Instructables
Picture of Mini-Ornithopter Prototypes
ornithopterv2 - pic10.jpg
ornithopterv2 - pic2.jpg
Somewhere around 1996 I got caught up in that Magic: the Gathering card game that was going around like the flu. One of the cards, the Ornithopter, had a picture of a set of wings made from sticks and cloth that I found facisnating. I haven't played the game in years, but that card got stuck in the back of my memory, probably because its name is fun to say.

I've had a resurgence of interest in these devices thanks to the growing popularity of micro air vehicles (MAV), like palm sized helicopters and quadcopters, and suddenly had the need to try build my own ornithopter. This Instructable documents my recent  attempts at crafting my own micro-orithopter from inexpensive components. This is really more of an Instructadon't, as none of these prototypes actually fly. I'm close to having a working version in the air, when that happens l will also create new Instructado using a more conventional format.




Project Goals
  1. Design and fabricate a palm sized flying machine using 3D printed parts
  2. Non-3D printed pieces, such as structural material and electrical components, must be cheap and easily to find.
  3. Printed parts should total no more than $10 when being made from ABS plastic or similar.
  4. Total cost should not exceed $40, including RC.
  5. Design and fabricate a Infra-red receiver and transceiver for remote control
  6. Small is the name of the game! I'm shooting for a wingspan of less than six inches.

Materials Used
  1. Spring Steel, aka Music Wire. hobbylinc.com
  2. Guitar Wire
  3. Miniature Motor, common pager style solarbotics.com
  4. 40mAh Lipo Battery sparkfun.com
  5. Tissue Paper
  6. Plastic Film, various thicknesses
  7. Sewing Pins
  8. Gorilla Glue

Design Software and Tools
Objet Printer
Up3D Printer
123D beta9, Autodesk Inventor Fusion
Dremel, scissors, wire cutters, micro drills
 
Remove these adsRemove these ads by Signing Up
dav13097 days ago

Do you have the CAD models of all the 3D printed parts line the wings, gears, support etc.; if you do could you please share them

ttia sữa2 months ago

http://tritactiasuahcm.blogspot.com/

Tejas135 months ago

awesomeeeeeeeeeeeee :)
i jsttt luvd it

masonmilby1 year ago
Hello im building an Ornithopter from an old rc heli and I wanted to know if you could give me the inventor models so I could print one myself
Manick Yoj1 year ago
Fascinating and very fun. I love watching and reading the videos and research you've put in here and I wish you the best of luck with your future flights!
spylock1 year ago
Too cool,youre a brainy mug no doubt.
zack2471 year ago
if im not mistaken this works in a very similar way to those "dragonfly" toys that used to be sold, but this is incredibly cool nonetheless!
Tomdf (author)  zack2471 year ago
Oh yeah, you are dead on, I think those toys might have even evolved from versions made by hobbyists. They essentially the exact same thing. I certainly could just go buy one, but it wouldn't be near as much fun for me.

Thanks for the comment, Zack.
zack247 Tomdf1 year ago
of course it wouldnt be as much fun, wheres the fun in simply buying something? :P
stihl881 year ago
http://www.rcgroups.com/forums/showthread.php?t=1073892
Tomdf (author)  stihl881 year ago
Thank you Stihl, that stuff is amazing and preddy much exactly what I'm trying to emulate. I can't believe those guys just up and make their own brushless motors, crazy!
germeten1 year ago
There are some excellent 'thopter videos on Youtube. One particular Japanese inventor builds life-size RC bats, birds, insects, flying reptiles which apart from the squeaking mechanicals are hard to tell from the real thing. He also has several videos of construction techniques and details. See: http://www.youtube.com/user/BZH07614?feature=watch
Tomdf (author)  germeten1 year ago
Whoa, that guy is super human. This link is going to be a big help. Thanks :D
Beatiful work!!!! :-)
Tomdf (author)  M.C. Langer1 year ago
Much appreciated :D
I love the "Inaugural Flight" video--the device is skillfully made and well thought out . . . also it's inspiring; makes me want to give it a try.
Tomdf (author)  MikeTheMaker1 year ago
Thanks mrigsby
GOOD
Nice stuff!
stihl881 year ago
http://www.rcgroups.com/forums/showthread.php?t=596219&page=55
msurguy1 year ago
Very fascinating info and test development here, Tom! Love the idea to 3D print the parts but afraid they will be too heavy, some of the things could definitely be replaced with Carbon Fiber alternatives for a lot more durability and feather-like weight. I have carbon fiber rods 0.2mm, 0.3mm and 0.5mm diameter that would be perfect for this king of development, I'm sure a hobby store near you carries some thin carbon fiber rods as well (maybe not as thin as mine because these are specialized for MAVs). There are also carbon fiber tubes out there that can house the rods by inserting the rods inside which gives you some freedom of how to make the skeleton of the ornithopter.

Do you want me to find some links for Japanese ornithopter makers? They have lots of tips on their websites and I am sure even the schematics and code for the RX and TX for the lightest models. Just let me know and I'll look!
Tomdf (author)  msurguy1 year ago
Thanks Surguy. I think you are right about the 3D printed parts, the smallest gears it can make are too big for a tiny ornithopter. I am having a lot of fun finding ways to cut weight down though, I definitely want to try some of those carbon fiber rods. I also need to get some sockets so I can make those mini-connectors that you wrote about.

I've got the TX and RX figured out, I think, using picaxe, but if you do run across some cool sites I would sure like to see them.
msurguy Tomdf1 year ago
http://blog.goo.ne.jp/flappingwing/
http://www.oyajin.jp/~toko/contri/2005/index.html
http://blogs.yahoo.co.jp/watasidesuyo49/MYBLOG/yblog.html?m=lc&p=3
trhk.exblog.jp
http://translate.googleusercontent.com/translate_c?depth=1&hl=ja&ie=UTF8&rurl=translate.google.com&sl=ja&tl=en&twu=1&u=http://trhk.exblog.jp/i16&usg=ALkJrhgThzIu18NxaF5fM6wvRuS3hIMPbw
http://blog.goo.ne.jp/kobara3211/2

TX info http://www.kyoto.zaq.ne.jp/tkd/transceivmemo.htm
RX info http://www.kyoto.zaq.ne.jp/tkd/airplaneready.htm

Tomdf (author)  msurguy1 year ago
Wow, thank you. I got a chance to weigh some of the parts I've been using and they are really heavy! My motor alone weighs 2.5g, that's twice as heavy as some of the ones I've linked.
I think I have to make this. Even if it doesn't fly. I know someone with this obsession with thopters and I think he needs one of these. Or three. (I am not an enabler... *shifty eyes*)
Tomdf (author)  Easily a-Mused1 year ago
Be sure to check out the videos and links on the last step for examples of ones that do work.
ynze1 year ago
Wonderful instructable! I find the mistakes and the instructadon'ts at least as useful as a flawless how-to I'ble. Thanks!
Tomdf (author)  ynze1 year ago
Thanks, I figured that at the least they are fun to look at :)
rimar20001 year ago
Amazing work!

I speak without knowledge about the matter, but it seems you have too much demultiplication of the motor.
Tomdf (author)  rimar20001 year ago
Thanks, chances are you are correct. I might give up on using 3D printed gears and get some real ones that supply a better ratio.