Introduction: Knex Lightsaber Design

Picture of Knex Lightsaber Design

Hello there,

I made a knex lightsword design. Due interest I decided to post instructions for this. Its the first instructable that I have made, so if something is unclear or not good, feel free to say so :)

P.S. Im not English :d

Part list:
4 black rods
4 small grey gears
4 grey connectors
1 small wide wheel

2 orange connectors (in brown)
3 white connectors (in black)
8 red connectors (in grey)
2 yellow connectors (in white)
9 white rods (in black)
3 green rods (in black)
2 yellow rods (in grey)
1 black rubber band (from trekker set I think)
1 red knex man hand

yellow blade:
32 yellow connectors
31 yellow rods

white blade:
43 white connecters
88 white connecters
3 grey rods
13 grey connecters

This has been a really fun project to do!

I hope you liked it :)
Please Rate & Comment :)

And Be Creative!

~ Kairah ~

Step 1: Step 1: Making the Handle

Picture of Step 1: Making the Handle

Follow pictures:
Put the two gears on the small black rod, and place it between the two large rods.

Step 2: Step 2: Making the Handle

Picture of Step 2: Making the Handle

Follow pictures.

Step 3: Step 3: Making the Handle

Picture of Step 3: Making the Handle

Now you add two black rods.
- Slide all parts to one side.
- Connect the black rods to the black snowflake and gray 3-connectors.
- Slide those to the left and connect the next parts, repeat this until the black rods are connected like picture 7.

Step 4: Step 4: Making the Handle

Picture of Step 4: Making the Handle

Follow Pictures.

Picture 2/3/4/5
connect a gray 1-connector + small black rod to the black snowflake, with the gray connector holding the gears in place.

Do this at all gears

Picture 6/7
Slide in a gray (yellow) rod in the two 3-connectors on both sides.

Picture 8
It should look like this.

Picture 9
Make this.

Step 5: Step 5: Making the Handle

Picture of Step 5: Making the Handle

For this part you need the "red knex man hand" like the ones shown in the first picture. And make the parts in the second picture.

Put them on the ends of both small black rods that you added in step 4.

Step 6: Step 6: Making the Handle

Picture of Step 6: Making the Handle

Ok, now you need to take the parts made in step 4 and put the rubber band on it as shown in picture 2 and 3. Then connect the parts to the handle. You can either have the rubber band on the front or the back of the handle. I put them on the back.

Step 7: Step 7: Making the Handle

Picture of Step 7: Making the Handle

Take a small and wide wheel, put a small black rod on it (not shown on the picture). Then slide the tire off the rim just a bit, so it will fit around the black snowflake on the end of the handle.

And the handle is done! :D

Step 8: Step 8: Making the "Laser Light"

Picture of Step 8: Making the "Laser Light"

I did the yellow laser with yellow rods and connectors. Just snap some together, but make sure that you keep two rods sticking out on one end so you can put the handle on there.

Tip: If you dont want to break your fingers on this... use a screwdriver to push some parts on :)

Step 9: Yay! Its Done!

Picture of Yay! Its Done!

Step 10: Some Variations

Picture of Some Variations

Here's some other variations that i made.
I put a white blade on it. and replaced the two gray (yellow size) rods and the two pieces that are on the gears with 3 bendable red rods, which looks pretty neat :D


super knex builder (author)2011-10-16

you should try to make the insyructions a little more detailed, but otherwise pretty cool

k-n-e-x(leaved ibls) (author)2011-01-13

that white light saber is hard to make..

the master 2 (author)2010-06-15

What does the rubber band do?

NatNoBrains (author)the master 22011-01-09

Your mom

hedzup456 (author)2010-11-01

you should try and make a system where when you press the switch the blade comes off.
That would be sweet
Im building know!
I hope you listen to my idea
i have to stop talking know

k-n-e-x(leaved ibls) (author)2010-10-13

how do you attach the wheel??

Just slide it on the 8-connector.

osi (author)2010-08-18

You inspire me to post mine... but I know I would get spammed saying I copied you... anyway 5*

Randomguy65 (author)2009-12-18

I made a red one

Senior Waffleman (author)2009-11-04

the white ones way better 5*

Shadowman39 (author)2009-10-02

Great instructable, 5/5 :-)

Kairah (author)Shadowman392009-10-03

Thank you :)

s0lekill3r (author)2009-06-23

Thanks for posting instructions, I'll build this tomorrow.

Kairah (author)s0lekill3r2009-06-23

No problem :) What colour are you going to make it?

s0lekill3r (author)Kairah2009-06-24

Yellow or green.

jollex (author)s0lekill3r2009-06-24

Green is hard to make, just a head's up :)

Shadowman39 (author)jollex2009-10-02

Making it metallic green would be easier.

Dante9030 (author)jollex2009-07-07

just spray paint it

Mr. Muggle (author)2009-09-23

nice, by the way, are you dutch

Kairah (author)Mr. Muggle2009-09-23

Thanks, yea I am dutch.

Mr. Muggle (author)Kairah2009-09-23

he, word lid van mijn groep voor hollanders

Kairah (author)Mr. Muggle2009-09-24

Okay :P

jollex (author)2009-06-24

This is a really cool instructable, I made one with a red blade, check it out.

jollex (author)jollex2009-06-24

I didn't like the look of the red one, and it was weak, so I made a blue one.

knexjay (author)jollex2009-09-14

funny its like saying that i hated the red mustang u bought so i made u get me a blue one tee-hee btw i was almost done with my blue one :D D:

DJ Radio (author)jollex2009-06-28

Evil. :-P

jollex (author)DJ Radio2009-06-29


DJ Radio (author)jollex2009-06-29

:-P Im talking about how red lightsabers are used by bad guys in star wars.

jollex (author)DJ Radio2009-06-30

And I'm talking about how you reply to every comment I make, lol :P

DJ Radio (author)jollex2009-06-30

I dont reply to every comment you make, that would take forever. :-P

Madrias357 (author)DJ Radio2009-07-11

Good one. Though, I'd be on Jollex's side. Give me a week, I'm making one... My way. *Evil grin*

Kairah (author)jollex2009-06-24

Thanks :) Yea I tried to make a red one before to, (not with the black connecters though).. but it was kind of flimsy as well. The blue one looks good though :P

knexsuperbuilderfreak (author)2009-08-28

im gonna make a red one and then a purple one =)
nice ible

Awesome :)

DJ Radio (author)2009-06-23

this is sooo tight! 5*

Bartboy (author)2009-06-23


5* and Faved.

About This Instructable




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