Introduction: Knex Double- Decker- What- The- Hecker Pinball Machine Instructions

My first instructable. Before you move on, if you don't have at least 5000 pieces turn away but for those who do, I give you the Knex Double Decker What The Hecker Pinball Machine! This large 8x16 blue rod structure sized project includes these elements:

(The 4th picture shows where they are.)

Double-paired flippers

plunger with automatic ball loader

block gate (prototype, won't always work)

gate resetter (prototype, won't always work)

lift wheel(already been invented by whoever I give credit to)

scoring mechanism (ratchet based)

two play floors

If you really want a challenge involving long building processes and high piece amounts, then enjoy this instructable. If you have any questions regarding step clarity, let me know and I answer you(almost immediately). For now, this will be my only instructable. Enjoy! Please rate!

I've also took the pictures with a canon HD video camera so the pictures came out crystal clear, clear enough to be manageable as a pdf instructable. The pictures are over 2000x3000 in size and are over 950 Mb's worth of uploading. 

Below is a video showing how to play it and also some of the bugs this design still has in it.

Step 1: The Big Piece Count

This may take you a while. Also, micro knex black gears and chain links will be used. 

RODS

grey- 11

red- 42

yellow- 375

blue- 1087

white- 739

green- 882

CONNECTORS

white- 262

blue 3d- 451

purple 3d- 533

yellow- 144

red- 179

orange- 129

grey- 138

light grey- 11

green- 51

gold tubing connectors- 76

SPECIAL

medium tire rim- 5

medium tire tread- 1

small tire- 1

red gear- 3

blue gear- 3

grey electric motor- 1

purple flexi rod- 2

9- hole panel- 3

little triangle panel- 3

3- hole triangle panel- 7

orange flexi rod- 14

small square panel- 1

gold tubing splice- 10

blue spacer- 141

silver spacer- 234

tan lock- 40

blue clip- 20

y- clip- 29

black rod- 8

tan rod- 2

rubber bands- 12

micro knex black gear- 3

micro knex chain link- 45

knex balls- 3

tubing

GRAND TOTAL- 5700










Step 2: Lower Framework, Plunger Path, and Ball Collect Ramp

This step is the first longest step in the project. The dollar bills refer to the position of the area of the part. Look carefully at each picture. 

Step 3: Lower Play Area, Lift Passage, and Drop Gate Pully System Tires

The second longest step. Take your time and carefully attach step 2 to 1 which is difficult.

Step 4: Legs

Now let's build the legs.

Step 5: Drop Gate Pully System

I would recommend thinner string for smoother movement. You will be working under the model so be careful.

Step 6: Upper and Lower Flipper Systems

This step is a little tricky. Look at the pictures very carefully.

Step 7: The Plunger

A short step.

Step 8: Ball Release System

My favorite part in the whole model. Follow the pictures carefully.

Step 9: Upper Play Area

Another piece consuming step but the last of them.

Step 10: Lift System

Now things get mechanical!

Step 11: Play Area Walls

Very important pieces! Attaching these walls may be a little tricky so try not to push too hard when snapping them onto the play area. You don't want to damage the play areas because it is very difficult to get under it to repair it.

Step 12: Motor and Gearbox

A complicated step. Look at the pictures carefully.

Step 13: Scoring Mechanism

The cool bit that keeps score which works like a ratchet. You will also need scissors, a sharpie, strip of paper, and scotch tape.

Step 14: Orange Ramp

The almost impossible to hit ramp.

Step 15: Rubber Band Bumpers

Yay, the last step!

Step 16: A Few More Tips Before You Play

You are done! Just a few more tips on how to play. Scoring is done when the ball reaches the score chute and a point will be awarded. The ball will shoot back down to the bottom play area and the process is repeated seven more times until you reach 8. The red connectors mentioned earlier in the motor section controls the reset sequence of the drop gate. This is normal mode. Remove them for easy mode which will disable the drop gate from blocking the lift passage. If the drop gate doesn't fully lock when reset, adjust the string attaching it to the motor section. Same situation goes for the ball release system. Have fun!

Comments

author
Steelhunter made it! (author)2014-06-02

I just finished building the pinball machine. It took 5 days to build and a lot of work. I really enjoyed building it and it is really fun and addicting to play. I give the build a 10 out of 10 and look forward to building more from you.

IMG_0608[1].JPG
author

You did a fantastic job building the machine and I especially like how you raised it!

Keep up the good work and if you have any builds, I'd love to see them!

-Knexpert#10829476

author
KneXFAN200 (author)2016-10-10

I am going to make this after I get more k'nex from big ball factory for Christmas. NICE!! : Q

author
Quidditch33 (author)2015-03-03

How long is the string on step 5?

author

It's been years since I built the machine but my best guess would be around 5 feet long. Hope this helps!

author

It did. Thank you.

author
The Knex Inventor (author)2016-06-22

Awesome! Wish I had that many K'NEX...

author
Monkeys11 (author)2015-12-23

And is the tan lock the same as a tan clip. Last thing sorry

author
Monkeys11 (author)2015-12-23

And what's the gold tubing splice, y-clip, tubing. And where can I get the knex balls. Thanks

author
Monkeys11 (author)2015-12-23

On the piece count, what is gold tubing connectors. Are they the tan clips? Can I s a picture

author
Gargamel-Knex (author)2015-07-09

Building ...

author
the knex gun boy (author)2015-05-30

super duper cool men i am serius this is great

author
knex akbar (author)2014-07-29

I only have around 950 blue rods and 420 purple connectors, is there any easy way I can decrease the number of those pieces required?

author

Just a quick question: How does the ball activate the scoring counter, and does it rotate by rubber bands or weight alone, or something else? (I'm brainstorming for a secret project and I'm looking at the various scoring mechanisms I can find, any help is appreciated!)

author

The weight of the ball hits a switch to rotate the wheel just far enough for the ratchet to catch it on the second digit. I's a simple ratchet mechanism but it works.

author

Also, is there a way to add more numbers?

author
btrog (author)2013-12-10

I will hopefully make this soon. :D

author
btrog (author)btrog2013-12-10

but the part list is my enemy

author
btrog (author)btrog2013-12-10

but the part list is my enemy

author
www139 (author)2013-08-13

WWWWWWOOOOOWWWWWWW!!!!!!
Haha! Knex Double- Decker- What- The- Hecker Pinball Machine Instructions!
Funny!

author
cinnes1 (author)2013-04-19

I have everything exept the blue rods!!!!! Is there a replacement i could use or do you need blue rods because i only have around 700 of them:(

author

An orange connector and two green rods. You can order pieces on knex.com, they are only around five cents each.

author

thanks very much! i have just bought a huge bundl from ebay which includes the pieces that i need! that means i will be making it!

author

Get building =D

author
2bad4u (author)2013-04-18

this is amazing and is going to definitely be inspiration for my own knex pinball machine which will hopefully be under way in may or june.

A request though, could you separate out the scoring mechanism and make it into it's own instructable in more detail cause that would be awesome!

author
knexpert#10829476 (author)2bad4u2013-04-18

Sure! Give me a few weeks though, got to finish my college semester first:)

author
2bad4u (author)knexpert#108294762013-04-19

I hear that... I myself am in the same situation.

author
knexpert#10829476 (author)2013-02-12

Can you post a picture when it's done? You don't have to if you don't want.

author
OZKNEX22 (author)2013-02-08

I'm up to third layer finish this step tomorrow Ü

author
OZKNEX22 (author)2013-02-08

Sick I'm making right know

author
knexpert#10829476 (author)2013-01-31

Have you made it yet?:)

author
knexpert#10829476 (author)2013-01-05

Yeah I'm sorry, I wasn't thinking how many people actually had this many pieces to make this.

author

I have enough pieces :p

author

I soooooo want to make this!!! (But I don't have 5,700 K'nex to make it...wahhhh!) :-)

author
knexpert#10829476 (author)2012-11-20

You can try to experiment re configuring the area to fit red gears but no, unfortunately I built it only to use black gears, sorry about this.

author
poil87 (author)knexpert#108294762012-11-20

thats okey i think i can use red a yellow gears.

author
poil87 (author)2012-11-19

do i have to use the black gears i dont have any

author
poil87 (author)2012-11-15

do i have to use those black gears?, i dont think i have any
i do have the black chain thought.

author
jameshond (author)2012-10-29

woooooow awsome

author
btrog (author)2012-09-11

Dude how long did it take you to build it?, It is so awsome that i might build it!!

author
knexpert#10829476 (author)btrog2012-09-11

This may blow you away, inventing and building this nonstop too only four days. Go right ahead and build it, tell me how it went:)

author
btrog (author)knexpert#108294762012-09-12

I will build it if i can find all my bule rods @-@

author
knexpert#10829476 (author)btrog2012-09-12

Truthfully, I didn't even know I had that many blue rods!

author
btrog (author)knexpert#108294762012-09-12

Is yours still made?

author
btrog (author)btrog2012-09-12

Ifit is will you mesure it

author
knexpert#10829476 (author)btrog2012-09-17

Length- 4'5"
Width- 2'10"

It's big.

author
knexpert#10829476 (author)btrog2012-09-12

No, that's the reason I made an instructable if it, I can build it again.

author
sandroknexmaster (author)2012-09-14

Great! This looks very cool :)

author
Sorunome (author)2012-09-11

wow, that's looking awesome!
great work there!

author
Shadowman39 (author)2012-09-11

Looks like it's fun to play, great job!

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