K'NEX Crossbow

by JamesY

10K922

Intro: K'NEX Crossbow

This is a simple crossbow using some K'NEX and 1 rubberband. It's fast, easy, and it shoots a K'NEX projectile really fast

STEP 1: PARTS

For this project you're gunna need:

2-red connectors
3-green connectors
6-yellow connectors
4-yellow rods
1-small green rod
8-small white rods
1-red rod
2-grey clips
1-rubberband

STEP 2: FRAMEWORK 1

Use the picture provide to help you build the first part of the frame.

STEP 3: FRAMEWORK 2

Once again make these 2 peices using the picture.

STEP 4: Finishing the Frame

Attach the 2 pevious peices and the red rod.

STEP 5: Firing Mechanism

Attach the rubberband to the 2 grey peices like so.

STEP 6: Finishing Up

Attach the firing mechanism to the top of the frame so it looks like the first picture.

STEP 7: Firing

Now you're ready to fire. For ammo you can use any K'NEX peice with a hole than you can slip over the rod and that has some plastic on top to catch the rubberband. In the picture im using a red connector because they seem to work well but it really dosen't matter. Thanks for viewing my instructable, this is my first one so any comments on what to do differntly next time would be helpful.

STEP 8: MOD

I have recently discovered that when the first rubberband i use snapped because it was too worn out, i replaced it with the same kind of rubberband but this 1 was more powerful so, when i went to fire the frame came apart. I have made a mod that stops this from happening by adding 2 more rubberbands and 2 white peices. I have also discovered that the grey clips are the best ammo to use. After i made my mod and tested it with the grey clip this thing was shooting so fast it bounced off the wall from about 20 feet back, came back and hit me. I also went outside and shot it and it measured at about 42 feet with wind. This weapon is devastating at point blank (0-6 ft.) Try shooting 1 of your friends...or enemies. Also on the picture in the firing step i have it flipped the wrong way so flip it over when firing also when using the red peices they should be facing downwards with the hole at the top. I hope this clears some things up

21 Comments

petey2000 10 years ago

ugliest crossbow ever mine our awesome

nbagf 14 years ago

 if so many people like it then why does it only have 2.6 stars?

ppieters 16 years ago

way cool!! when I stand a little from a wall and the fire at it, it bounces right back! now thats powerful!

kibbler 16 years ago

ur right its completely awsome

Easy Button 17 years ago

wow this thing is powerful with only like 20 pieces

cstrike pwner 16 years ago

i made one stronger and it only takes SIX pieces!!!!!!!!!!!!

345138 16 years ago

heres a mod.. pull both back it makes it srtonger

gunboy 16 years ago

nice gun and you can make it with 20 or so piececs.

paulm 17 years ago

not a crossbow. unless it draws power from the bow material (the plastic peices) its using the rubber band to fire. my crossbow uses the bow.

KamikazeSniper360 17 years ago

Wow. This is a great gun for me cause I don't have many pieces. It shoots a good 15-20 feet for me.

gazz007 17 years ago

how the hell u use this

Easy Button 17 years ago

wow i got it beter now i made some mods and it gos like 62 feet and its stablelized beter.....

JamesY 17 years ago

thanks and yea the fist picture was on my counter lol the others were actually on the floor which looks really similar.

crestind 17 years ago

Knowing that you have a limited number of pieces, this is a good, basic crossbow. I spy Corian countertops.
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