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Marten de Groot a publié une note il y a 9 ans et 6 mois

I’ve connect all fishing lines to the fingers and the servo’s.
All runs more freely and looks OK for me, here the test video with a complete Arm/Hand/Fingers:

Perry replied il y a 9 ans et 6 mois

That is awesome. No tensioning spring is the best feature! I guess you could add a tension spring like you had in your single finger tutorial.
I think this is pretty innovative which begs the question what does the rest of your bot look like?
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Hi Perry,
  Yes for sure I will include the springs which I’m using with my Finger_Starter kit.
  This makes programming a closed position more easy and they are to safe the servo mechanical way 🙂
  - Perry replied il y a 9 ans et 6 mois
    
    Sounds like it is time to follow you on Thingiverse 🙂
    - Marten de Groot replied il y a 9 ans et 6 mois
      
      🙂
      I think after this weekend I will upload all files, which are needed to upgrade the Wrist part and this includes the new ServoBed for the small servo’s and the Wrist servo.
      I can’t see that these smaller servo’s can hold it for a longer period 🙂
      But so far it looks good and including the springs I think it’s safe enough to use them!
      - rodolfo rojas replied il y a 9 ans et 6 mois
        
        Really fantastic, you did it 🙂
      - Marten de Groot replied il y a 9 ans et 6 mois
        
        Thanks Rodolfo !
        And all are still running with MRL 🙂
Gael Langevin replied il y a 9 ans et 6 mois

Very nice Marten!
It’s very interesting to see how you managed the wrist servo, I guess we could add a second servo for wrist abduction. That would be a great extra feature. (Hand Mini breakout Nervo Boards and Nervo boards would need to be transformed and all scripts and gestures as well though…)
Will you test it running continuously full 10…En afficher davantage
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Hi Gaël,
  
  I’m happy with this update, it helps a lot to run all the fishing lines more freely !
  If the small servo’s are still a life after a stress test…
  There is more space left for other functions.
  For the stress test I need to make a nice script or better just use a simple Ardiuno random sketch.
  So I don’t need a laptop to be on all the…En afficher davantage
  - Marten de Groot replied il y a 9 ans et 6 mois
    
    BTW, for the Thump I will make a other pulley.
    The one which I’m using now are a bit to big 🙂
    All other fingers are fine enough.
    - anthony replied il y a 9 ans et 5 mois
      
      Great idea Marten ! thank for sharing
      - Marten de Groot replied il y a 9 ans et 5 mois
        
        Thanks Anthony !
        
        I hope to upload all the STL’s tomorrow.
        Tomorrow I will receive my ordered DogBone shaft which is 108mm instead of 89mm 🙂
      - Marten de Groot replied il y a 9 ans et 5 mois
        
        So, the files are on Thingiverse: http://www.thingiverse.com/thing:1824042

SirAraujo a publié une note il y a 9 ans et 6 mois

Dedicated to Gael….

Gael Langevin replied il y a 9 ans et 6 mois

Oh gee!!
That voice, who’s voice is that? I can’t recognize the actor and in which comedy it is?
- Frederic replied il y a 9 ans et 4 mois
  
  Hello,
  I recognized the discourse of Hynkel of the film « The dictator » realized and interpreted by Charlie Chaplin. I have to googelize to find the French voice of Roger Carel.
  Sorry for the translation in English, that I speak very badly.
  - Gael Langevin replied il y a 9 ans et 4 mois
    
    Thanks Frederic for the info!
    - SirAraujo replied il y a 9 ans et 4 mois
      
      sorry for not having answered before … come yesterday from holidays.

SirAraujo a publié une note il y a 9 ans et 6 mois

Album | SirAraujo | InMoov

http://inmoov.fr/members/info2/album/

Sign in to our website and become an InMoov member. It will allow you to post message, pictures, and share with others InMoov builders. It’s just one click away!

Marten de Groot a publié une note il y a 9 ans et 6 mois

Finally the new ServoBed is done and fits very well.
For now I’m using a 98mm DogBone drive shaft from a tamiya RC truck.
Later, I will order this one:
https://www.rcplanet.com/Associated_Dogbone_108mm_SC8_2e_RTR_p/asc89576.htm

rodolfo rojas replied il y a 9 ans et 6 mois

Very nice work. I’m waiting to see the fingers and wrist working together. Fantastic
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Thanks Rodolfo,
  Here a video from this complete setup:
  
  Tomorrow I will start to connect all the finger fishing-lines to the servo-pulley’s 🙂
  
  It looks good so far 😉
  - Perry replied il y a 9 ans et 6 mois
    
    Once again nice work. It would be great to have a printable shaft for the wrist as opposed to a dog bone. Just another part I would have to wait for when I want to try something late at night. I thought you had a different servo offset in your previous vid and didn’t need the universal joint functionality
    - Marten de Groot replied il y a 9 ans et 6 mois
      
      Thanks Perry,
      
      A printable shaft would be cool, I only think it’s not strong enough !
      And DogBone shafts are very basic parts which are used in RC cars.
      Most local dealers will selling them.
      
      About the servo, in the first test video I was using a « Low Profile » servo.
      For some reason, these servo’s will not run with a Arduino !
      For this reason I…En afficher davantage
    - Marten de Groot replied il y a 9 ans et 6 mois
      
      Check my last post, to see the full functional Arm/Hand/Fingers:
      
      I’ve connect all fishing lines to the fingers and the servo’s.All runs more freely and looks OK for me, here the test video with a complete Arm/Hand/Fingers:https://youtu.be/8xlMrEUZBTw [Read more]– Marten de Groot (@mdg_nl) October 7, 2016

Ivan FdC a publié une note il y a 9 ans et 6 mois

Marten de Groot replied il y a 9 ans et 6 mois

« Looks » nice and Cool Ivan !
Sort of camera shutter 🙂
- amby replied il y a 9 ans et 5 mois
  
  very nice work the eyes move nice
- Ivan FdC replied il y a 9 ans et 5 mois
  
  Not have cams. Only lens jajajajajaa
amby replied il y a 9 ans et 5 mois

very nice work the eyes move nice
how you do for pilotes servos like this?
- Ivan FdC replied il y a 9 ans et 5 mois
  
  Hi!! I have the electronic to use myrobotlab but for this demo and other test i use first a plane tx and rx with 6v battery
Arturo Aguilar replied il y a 9 ans et 5 mois

Ivan, de que pais sos?
- Ivan FdC replied il y a 9 ans et 5 mois
  
  España. Argentino tu. Verdad? Jejeje un saludo
  - Arturo Aguilar replied il y a 9 ans et 5 mois
    
    Jajaja, si, Argentino. No se porque pensé que eras Argentino, felicitaciones por tus avances, que andes bien!
    Saludos
    - Ivan FdC replied il y a 9 ans et 5 mois
      
      😉

Marten de Groot a publié une note il y a 9 ans et 6 mois

The Servobed is updated, so tonight I can mount the Wrist servo and measure the distance between the small Wrist-Gear and the servo.
To finish this Wrist update, I only need to print the servo link.
Then it’s time to mount the Hand and all the fingers 🙂 (I can’t wait…)

Marten de Groot a publié une note il y a 9 ans et 6 mois

rodolfo rojas replied il y a 9 ans et 6 mois

Nice, now it works
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Yes 🙂
  But, I still need to update some things.
  Like the sevobed, so I can mount the Wrist servo on it.
  And still some fine-tuning between the servo and the small gear.
  
  I hope to finish this tomorrow.

Marten de Groot a publié une note il y a 9 ans et 6 mois

I’ve decided to make new Wrist Gears to, so all the Finger-fishing lines are more in line with the servo’s !
The Wrist servo will placed on the Finger servobed and with a axle it will be connected to the small Gear.
When I’ve printed the Gears, I can start drawing the Servo part…
Later I will share more pictures and if it works, I will share all…En afficher davantage

rodolfo rojas replied il y a 9 ans et 6 mois

I wish that works, it’s a great Idea
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Haha, my fingers are crossed 🙂
  
  The Wrist servo is blocking the complete way for all fishing-lines.
  With the servo placed on the servobed, it makes it full open.
  So this saves a lot of friction 🙂
  
  (printer is almost done with the last peace 🙂 )
Perry replied il y a 9 ans et 6 mois

Hello Marten. I came to that exact same conclusion last night while assembling my tendons. They have been very finicky and I am not confident the spring system will hold up. The wrist rotation really plays with the tensions and geometries. I was thinking of a system where the lines ran through the centerline of the wrist. The servo can be moved…En afficher davantage
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Hello Perry, this is what happen with my new setup.
  The servo is placed on the finger servobed and with a axle connected to the Wrist gears.
  I’ve a test setup ready now, so I will upload a video in a short time !
  - Marten de Groot replied il y a 9 ans et 6 mois
    
    Here the short video:

Stephen Begent a publié une note il y a 9 ans et 6 mois

Hi everyone, have just started to build InMoov currently printing the skull on my home built Prusa i3.

Dimitris a publié une note il y a 9 ans et 6 mois

Leo on stage and a selfie of him!!! at a TV show.
Troopy as Hamilton and Dimitris with Aggelos

Gael Langevin replied il y a 9 ans et 6 mois

Fantastic Dimitris!
I like the picture of InMoov in the speed car. So now you have two InMoov build up, that is great work.

Dimitris a publié une note il y a 9 ans et 6 mois

Me and Dimitris Xatzis with our friends Troopy and Leo at Athens Maker Faire

Gael Langevin replied il y a 9 ans et 6 mois

Two InMoov in Athenes for the Makerfaire!!
Leo on wheels also looks very clean.
- Dimitris replied il y a 9 ans et 6 mois
  
  Thank you Gael! It was a great weekend and we enjoy it!
  Now i make a try with my new raspberry and Mrl but i want to find a way to remotely control the raspberry from a android tablet.
  Do you know anything about it?
Gael Langevin replied il y a 9 ans et 6 mois

Hello Dimitris,
I would go for a VPN control. It will work a bit like TeamViewer.
You might want to look here:

Homepage

Building A Raspberry Pi VPN Part One: How And Why To Build A Server
- Dimitris replied il y a 9 ans et 6 mois
  
  Thanks Gael!! You gave me a work to do this afternoon!!
- Dimitris replied il y a 9 ans et 6 mois
  
  Finally you gave me work for days! I bought the new raspberry pi 3 with vnc already installed , but there is a bug. When i enable the vnc from config to have vnc at the startup ( i want to work from my tablet only) it does not run. Two days im trying to find a solution with no luck. today i did a contact with vnc support and they told me that is a…En afficher davantage

Marten de Groot a publié une note il y a 9 ans et 6 mois

I’ve updated the info (included a « How To » for my Finger_Starter kit V2:
http://www.thingiverse.com/thing:1794206
And here a video without the spring:

Richard R replied il y a 9 ans et 6 mois

Awesome Marten… going to try these servo pulleys with my new inMoov I am currently building… good work man…
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Thanks Richard,
  Mechanical way it looks good enough for me.
  These pulley’s will need the full 180 degrees from a servo !
  Make sure your servo’s supporting this 180 degree turn.
  
  My next step is to see, if the smaller servo’s are strong enough for the complete InMoov Hand !
  I hope to find some spare-time tomorrow, during my work… 🙂
  - Richard R replied il y a 9 ans et 6 mois
    
    Yep, I am using 180deg MG995 servos so this should work perfectly and increase grip strength as well…
    - Marten de Groot replied il y a 9 ans et 6 mois
      
      Have you some pictures from your InMoov ?
      Always cool to see other InMoovers growing up 🙂
      
      And a MG995 must do the job 😉
      - Richard R replied il y a 9 ans et 6 mois
        
        Unfortunately I only have a video of the first inMoov I built almost 2 years ago… https://www.youtube.com/watch?v=7YvCuU4EWU8
      - Marten de Groot replied il y a 9 ans et 6 mois
        
        Hahah, very cool!
        A InMoov bartender 🙂
        
        I’m sure you will like the spring, if you hold or take a glass of wine !
        I think the spring has enough pulling power and is more soft 🙂
Gael Langevin replied il y a 9 ans et 6 mois

Great Marten! I want to see when the pulley is set in the servo bed how the servos are acting. As I said in our email exchange, I have burned so many MG996 and MG995, that I do not trust those servos anymore. I never, yet burned a HK15298.
Initially when I created the pulley and the servo bed it was for to solve a restriction rotation of 90…En afficher davantage
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Tomorrow and the next two day’s I have some spare time during the day 🙂
  First I need to finish my Wrist update, this will help a lot to run more freely !
  Yesterday evening/night I’ve printed the first parts and one needs a small modification to fit better.
  When this fits well, I can draw the servo part…
  
  I will do my best, to show a moving…En afficher davantage

Dominique a publié une note il y a 9 ans et 6 mois

Gael Langevin replied il y a 9 ans et 6 mois

Awesome! Is he connected with software yet?

Marten de Groot a publié une note il y a 9 ans et 6 mois

Here two pictures from all MG996R servo’s and All CS238MG servo’s, to see the difference in the total weights.
The CS238MG servo’s saving a 161 gram of weight and they are placed more closer to the elbow !
Both are a positive part, to safe a lot of friction to all arm and shoulder servo’s

For the CS238MG it was necessary to redesign a simple…En afficher davantage

Marten de Groot a publié une note il y a 9 ans et 6 mois

So, all five Servo Pulley’s are done to 🙂
Tomorrow evening (after work) it’s time to assembling all things together.

Perry replied il y a 9 ans et 6 mois

Looks great. Exciting. what pulley designs are you using?
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Thanks Perry,
  You can download the pulley’s here:
  http://www.thingiverse.com/thing:1794206
  - Gael Langevin replied il y a 9 ans et 6 mois
    
    Thanks Marten for sharing! I have added your Thingiverse pulleys to the InMoov collection.
    - Marten de Groot replied il y a 9 ans et 6 mois
      
      Thanks Gaël, to put them to the InMoov collection.

Marten de Groot a publié une note il y a 9 ans et 6 mois

So, the CS238MG ServoAdapter production is done for the Right Hand 🙂
Next production are five Servo Pulley sets….

Perry a publié une note il y a 9 ans et 6 mois

Sorry for multiple posts here.

Bob Houston replied il y a 9 ans et 6 mois

Nice job! Are you going to share the design? I would sure use it as I don’t have an on board computer either. Thanks
- Perry replied il y a 9 ans et 6 mois
  
  Hi Bob.
  Here you go. Still a bit of a WIP but curious to see how it fits for others.
  
  http://www.thingiverse.com/thing:1798673
  - Bob Houston replied il y a 9 ans et 6 mois
    
    Thanks a lot.
  - Richard R replied il y a 9 ans et 6 mois
    
    Agreed, nice work….
    - Marten de Groot replied il y a 9 ans et 6 mois
      
      Indeed, very cool design!
      Thanks for sharing 🙂
Gael Langevin replied il y a 9 ans et 6 mois

Great work and very nice adaptation. Which software do you use for to do that?
It doesn’t look like Blender. It’s interesting to know because other builders might be interested to see how you re-worked your parts with only the STL at start.
- Perry replied il y a 9 ans et 6 mois
  
  Hello Gael,
  Working with STL files can be a real hassle as they are among the hardest to modify after the fact. As you can see in the pics below they import with thousands of facets so there are not really planar surfaces to work with.
  I use Solidworks to import your individual stl files. It is important to import as a solid body instead of a…En afficher davantage
Gael Langevin replied il y a 9 ans et 6 mois

Thanks for the explaination Perry.
When exporting from Blender to STL format I use a plugin within Blender to check if parts are clean without inverted facets. This plugin did not exist when I started InMoov project, therefore some of my first parts could not come out clean
🙂
One of the reasons I do not create parts with too many round edges,…En afficher davantage
- Kevon Kelly replied il y a 9 ans et 5 mois
  
  Hi,
  I’ve just started the project, so sorry if my question has been answered previously.
  
  I though that the upper back was for mounting the tablet. does this mean the the robot can operate without the tablet?
  - Perry replied il y a 9 ans et 5 mois
    
    Hi Kevon. You are correct that the position in the back is for the tablet. Some people use other tables or raspberry PI’s or other controllers to run the bot.

Perry a publié une note il y a 9 ans et 6 mois

Making a back cover to fill up the Lenovo hole since I don’t us a tablet. It follows the lines of Gaels back design and matches the contours.

SirAraujo a publié une note il y a 9 ans et 6 mois

http://www.bipedolandia.com

Marten de Groot a publié une note il y a 9 ans et 6 mois

Here some pictures to show the difference between the servo weights…
The MG996R was my first choice for the InMoov hand.
The CS238MG servo weights including a mounted servo-adapter 30gr. less as the MG996R !
So if I will use these CS238MG servo’s for my InMoov hand, it will saves a 150gr. of weight 🙂
I think when I’ve finished the new…En afficher davantage

Richard R replied il y a 9 ans et 6 mois

They may save weight but they may not be strong enough for the inMoov hand… The hand is not the same as the finger starter. There is a lot more friction on the push/pull finger mechanisms. The servos need to work much harder than the simple finger kit… However, let us know if they work because less weigh is always welcome…
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Hi Richard,
  I’m almost sure these smaller servo’s are strong enough for the Hand.
  (don’t forget the special pulley which I’m using!)
  The spring which I’m using now, is perfect to start.
  If needed, I can use a stronger spring to get more torque.
  I hope to show the results this weekend 🙂
  My goal is minimum to hold a softball or a bottle of…En afficher davantage
  - Richard R replied il y a 9 ans et 6 mois
    
    Sounds good… looking forward to your results…

Marten de Groot a publié une note il y a 9 ans et 6 mois

If you like to print my new Finger_Starter kit including the new pulley’s, here you can find all the files 🙂
http://www.thingiverse.com/thing:1794206

Have fun… 😉

rodolfo rojas replied il y a 9 ans et 6 mois

I will use your idea in my Inmoov Rigth Hamd
- Marten de Groot replied il y a 9 ans et 6 mois
  
  Thanks Rodolfo,
  
  Yesterday I’ve changed the servo-adapter to V2 !
  http://www.thingiverse.com/download:2803246
  These are easier to mount to the CS238MG servo.
  
  I will install the new servo’s tomorrow in my Right hand…
  So hopefully this weekend I can make a good video with all the results.
  And I will make a Step by Step « How To ».
  
  If you have…En afficher davantage
  - rodolfo rojas replied il y a 9 ans et 6 mois
    
    Many Thanks Marten, I wait impatiently your Video, and your « How to ». It’s a very good job

Marten de Groot a publié une note il y a 9 ans et 6 mois

Today I finally received my smaller servo’s 🙂
https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=51891
After printing a servo-adapter, to mount this smaller servo in a standard servo place…
I made some tests with the new pulley and it looks all great !
The current use stay’s very low, even when I’m holding down the…En afficher davantage