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Ember  Stride  Robot




















Programme  02


Background




As urbanization accelerates, the number of high-rise buildings and densely populated areas increases, making fire rescue more difficult.

Traditional fire rescue equipment has limitations in these environments such as poor mobility, long response time and high risk. Quadrupedal robots are better able to adapt to complex fire environments due to their high mobility, teleoperable and modular design. Design goals include ensuring its stability, durability and user-friendliness in various terrains. Therefore, the development of quadrupedal robots for fire scenarios is urgent and relevant.

From 2012 to 2021, a total of 1,324,000 fires in residential premises occurred in China, causing 11,634 deaths and 6,738 injuries, with direct property losses amounting to 7.77 billion yuan; of these, 429 were large fires, causing 1,579 deaths and 329 injuries; there were two major fires, causing 26 deaths.

In 2021, a total of 748,000 fires were reported in China, a year-on-year increase of 196.8%; the number of fire deaths was 1987, a year-on-year increase of 68%, and the number of fire injuries was 2,225, a year-on-year increase of 187.1%. Among them, the number of casualties caused by fires in residential places accounted for 86% of all fire casualties, which had a serious impact.








 On 15 November 2010, a fire engulfed a 28-story apartment building in Shanghai, leading to the death of at least 58 people and injuring over 70, with some sources citing over 120 injuries.

The fire was triggered by sparks from unlicensed welders working on the building, which set the scaffolding alight. The rescue efforts faced challenges due to slow response times and the building's complex structure.





Manufacture



On 15 November 2010, a fire engulfed a 28-story apartment building in Shanghai, leading to the death of at least 58 people and injuring over 70, with some sources citing over 120 injuries.

The fire was triggered by sparks from unlicensed welders working on the building, which set the scaffolding alight. The rescue efforts faced challenges due to slow response times and the building's complex structure.





In order to experiment with the realisability of the shape, the straw moulds were first tested with a high-density foam board

High density foam boards are uniform in texture and easy to cut, with bamboo stick links for fitting stability




Based on the sketch, draw the details of the top view on the foam board  —  Split the foam board into small pieces with a saw —  Split the foam board into small pieces with a saw —  Making link structures such as fan blades, bearings, etc.  —  X-shaped bamboo skewers on the articulating surfaces  —  Straw model completed

Modeling








After modelling the robot's appearance and engineering, I carried out a structural mechanical analysis and tested the model to see if it met the requirements for 3D printing.

After passing the test, the printed resin parts were subjected to a series of operations, such as sanding-assembling-painting-air-drying-secondary painting (metallic paint), to obtain the desired model.


Final Design




Exploded View



Usage Scenario