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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Time for Frits's jumping robot to be resurrected... 

The robot has to be exactly 12 inch tall or it can be shorter than that ?

The starting size must be able to fit inside a 12 inch x 12 inch x 12 inch box, and the video needs to show this.

So smaller is ok.

What would fastest time be rated as? Time from touching the table outside the "box" to the time when "untouches" the first table? I'd like to enter, not to win but to have fun. Thanks for doing this! Fun challenge.


Yes, I plan on timing runs exactly as you described.

If there's a tie, or runs too close to call, then I'll choose based on my distorded judgement of robot "cool factor", and public opinion.

(I've only got 1 fancy new controller to give away....)



Ok, thanks! That helps. I have one more question. Would it be all right to have something attached to either table, say hooks for a grappling hook tosser or something similar? They would be attached firmly to the table and wouldn't move at all. Oh and I imagine it would be all right to add lines and other shapes to the table with paint or tape, right? I'm starting to think fancy, like hacked WiiMote with IR LEDs on the other side to help get lined up. Thanks again, this will be fun!

There's no defined rules regarding the table, just the gap, size, etc.

Be creative!!!

(I'll be repetitive here :) Ok, thanks! I now have to put my thinking cap on and, what else, start thinking!

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