This hydraulic arm was a homework for my daughter's school. The idea was to create a toy from recycled materials. Hope you enjoy.


Step 1: Materials

- Pieces of cardboard
- 8 syringes
- 1,5 meter hose (aquarium pump)
- 15  Plastic clamps
- 2 screws with 3 washers and 4 nuts
- 1 piece of wire (clothespin)
- 1 wooden stick
- Water, paint, glue, knife, ruler, etc..
<p>I favorited this as soon as I saw it. I really love the idea, and the vibrant colors! Thank you for the time you spent making this instructable, I really enjoyed it and was educated in hydraulics through it.</p>
<p>I made something just like this there really awsome</p>
<p>Show us yours!</p>
<p> this is mine yours is more advanced</p>
<p>Nice idea!</p>
ok I will send it tommow
<p>Nice! :)</p>
I made a hydraulic crane with detachable parts and a bucket using all but popsicle sticks, cotton swabs,cardboard and hot glue ;that costed me around $2 and works quite good, tell me if you guys would like me to make a tutorial!!
<p>i had something like this before. then i broke it with over pressurizing it.</p><p>so i might build this. becuses it doesnt need to be pumped up.</p>
plese give us measurements
<p>Hello . Unfortunately this is an old project and I missed the measures . Will depend on the size of syringes you buy.</p>
what can it pick up in particular cause I have to do it in school
<p>Some plush toys and some origami . The claw is not very strong . It was meant only to showcase the work of pistons in a didactic way .</p>
can the claw pick up a chalk board duster
<p>With a feel changes in design,i guess :)</p>
<p>Thanks For Your Help. It will surely help me.</p>
<p>No problem! Then Show us your arm.</p>
<p>where did you buy the syringes?</p>
<p>I bought at a pharmacy.</p>
<p>this is awesome.. I really loved it</p>
<p> I do not need the demensions to each part but just out of curiosity, (hope I don't get killed like the cat), what is the size of the whole project put together? I don't even need exact numbers an estimation would even be fine.</p>
Made a few changes but got the main idea from you, thanks! ;)
Wow thanks a lot, this design was AWESOME. Look at my profile picture, I'm finally finished with it.
Busy making it and it's really FUN!!!
<p>Also enjoyed myself.</p>
nice design
As simple as you and your brains rock
i want the measurements of everything !!! please
Hi! If I find the claw, I will put measures.
wow extraordinary
5 jalapenos!!
Obrigado! <br>
plz can i know the size of the syringes used
Hi Sorry for the delay in responding. In this project, I used 3ml syringes. I do not know the size because I'm not home. As soon as I can, will check the size of them. Although size does not matter much. It depends on the size you'll want to build your mechanical arm.
This is really cool! Thank you so much for sharing this! I have some extra <a href="http://www.pacifichose.com" rel="nofollow">hydraulic hose fittings</a> that I am not using right now. Maybe I can make something like this! Thanks again!
Absolutely brilliant! I never would have imagined using syringes like that
5 stars :) <br>
Thanks ! <br>

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