Herr Mimik

Herr Mimik is a table robot which consists of a single 5DOF robot hand and an animated head. So far I've built the hand and parts of the head. The hand is also used as a studying object for the MAAHR project.

 

 

 

 

 

 

 

 

 

Construction of the hand

 

The eyes are vertical and horizontal moveable. A nose will be added, maybe with a CO2 gas detector to detect human breath.

The animated mouth will be something like that.

I did some first experiments with the speakjet chip. The schematic is as following:

The two jumpers are used to change the baud rate by changing the logical states of pin M0/M1 and sending the serial sync character (hex 55, dec 85) at desired baud rate.  Around 1400 words in decimal format can be found here. The complete decimal code of one word is composed of:

20, [volume], 21, [speed], 22, [pitch], 23, [bend], [word code].

The volume can have a value of 0-127, the speed a value of 0-127, the pitch a value of 0-255 and the bend a value of 0-15.

Listens and speaks, moves its hand and animated head

  • Actuators / output devices: 5 TowerPro SG 5010 and 2 SG 90 till now
  • Control method: autonomous
  • CPU: Not decided
  • Power source: 7.2V 4000mAh RC battery
  • Programming language: not decided
  • Sensors / input devices: Sharp IR, Speech Recognition
  • Target environment: indoor

This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/herr-mimik

loved the body of the hand ,

loved the body of the hand , cant wait to see the completed version!


Seen this somewhere on the web a few days ago. I love the mechanics!

Awesome work Markus

Will you need springs on the knuckles, or is there enough tinsel strength in the ties to push the finger back when needed?

Interesting and sharp

Interesting and sharp looking design! - look forward to the video.  You inspired me to check out the price on the SG5010 servos and at $5 including shipping from Hobbypartz I decided to pick up eight of them - hope they are good performers :slight_smile:

They are performing very

They are performing very well and they have two bearings btw.

Hi GroG,I needed small

Hi GroG,

I needed small springs on the knuckles and have updated the design. Only the little finger is lightweight enough and doesn’t need any additional spring.

That hand looks awesome!

That hand looks awesome! Great work. 

Beautiful!

Beautiful!

(No subject)

LOL, that’s funny! Thanks,

LOL, that’s funny! Thanks, JAX!

well done but I think the

well done but I think the springs need to be stronger and less elastic!

I had the same thought. If

I had the same thought. If you could find springs that were a little stronger, but still allow the servos to overcome their pull, the robot’s fingers would extend more completely.

The hand is looking truely excellent!

Nice Markus

+10 pts for the bird.  You could mount this on your car as a new “how am I driving” indicator…

Yes, I designed the nose in

Yes, I designed the nose in honor to your chickens :smiley:

Hi IG,The springs need to be

Hi IG,

The springs need to be a little bit stronger and I need to do some adjustments. Just used ball pen springs, because I had nothing else around.