Hydraulic robot made of cardboard and scotch duct tape.

[ please give me a vote for the contest if you like the instructable, thanks]

I always wanted to do this project but in all the guides i always found that you need some kind of wood cutting skills and/or tools. So … I decided to make a simple hydraulic robot with cardboard, reinforce and hold by duct tape that anyone can do.
Duct tape not only is strong but also looks pretty cool; it gives the robot a cool metal like look and it holds everything together really good.

Step 1 What you are going to need!

FOR THE BODY OF THE ROBOT:
- Cardboard box (the harder the better, I used a pizza box but you can used any type because we are going to reinforced with the duct tape)
- Scotch Duct tape (I like the silver because the metal like look)
- 3 machine screws 3 inches in size with nuts
- 2 machine screws 1 ¼ inches in size with nuts
- A flat and square piece is wood ideally 12 inches by 12 inches for the base to attach the robot
FOR THE HYDRAULIC SYSTEM:
- 8 syringes (you can get them at any pharmacy without prescription just say you need the type that is use for cough medicine, you can’t put a needle on those. I got mines at CVS and Walgreens for free)
- 6 feet of clear tubing ¼ “x .170” (got mine at home depot for $3)
- Water
TOOLS:
- Scissor
- Ruler
- Pen
- Drill
 

Comments

[justjonty]

So good... well done... great pictures! Thanks for posting!

[sdsddsdsdssdds]

So good... well done... great pictures! Thanks for posting!

[sdsddsdsdssdds]

what do we need about dill

[paymani]

Very good and very interesting
But how can download the entire file in PDF format
Thanks
PAYMANI
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[cekpi7]

you need to have pro account

[swapnil1997]

how to fill the water in tube can u just tell me.....we are trying but the air gets in so how to do it just tell us .....PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! so that our project get selected for science fair....!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!

[WYE_Lance]

for 10ml syringes:
1. Fill up one syringe all of the way
2. attach the tubing and push water through it to remove air
3. with the end of the tubing submerged, fill back up to 10ml
4. attach the other syringe. You now have a simple hydraulic system

For smaller than 10ml you may need to remove air from the tubing by utilizing the siphon principle

Hope this helps!

[swapnil1997]

HATS OFF TO YOU SIR .........THE HYDRAULIC STRUCTURE IS SUPERB..........HATS OFF!!!!!!!!!!!!!!!!!! HATS OFF..........GOOD JOB!!!!!!!!!!!!....

[jsmichinski]

Right? i thought at first that mabye the wire is sturdy, so it wont bend and friction will move it??? but im not entirely sure

[hshah7]

Hey Nelson its really good to guide any one....man. ..I..I really like it
and did you any b.tech level projects?

[cjrockz]

Thanks so much we had to build a hyrdrolic robot for technology and my group was stuck on what to do until we saw this!! It hasnt been marked yet but hoping for really good marks it looks so cool!! Thanks again

[athiraskumar]

thanks a lot sir. i was in a big confusion to make a project for physics. and you have made my day today. once again thanks. please bless me to complete it successfully. and sir i need some similar nice nice projects for biology and geography too. in geography the topic given to us is globalization.sir pls reply soon.
athira

[FuzzyBearGeek]

Fantastic. Way to go!!!!

[Sooraj C]

This is fantastic and useful can u sent this into my account please
my account [e-mail]

[vfabrero]

your project is fantastic...very innovative........good job.

[doomday341]

im almost done with this project, but i altered it and added this ---> http://www.instructables.com/id/Paper-Claw-20/

[Justdoofus]

You are extraordinarily endowed, my friend. I am pleased to see things like this being made. It truly puts a smile on my face. I like the initiative of using syringes and water. I tried air, and that worked virtuous too. A reduced amount of weight that it could lift, nevertheless.. it works.

[johnnyalbrite]

what are the strings for and how do ypou put them on?
xoxoxoxo
johnny <3

[johnnyalbrite]

also, the water keeps leaking out of the syringes. how did you attach the tubes and syringes together?

[Nelson_Yepez]

Thanks, the way you set up the tubes it up to you. The only really advise i can give you is make sure that the tube is long enough, the best way is to measure with all the parts of the arm fully stretched out.
As far as holding the syringes, the diameter of my tube happened to fit perfect the tip of my syringe, not to tight not to loose. If this is not your case you can just use some hot glue gun.

good luck with your science fair.

[johnnyalbrite]

this is really good
my friend and i r doing this for our science fair and we are sorta confused about the way the tubes are set up.
thanks
xoxoxoxoxooxoxo

[johnnyalbrite]

WHat are the exact measurments of the cube with the yellow box around? xxoxoxoxoxooxoxoxooxo :)

[Nelson_Yepez]

wide, is the same measure as the cube right under (the one with the red lines)
there is not exact measurements for these pieces because the thickness of the cardboard and the amount of layers of tape is a variable thats is different to each person.
The best way to go is to measure and make this pieces as you go to make sure they fit right.

[minacan121]

how can the pin move when it is attached to the base wood?

[Nelson_Yepez]

its only the top part of the pin, the bottom part (needle) was removed and the use some hot glue.

[rahuln3000]

its really cool but i think it would be really helpful if u put the template original size co that we can print it out especially for the claw it is really confusing.
but its a reallly cool and time passing activity thanks.

[tim1]

This is really cool!!!!!!!!!!!!!!!!!!!!!!!!!! :)

[Nelson_Yepez]

Thanks

[rj764]

this is tite

[Nelson_Yepez]

thanks

[johnsimo95]

really good job but i was wondering if yours can lift any loads. I made one similar to this a 2 years ago and it couldnt

[Nelson_Yepez]

I was limited because of the type of syringes that i had, they were the type that don't have the black rubber piece its all plastic so if there was too much vacuum air would start to leak in. If you get bigger syringes you increase the strength of the arm and you can even use two or more in the same part.

[rj764]

good gob

[Nelson_Yepez]

Thanks

[Derek Smith3]

Duct tape not only is strong but also looks pretty cool; it gives the robot a cool metal like look and it holds everything together really well.

[MadBricoleur]

GENIUS! just thought of a great use for it. if your bedroom light is far away and you're too lazy to get out of bed to turn it on at night, use one syringe to attach above your switch to flip the switch, run tubing all the way to ur bedside, and use another to turn it on or off.

[yusuf786]

Hey im new here so by the way what is this used for ? anyways i love the it hehe

[Nelson_Yepez]

Thanks, well this is a pretty simple design of a robot with a hydraulic system but this can get really complicated and even useful if you have enough time and imagination.

[yusuf786]

oh okies thanks for yeah info :)

[bigbum]

On your C part have you left out a Measurement wear it gose down
to 1/2" should this be 1 1/2" ?