Ball Machine

Since I have the Ripin rocket set I was wondering if i could make the ball track with the set smoother even though i put railing in the middle. If anybody has a answer post please.

Posted by rexdino5 9 years ago


Ball Machine Help

This ball machine is tall and has 4 paths so I was wondering if anybody had ideas on where to make a fifth path. I have a lot more knex pieces. So I can build a lot of things. And yes I attached a working ferris wheel to my ball machine with gears and chains.

Posted by rexdino5 9 years ago


ball - on - plate PID controller

Hello everyone I work on a project ball on a plate and have a problem making the ball move a circular motion Please Help Thanks 

Posted by aljaur 10 months ago


How many Knex balls do you own?

I recently bought a bunch of ball from knex.com. How many do you have?

Posted by DELETED_DELETED_DELETED_16nato 7 years ago


Record Ball Threatens to Crush You

It's a huge ball of warped records. OK, so there's not much on detail here, but just check out the picture. Link

Posted by fungus amungus 9 years ago


Ball throwing machine !

Hi everyone ! I want to have a ball thrower machine like the one used in Tennis . How can i make a cheap one which throws the ball really fast ? I searched in the site but only got one which uses a bike and throws very slowly . Can I have some help ?

Posted by FOOOFEI 9 years ago


What this group's for

This group is for people who love ball machines

Posted by dance1212 9 years ago


Rolling Ball clock

I was wondering if anyone on these forums think they could make one of these. It is such a interesting time piece and i think it would look great in any modern living room. I want to make one but the kits are kind of exxpnesive and its more fun if you can make it on your own. Here is some pictures.  Enjoy and thanks for your input :). Toby Mac

Posted by tobymac987 7 years ago


3D printing something totally Round?

Hi everyone.  I have ordered my 3D printer and in the mean time, I am building my files I will be printing.  1 of them is rounded and has no flat surface.  How do I go about printing this?  Do I need to create a base to print it on or will the product I use to make the bas sticky be enough?  Any help to this beginer would be appreciated. K

Posted by kwrcst 3 years ago


LED Juggling ball

Hello, I want to make some glowing juggling balls (using LED probably), but I have no idea about what ball to use, how to make it turn on and off and how to balance it. I tryed the led ping pong balls (link at the end), but they're too small and light. Any ideas? How do the glowing balls work (those that from Yo-ho, for example)? Thanks. LED Ping Pong Ball https://www.instructables.com/id/LED-Ping-Pong-Ball-Improved/

Posted by Kokkan 8 years ago


Massive Lego Ball Machine - *proper* engineering ;-)

My eldest sent me this very satisfying seven minutes of engineering: Enjoy...

Posted by Kiteman 3 years ago


The instructions on the YouTube video"Ball Machine 2" FOUND.

Http://knexinnovation.net/forums/viewtopic.php?f=20&p;=8474#p8212Many of you have been wanting to find out how DeDean16 made his ball machine on YouTube called "Ball Machine 2". Lucky for you, I've fount the link to the REAL instruction booklet that dates back to 1993. I hope you enjoy building this wonderful ball tower.

Posted by knexpert#10829476 9 years ago


Ajleece's first attempt at a ball machine

O.k. guys. I dont have that many peices nor do i have any chain or a knex ball (i have been using ping pong balls) but this is what i have made. all it does is goes to the top using a custom made chain lift and goes round a corner, comes back to the bottom, goes around another corner and starts again. I hope you like

Posted by ajleece 9 years ago


LED Dream BAll how can I fix this? Or rig it differently?

I have (3) of these LED DREAM Ball lights that come with a remote to change colors all three of stopped working, Im thinking its the base that gives out- but what other light source could I put inside of it to make it work again?

Posted by franklydoreen 9 months ago


guide to k'nex ball machine elements

Hi there! I noticed how hard it is to find elements for your k'nex ball machine. So I decided to make a guide so you don't have to waste time searching for elements! So, if you have made a ball machine with new elements, please tell me and either post a link or attach photos so I can add them to a future instructable!     K'nexers who have given me permission to do this with their elements:       Sandroknexmaster

Posted by www139 3 years ago


Knex ball machine preview: The Asteroid Belt

My first ball machine the asteroid belt is going to be 4 feet tall, 8 paths, and 2 lifts. Sorry for no pictures. I have to take down Dysprosium (which my brother never finished) to build the asteroid belt because we share our knex. The next update will be in exactly 4 weeks.

Posted by Purple Waffles 7 years ago


Light balls: juggling, toys, etc.

This idea just popped into my mind and I thought it wouldn't be that complicated to make, maybe even in time for christmas! I was thinking about juggling balls that would light up upon movement, except I don't know how to make them. I don't know how big/heavy motion sensors are, but couple them with leds and a battery, stick everything inside a plastic ball and presto.. or am I simplifying too much?.. Better than that would be to use the power generated by the movement to light up the leds, somewhat similar to Powerballs, but that I have no clue as how to do.. So, any ideas on how to make them?

Posted by snuffmeister 9 years ago


My first tennis ball mortar scars!

This is hilarious , i finally built my tennis ball mortar, i "accidentally" put way to much hair spray in lol. It launched well, but blew the back off so im going to have to build a new base lol. I have some pictures to show it lol. the sound was so loud that i can not hear a thing out of my right ear except a loud ringing. is that a good thing?lol heres the pics.

Posted by XI3 10 years ago


3 axis rotation system

Hello everyone! I was hoping someone here with better understanding of engineering or just a fresh take on the problem can help me out. Im working on this art project where I have a metal ball, aproximatelly the size of a basket ball, and i wanted to make it rotate continuously on a stand, in a way that all sides of the ball were shown eventually. I've thought about this 3 axis sytem where each axis would rotate in turns to keep the ball rolling in diferent directions. Basically its like the insides of an analog mouse where the ball would rotate the gears and give the input of the location of the pointer, except here the gears should rotate the ball. I've been trying to build something close to that with some K'NEX and a simple rotation engine that came with it but im not getting nowhere. I thought of building the gears myself but im finding it hard to come up with a plan. What would the gears be shaped like? What size? what distance between them? Even with trial and error would take me forever @.@ Anyways, any input, ideas, comments apreciated, Thx!

Posted by raposa 7 years ago


How on Earth do you make a china ball paper latern?

I have searched all over the internet for a simple how-to when it comes to making those sphere-shaped lanterns , and no one seems to have bothered to do any. I'm interested in making some large ones but the first attempt didn't have that clean round look. Has anyone made one or know of a tutorial? Hopefully one with pictures or video.  thanks!

Posted by Ed Van 7 years ago


art: bowling balls

I began collecting a few bowling balls with the intention of making decorative art in my flower beds. I have a neighbor across the street who undoubtedly has so much disregard for me that he reported me to the city code enforcer who said bowling balls were against code. I had a supervisor come and look at my yard and the bowling balls and he said it is art. The other code enforcer has required that I "anchor" them down. Does anyone have any suggestions? I'm sure no matter what I do the neighbor will not like it. He hates my trees. I have humongous oaks and lots of plants and shrubs. He has complained for 16 years now. He sits on his front porch and watches everything I do. He reported I had rats. They found the rats nest on his property. He claims the termites come from my home. Believe me, I have a small brick ranch that I do all the upkeep on. I think he just can't stand it that he can't tell me what to do like he does the rest of the neighbors. I'm a woman-maybe that's his problem. Anyway, how do I "anchor" my bowling balls without taking away from the art of them in my flowerbeds? Please help me. I want to abide by the city codes.

Posted by Bluejean1 3 years ago


Knex Ball Machine Video + Pictures!!!

Video: http://www.youtube.com/watch?v=tBL8ZZ62Ysc This is a knex ball machine i made a while back which i just never got round to filming so here it is Paths: 7/8 if you count the race element as two Pieces: Used about 6500 Elements: i think 15 in total 13 different and i created one or two my self I sure i owe a lot of people credit so if you think you deserve credit because you've seen something that you made or whatever don't get stressed out just post a comment and i will put your name below Credit: Darth Trainman   I havn't thought of a name yet so any sugestions would be much obliged if anyone has any ideas

Posted by The_Lost_Carrot 7 years ago


Tennis Ball Cannon

Alright, so ive been into making all sorts of cannons whether they are pneumatic or hairspray, and recently I've been wanting to build a pneumatic tennisball cannon. i came across halve a dozen empty fire extinguishers, i am still deciding if i should use one as the chamber. i am using an electronic sprinkler valve and a 2 1/2" barrel i am also getting a 12 volt (dc) car air compressor (125 psi) and i am going to incorporate this somewhere in the cannon, the air compressor is really small so i could make it built in. i really want to make this cannon portable but i am concerned about the weight of it with the fire extinguisher tank, Any Ideas?

Posted by struckbyanarrow 8 years ago


I need help

I am looking for a scope for my paintball gun and I need some help. My gun is called the MR-1 and was manufactured by Spyder. I have an 18 inch and a 21 inch barrel for sniping but I need a good scope now. The scope should be 30 USD or under that uses a dovetail mount. Thanks in advance for the help.

Posted by Pat Sowers 10 years ago


knex ball machine contest

A knex ball machine contest. there will be 3 types of ball machines there is smallest ball machine,  most ball machine elements,   and biggest ball machine.  submit an instructable and i will anounce the winners. when we have enough knexers submit thier instructables. the 3 winners will get a sub from me;)    

Posted by cupcake43 8 years ago


Dragon ball drawings

 Please post your drawings of dragon ball, dragon ball z, or dragon ball gt characters. 

Posted by S5114 8 years ago



How to make a ball bearing rollercoaster

How to make a ball bearing rollercoaster

Posted by maximaal 6 years ago


Ultimate knex ball machine King/Queen

 Ok look at the picture below if you can incorporate a ball rolling down a rod in a ball machine you would be the ultimate ball machine king queen.

Posted by sprout_less 8 years ago


Pimped out big ball factory!

New big ball factory instructions coming out soon!! features:jump, tightrope, big loop, freefall, and more!

Posted by coolknexcreations 8 years ago


What Should I Do With 100+ Tennis Balls?

Tennis Balls - weird color, weird shape. I have Acquired over 100 tennis balls recently but have no idea what to do with them. So I am coming to you guys for answers. I don't want ideas like "Tennis Ball Mortar" what do you think i did with the first 100 balls? Any ideas?

Posted by bumpus 10 years ago


A tennis ball-chucker the dog can operate..

I had to post this one: a tennis ball-chucker for dogs, operated by dogs.The dog loads it, and it fires automatically.

Posted by gmoon 10 years ago


magnetic ball bearings

How do  magnetize my own ball bearings for making magnetized Fullerine geometry? Sorry cant find the right word for it, i'm obviously scientificaly challenged.

Posted by craftyv 7 years ago


Making A Ball Machine

I'm building a ball machine but I need some ideas on what kind of tower I should use for it. Give me ideas but keep in mind that I have limited pieces.

Posted by jollex 8 years ago


K'NEX Guns or K'NEX Ball Machines? You Decide.

Which is more popular on Instructables.com: K'NEX guns, or K'NEX ball machines? Please post your opinions below. (Note: Credit for the ball machine picture goes to sandroknexmaster, and partial credit goes to dr. richtofen for the gun)

Posted by The Knex Inventor 2 years ago


Arduino-powered ball balance machine

This wood panel has the ability to move a ball anywhere it wants thanks to Arduino, servos, and processing. If the noise could be cut down this would make for a very cool installation. Origamata via Make

Posted by fungus amungus 8 years ago


Community Built Ball Machine.

Hey guys and girls. I'm planning to build a community built ball machine. IE, YOU suggest the elements. I'll build the lift, but either show a picture of the element, or a link to where it is used, and I'll hopefully have it finished soon.So, any suggestions?

Posted by ajleece 9 years ago


knex ball machine contest

Hello everybody, this is a contest for ball any ball machine, elements, lifts, or ideas. you may enter as many times as you have ideas. the winner will get a year pro membership and a patch the second will get three months pro membership and a patch the third will get a patch. the contest will end at January 31, so there is time enough. good luck, Martijn

Posted by martijnb95 6 years ago


newbie knex ball machine tips

I have attempted to make a ball machine numerous times and failed. I have a good sized lot of knex yet i am stuck with roller coaster chain. Also i have no tubing. Can you please help me?

Posted by bnsfwarbonnet 7 years ago


How can I make an automated ball pitching machine?

Can anyone show or tell me how to make a ball pitching machine, similar to the ones they use for practicing baseball and tennis? I want to make one for my dog. Thanks for your help in advance.

Posted by Lulebelle 4 years ago


DIY NYE Ball Drop

Hello all! I am seeking some suggestions on creating a mechanism for dropping a 20-25lb. New Year's eve ball. We used this Instructable to make our Godzilla sparkleball as an NYE ball, and it's pretty rockin' (thanks vwluvrs). We dropped the ball from my friend's attic last year, lowering it by hand. Manual lowering is SO last year, and we're looking to improve the drop by automating the process. Oh, and we'd like to keep this at $20 or lower :) Any ideas? Thanks for any input! I will be happy to post a vid of the drop, even if we end up lowering by hand.

Posted by teej 6 years ago


New Ball Machine Preview - Ideas Appreciated

This is my new UNFINISHED knex ball machine. I haven't put much up recently, but I've been working on this. I got more knex which is why this is larger than my earlier stuff (Thanks to silentassassin21 for selling me his), and because of this I want to make a large rifle after this so keep that in mind. This is a preview of an unfinished machine so ideas for the last 3 or 4 paths are welcomed. You may note it uses 2 types of balls. If you use my idea for the separator of sizes of knex balls I'd like credit. (If this has been done before I would be surprised because I've never seen one like this before) Thanks for viewing!

Posted by shadowninja31 7 years ago


Going paintballing with my church

Saturday I am going paintballing with my church. We are going to Promised Land Paintball. Does that sound wierd to you because alot of people find it odd.

Posted by Matt21497 9 years ago


How to make a plasma ball

Making a plasma ball is something i have always wanted to know :]

Posted by blckscab 10 years ago


Urban soccer, tips, and tricks from all the way from Argentina.

I there guys, well, have 18yrs I played for all my life soccer (here is called Fùtbol), Almost get to the 1rst divison , but i got this lession and now am unable fro a year. Anyway, if you have any question, about this, make now. In this week im going to uplod my videos

Posted by Ik0 9 years ago


what I should use for the DBZ battle Armor V1 (non-shoulder pads)

Sadly I'm doing a change of plans for Free Comic Book Day instead of being a Trekkie there I'm gonna be as a Super Saiyan with the V1 armor on without those huge shoulder pads I just need ideas on what I should use to create this Armor to go with my Blue Lens Scouter I've bought from ThinkGeek. What kind of Foam or material that is strong and sturdy to withstand me moving around in. I'll gather up the list once I have the main base of what I should use to make this.

Posted by SuperScourge 3 years ago


K'nex tall ball machine

For those who don't read their mail or don't have a subscription, here's my tall ball machine: https://www.instructables.com/id/Knex-tall-ball-machine/ (youtube:) http://www.youtube.com/watch?v=PB6b8GtekT8 Have fun watching!

Posted by floris2burn 8 years ago


Ball lever

Hi, I am making a ball machine in witch the balls enter the rotating lift from the side. I need a lever to release only one of the waiting ball to the lift (or letting one at the time through) Who has a suggestion?

Posted by imans314 8 years ago


New Ball Machine Element

This is to show you guys a new ball machine element I invented called fireworks. It's also kind of a little teaser for my ball machine that is currently in construction, Project A.

Posted by jollex 9 years ago


Pulse Knex Ball Machine

This is Pulse, a Knex ball machine that I built because I was BORED AS HELL. It has two paths, and a newly-designed ball rack at the bottom of the lift. I also altered the ball claws on the chain lift. If there are a lot of requests for instructions, then I may make instructions. PICTURES: http://www.knexforum.com/members/phrasmotica/albums/pulse-knex-ball-machine/ Enjoy! -phrasmotica- Here's the video:

Posted by DELETED_phrasmotica 7 years ago