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Robotic Rover Project (Autonomous & Teleoperated) — Parallax Forums

Robotic Rover Project (Autonomous & Teleoperated)

Aaqil KhanAaqil Khan Posts: 60
edited 2007-12-08 23:19 in Robotics
Hi guys,

I had posted sometime back about my robotics project. I was making a 4WD rover capable of autonomous as well as teleoperated override mode. In the override mode, my robot can be controlled wirelessly via a control application I developed in VB.

I am in the process of documenting the robot's development and design aspects so that others can learn from my experience. Please visit my documentation and videos on:

www.aaqilkhan.blogspot.com
www.youtube.com/aaqilkhan

Suggestions/comments etc for the robot and documentation are welcome.

Enjoy!
Aaqil

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E=mc^2

Comments

  • WhitWhit Posts: 4,191
    edited 2007-09-19 01:12
    Aaqil,

    The blog is really nice. I have bookmarked it and will go back and study it in detail.

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    Whit+


    "We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths." - Walt Disney
  • Bill ChennaultBill Chennault Posts: 1,198
    edited 2007-09-19 16:28
    Aaqil--

    What a great little machine and web site!

    --Bill

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    You are what you write.
  • DgswanerDgswaner Posts: 795
    edited 2007-09-19 17:16
    nice work! Documenting is an understatement! did you use Sketchup to produce the 3d images and autocad for the rest?

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    A complex design is the sign of an inferior designer. - Jamie Hyneman, Myth Buster
  • Aaqil KhanAaqil Khan Posts: 60
    edited 2007-09-19 19:26
    Thanks for the good words.
    Like I mentioned in the documentation, I used solidworks for this project. It makes it very easy to create the engineering drawings from your 3D model.

    Aaqil

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    E=mc^2
  • grasshoppergrasshopper Posts: 438
    edited 2007-10-26 15:27
    Very nice blog...

    Question i have is - Did you make the chassis or have a company cut and bend the metal for you?
  • Aaqil KhanAaqil Khan Posts: 60
    edited 2007-10-26 15:57
    A·friend of mine (who has all machine tools in his· basement) made the aluminum chassis and brackets for me. Got it done at a very good price, too. I also inquired with professional metal workshops and they would have charged me an arm and a leg for a few metal brackets.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    E=mc^2
  • Steve JoblinSteve Joblin Posts: 784
    edited 2007-10-26 17:09
    I really admire your work! beautiful site and beautiful bot!!!!!
  • Technic-R-CTechnic-R-C Posts: 117
    edited 2007-11-14 22:46
    Great robot, animations, and website.

    keep up the good work!

    Technic-R-C
  • Brian_BBrian_B Posts: 842
    edited 2007-11-15 02:30
    AWSOME Looking robot !!!!!

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    Thank's Brian


    www.truckwiz.com

    ·"Imagination is more important than knowledge..." ·· Albert Einstein

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  • bietzbietz Posts: 22
    edited 2007-11-16 21:53
    that stuff is really neat! from the robot to all the software you implemented, to the awesome and very detailed documentation! Nice job

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    http://alandtech.blogspot.com
  • bietzbietz Posts: 22
    edited 2007-11-16 21:56
    the video of the "Earlier 3D model and simulation of the robot arm (Concept stage)." looks great!
    What did you use to do that? 3DS MAX?
    Is it a real simulation or just an animation (for the stuff running on the "virtual" computer)?

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    http://alandtech.blogspot.com
  • Aaqil KhanAaqil Khan Posts: 60
    edited 2007-11-17 15:41
    Thanks for the good words, friends.

    bietz - The animation was created from the 3D model that I created with SolidWorks and imported into, you got it, 3DS Max. My brother who is a 3D animator made the animation for me. I wanted to see how the arm would look like before I built the actual thing. Wonder, what we'd do without 3D CAD ??

    That arm is now mounted on the rover platform. I will post a video soon. Waiting for a sunny day (yea its winter in Toronto).

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    E=mc^2

    Post Edited (Aaqil Khan) : 11/17/2007 3:46:36 PM GMT
  • J. A. StreichJ. A. Streich Posts: 158
    edited 2007-12-08 18:22
    A couple of questions:
    What is your total weight?
    What is your top speed with those motors?
  • Aaqil KhanAaqil Khan Posts: 60
    edited 2007-12-08 18:36
    the most heaviest part of the robot is the 6V SLA battery. Next are the 4 tamiya gearmotors. together with the robotic arm on top (including all servos) it weighs around 6-7 kgs (sorry for the metric units - i am canadian).

    regarding total speed, i haven't measured the exact speed, but the rover is really fast because of the large diameter of the wheels. The motors have very high torque and can move the rover really quick. I am guesstimating the speed to be likely 3-4m/s that means roughly 7-10km/hr (~4-6mph).

    In autonomous mode, I limited the speed to a max of 50% of top speed, so that it doesn't get out of control. The top speed is achievable only in teleoperated mode, when its controlled by my software on a PC.

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    E=mc^2
  • J. A. StreichJ. A. Streich Posts: 158
    edited 2007-12-08 23:19
    Many thanks. I'm looking to try something similar (no arm and a top mounted interface for "programming" instructions into it. I am in the planning stages, and looking at what components are the best bang for the buck. I have a BoE-bot, and wanted to make sure that there is a marked improvement in speed in this smarter and larger bot I am looking to build.
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