H-Bridge - the Options and Links

      Here  are several options to using a H-Bridge to drive most brushed motors, linear actuators, and even large wiper motors. The H-Bridge sorts out the Forward  / Reverse polarity, making it easier to integrate motor control into electronic projects or controllers.

                         

  Modular Circuits

Click the image to see detailed explanation of how a H-Bridge works.

1. H-bridges – the Basics
2. Sign-Magnitude Drive
3. Lock Anti-Phase Drive
4. Asynchronous Sign-magnitude Drive
5. MOSFETs and Catch Diodes
6. H-Bridge Drivers
7. H-Bridge Control
8. Safety Feature

For those of us the like a visual explanation, here is a great tutorial.

Erica

 Erica is an advanced android designed as a research platform to study human-robot interaction. It understands natural language, has a synthesized human-like voice, and can display a variety of facial expressions.

Click on the image to visit Erica.

XYZbot's Fritz Head Transplant... Don't Reinvent the Wheel

Here are some words of wisdom that we intent to pick-up on.

We wanted to build our own head and face movement, but time seems to be against us.

So at this point with so many great and innovative projects out there we made out choice.

Something we did not need to reinvent, but rather align to our project.


Fritz really took our fancy.
Examine the possibilities we now have in the clips below!

                                                       

Introduction to Fritz by Leslie.



A behind the scenes look into Fritz's components from a CAD perspective.





Split screen video where you can see the avatar within the application control of Fritz moving along with the actual robot moving.




A behind the scenes look into show Fritz is manufactured. Kerwin makes it look simple!

Wonderful project ready to transplant onto the head of Francis.

Click on the logo to visit the official FRITZ site.

Yes, So Why Reinvent The Wheel?

Robot Programmed To Play Dominoes - Stanford University

This Stanford University robot arm is used to play with a set of dominoes. With this coordination and simple programming it will be possible to teach the arm a number of entertaining skills.

Lynxmotion Arm can also be programed with this ability.
Watch the clip below and imagine the possibilities !

Freaky Robot Show Us the Future is Now (Videos)

Robots have been a fascination of kids and scientists alike for generations. But while we've grown used to the idea of robots in our lives, from the mechanical arms that manufacture our automobiles to the more whimsical robot housekeepers and servers coming out of Japan design labs, there are far more high-tech robots being created that put us on the edge of our seats. Here are five of those strange and fascinating new inventions that call into question everything from the need for our flesh-and-bone bodies to human consciousness.

The N55 Walking House seems like a perfect idea for those living on coastlines where sea level rise is taking over real estate. When high tide is lapping at your foundation, you can just up and walk the house somewhere else! But there are few things that make you feel like you're in an Orson Wells world as seeing a house crawl away on six legs.

Mechatronics - by Definition.

Mechatronics is the combination of mechanical engineering, electronic engineering, computer engineering, software engineering, control engineering, and systems design engineering in order to design, and manufacture useful products^[1][2]. Mechatronics is a multidisciplinary field of engineering, that is to say it rejects splitting engineering into separate disciplines. Originally, mechatronics just included the combination between mechanics and electronics, hence the word is only a portmanteau of mechanics and electronics. However, as technical systems have become more and more complex the word has been "updated" during recent years to include more technical areas

Bicycle Boy

LYNX ARM

The right side limb is to be equipped with a programmable arm that can manipulate small objects. After researching a large number of kits available it became apparent that the LYNXMOTION kit would be the most suitable choice .The LYNXMOTION ARM features; base rotation, shoulder, elbow, wrist motion, wrist rotate, and a fully functional gripper.

The kit is well constructed but more importantly the programing and software options were greater that many other products out there.


THE LYNX ARM IN PARK OR CROUCHED POSITION.


Click here to view specs on the Official Web Site.

TRACK DRIVE

The Caterpillar track drive configuration offered the best capabilities and  flexibility for this project.

A similar track tension system is to be used , only it will have pneumatic cylinders that will keep a consistent pressure on the track. This system will require little maintenance and hopefully a smoother ride.

Two track drive systems had to be engineered. An inexpensive and robust track was spotted at a industrial wrecker. The FLIGHT TOP conveyor tracking would serve as a great development tool. This surplus was made of nylon plactic , an aluninum version with the same profile will be more suited , this we will implement when "all systems are go"



Seeing that this robot needs to be completed in my lifetime , we decided not to get sidetracked by the hundreds of possibilities and options. We chose to copy the Caterpillar Hi Track System , a tested and proven design. This type of track drive system produces higher torque and allows more room for some extra bits we wanted to include. As can be seen in the pic below a number of options are available.