Let's Make Robots!

Cross the gap.

Winners as voted on by my family as follows below:


Game: Cross the gap.

Objective: Build an autonomous robot that starts completely within a 12 inch by 12 inch by 12 inch square box.

It must then cross a 12 inch gap and stop on the other side without any part of the robot touching the start side when done.

In order to win you must show a video of your robot completing this task, show the robot measurements and gap measurements in the video, and include the LMR logo on the video.

Fastest time to do so, and meet these constraints wins. Timing will start when the robot leaves the start box till its on the second table and not touching the start table. In the event of a tie, or controversy, public vote will decide a winner.


Prize for fastest completion goes to:   antonio.caciuc

  • Freescale 68HC11 microcontroller, 32KB Flash RAM, RS232 serial port programming interface, 2-line by 16-character LCD, Piezo buzzer for sound, 4x DC motor ports, 6x servo motor ports, 9x Digital inputs, 8x Digital outputs, 21x Analog inputs, w/ Interactive C software and code examples.
  • a pair of new metal gear motors
  • some assorted sensors - new unused.




Prize for the robot I find most interesting goes to: Kelpy (I was close to picking the NXT entry, but really liked the fabrication.)

  • A new Parallax Basic Stamp controller, product details can be found on their website, w/ software, cable, tiny breadboard.
  • 1 new unused servo, 1 used servo of same brand.
  • some assorted sensors - new unused.


Prize my family voted for most interesting:    sebathorus  (the first event entry)

What did you win? You will find out soon enough.



I am emailing the winners to send them their prizes. So winners check your inbox.


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voodoobot's picture

I replied to kelpys response and wondered if you could clarify one point in particular...

Are objects that the BOT interact with considered part of the BOT? 



winfieldrobotics's picture

I didn't look this far into this when coming up with these rules.

I wanted to make a simple comp, with simple rules, in order to get creative results.



But I would think the robot would be defined as whatever mechanical device is used to accomplish the task of the robot crossing the gap.


voodoobot's picture

Which could mean that other non robot "mechanical devices" could be used without constraint? 

Kelpy's picture

Don't think so, voodoobot ;)


Quote "whatever mechanical device is used to accomplish the task" unqoute

voodoobot's picture

Lol, the semantics game.....  :D

The complete quote was...

A robot would be defined as--> "Whatever mechanical device is used to accomplish the task of The Robot crossing the gap."

He said "device is", not "devices are".....this is important in defining the rules....

The Mechanical device,which I refer to as The Robot. 

A lightswitch is not a robot but it is by definition a mechanical device, but it could be used by the robot for completing the task....So can a pully system or a gearbox...

I just want to make sure the rules are clear enough and disambiguate anything that might not be....  :) 


Kelpy's picture

 We could debate this forever.

Suffice to say, I'm aiming to get everything used from one square to the other.

(Probably have to use telekinesis :D )

ezekiel181's picture

This is what I am going for as well. Get everything from table A to table B.

voodoobot's picture

My goal is to complete the challenge within the confines of the rules...   :)

winfieldrobotics's picture


Wow, creating a challenge is a tough job!!!

You guys are too smart, and looking into the details farther than I did!!!  -LOL


I'll have to define more rules on the next comp I make.


winfieldrobotics's picture

You guys have inspired me to make an entry. (just for fun, I can't win)

So I'm going to hack my Mr Tidy to complete this task.