Knex 'Mouse Wheel' Ball Machine Lift

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Introduction: Knex 'Mouse Wheel' Ball Machine Lift

 These are the instruction for my new and innovative ball machine lift, which is on Shadowman39's page on ball machine lifts. It uses an inverted wheel rim, with internal 'scoops' , which scoop up the ball as it enters at the bottom, then drops the ball into the path at the top, this has taken many hours of fine tuning, such as 4 different scoops! Well that's it!


Parts List:
Blue Rod: 101
Blue Connector: 36
Yellow Rod: 48
White Rod: 119
White Connector: 29
Yellow Connector: 69
Red Connector: 28
Purple Connector: 74
Red Rod: 15
Tan Rod (strengthened red rod- highly recommended)
Tan Clip: 10
Green Connector: 6
Y Clip: 6
Grey Clip: 65
Orange Connector: 31
Blue Spacer: 21
Silver Spacer (equal to three blue spacers): 14
Green Peg: 151
Knex Ball (not ones from loopin lizard, big air ball factory)
Purple flexi rod: 4
Red Gear: 2
Gold Gear:2

This Parts Count is probably 95% accurate, and some parts can be docked.
Lets get building!

Step 1: Tower- Base

 The base- Pretty Simple

Step 2: Tower- Motor and Gear Box

 Adding the Motor and gear box, pay attention to the number of spacers.

Step 3: Tower- Strengthening the Tower

Strengthening and other bits

Step 4: Wheel- Rim

 Be careful- pay attention to the pattern of the connectors on the rim sections, and that the grey clips are all on the same side

Step 5: Wheel- Spokes

The spokes- pay careful attention to the way the spokes are attached on.

Step 6: Mounting the Wheel to the Tower and Adding the Path

 Mounting the wheel etc

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    36 Discussions

    why do you need 8 bendy supporters for the wheel when the final picture shows 4

    I'm not sure. I suspect not because they would all run into a scoop at once because they are lighter weight. You could make a timing mechanism that only lets one ball in at a time, that was a problem I had. Anything more then 2 balls and it loads more then one into the scoops.

    ill try it because i will be making a ball machine with this lift going up to a chain lift then the paths go back to the start, so it should be timed good =D

    You could use a turnstile like mechanism, that is powered by the motor. It would need to be timed so that it lets one ball through every time a scoop come past the ball pickup.

    I've used this as a secondary ball lift half-way along a path in my [in-progress] ball machine. was a challenge working gears from my chain-lift motor across the bottom of the machine, and up a second tower to meet the gear box with this lift. thankfully it spun in the right direction when I was done with the gears!

    IMG_8679[small].jpg

    ok i built it... sometimes they dont come out at the right time the wheel kept snapping on me any ideas?

    y dont u put a drop in the back so when the ball falls off, it falls back to the start

    1 reply

    Looks cool! Maybe I'll use it in my next ball machine! I will mention your name!