldn't have to link to an instructables instruction and only have to create it once! :D
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Offline mathsboy314

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Re: K'nex Ball Counter
« Reply #5 on: December 05, 2015, 05:57:02 am »
Is it possible that this can become a path selector?
I know that Knex Balls cant read, but maybe if the cards were Braille then it would have some impact on the speed and director of the ball, making it a path selector...
On the other hand, 100 paths is a bit much.  ;)

Offline Northern Fields

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Re: K'nex Ball Counter
« Reply #6 on: December 05, 2015, 12:22:37 pm »
Naxon, Yh i suppose that could work however idk if a coin would be heavy enough to turn a whole mechanism, maybe it could work but my design would really have to be modified in order for it to work that way hmmmmmm


Sorunome, Thanks yh I saw but I tried it and it said I had to change my profile pic or something and I got confused  ;D  so I just made a new instruction  :)


Mathsboy, hmm I think it could work I think maybe if the dial had some impact on a path selection device but yh it would be verrrrryyyy long and hard to make with 100 paths  :o [size=78%] [/size]

Offline Sorunome

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Re: K'nex Ball Counter
« Reply #7 on: December 05, 2015, 05:11:34 pm »
[...]

Sorunome, Thanks yh I saw but I tried it and it said I had to change my profile pic or something and I got confused  ;D  so I just made a new instruction  :)

[...]
Nah, just change that "my website" on instructables to http://knexflux.net/profile/Northern%20Fields/ that is in order to verify that it is actually you as you are only supposed to be able to import own instructions.
When importing you can also chose to append the instructable to the end of the current instruction ^.^
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Offline Northern Fields

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Re: K'nex Ball Counter
« Reply #8 on: December 06, 2015, 05:20:54 pm »
OHHHHHHHHH thanks I'll do that now then  ;D

Offline master-splinter306

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Re: K'nex Ball Counter
« Reply #9 on: March 16, 2016, 09:38:20 pm »
Great job man! 8) 8) 8) 8) 8)

Offline Linkin_J_Knex

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Re: K'nex Ball Counter
« Reply #10 on: March 17, 2016, 06:18:46 pm »
That's a very clever idea, great job!!  ;)
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