6/11/2016 Syringe Hydraulic Arm | IdeasInspire http://ideasinspire.com/syringehydraulicarm/ 1/35 Ideas-Inspire Science Fans, Embrace the Challenge of Cool DIY Projects Tweet Syringe Hydraulic Arm 415 Syringe Hydraulic Arm PDF – Download in PDF Format Hydraulics is used in many applications we see or use every day. The brakes in an automobile or the liᢴ on the bucket of a tractor are two very common applications. We can experiment with simple hydraulics using plastic syringes for cylinders and small plastic tubing for the hydraulic hose. One definition I read for hydraulics was, “the movement of pressurized liquids through confined spaces”. Like working with gears, pulleys, or levers; a mechanical advantage can be realized by using diᢴerent size cylinders on the end of the hydraulic connections. By trading distance moved with the amount of force the advantage is realized. 51 Like
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Ideas-Inspire Syringe Hydraulic Arm - WPHS VoAGwphsvoag.com/uploads/9/Syringe Hydraulic Arm _ Ideas...finished project. In the end, they had a hydraulic arm that moved in three directions.
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Syringe Hydraulic Arm415
Syringe Hydraulic Arm PDF – Download in PDF Format
Hydraulics is used in many applications we see or use every day. The brakes in an automobile or theliᢴ on the bucket of a tractor are two very common applications. We can experiment with simplehydraulics using plastic syringes for cylinders and small plastic tubing for the hydraulic hose. Onedefinition I read for hydraulics was, “the movement of pressurized liquids through confined spaces”.Like working with gears, pulleys, or levers; a mechanical advantage can be realized by using diᢴerentsize cylinders on the end of the hydraulic connections. By trading distance moved with the amountof force the advantage is realized.
Hydraulic cylinders for liᢴing and tilting bucket are
easily seen in this tractor my father constructed.
The story of my father’s company Champall Manufacturing in a 25 minute video. I created this severalyears ago as a DVD, not the best narration but an interesting story.
History of Champall Manufacturing – Link to YouTube video
Testimonial to Popularity of the Project
Sandy Gady 7th and 8th grade Math,Science, Design and Engineering teacher
“I have done the hydraulic arms with the syringes, they are so cool it’s beyond description. I
used to do them when I taught 6th grade in a small town. We had lots of retired people with
saws, so they would cut up the wood we needed. I then enlisted several of them to come into the
classroom and we taught kids how to use drills, screwdrivers and hammers to assemble the
finished project. In the end, they had a hydraulic arm that moved in three directions. I’ve had
contact with some of these students since, and many of them still have their hydraulic arms 20
years later. They still beam with pride when they talk about them. Cost of materials, about
The base can be made from scrap boards also, best to pick out the better boards as some are
warped. This board was labeled as 1” x 6” but true dimension was smaller.
Making Up the Parts Normally I am making up kits for a class, so I will get all the parts fabricated first. That way few toolsare needed to complete the project and it is safer for them not having to use saws or drills.
Straighten the bend in the straps with
a pliers.
The straps should look like this aᢴer 90 degree bends
Part of the key to success with this project is getting as many of the air bubbles out of the lines aspossible. In automobile brake lines this is known as “bleeding the brakes”. I am not sure I have thebest procedure for this but I will give some suggestions.
Bring the actuator cylinder plunger down, pull the line oᢴ and pull in some water into the line withthe larger cylinder. Put the line back on the small cylinder and push water into it. When it is full, turn
I have been working on building a simulator to demonstrate Pascal’s Principle of fluids using syringesand plastic tubing.
“Pascal’s Principle states that when there is an increase in pressure at any point in a confined fluid,there is an equal increase at every other point in the container.”
What exactly does this mean in practice? For the simulator I used a large syringe that has a pistoncross section diameter of 34 mm and small syringe with cross section diameter of 13 mm. Like othermechanical systems there is a mechanical advantage where distance moved and force tradeoᢴ. Whenthe smaller piston is pushed with a force, that force is distributed equally across the larger pistoncross section causing a greater net force. For the fluid to be spread across the larger cross sectionmore fluid volume must be moved from the smaller cylinder.
For my first experiment I worked from the other direction and pushed the large cylinder a shortdistance of 8 mm which extended the small cylinder a much longer distance of around 60 mm until itcould not move any farther. I calculated this also which was oᢴ the first time but repeated trial provedthat calculated and observed were very close.
For calculations we need the formula for the area of a circle :
Area of Circle = π x radius²
Large Piston cross section area = 3.14 x (34/2)² = 907 sq mm
Small Piston cross section area = 3.14 x (13/2)² = 133 sq mm
Moving the large piston 8 mm will displace amount fluid = cross section x length of movement
Fluid Displaced = 907 sq mm x 8 mm = 7256 cu mm
The movement of the small cylinder should be the fluid displaced / cross section area of smallcylinder.
7256 / 133 = 54.6 mm movement of small cylinder
Actual movement was recorded at 60 mm or 6 centimeters. My calculations included somerounding errors and measurement of piston might not have been accurate.
I have not checked the amount of force generated but did check the amount required just tomove the opposite cylinder. Moving the small cylinder with the large cylinder took a largeamount of force, 1250 grams or around 12 newtons. This is like pushing down on the short end ofa lever. Pushing the small cylinder took very little force.
I built the OWIKit Air Racer kit which uses compressed air to power the car much like how a steamengine functions. It is a rather diᢴicult kit to build with so many pieces and the tiny O-rings. Blogarticle on building OWIKit Air Powered Racer.
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68 thoughts on “Syringe Hydraulic Arm”
asphalt 8hack
Fantastic web site. Lots of useful information here. I am sending it to several friends ans also sharing in delicious.
The hydraulic crane is so fantastic but we need to do it in such a of moving as wellrotating clockwise or anticlockwise.
May 14, 2014 at 3:18 pm
Bill Kuhl
People have done a lot more complicated syringe arms that could pivot inmore directions, I was trying to keep it simple.
Bill Kuhl
May 14, 2014 at 3:40 pm
schalketrikot
I’ve been browsing online more than 3 hours today, yet I never found anyinteresting articles like yours. Personally, if all website owners and bloggers madegood content as you did, the web will be a lot more useful than ever before.|
May 16, 2014 at 1:11 pm
udesh garg
People have done a lot more complicated syringe arms that could pivot in moredirections, I was trying to keep it simple.
thank you very much sir. yeah but the basic principle of syringe mechanism is same i am recent upload this new video must watch :http://youtu.be/IFKjYvZWbrw
August 19, 2014 at 9:57 am
Bill Kuhl
Wow the parking system model you have created is amazing, myknowledge of electronics is not very extensive.
Bill Kuhl
August 19, 2014 at 11:24 am
Anonymous
this is very cool!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
May I know how much amount of milli gram weight does it liᢴ with your syringes……….
October 23, 2014 at 9:53 am
Bill Kuhl
The syringes I used do not have a large diᢴerence in the diameter of the pistonso there is not much of a mechanical advantage. The arm is not designed supersturdy so I would not try liᢴing too much weight with it.
October 23, 2014 at 9:59 am
eduardo
Excellent!!! this is my next project in my school.
I tried to design this so that the wood used needed only a straight cut across. Itwould be best to use a drill press to get the holes straight. The wire pushrodsneed to be adjusted properly to get it close together properly.
Bill Kuhl
December 1, 2014 at 8:21 am
someone
I love it! It is the coolest thing ever. I was trying to do another hydraulic arm andyou inspired me! Well done!!!!!!!!!
December 9, 2014 at 5:41 pm
Anonymous
how do you control the handles with syringes???
December 12, 2014 at 8:34 am
Bill Kuhl
You grab the end of the syringe and either push it in or pull it out. One syringeraises or lowers the arm, the other one closes or opens the grabber part.
Its an awesome idea. I am working on it … Thanks for such a great idea.
January 6, 2015 at 11:21 am
harshita
Im still confused.. How to fill the water in the syringe?
January 6, 2015 at 11:31 am
Bill Kuhl
The syringe has to be pushed in as far as possible with tubing connected. Putthe other end in water and slowly pull back on syringe which should pull thewater back. Try to block the end and then attach it to other syringe that is inthe arm structure. Try to get as little air in the line as possible. Normally youneed a few tries at this and pushing the air out.
January 6, 2015 at 12:39 pm
Bill Kuhl
Also I didn’t mention the water will be in a cup or a bowl. This is where theend of the tubing goes into and you suck it out from.
Thanks, it would be nice if I had actual plans drawn but by following the stepsand pictures plans are not really needed. This design uses pretty inexpensivematerials and the wood cutting is straight cuts.
Bill
January 15, 2015 at 10:00 am
Anonymous
bravo fantastic buhat bakwaas laanet hai tujh pae
February 6, 2015 at 8:01 am
Anonymous
its an awesome project and also self explanitory
February 17, 2015 at 9:43 am
soumyasaswati
this is really cool
February 25, 2015 at 6:13 am
Rohit
very good representation ,simple and understandable. thanks a lot…………….
March 1, 2015 at 3:40 am
lijo
V good. Thanks for the information. The 3rd picture aᢴer heading “aditionalexperiment” The unit u wrote 9cm but the actual I feel is 9mm
I had the wrong picture, it has been replaced. Thank you!
March 5, 2015 at 9:02 am
Anonymous
This page was very informational. My Pre-engineering class doing a project similarto this. I found this page while doing research for it. We will be making roboticarms for a battle ball competition using a magnet and magnetic balls.
March 19, 2015 at 11:51 am
Tania
How do you manage to get all the air out of the syringe?
April 18, 2015 at 3:59 pm
Bill Kuhl
That is a good question I never seem to get it all out. I pull the water throughand push the water very slowly until it is just about ready to push out end andthen try to connect. Sometimes try this several times.
i would like to know in details of this device is it can work just like hand such asliᢴing,pushing,And what is the cost of this device.
July 23, 2015 at 11:31 pm
Bill Kuhl
Building a device like a hand would need many more movable joints, my deviceonly has two. The cost in building my project is pretty low the major expense isthe syringes which are normally found in packs of three. The wood used ischeap as well, my guess in building several of the projects the cost per device isa couple dollars.
July 24, 2015 at 8:16 am
Anonymous
Its superb
July 26, 2015 at 8:25 am
GauravChitte
Its very good
September 23, 2015 at 11:36 am
kuriadavidm
fantastic,i like it,am also completing my project,I think on hydraulic fluid it wouldbe better to use brake fluid rather than just water.keep it up
I have only tried adding food coloring to water so it was easier to see. No doubtother liquids would work.
November 6, 2015 at 7:57 pm
sam
Thnk u bill throuh your idea iam selectd for state level science exibition
November 6, 2015 at 7:38 pm
lipsa dash
its rly very helpful….thakxxxx
December 25, 2015 at 2:20 am
Dr. Proctor
TThanks! I just came across this site and it answers so many questions for me. Ihave just returned to the classroom aᢴer about 15 years in administration. TheEngineering/Technology lab that I have taken over is soooo out of date. Books andcomputers are over 16 years old. The module equipment is about the same ageand have never been used/installed in the lab.
most amazing thing in the world, even more amazing than the spider-man!!!
gopi krishna
Can i know how to find pressure in the syringe..and how much weight it can liᢴ..plzhelp me with these calculations bro..
May 10, 2016 at 10:27 pm
Bill Kuhl
I think an example for a 1″ diameter cylinder would work like this:
Hypothetical 1” diameter cylinder with 10 pounds of force acting down on it. Whatpsi does this create and what would the force upward be created with an identical1” diameter cylinder connected to the first cylinder? Need the area of the piston using Area of a Circle = π x radius² 3.14 x .5² = .785square inch Figuring PSI 10 pounds x (1 square inch / .785 square inch) = 10 x 1.274 = 12.74 psi
Force = Pressure x Area = 12.74 psi X .785 sq in = 10 pounds of force