Here is the project updates of DoraBot Project.
Sorry for being quiet for a really long time. But don't worry, we are live again!
Hao have been back to China and start organizing a group of robot hobbyists to build a second prototype of DORA in awesome Chaihuo Makerspace in Shenzhen, China since the end of April. We meet up each Saturday night at Chaihuo Makerspace to share knowledge, skill and passion about building robots.
After 4 weeks of discussion and preparing, last night we've started working on 4 separate sub-projects that help people who involved get a better understanding of robots, as well as a hands-on experience on how to build, disassemble, fix, and hack various types of robots.
Take a look at the meetup last night:
Hao gave his speech "The Future Is Opensource Robotics" last night at Bay Area Software Engineer (BASE) meetup in front of almost 300 attendances. The topic of this meetup is"The Future is Robotics". Jake, Lilia and Steve who have worked on DoraBot were present.
Other than DoraBot, speakers from Willow Garage, Robot Launchpad, Robot App Store, Microsoft, and MenuGurus were presenting.
Special applauds to Michael Latulippe and Bruno Terkaly who made this wonderful event happen!
Hao got the arm working (5 out of 6 DOF, thanks to Jake's help in stepper driver), so here's the video on how exiting DoraBot becomes when he gets :
The EEG control was pretty good, steve from Puzzlebox Brainstorm
has been working on how to use brain to control various stuff for years, and has successfully controlled stuff like RC helicopter, lego next robot, electric wheelchair and stuff.
Hao burned Stepper motor Driver v1.2
today, by turning the current adjust resistor too low. A high current goes through L298N and releases the magic smell. Stupid mistake!
Post this as a warning to future operations.
McHawking is in toorcamp now! After travelling with People's Republic of Nosebridge, on OccupyOaklandOccuBus, he finnally made his way to toorcamp!
McHawking is actually running facefollowing script during the video.
Hao visited Boston from July 20th to 25th. and have met Yaroslav and Leif, two of the people who makes takkTile, the original idea source of DoraTouch, in Harvard University.
Check out the passive robotic hand they made:
There is a project page on takktile project about DoraTouch robot touch/pressure sensor, that links to the articles here.
Hao is visiting Boston and working on controlling a 5 DOF robotic arm together with DGonz (detailed development on his blog
) in MITERS, and when we try to make a double sided PCB boards with etching, we come up with a new method to do registration perfectly.
As you can see, the front and back side of the board aligned up very well.
The new method is simple. We didn't took picture of the process, so here's the simple text instruction:
1 Put both front and back side on same image, aligned up.
2 Move front and back side closer, with an isolation a little bit larger than the thickness of the board. Draw a line with width as same as the thickness of the board on the center of isolation. Print the pattern on a piece of gloss paper.
3 fold the two sides of gloss paper together, make sure grey line perfectly aligned up with both ends of board.
4 put the board into laminator.
If you can't understand the text (which is very possible due to Hao's English level), I might publish a tutorial after I do this workshop in toorcamp.