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Subject: 
Re: 5 DOF robot-arm
Newsgroups: 
lugnet.robotics
Date: 
Mon, 22 Jul 2002 03:27:12 GMT
Original-From: 
Jona <JJEFFORDS@nospamAMERITECH.NET>
Viewed: 
647 times
  
Claude,

Real nice project!

I am interested in more details concerning the grabber hand. The page says
it is pneumatics, but there don't seem to be many details. Any info on this
part of the arm would be great.

Thanks,

Jona
----- Original Message -----
From: "Claude Baumann" <cbaumann@ci.educ.lu>
To: <lego-robotics@crynwr.com>
Sent: Sunday, July 21, 2002 8:03 AM
Subject: 5 DOF robot-arm


Hi all,

have a look at our 5 DOF robot-arm:

(this is a private father-son realization)

http://www.convict.lu/Jeunes/RoboticsIntro.htm

Features:

- 50 cm arm
- nearly half-sphere work-space
- 2 RCXs
- 6 motors
- 5 rotation sensors
- 1 touch sensor
- pneumatic grabber-hand
- individual motor control programs (Robolab 2.5)

- autonomous motion is possible

- preferable: computer-controlled motion

* multi-RCX communication (RS232 / USB)
* optimizing positions of every articulation depending
  on the actual location and target position, angular
  velocities, duration of movement, additional rules
* coordinates transformation
* linear interpolation
* object-recognition through camera
* solved challenge: "find and localize LEGO-pieces, grab them and
  store them into a box"

If you are interested in details: e-mail cbaumann@ci.educ.lu

Claude Baumann



Message has 1 Reply:
  Re: 5 DOF robot-arm
 
The pneumatic part of the project has five sections: - air-pump --> we use Ralph Hempel's well known two-pistons pump - air-direction switch --> J.Brown has solved that problem geniously, so we use this (URL) air-pressure-sensor --> again we use J. (...) (22 years ago, 25-Jul-02, to lugnet.robotics)

Message is in Reply To:
  5 DOF robot-arm
 
Hi all, have a look at our 5 DOF robot-arm: (this is a private father-son realization) (URL) 50 cm arm - nearly half-sphere work-space - 2 RCXs - 6 motors - 5 rotation sensors - 1 touch sensor - pneumatic grabber-hand - individual motor control (...) (22 years ago, 21-Jul-02, to lugnet.robotics) ! 

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