Introduction: Pedal Powered Tennis Ball Launcher

Both cleanly powered and built from 2 recycled bicycles, scrap steel and wood, leaking 5 gallon water jug and a lacross stick, our pedal powered tennis ball launcher was created as a unique entry for the innovate or die pedal powered machine contest.
It allows players varying in skill levels to practice to be better at both tennis and cycling. The launcher is towed to the court on its built-in bicycle trailer. A bike is secured to it and functions to drive the device. Pedaling the cycle as one would on a trainer drives the two launcher wheels. The cyclist then aims using the bike handlebars to and pulls the lever to launch balls to the hitter.

Check out the High Speed Videos (Slow Motion) at 300fps and 600fps of the launcher in action, and other information about the launcher and it's construction:
http://danielbauen.com/make/index.php/pedal-powered-tennis-ball-launcher/

Construction Detail Video:

Comments

author
gmendez3 (author)2015-01-14

hahaha amazing Bikemachine! It´s so smart!

author
Blaise_Gauba (author)2011-10-30

Ingenious! Very impressive!

author
urchit (author)2011-09-09

meraviglioso very very good

author
fozzy13 (author)2011-09-08

Awesome idea, and great video!

author
deqwer (author)2011-08-11

This is great can you post a instructables?

author
rocketman221 (author)2011-08-10

Damn metacafe won't let me watch the video. Could you upload the video file to instructables or something.

author
mfarnawany (author)2008-09-14

WOuld it be possible to post 4 closer up pictures? I was interested in trying to build this. 1. Top Down - Real Wheel of Bike over Drive train 2. Side Shot - From the Outside, Two Wheels doing the launching 3. Inside Shot - Inside Show w/out attached bike of the same 4. Any Shot - SOme kind of shot of the Water Jug ball feed apparatus. Don't know if I can build it, but wouldn't mind trying. Thanks

author
engineerable (author)mfarnawany2008-09-17

Thanks for the interest! I will be posting better pictures and closeup video on my website soon, and I will let you know.

author

what is your website?

author

http://danielbauen.com/pedalpoweredtennis/

author
Kalipa (author)2010-12-17

It's really awesome and clever, but, if you have a person that can manpower the machine, why not just have him throw the balls back at you??

author
ALogan97 (author)Kalipa2011-04-22

what if they don't have hands?

author
controlfreak04 (author)2010-09-22

hy there, honestly your work is awesome! there are some questions...

1)how do you attach the lever with the cycle?
2)what material that makes the tennis ball injected one at a time?

author
northcoastnomad (author)2009-07-13

*applauds*
Bravo my friend, this is truly a work of geniousness.
By the way, have you come up with an official name for this mechanism?

author
bassclarinet23 (author)2009-07-13

Awesome! Do you think it is possible to make one strong enough to launch softballs?

author
Illamadi (author)2009-06-19

Does anyone have any ideas on how to make a rugby ball launcher and what mechanism to use in order to propell it ?

author
Martian925 (author)2009-05-22

Although kind of Rube-Goldberg-ish and useless (why not just bring another racquet and hit the balls to your partner?!), very clever engineering and cool video.

author
thepaul93 (author)2009-04-09

very nice

author
killerkorn (author)2009-03-25

thats awesome. and yea instructables can be quite easy to make and dont take that long to make so you should try posting up how to make one of these AMAZING contraptions.

author
pfdanielson (author)2009-03-12

this...is....amazing.... i want to make one

author
kibbler (author)2008-12-13

That is boss!

author
Redgerr (author)kibbler2009-03-12

totaly :]

author
sory24712 (author)2008-12-13

how do u build that u should post a instructable i would love!!!! to build this

author
Samsquanch (author)2008-11-11

I'm floored that is friggin' brilliant idea. You have to post the instructions on how to build that.

author
djabby (author)2008-08-31

You are a genius, your buddy needs a lot of practice on his return of serve. ;-) Good stuff dude!

author
tron1o7 (author)2008-08-13

That is really cool im just sad because theres no instructions on how to make it.

author
nf_x20 (author)2008-08-06

aw too bad there are no directions on how to make this

author
Nkevin90 (author)2008-06-26

brilliant!

author
Katie27 (author)2008-06-23

That's very interesting how you came up with this!

author
finfan7 (author)2008-06-18

this isn't an instructable... but it is cool. I am torn.

author
Aar000n3y (author)finfan72008-06-18

No, it's not an instructable. It's a video. Videos on Instructables show off a project, it doesn't have to describe how to make it.

author
finfan7 (author)Aar000n3y2008-06-20

Things like this remind me of my desire for a www.completeables.com so that people could separate their demos from their instructions.

author
baken411 (author)2008-06-18

nicely thought out and on a trailer too it's kind of weird though, the original inventor of the tennis ball launcher lives two houses up from me. lol

author
engineerable (author)baken4112008-06-19

Awesome! I didn't think the tennis ball launcher was that recent an invention. You should show them this video, I would be honored!

author
Plasmana (author)2008-06-19

Wow! I really like that tennis ball launcher! What a green way of shooting the balls and you get exercise too! 5/5 raring :-)

author
Thornburg (author)2008-06-18

This is a great Instructable, great video.

author
Thornburg (author)Thornburg2008-06-18

Although I really just meant great video, because this really isn't an Instructable. Not trying to pick on you or anything.

author
shooby (author)2008-06-18

While this doesn't give a good idea at all of how to build it, the concept is amazing, and the whole thing looks really well engineered. Awesome.

author
engineerable (author)shooby2008-06-18

This was originally created for a pedal powered machine contest, so unfortunately I didn't take the time to document the build process. The mechanics are simple, but the construction was very involved. Thanks, I love engineering cool stuff.

author
andrew_29 (author)engineerable2008-06-18

nice bike cool instructable too

author
4airtime (author)2008-06-18

try hooking the velcro strap to the rear of the front tire, behind the steering axis. This should give you currect steering of the ball. May have to shorten the cable, it's hard to see the mechanism in the video... Great idea!!!

author
darkmuskrat (author)2008-06-18

You showed it-ill tell you, its "Cool"
***** 5/5

author
rimar2000 (author)2008-06-18

Very good work, congratulatios,

author
laminterious (author)2008-06-18

Very cool!

author
Brennn10 (author)2008-06-18

This is great! Absolutely impressive. Nice work.

author
Doveman (author)2008-06-18

Ingenoius!!!

author
Bran (author)2008-06-18

Awesome! Definitely should be an iBle on this!

author
hay_jumper (author)2008-06-18

Neat. Now if you can modify this to shoot hotdogs, I will stand up and applaud.

author
Weissensteinburg (author)2008-06-18

That's amazing! I love how easily you can change the direction of the balls.

author

The direction control works really well. You just have to remember that it is reversed from the bike steering.

About This Instructable

21,499views

76favorites

License:

Bio: Daniel Bauen breathes new life into objects that have met their untimely demise in the junk pile.
More by engineerable:Playing Card Construction Set Using Cardboard ConnectorsiPad Indestructible Leather CaseLaser Cut Leather iPad Handle
Add instructable to: