Board Cleaner Robot

Hello everybody! I'm new here and I would like to share a project I am working in with some partners in university. It is a board cleaner robot. It is made with Lego Mindstorms 2.0. This robot has two important parts:

- A car with 4 wheels, which moves all along the board it has to clean

- An arm that has two movements: up and down and forward - backward

Finally the robot is finished, I hope you enjoy the videos. Thanks for your patience.

it erases any kind of board

  • CPU: Lego Mindstorms
  • Target environment: A classroom

This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/board-cleaner-robot

Cool! :DWelcome!!That is

Cool! :smiley:

Welcome!!

That is going to be a fun project, looking forward to see that!! And I am sure after a while you will have to try to put a pen in the hand of the robot and make it draw as well :wink:

/ Fritsl

That’s cool, one thing I

That’s cool, one thing I really wanted to make was a robot that would wander around all day, maybe using light sensors to follow the sun, and just set it down on a big piece of paper with a pen strapped to it, to get a map of its wanderings.

Does your robot operate vertically on an upright board? When you say ‘board’, I’m imagining a blackboard or a markerboard, is that what you mean? Or some other kind?

Dan

My robot
Yes, It is supposed to clean a blackboard, or any kind of board that may be in a school, so it will work vertically. Today we have put together the two parts of the robot and it really looks very nice. I think it will work quite good, I hope on friday I can upload some pictures or small videos of it. That way you could see it really works vertically, at least for now.

Interesting, I’m curious to
Interesting, I’m curious to see how that works.

type of board
It is supposed to clean any type of board. I mean, it will have an accesory in which we can attach a towel (or similar, to clean market boards) or a eraser (to clean blackboards). But we haven’t designed this accesory yet. I hope on friday I can upload some images and videos of the robot for you to have an idea on how it works.

videos
as you can see finally i’ve managed to add a photograph and a video of the robot. Here it doesn’t work as it should, but I’ll upload more videos when our robot is finished. Thanks for your patience, it’s taken so long to update these image and video because we had some trouble during the building process of the robot, but finally we succeeded and by now it is almost finished (only some details are missing).

finished
finally it is finished, I’ve uploaded a new video where you can see how it works. We have added a light sensor to detect the end of the board and return to the beginning.

It is a little slow, do you

It is a little slow, do you have mindstorm nxt?

 

no
no, we only have mindstorms 2.0 in university.

Plotter!

Yes! Why not? It’s basically a big X-Y plotter! Excellent idea.

God created the integers; all else is the work of man - Leopold Kronecker

"Pre-engineered?"

Lego robots aren’t pre-engineered! I would say they’re “pre-machined” as you don’t have to manufacture parts, but buolgin interesting Lego robots definiretly requires engineering.

God created the integers; all else is the work of man - Leopold Kronecker

Trade-off

There’ll always be a trade-off between power and speed. If you went commercial, you’d use a more powerful motor, which would support a higher gearbox ratio. This is still an excellent prototype.

God created the integers; all else is the work of man - Leopold Kronecker

Light Sensor

I see the light sensor illuminated in the background. What’s it used for? Detecting the distance from the board?

God created the integers; all else is the work of man - Leopold Kronecker

All buolgin does! / Fritsl

All buolgin does!

/ Fritsl

light sensor
no, it is used to detect the end of the board and make the robot return to the beginning. It also has a touch sensor that detects the board and activates the eraser.

Nice job, you don’t see

Nice job, you don’t see enough Lego robots on LMR these days.