As a note of the Multidisciplinary Assessment, we should create, as a group, a robot controlled by an Android cell phone, with the ultimate goal of participating of Robocup, an annual competition for the 1st year of Information Systems.
Guys, meet Baymax! 🦾
Observing the robots from previous competitions, we noticed that a recurring problem of the competitors was related to the design: they were all rectangular, that is, they had many gaps in both the offensive and defensive aspects and for this reason, we decided to opt for the circular format.
A circular robot could offer us high mobility when rotating on its own axis, and possibly a lower weight since the area of a circle is smaller than that of a cube/rectangle of similar proportions.
A circular robot, created by two fans of the animation "Operation Big Hero", couldn't be any other than Baymax, right?! It's time to apply some Project Management (Hello PMBOK).
Level 2
Requirements gathering!
The requirements were defined by the organization of the event, the main ones being:
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The robot must have a balloon fixation support;
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The balloon should be fixed at a height of 20 cm from the ground;
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Maximum weight of 2.5 kg (including batteries and wires);
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Maximum dimensions of 30cm x 30cm x 20cm (L x W x H);
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The weapon with a maximum range of 45cm radius when active.
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The weapon must remain within the robot's perimeter when inactive;
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The weapon's maximum active time is 15 seconds;
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The microcontroller used should be the Arduino Uno.
All rules can be checked by clicking the button below:
Phase 1
Field Reconnaissance!
Phase 3
Project!
Observing the proposal and requirements, we started with the project, which, by the way, was revised several times.
On the side it is possible to see in detail the plants used in the development of the project.
Most of the materials used were easily accessible and are available in several stores focused on the Maker culture.
The least accessible items were the omni-directional wheels (difficult to find in the necessary proportions), the carbon fiber rod used in the weapons (high price for being a premium material) and of course, access to a laser cutter to work the parts. of acrylic.
To view a detailed description, click on the image.
Download the documentation available below:
Phase 3.1
Upper Plate Design
At this stage, the big challenge was to implement a design that was user-friendly and as faithful as possible to the original Baymax, which ended up being problematic due to its minimalist design. It took three versions to find a format that conveyed the friendly air of the little robot. The secret was a slight bend in the centerline.
Phase 4
Construction!
With everything documented and planned, it's time to hands-on!
With the materials in hand and the acrylic sheets painted white, we started the process of building the robot. The process was documented step by step and can be followed below:
Phase 5
Schedule!
In the window below, you can see the full code used in Baymax. You can also download it or open it in a new tab.
Image: Playback | Walt Disney Company ®