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How to make a robot in 24 hours

When the category in which he planned to speak, will not, and exams are not far off.



Foreword

So it turned out that this season I was seriously engaged in only micro-sumo: I started doing the robot in July 2013, finished by the end of March 2014. Competitions are a usual robot sum, but the mass of the robot should not exceed 100 grams, and the robot itself in the starting position should be placed in a cube 5 cm * 5 cm * 5 cm. Exhibited it only at some competitions on April 6, there he was the only robot.



Black Python is competing with double-sided tape:

')





Since there are currently only 2 robots of this class in St. Petersburg, this competition was not included in the May competitions. And since I wanted to make a speech, I decided to make a quick line-racer, a robot for moving along the line, since for 5 years they had about 10 pieces of passion for robotics (not counting the ones made of Lego).



Design

Since the task was to make the robot in the shortest possible time, we had to resort to a ready-made solution: Freeduino Nano, a modular engine driver and a ready-made sensor bar. The opportunity to start the robot appeared only on Saturday at 12 o'clock.



14.00: A bullet in micronica for the missing details!



15.00: Fuh, I came home with everything I needed.

15.30: Ate, you can and design. I really wanted to make a beautiful robot, but the presence of modular parts and a limited amount of time reduced it all to nothing, so I didn’t think much about the design and layout.

18.30: Here is the final layout (there were 2 more).







Manufacturing

At first, the plan was simple: LUT -> board sawing -> drilling -> soldering -> mounting of motors and sensors. But when did everything go without incident? Only matte paper remains, which is not comme il faut for LUT, the details are scattered in bags and boxes, etc.

18.35: Well, damn, not translated.

18.40: Well, blinin, the toner does not come off, you have to cut the textolite again.

18.50: Phew, now translated.

19.00: I got sick, now I’m drilling.







19.10: I sawed it out.

19.15: Soldering, soldering and soldering again.

19.30: Ahhh! The connectors cannot be soldered, so that I once again make the paths LUT on the same side as the elements.

20.20: Oh, that's all, just throw the wiring below.

20.40: Oh her, the stabilizer is working, not even heated. You can take a break for pizza.

10.21: It's time to continue making the bot.

21.30: And where is the engine driver?

21.50: Found it. Now you need a neat train to connect duni with sensors.







22.20: Ok, now the motors. 10.30pm: Why did the mount crack?







22.40: Hmm, what are the rails for the sensor to do?

23.10: Ok, this is the problem of tomorrow.

23.25: Short. It is necessary to solder a bit.

23.30: Soldered. Works, not heated.

23.50: Well, Arduino, progr already!

00.30: There are no drivers for it, so what to do. Tomorrow I'll change it for another. And now we need to get ready for the competition and sleep.







9.30: Came to the competition.

10.00: Registered, I chose the field (line thickness -1.5 cm)







12.00: Everything, with the design finished, Nana changed, put the slats, glued.

12.30: Looked at other types, and you can start progot.

13.00: On the P-controller at 28% speed, the bot completely drove the test track! So the robot turned out in one day.



Conclusion

The races started at 3:30 pm, so there was time to improve the results. I wrote PD, then Kostya (my partner) took over the initiative and started to debug and improve the program with great enthusiasm. We chose the song Muse - Madness as the “anthem” of this robot, when it sounded debugging. During the first attempt, the robot drove the track in 16 seconds, during the second and last in 14.25, the same result as the winner. But he has a better first attempt than ours, so we took II place.







And, actually, photos of the robot:















Check-in video:



Source: https://habr.com/ru/post/224171/



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