Amazing quad pick and place system tirelessly sorts your Legos

delta_robots

[Chris] is quite the devoted tinkerer. He recently wrote in to share what can only be described as a labor of love. His Quad Delta Robot system has been in the works for about six years now, split into periods of research, building, more research, and rebuilding until arriving at its current form.

The system is made up of four Lego NXT robots which are tasked with sorting Lego cubes by color as they come down a pair of conveyer belts. The robots were built to mimic commercially available pick and place robots which can be found on assembly lines all over the world.

Each robot operates independently, receiving signals via a light sensor which tells the robot where the next brick is located, as well as what color it is. This data is sent by the main NXT unit, which uses a lights sensor to determine brick color and position, relaying the information to the other bots via flashing LEDs. All of the robots receive the same signal, but much like NIC cards ignore frames not destined for their MAC, the bots ignore messages that are not addressed to them.

The machine is truly amazing to watch – it’s clear that all of [Chris'] research and planning has paid off. You have to check out the video embedded below to truly appreciate all of the work that went into this system. Also, be sure to swing by his site for a far more in-depth look at how the machines work, it is definitely worth the time.

19 thoughts on “Amazing quad pick and place system tirelessly sorts your Legos

  1. About the noise, there are over twenty motors running at the same time. I tried to cover it up by putting some music over it, but YouTube and their wisdom told me I was violating their copyright policy blah blah blah. I tried.

    Producing a movie like that with all the clips was tough. I think I have lost some hearing because of it, at least that pitch.

  2. Really really nice job. The inverse kinematics of a delta robot are not that simple, I’m impressed he could get an implementation into the NXT, even if slow.

  3. Awesome hack. Plastic gears and slow movement speed may not be the best implementation for a real world 24/7 situation but it looks good.

  4. @nikescar

    Finding a new wife, as the previous one escaped after seeing that in the living-room….

    Great job anyway, don’t listen to her ^^

  5. @Anon “Does anyone else get really annoyed when people pluralize Lego by adding an ā€œSā€?”
    Yes, more annoyed than when someone fails to capitalize all letters of “LEGO”

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s