Difference between revisions of "Reddy Update"

From IntRoLab
(Motor Controllers)
(Cabling Improvements)
Line 33: Line 33:
 
* Cables are now better organized
 
* Cables are now better organized
 
* Added connectors inside the arm to disconnect motors easily for repairs
 
* Added connectors inside the arm to disconnect motors easily for repairs
 +
* Signals are color coded as follow
 +
** Red
 +
** Green
 +
** (TODO ADD DOCUMENTATION)
  
 
= Head Improvements =
 
= Head Improvements =

Revision as of 13:19, 28 July 2009

Schedule

Week 31, July 27 - August 1
  • Ordered new coupling for shoulder
  • Fab. + installation of head mechanism for gravity assist (previous one had interference problems with other head parts)
  • Assembly and installation of 1 motor PCB for neck
  • Assembly and installation of the speaker PCB + support
  • Final tuning of motor controllers
  • Documentation (protocol)
Week 32, August 3 - August 9
  • Final tests & tuning

Arm Improvements

Motor PCB

Motor Controllers

ReddyMotorControllers.jpg

  • A new motor drive that can connect up to 4 motors have been designed.
  • A new adjustable bracket for fixing the drive to the side of the robot have been designed.

Cabling Improvements

ReddyArmCables.jpg

  • Cables are now better organized
  • Added connectors inside the arm to disconnect motors easily for repairs
  • Signals are color coded as follow
    • Red
    • Green
    • (TODO ADD DOCUMENTATION)

Head Improvements

File:ReddyGravityCompensation.jpg


Motor controllers for head movement (YES-NO)

  • Same motor controllers were used for the neck to add overheating protection and better feedback / control


Tuning the motor controller

RS-232 protocol enhancements

CAN command added

Future Improvements

  • Single 12V power supply could be useful for direct connection to Pioneer robots. A 12V-->8.5V DC-DC (100W) converter is required for this operation. This item can be ordered at Vicor. 8.5V batteries would then be useless.

Additional Notes

Documents