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Simple experimenter's base — Parallax Forums

Simple experimenter's base

robomakerrobomaker Posts: 12
edited 2012-03-16 06:23 in Robotics
Here is a basic platform I created to play with sensors with the BS2. He is currently equipped with 2 contact bumpers, 3 ping sensors and a headlight just for fun. This platform has been reused in several variations over the last year, at one time or another he has used color, motion detectors and even an arm from an OWI-007. Nothing elaborate but has been alot of fun and has proven to be quite easy to modify as needed. I am attaching instructions and a few pictures of the present bot. Hope this may give some ideas to first time builders.Attachment not found.Attachment not found.Attachment not found.Attachment not found.
Robot model B 003.jpg
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Robot model B 002.jpg
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Robot model B 001.jpg
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bmp
bmp
Bbot-construction.bmp
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Comments

  • robomakerrobomaker Posts: 12
    edited 2012-03-15 00:46
    Sorry construction details have to be viewed through PAINT
  • ercoerco Posts: 20,256
    edited 2012-03-15 01:26
    Nice job, robomaker! Homebuilt bots are the best way to learn and it looks like you've learned a lot building that great platform. Welcome to the forum.
  • TtailspinTtailspin Posts: 1,326
    edited 2012-03-15 08:13
    Now thats what you call "Real Estate"... Three stories, and room to grow, I like it. :thumb:

    Whats that thing on top?



    -Tommy
  • ercoerco Posts: 20,256
    edited 2012-03-15 08:44
    A headlight just for fun, I'm deducing from his first post.
  • Duane DegnDuane Degn Posts: 10,588
    edited 2012-03-15 10:22
    Cool robot robomaker.

    If (with MS Paint) you "save as" a png file, your 1.67MB bitmap becomes a 53.1KB png.

    I hope you don't mind if I post it here for others to see.
    attachment.php?attachmentid=90616&d=1331832042


    I'm a bit concerned by "12 and 6 volt motor power supplies are isolated from the BS2."

    I'm pretty sure your 12V and 6V grounds should also be connected to the 9V ground.

    What kind of motor controller(s) are you using?
    Bbot-construction.png
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  • ercoerco Posts: 20,256
    edited 2012-03-15 10:35
    I use & love those gearmotors: http://www.youtube.com/watch?v=VzbKlwc4GWs

    http://forums.parallax.com/showthread.php?117280-Nice-10-Gearmotor&p=853015#post853015
  • robomakerrobomaker Posts: 12
    edited 2012-03-15 21:12
    Indeed all voltage supplies share a common ground except the motor batteries. I simply meant that the same supply doesn't seem to work well for both the motors and controllers/BS2. The drive system is a pair of MOLON part # CHM--2435-1. These are one piece motor/gearbox and a 4 7/8 inch wheel with removable rubber tire all in one pre-assembeled unit. That are available from MARLIN for $ 9.00. Perfect for medium sized hobby bots, easy to use and dirt cheap! See MPJA@MPJA.com. Hey erco been a while. You introduced to me these gearboxes if memory serves me. I actually still use a relay based motor controller that I have used in bot after bot after building it about 30 years ago. Primitive I know but Hey if it ain't broke don't fix it. I will have to change the format and will upload the schematic.
  • robomakerrobomaker Posts: 12
    edited 2012-03-15 22:08
    Here is my old school motor controller
    RELAY MOTOR CONTROLER.JPG
    .
    RELAY MOTOR CONTROLER.JPG
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  • photomankcphotomankc Posts: 943
    edited 2012-03-16 06:23
    "click clack". It's still a satisfying sound, if a bit battery, well.... intensive.
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