Making ISAAC

Discussion in 'The Projects Forum' started by MrChips, Nov 11, 2014.

  1. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    For many years now I have wanted to build a robot.

    I was recently inspired by the videos in this thread:
    http://forum.allaboutcircuits.com/threads/pid-project.103265/#post-780103

    and this one:



    So now I'm on my way with initial design of the platform and drive components.

    The drive mechanism will be similar to the Segway design:
    http://forum.allaboutcircuits.com/threads/yes-its-another-segway-clone.101012/#post-759698




    Next, I have to come up with a tilt-angle sensor which reminds me of this thread:
    http://forum.allaboutcircuits.com/threads/electronic-spirit-level-for-5th-wheel.103100/#post-778624

    This will certainly be a multi-year project like all of my unfinished projects.
    I will be sure to post some photos along the way.

    What's it going to look like? A waste bin on two wheels
    I have already chosen a name for the robot: Isaac

    but I haven't come up with a meaning of the acronym ISAAC. Looking for suggestions.
     
  2. Dr.killjoy

    Well-Known Member

    Apr 28, 2013
    1,190
    156
    I hope it doesn't kill the builder like the original did....
     
  3. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    Solowheel.

    This is cool. Time to put away my unicycle.

     
  4. wayneh

    Expert

    Sep 9, 2010
    12,126
    3,048
    Some thoughts.
    I International, intelligent, internet, insane
    S System, sentient, silly, silicon
    A Asimov, automatic, anthropogenic, ampere, ambulatory, animatronic
    C Companion, computer, cowboy
     
    MrChips likes this.
  5. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    Thanks for the ideas:

    ISAAC

    Insanely Silly Automatic Ash Collector

    Intelligent Sentient Autonomous Aluminum Can
     
    absf likes this.
  6. wayneh

    Expert

    Sep 9, 2010
    12,126
    3,048
    Hahaha, I like that.

    Insanely Silly Animatronic Ash Can
     
  7. nerdegutta

    Moderator

    Dec 15, 2009
    2,515
    785
    I Stand Always Around Confused
    It'S All Around the City
    Idiots Smells Ants And Chemicals
    In Shit All Around is Clear
    Instant Super Aunt At Chin
    Instant Slack Agent After Coffee
    Important Smart After Action Circus
    Industry System Ancient Agent Circuit
    ...
     
    MrChips likes this.
  8. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,986
    745
    Intelligent System Avoidance And Collision
     
  9. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    Here are the parts I have acquired so far:


    Isaac's body:

    [​IMG]

    Isaac's locomotion:

    [​IMG]


    The can is 12" diameter x 16" tall.
    I have a rough idea on how to mount the wheels and motors to the base.
    What you see there is a 1/4" aluminum plate which I hope to cut into a 12" diameter base this weekend.
    Then I have to cut the wheel slots.

    I have a firm idea on the tilt sensor. That should be ready for testing some time during the week ahead.
     
  10. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    I like so far for ISAAC:

    I Stand Around Always Confused

    Insanely Silly Animatronic Ash Can

    With the latter in mind, one of the duties of ISAAC is to go around looking for smokers and inviting them to butt out. The lid of the can will pop open and invite them to drop their butt and ashes into the can. When they do so, there will be a flash of lightning and a loud explosion, followed by a round of applause.:D

    Then ISAAC can do a silly dance around followed by a bow.:cool:
     
  11. wayneh

    Expert

    Sep 9, 2010
    12,126
    3,048
    Hmmm, how does one bow on two wheels, with no waist?
     
    Dr.killjoy likes this.
  12. Dr.killjoy

    Well-Known Member

    Apr 28, 2013
    1,190
    156
    He would tilt forward as if to take a bow ..
     
  13. wayneh

    Expert

    Sep 9, 2010
    12,126
    3,048
    Don't the wheels have to stay under the center of gravity? Unless he can stick his butts out (hahaha), won't shifting the CoG will cause the wheels to accelerate in that direction?
     
  14. Lestraveled

    Well-Known Member

    May 19, 2014
    1,957
    1,215
    I Survived All About Circuits
     
    djsfantasi, atferrari, wayneh and 2 others like this.
  15. strantor

    AAC Fanatic!

    Oct 3, 2010
    4,302
    1,988
    Irradiated stainless autonomous ash can
     
    MrChips likes this.
  16. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    How did I not see the AAC?

    I Spammed All About Circuits.
     
  17. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    In the running for ISAAC so far:

    I Stand Around Always Confused
    Insanely Silly Animatronic Ash Can
    I Survived All About Circuits
    I Spammed All About Circuits
     
  18. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    Here is my experimental tilt sensor before sealing:

    [​IMG]


    And the sensor assembly, sans LEDs and phototransistors:

    [​IMG]
     
  19. MrChips

    Thread Starter Moderator

    Oct 2, 2009
    12,442
    3,361
    The wheel base and wheels mounted:

    [​IMG]


    Next to come:

    1) Mount the motors
    2) Attach the tilt sensor
    3) Develop the balance PID control.

    That's when the real fun begins!
     
    atferrari likes this.
  20. nerdegutta

    Moderator

    Dec 15, 2009
    2,515
    785
    Which MCU are you planning to use?

    How long are the tilt sensor?
     
Loading...