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Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Vogal the Dragon

by TheRat, published

Vogal the Dragon by TheRat Nov 30, 2011

Description

So I got into doing Renaissance acting this year and got to thinking, what would it be like if you had a real life dragon? Here is as far as I've gotten so far with that thought, the eventual plan is to make this dragon attonomous, but at the moment he is controlled with duel sliding joysticks that control the height and rotation of his head, how wide his wings are spread and the angle of the wings (I'll add in controls for the tail later). The joysticks will eventually be replaced with IR sensors and an accelerometer, but I'm still working on those baby steps.

The model does use a derivative of the dragon head: thingiverse.com/thing:1466

Any help with the programming would be greatly appreciated.

Recent Comments

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With any luck I should be able to post a youtube video of Vogal in action this week.  There ended up being a few problems with the circuit board, so I'll try to post the updated board around the same time.

My deadline was really to have him ready for the renaissance fair in Wichita this weekend, but since I've missed that the new deadline is September 30th.  I met some of the performers from the Lion King musical and they got a real kick out of seeing Vogal in his naked state so I thought it would be a huge treat if I had him running and completed before their last show in Wichita on the 30th.

Thats awful to hear about the tornado.

Loocking forward to ubdates and a video or something when you are ready. :)

I hope i will be able to get some time to do my own little dragon. It wold be useful if you added some kind of assembly instructions here.

Vogal was made on a Rapman 3.0 printer. The hole locations for the wings may be the only thing you need to worry about close tolerancing on.

The model files should be good to go, but the circuit board and code may still need some tweaking. I took a direct hit by a tornado back in April but I'm just about done putting the pieces back together. Vogal and my printer came out unschathed but I wish I could say the same for my neighbor's h
ouse. So with any luck I should be able to focus back on the electronics in the next couple weeks.

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Instructions

I'm a little hesitant over posting all of the build files but here is a file with Vogal completely assembled along with some support documents to run an Arduino Mini Pro 04.

The rest of the files are print plates that should allow you to print these parts on a Rapman 3.0 Single Head Extruder or any machine with a build bay of 8in x 8in or larger.

When fully printed, his wing span reaches out 28 inches and from the tip of his nose to the tip of his tail, he stands 22 inches tall.

Happy Printing!

31 March 2012 - I just got the new PCBs in from DorkBot. I'm impressed with the quality but I had to do a face palm when I realized I had the capacitors (caps) in line with the rest of the power circuit instead of running to ground for power regulation. The attached BRD and SCH files allow for someone to hook up 6 servos and switch between two sets of 4 analog sensors (and have had the caps corrected).

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Comments

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TheRat on Sep 23, 2012 said:

With any luck I should be able to post a youtube video of Vogal in action this week.  There ended up being a few problems with the circuit board, so I'll try to post the updated board around the same time.

My deadline was really to have him ready for the renaissance fair in Wichita this weekend, but since I've missed that the new deadline is September 30th.  I met some of the performers from the Lion King musical and they got a real kick out of seeing Vogal in his naked state so I thought it would be a huge treat if I had him running and completed before their last show in Wichita on the 30th.

Shiera on Aug 4, 2012 said:

Hi

I like this project and want to do one, but i don't think the printer I have access to at the moment are precise enough...

Did you get all the electronics working, and are you using the joystick or the sensors you tought about?

Are all the files up to date?

TheRat on Aug 7, 2012 said:

Vogal was made on a Rapman 3.0 printer. The hole locations for the wings may be the only thing you need to worry about close tolerancing on.

The model files should be good to go, but the circuit board and code may still need some tweaking. I took a direct hit by a tornado back in April but I'm just about done putting the pieces back together. Vogal and my printer came out unschathed but I wish I could say the same for my neighbor's h
ouse. So with any luck I should be able to focus back on the electronics in the next couple weeks.

Rick on Jan 29, 2012 said:

I wanted to build a project like this. I have no 3D printer, and couldn't program one anyway, so my plan was to use a wire frame and molded body. Instead of joysticks, I want to use flex sensors (http://www.sparkfun.com/produc... sewn into a glove so I could control movements by bending my fingers. I was stopped by my lack of knowledge in programming. I'm happy to see such a similar project that is successful. Well done!

TheRat on Jan 29, 2012 said:

Thanks, I still have a lot of work left to do on the electronics side of vogal, but I should have an eagle cad file up within the next day or two so that all you would have to worry about is the programming side of Vogal. The new version of the circuit board will allow Vogal to switch from fully autonomous to remote controlled simply by connecting the remote. There shouldn't be much to redoing the code for a flex sensor glove after after switching from a joystick to a flex sensor. All the Arduino sees is a voltage, so it should be pretty quick just to redo the ranges of the sensors.

paul on Jan 4, 2012 said:

Hi, I have started to print this, I have got the body, neck and left wing parts done but the right wing print layout is too big for my 8in x 8in printer and I can't delete any of the individual parts to make the others fit. Also while some of the left wing parts are duplicated in the right wing there are other left wing parts that I can't find. Any chance of making the individual files available please.

TheRat on Jan 5, 2012 said:

Thanks for catching that, I have added the individual STL files for the LH wing. There are 8 parts to the left hand wing and each file is labeled as Wing *. The RH is just the opposite.

yzorg on Jan 2, 2012 said:

i like!

i dare to suggest you making lasercut dragonscales from Ostrich leather http://w27.indonetwork.co.id/p...

for a insane lifelike look 8-)

TheRat on Jan 2, 2012 said:

That looks pretty bad ass. Did you make that yourself?

Unfortunately, I don't know anyone locally with a laser cutter (it's on my wish list). I picked up a goat skin from Tandy's (a local leather shop) about a month ago and have been playing around with how to do scales. I haven't been able to get anything to look that good yet.

TheRat on Dec 4, 2011 said:

I'll try to get the rest of the files up here in time for it to be printed before Christmas (So I'll try to get in in the week before at minimum since it took me about 80hrs to print all of the final parts). I've heard of the Pern series before, I've just had the problem of getting the time to read any of the trilogy.

The files are pretty much good right now, I just have a little problem at the moment with the belly mounted 'radioshack'ed circuit board getting hit by the servo arm that adjusts the angle of the wings, but I'm doing some work in Eagle CAD to see if I can work around that while trying to double hi
s 4hr (4xAA) lifespan with a 2 or 3 cell LiPo battery (yey hackaday.com for the circuit info).

Daid on Dec 5, 2011 said:

I tried to see if I could get the parts out of blender myself, but I only get 3 different objects, the whole center frame is 1 object.

Anyhow, I did get a good look at the design and it looks great. But I'm wondering how you printed the tail parts, did you add support?

Gadgetman on Dec 3, 2011 said:

Have you read any of Anne McCaffrey's Pern books?

Startwith Dragonsong and the rest of the Harper Hall trilogy. Then get hold of Dragons Dawn...

Dragons aren't always Fantasy... Some are Sci-fi... ;-)

And yes, I want the files, too when you've finished them.

TheRat on Jan 5, 2012 said:

The Alibre source files are now attached. It's a little bit of a mess, but the 'wing assembly' file should populate with all the parts (minus the head)

MarcusWolschon on Dec 3, 2011 said:

I'd definately flattr this

rob311 on Dec 2, 2011 said:

Video?

julianh72 on Dec 2, 2011 said:

Oops - I see you ARE using Arduino. :-[

I'll take a look at your code and see what I make of it.

julianh72 on Dec 2, 2011 said:

Actually - I will say something else - PLEASE upload the separate part files - I soooooo want to make one! In return, I'll even offer my humble suggestions on programming (as long as you were thinking Arduino as the "brains").

PLEASE ...

julianh72 on Dec 2, 2011 said:

Wow!

That's all I can say - WOW!

Anonymous on Dec 1, 2011 said:

This is soo cute! I've seen cord operated puppets like this for years but animatronic is amazing, I can stop dissasembling furreal freinds for my pet dragon now!
&
lt;3

Daid on Dec 1, 2011 said:

Holy shit. This is awesome. My first reaction was "unprintable", but you did it.

A zip with all the separate stl files would be a great help in printing this ;)

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