Instructables
Picture of Robot Racer
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Hi, Welcome to my instructable !

In this instructable i will show you how to build a Robot Racer !

The robot racer is a fast, fun, easy-to-build elastic band car.

The car uses recycled tubes, bottle tops and even recycled elastic bands.

If you skim through this instructable and like it, it is entered in the Klutz Competition and i really need your vote !!
Thanks and i hope you enjoy the instructable !

 
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Step 1: Materials and Tools

Picture of Materials and Tools
Materials :
  • 1 Cardboard tube
  • 1 Elastic band
  • 4 Bottle Tops
  • 1 Kebab/Barbecue skewer

Tools :
  • Craft knife / Scissors
  • Dremel (only if tube is really thick)
  • Glue Gun
  • Ruler

BE GREEN !
The tube can be a recycled toilet roll tube, my tube originally held a roll of kitchen foil

Post-Men drop elastic bands all the time when their doing their rounds, have a look on the pavement/sidewalk when you next go out

The bottle tops need to be larger than the tube so look on milk bottles or cleaning products !

I got my kebab skewer from my kitchen but any thin rod will do !

Step 3: Drilling the holes

Now we are going to drill the holes for the wheel rod (axle) to go through.

If you have a thin tube you can use the rod itself to poke the holes. My tube was quite thick so i had to drill the holes.

If you are going to drill you will need to find a drill bit that is slightly larger (1mm larger is good) than the stick you are going to use.

Making the hole slightly larger means there will be less friction on the rod and the car will go further. !

Use a ruler to make sure the holes are in line.
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msterrie7 days ago
Very cute!
aswaha yah7 days ago

good ideal

ToTheArk40829 days ago

congratulations

ToTheArk40829 days ago

nice!! lol I didn't really make it but I will. consider it!!

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Jan_Henrik1 month ago

So sweet!! :)

very simple and nice :) ,

but was it body only ??,

if it was complete robot i want to know more about it's content

Goober12508 months ago
Hi tots cool
hey it's really good ..... i tried it ....... working well
mmorris53 years ago
it good
premaldesai3 years ago
I agree, I could not understand the rubberband mechanism as well. It, didnt work for me at all...
sk8r kid 73 years ago
Will you please make a video dont understand.
sk8r kid 73 years ago
I don't understand what you mean at the end part on the rubber band mechanism.Nice video though!
Can someone please explain in DETAIL how to hook the rubber band to the axel, been trying for a while with no luck.

very much appreciate your help!
agarwal3 years ago
i like your car and now im playing with that so please give some mor ideas to me as im in a project of making a future magnetic car
will0w2223 years ago
or you could add a motor lol jk rofl
pie lover3 years ago
FYI!! It is Four not for
What do you mean by "hook it around the axle"? Plz help!
Awesome, would it work if i added 2 or more elastic bands to the drive mechanism
wat.3 years ago
Good! I liked it!
leo1113 years ago
THX!
I will try it with my boy
hellking4 years ago
what is cardboard tube?can you show me?
the cardboard tube when you finish a toilet paper roll, or paper towel roll, or gift wrap
Robotech1124 years ago
You could also add more wait to the back for better traction
henry00454 years ago
how will this thing work???
The rubber band, it works off of elastic energy, when the car is pulled back (or the wheels spun in reverse) The rubber band that was added in step 9 is fixed in plase, the rubber band wraps around the rear axel which causes tension, when the wheel is released (you let it go) the rubebr band pulls backward unwraping the rubber band which causes the wheel to spin.
Im still unsure how this works. Is the rubberband tied to the back axle? is it twisted in anyway. Ive just tied the rubberband like a loop around the back axle and the front stick(thats protruding from the body of the vehicle,(and it doesn't seem to work. PLEASE HELP
please be as descriptive as you can in the instructions
thanks!
What camera/editing software do you use? it looks like HD
almcgo4 years ago
please comment cuz i find that most of the comments i leave dont get replied to. ^hurry^ ^please^ ^LOL^
=SMART= (author)  almcgo4 years ago
no you dont have to :)
almcgo4 years ago
hey do u cut the rubber band bfore u put it on???i will do this instructible as soon as i can.^^cuz^^ ^^its^^ ^^awesome^^ ^^!^
GianniMora4 years ago
could i use the tubing from paper towels
wilt3604 years ago
this really cool im gonna make a lamborghini
DungMachine4 years ago
this is freaken awesome!!!
OBar4 years ago
That's a nifty little toy! Maybe even put a model rocket motor in the aft end, use a long screw through the body about 1 1/2" from the end to keep it from just shooting through the body...Just an idea.
DungMachine4 years ago
Super.
DungMachine4 years ago
this is really really cool.
So simple and so cute...thanx
Heywasup5 years ago
I made one( not as good as yours) but mine is black with red flames wheels are a bit uneven and im workin on the rubber band part!
arhillbilly5 years ago
Hi, It would be really helpful to have a good closeup of the rubber band attachment mechanism on the drive axle. Great instructable!
hanjx5 years ago
i like it (: haha i got d and t project and i need to find three different kind of cars!!! wth -.- but you helped me with one thanks a lot dude (:
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