go_away

Author Topic: Famous Mini-Robots  (Read 3393 times)

0 Members and 1 Guest are viewing this topic.

Offline vidamTopic starter

  • Supreme Robot
  • *****
  • Posts: 423
  • Helpful? 1
  • Robotronics.org
Famous Mini-Robots
« on: February 01, 2008, 01:52:30 PM »
Does anyone know of famous mini-robots of our time or in the last decade. A mini-robot is about the size of 1000 cubic centimeters. That is .001 cubic meters or 1,000,000 cubic millimeters converted into other units. I can't think of any famous robots off the top of my head. I did a google search and could not find anything else except people's home/school based lego robot projects.
« Last Edit: February 01, 2008, 01:59:30 PM by vidam »


Offline Trumpkin

  • Supreme Robot
  • *****
  • Posts: 1,177
  • Helpful? 5
Re: Famous Mini-Robots
« Reply #2 on: February 01, 2008, 04:30:34 PM »
those are too cool! ;D
Robots are awesome!

Offline vidamTopic starter

  • Supreme Robot
  • *****
  • Posts: 423
  • Helpful? 1
  • Robotronics.org
Re: Famous Mini-Robots
« Reply #3 on: February 01, 2008, 07:18:22 PM »
Del,

I knew about the MIT ants, Sandia mini-robot but not the others you list.

Alice is pretty small too but more like a micro-robot than a mini-robot.

http://asl.epfl.ch/index.html?content=research/systems/Alice/alice.php


Offline Ro-Bot-X

  • Contest Winner
  • Supreme Robot
  • ****
  • Posts: 1,431
  • Helpful? 25
  • Store: RoBotXDesigns.ca
Re: Famous Mini-Robots
« Reply #4 on: February 02, 2008, 01:48:04 AM »
I also knew about these pico and micro bots. There is another I have found a few years ago that I never managed to build. You will see it below, but here is the link to the builders page: http://chanhak.com.ne.kr/

Here are the Pearl micro robots:






And Peace micro robot:


« Last Edit: February 02, 2008, 01:53:00 AM by Ro-Bot-X »
Check out the uBotino robot controller!

Offline SmAsH

  • Supreme Robot
  • *****
  • Posts: 3,959
  • Helpful? 75
  • SoR's Locale Electronics Nut.
Re: Famous Mini-Robots
« Reply #5 on: February 02, 2008, 02:00:04 AM »
does that one with the green batterys have suspension?
Howdy

Offline Ro-Bot-X

  • Contest Winner
  • Supreme Robot
  • ****
  • Posts: 1,431
  • Helpful? 25
  • Store: RoBotXDesigns.ca
Re: Famous Mini-Robots
« Reply #6 on: February 02, 2008, 04:51:59 AM »
The wheels assembly rotates around the motor axle and acts as suspension. This approach however introduces extra friction on the motor axle when turning. But because the robot is tiny, this doesn't matter greatly. As you can see in the first picture, the wheels assembly is made out of plastic, which acts as a low friction bushing and the bushing part is wide enough. In the next pictures, the wheels assembly is made out of some fiberglass or something similar, probably from a PCB board without the copper. The bushing part is narrow, which creates problems when turning.

I really like the tightness of the board and the miniaturisation, but still using regular parts, not SMD parts. The motors are driven directly by the PIC microcontroller, not through an Bridge circuit. Pretty hard to find motors that will not draw more than 20MA. I think these motors can be found in old Mac floppy drives.
Check out the uBotino robot controller!

Offline cooldog

  • Supreme Robot
  • *****
  • Posts: 751
  • Helpful? 4
  • be nice to nerds, one day they will be your boss
Re: Famous Mini-Robots
« Reply #7 on: February 02, 2008, 07:20:48 AM »
why are tracks so commin
robot will rule the world and i will be building them
-admin

favorite web sites
http://www.societyofrobots.com/
http://www.instructables.com/

Offline ed1380

  • Supreme Robot
  • *****
  • Posts: 1,478
  • Helpful? 3
Re: Famous Mini-Robots
« Reply #8 on: February 02, 2008, 09:43:58 AM »
because you need 4 wheels. and  4 motors will take up too much room and battery life. so they connect the wheels together and it makes tracks. and it's cooler
Problems making the $50 robot circuit board?
click here. http://www.societyofrobots.com/robotforum/index.php?topic=3292.msg25198#msg25198

Offline Admin

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,665
  • Helpful? 169
    • Society of Robots
Re: Famous Mini-Robots
« Reply #9 on: February 17, 2008, 01:13:41 PM »
just an FYI, at the microscale such as on these robots, tracks are even MORE inefficient (than larger robots, tanks, etc) due to scaling laws . . .

I think they use tracks just because its mechanically simpler that way to synchronize the wheels. Gears would be more efficient, but complicates the assembly . . .

 


Get Your Ad Here