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

Bicep for Robot InMoov

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Published on September 17, 2012
This thing was Featured on September 17, 2012

Description

Here is "InMoov", the robot you can print and animate. You have a 3D printer, some building skills, This project is for you!!

Don't be scared or intimidated, I started this a few months ago and didn't even know what was Arduino or a servo motor!

Start with printing the hand like I did, and go on the rest if you feel.
thingiverse.com/thing:17773

Well it's been a fun time creating this bicep, I have gone through quite many prints for to finally release it.

Blog with more info and instructions:
inmoov.blogspot.com
inmoov.blogspot.fr/p/assembly-help.html

This video isn't actual, I have modified many parts since then:
youtube.com/watch?v=XAcGlytxPVI
youtube.com/watch?v=BAs2F4sFVdA

The latest video:
youtube.com/watch?v=kqG7vASU1YE

Instructions

THIS IS A WORK IN PROGRESS FILES MIGHT STILL CHANGE.

All parts are designed to fit on a 12x12cm print bed, just like the hand.
I have printed all parts in ABS.
With 0.5mm thickness for most parts.
Also most parts have an infill of 30%.
Except "pistonanticlock", "rotwormV4" was printed at 0.4mm with a 100% infill.
"rotwormV4" is the only part printed with support.


Most parts are the same for the left and right arm.
The parts named "leftXXXX" are for the left arm, easy to figure out...

Print one of each part.
Print two of "lowarmsideV1", "higharmsideV1"
You also need 2 Hitec HS-805BB servo.
A little bit of cables.

Update 21/09/12 A step by step Instructions uploaded on the blog
inmoov.blogspot.fr/p/assembly-help.html

Update 24/09/12 Something went wrong during uploading "pistonbaseV1", you should use "pistonbaseantiV1". Sorry for this mistake. Thanks to 1Robotmaker for the comment.

Update 07/10/12 Uploaded the covers for the bicep + a simple movement sketch for your Arduino seen in the Part8 video.

Update 31/10/12 RotwormV4 is now used for the left and right bicep. If you are building a right arm, you need to inverse the green and red wires on the potentiometer. See blog for more info.

Update 03/01/13 I have uploaded the shoulder parts.
see: thingiverse.com/thing:40040

Update 02/03/13 Modified "RotGearV2" to "RotGearV3" teeth are now a bit smaller, avoiding the risk of touching the innercasing. Also modified "RotWormV4" to "RotWormV5", I rounded up the entrance of the worm, for better printing finish. Thanks to Brian for the suggestions.

Still working on instructions text...
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Awesome !! I really like your project :)

Have you seen the "Razer Hydra " it would be perfect to control robot arms and hands.... & its cheap.. only $60.00 2x hand controllers.

I created a video of myself using the Razer Hydra.. you can see the video here.

http://www.youtube.com/watch?v...

it is comes with an SDK. (open source)

Fantastic Gael. A pure pleasure watching your progress.

Thanks for your support!

Hi Hairygael,Amazing job.
What software did you use ,Thanks

Hi, I'm using Blender, Netfabb, Kisslicer

Is there a cover for the back of the bicep? I have printed the covers 1,2,3 and have 5 assembled pieces which leaves an opening in the back of the bicep. Yes?

Hi bstott, you are correct the back doesn't have a cover yet. My concern was the wiring connectors, nobody is going to have the same, so I decided to leave it open for easy access, a simple resolution... The back of InMoov isn't really great at the moment , LOL

Hi,

im tryine to print "armtopcover3" but having troble, i opened it up in netfabb and it has some parts in red. can you help plz.

Hi, did you work yourself through? Netfabb can fix a STL if it has some problems, what trouble did you have?

I'm just looking at purchasing a 3D printer right now. What "SIZE", Table requirement for parts like this? I'm looking at a 3D Printer from Solidoodle, which allow 6-8" parts made....Thanx.

The Solidoodle has a very low attractive price, but I'm aware of this review,
written by someone who just wanted to print InMoov, but never got to it
because the printer is just very bad. They might have changed.
All parts are designed to fit a 12x12cm print bed.

Could you tell me what servos you are using in the bicep, and where you got them? Do they have to be digital for Arduino?

Hi, I used two HS805BB, same for the shoulders. You could maybe get servos that are faster and stronger in torque, but it will be more expensive. I got them on ebay, from a german seller.

I just created a forum for questions/answers:
https://groups.google.com/foru...

Any chance you can add a 3mm hole in RotwormV4 down the center I have snaped 3 of them already ( they are PLA) I think they will be stronger. Before the last one broke I had the arm moving using ROS and responding to action states

Hi Peter, I saw on your pictures that you used the "Rotparts/Bicepparts" for to create a shoulder for your Robbie robot. I first did the same, but came to realize Rotworm4 wasn't strong enough for that. That is the main reason I hadn't released the shoulder yet because I have redesigned it, making the worm gear and case much stronger. After hours of test I can say it is strong enough now. But since you have printed all those parts already I will make a Rotworm as you suggest and send it by mail to you. I would be interested to hear more about your ROS.

What do you use to control all of the servo's?

I have an Arduino Mega board, then I can write sketchs directly with the Arduino.exe, or use Myrobotlab. It seems that EZ builder is a good and easier program but you need to buy their board.

Could you post a zip file of all the *.stls?

 Hi bstott,
Done.
I hope this will be going better than the Makerfaire!

Could be me being stupid, but it seems like the threads of pistonanticlockv1 and pistonbasev1 are reversed they dont mesh together at all. like they go opposite directions. please help.

 Ooops, something got mixed up during uploading, I upload the correct "pistonbaseantiV1" right away. Thanks.

That's fair amazing work. Very cool project!

Very impressive!

Thank you, but don't be intimidated it isn't hard to build once you have all the parts printed.