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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Yes, I'll have to try building something.

Sounds fun.

Cool challenge. Back in my early teenage years I used to love making up contraptions that could cross gaps or scale objects using lego technic.

A question regarding the table tops. Does their make up or material matter? Say, must they be a smooth wooden surface or can it be metal, fabric, cushioned etc..?

I don't care about the tables, just the rules explicitly defined.

Use this undefined table rule to your advantage and build a bot.

You have at some level thought about entering or else you wouldn't have replied to ask a question.

Wink, Wink, Nudge, Nudge!!!


You could take a small robot you already have, then add duel cable launchers like they have in spy movies, then have the robot drive across the cables to clear the gap, then since the table material would be soft for the cables to stick into, you could simply reel them in via worm gear drive. -LOL


Yes that`s one of the ideas I had in mind :) At first I thought of a bridge deploying robot but that has been done many times before. I think I`ll try something a little more unorthodox.

That was my idea but proved to be not the right to way to accomlish such an achievement.

I was just kidding ezekiel181 in my proposed solution (above) but if you did make that idea work, that would be really cool to watch.


Also I was cleaning my closet and found another new "off brand" controller board, so there might be additional prizes pending, once I get through the rest of these boxes.....maybe a prize for most interesting way to solve or something. We will have to wait and see on that.

I teach science and have been collecting robots for years. Thats where this stuff is coming from, in case you were curious.

Why not? I mean, sure, it's not going to be very fast but still... should be a viable solution

Is there any chance you are from Winfield Ks, home of the famous Walnut Valley Bluegrass Fesitival?

PS  I'd like to see a Walter "mini-mee" enter this challenge :-)

Seriously, I think it would be cool.