Introduction: K'nex Spiral Element

An exciting element for any knex ball tower.
Video link at http://www.youtube.com/watch?v=XTc5rsT-Lfg

Step 1: Frame

Construct a frame using 12 grey rods and 16 blue connectors. Alternatively you could use purple connectors depending on the situation.

Step 2: The Crossbars

Add the crossbars using grey rods, grey connectors and lots of spacers. Put 2 connectors on each end of the rod and add the spacers as shown in the diagram. Spacing is crucial so if you are using something smaller than a standard knex ball you should use less spacers.

x grey rods
2 grey connectors per rod
lots of spacers

Its a bad photo, yeh?

Step 3: The Crosspieces

Add the crosspieces in the pattern 3-2-3-2....

Step 4: Compiling the Crosspieces

Slide the crosspieces together so that they only just touch. Ensure that the crosspieces all connect together with the pins locking into the rectangular holes in the corresponding pieces as shown in the picture.

(Thats a completely useless photo.  I don't know how enyone could make comething comprehensive from that)

Step 5: Tubing

Wrap the tubing into the spiral ensuring that all the connector pins are used. When you reach the top wrap the tubing around the uppermost crosspieces so that the track is on roughly 45 degrees to allow easy entry for the balls. In the picture I have added an extra length of tubing to make the track smoother as well as two extra crosspieces for support.

approx 1m tubing required

(Is it bending?  YES.  If you can, use some lss-stiff tubing (like the orange stuff))

Comments

author
Linkin_J_Knex made it! (author)2015-09-06

cool element!

author
Sorunome made it! (author)2010-09-11

Awesome Element!!!!!!!!!!!!!!!!!!!!!!!!!!

author
erikos kostarikos made it! (author)2010-08-30

You really make good instructions. I think you should make your own 1001-balltower elements book. =P

author
KnexFreek made it! (author)2010-02-23

 thats awesome!!!!!!!!!!!!!!!!!!!

author
KnexFreek made it! (author)KnexFreek2010-02-23

 i subscribed

author
Pizzapie500 made it! (author)2009-09-28

Do you have to use knex tubing cuz it's kinda expensive (for a tube) so is there any alternatives?

author
yardking made it! (author)yardking2009-09-29

As yet no other solution to that little issue unless you have a friend who you could get some off. Perhaps you could make the sides out of a curved piece of card but you wouldn't get quite the same effect. Sorry I can't be of any more help but good luck to ya.

author
Pizzapie500 made it! (author)Pizzapie5002009-09-29

Thanks...

author
Pizzapie500 made it! (author)Pizzapie5002009-09-29

Do u know how many 38 pounds of knex is? Also is 38 pounds for $70 a good deal? Please answer ASAP cuz bidding ends today Also is 38 pounds for 70$ better than Lost Mines:Power Tower Crane Big Ball Factory(Crankin' up the Big Ball) Hyperspace Training Tower Trampoline Tower Command-A-Bot(radio control) For $100?

author
doris50273doll made it! (author)doris50273doll2010-01-06

author
Pizzapie500 made it! (author)Pizzapie5002010-01-06

How come you replied to me with a blank comment

author
yardking made it! (author)yardking2010-01-06

OMG where?!!

author
The Jamalam made it! (author)2008-08-17

sweet, its a pity i dont have any roller coaster parts :( 5 stars anyway!

author
Vynash made it! (author)Vynash2008-08-18

wow... I have like 7-8 screaming serpents, and a star burst spinner,and a rippin rocket, and a looping lizzard, and a really really old monster truck set, and some more random k'nex. LoL

author
apples!!!!! made it! (author)apples!!!!!2008-08-18

Cheese and rice....

author
Vynash made it! (author)Vynash2008-08-18

Cheese and rice...

author
apples!!!!! made it! (author)apples!!!!!2008-08-19

I'm waiting to see if anyone gets that...

author
Vynash made it! (author)Vynash2008-08-19

I don't get it. whats it's meaning?

author
apples!!!!! made it! (author)apples!!!!!2008-08-19

It rhymes(sorta) with a phrase that expresses extreme shock and disbelief....

author
DrWeird117 made it! (author)DrWeird1172008-08-19

I think I know what it is.

author
apples!!!!! made it! (author)apples!!!!!2008-08-19

Then you'd be the first so far....

author
DrWeird117 made it! (author)DrWeird1172009-02-24

Yay...

author
Vynash made it! (author)Vynash2008-08-19

oh, ok...

author
darth acexxacer made it! (author)darth acexxacer2008-10-16

yay for randomness!!!!!

author
apples!!!!! made it! (author)apples!!!!!2008-10-16

That wasn't exactly random, more....suited for all age groups....

author
darth acexxacer made it! (author)darth acexxacer2008-10-16

i know its just a random thing

author
The Jamalam made it! (author)The Jamalam2008-09-12

jesus christ d'ya mean?

author
apples!!!!! made it! (author)apples!!!!!2008-09-18

BINGO

author
The Jamalam made it! (author)The Jamalam2008-09-19

=O =D

author
Bugman9 made it! (author)2008-11-21

the purple rails and the green rail connectors are from the screamen serpent are they?

author
yardking made it! (author)yardking2008-11-21

All of the parts can be found in the "Screamin' Serpent" but thats not the only set that has them.

author
puffyfluff made it! (author)2008-08-31

The video is awesome. You should make an 'ible for it.

author
jollex made it! (author)2008-08-17

Very nice, a great ball machine! Finally someone that is as good as Darth Trainman.

author
The KNex Weasel made it! (author)The KNex Weasel2008-08-18

Are you kidding me? He's better than Darth Trainman...in some areas, that is (this one included).

author
jollex made it! (author)jollex2008-08-19

I think he's better than Darth Trainman in quality of his components, but Darth Trainman is better in size.

author
The Jamalam made it! (author)The Jamalam2008-08-18

i think better looking at the video!

author
Doctor Who made it! (author)2008-08-17

wasn't this on weasel's machine? that's name starts with an I

author
I_am_Canadian made it! (author)I_am_Canadian2008-08-17

Inigma?

author
The KNex Weasel made it! (author)The KNex Weasel2008-08-18

It's "Enigma", and that phrase actually starts with an "E". I use one made with orange track connectors rather than crossties. I find that particular style easier and more reliable to use. But this one still works too. I personally think both are equally cool.

author
yardking made it! (author)yardking2008-08-18

Living in Australia it is near impossible to get ones hands on orange trackpieces but I am interested in how you made yours.

author
The KNex Weasel made it! (author)The KNex Weasel2008-08-18
I shall explain it the best I can:

author
I_am_Canadian made it! (author)I_am_Canadian2008-08-18

Ok.

author
arrow shot made it! (author)2008-08-17

jollex this isnt a ball machine, if you look, there are 2 rails. 1 rail is on top of the other, so how would the ball stay in XD. cool spiral thoug...could be used for...stuff

author
The KNex Weasel made it! (author)The KNex Weasel2008-08-18

It can still be used on a ball machine, though. Check out some of the ones I've made (and some of the others Yardking has made as well) to find the gist of this element.

author
jollex made it! (author)jollex2008-08-18

Maybe if you watched the video or read the instructable you wouldn't make stupid comments like this.

author
apples!!!!! made it! (author)apples!!!!!2008-08-18

Lol

author
The Jamalam made it! (author)The Jamalam2008-08-18

centrifugal/ centripetal forces would hold it in, or out in this case

author
iKill made it! (author)iKill2008-08-17

and i quote "An exciting component for any knex ball tower. "

author
Trauts made it! (author)Trauts2008-08-17

Because the force pushing the ball outward (centrifugal force - correct me if i'm wrong) keeps it inside the tracks and it won't fall out. If the ball didn't have a rolling start it would just fall out.

author
dsman195276 made it! (author)2008-08-18

cool, i might make a ball machine one day.

About This Instructable

5,258views

9favorites

License:

Bio: I've had K'nex as long as i can remember but it wasn't until I was old enough to have a credit card ... More »
More by yardking:False platformKnex Basic WeightsInfinity Switch
Add instructable to: