• Wood stand for Exo ALICE

    Guillermo Herrera-Arcos08/08/2017 at 17:02 0 comments

    In the last days, we have been working on a wood stand for our robotic exoskeleton. While doing tets with both legs, we realized we needed more space so the legs could move with more liberty.

    Here's a picture of day 1:

    We finished the wood stand in only two days. Here's a picture of our stand:

    Now, we will put the legs in the stand and try our two-legged locomotion algorithm.

    Thanks for reading.

  • Legs with the electronics ready for tests

    Guillermo Herrera-Arcos08/03/2017 at 01:27 0 comments

    After some tests with the Knee of our exoskeleton, we have assembled the two legs and implemented the electronics on them. We have put most of the the micrcontrollers, drivers and cables on the exterior of the exoskeleton, for better user's ergonomy and comfort.

    This is me, figuring out how to put all the electronics:

     Now, our prototype looks like this:

    We have started the tests regarding the two-legged locomotion. Soon, we will share our progress.

    We are very happy and proud to announce that our Exo was one of the 20 finalists in the Wheels, Wings and Walkers portionf of the Hackaday Prize. We sill continue working to open new opportunities for the people in need of these devices.

    Thanks for reading.

  • Enhanced Control Algorithm

    Guillermo Herrera-Arcos07/22/2017 at 16:52 1 comment

    The enhanced version for our control algorithm is ready. Thanks to accelerometers, we can detect the exact position of the leg and implement a closed-loop control system for the movement of the leg. Here's a demo of the movement of Exo ALICE leg:

    Thanks for reading.

  • Control Tests

    Guillermo Herrera-Arcos07/10/2017 at 17:50 0 comments

    We have started some control tests with our Exo ALICE knee prototype. Our control algorithm is based on the position of the knee using a joystick. For these tests, we are using a Monster Moto Shield connected to an Arduino Due to control position and speed.

    Here's a video:

    What's next? Enhanced version of the control algorithm based on accelerometers.

    Thanks for reading.

  • Excited for wheels, wings and walkers

    Guillermo Herrera-Arcos06/22/2017 at 15:32 0 comments

    We are very excited to continue working on our robotic exoskeleton, a walker device that will help millions of people around the world with mobility problems.

    In the last days, we finished our right knee exoskeleton prototype. We assembled the 3D printed parts and make some mechanical tests, everything seems perfect. Here's a picture of the right knee.

    Now, we are working with the electronics and motor control. Soon, we will publish the list of all the materials needed for building a robotic exoskeleton.

    Thanks for reading.

  • 3D printing exoskeleton parts

    Guillermo Herrera-Arcos06/14/2017 at 15:03 0 comments

    One of the main goals of this project, is to make it low-cost so people all over the world can afford it. 3D printing technology is essential for rapid prototyping and for reducing costs.

    After several hours of 3D printing, right knee parts for our robotic exoskeleton prototype are ready.

    We used PETG material for higher stiffness.

    Here's a video of the right knee efector in layer mode before printing the piece:

    And here, a picture of the 3D printed parts:

    What's next? Mechanical assembly and tests.

    If you are interested, feel free to leave a message.

    Thanks for reading.

  • Mechanical Design

    Guillermo Herrera-Arcos06/02/2017 at 02:47 0 comments

    Last days have been all about 3D modeling. After several weeks, ALICE is completed in terms of mechanical design.

    This is ALICE, designed by Jesús Tamez-Duque and Karen Acosta.

    What's next? We are going to 3D print the right knee joint and start prototyping with it, wait for updates.

    Thanks for reading.