High School Project - Mini Airhockey Table with Robotic Arm

In summary, the robotic arm in the mini airhockey table is controlled by a microcontroller and sensors that detect the position of the puck. The materials needed to build this project include a microcontroller, sensors, motors, a wooden board, a power source, and various tools. The time to build it can vary from a few hours to a few days, and it can be controlled remotely using a wireless communication module. However, safety concerns must be considered when working with the robotic arm, such as proper wiring and avoiding injuries from the moving parts.
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jkengineer
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[Mentor Note -- This thread start is outside of the normal scope of PF, but we are allowing it because it's a pretty well-done project for the level of the student] :smile:

Hi all,

I would like to share my high school engineering project - A Mini Airhockey table with Robotic Defender:
https://www.instructables.com/Air-Hockey-Table-With-Robotic-Defender/

Thanks
 
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Thanks for allowing the post.
 
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Great efforts on the sketch-it build. The servo error feedback must have been a significant challenge just to convert vector red-shift to target position.
 

1. What materials are needed to build a mini air hockey table with a robotic arm?

To build a mini air hockey table with a robotic arm, you will need materials such as plywood or MDF for the table base and surface, a blower or fan to create an air cushion, plastic or aluminum for the sides and goals, and a microcontroller like Arduino for the robotic arm. Additionally, you'll need servos or motors for the arm's movement, sensors to track the puck, wires, and possibly Bluetooth modules for remote control.

2. How does the robotic arm integrate into the air hockey game?

The robotic arm in a mini air hockey table is typically used as an automated opponent. It is programmed to move according to the position of the puck, which can be tracked using sensors placed around the table. The arm uses motors or servos to strike or block the puck, aiming to mimic human gameplay. Integration involves connecting the arm's control system with the sensors and programming the microcontroller to respond to the puck's movement dynamically.

3. What are the dimensions of a mini air hockey table suitable for a school project?

A mini air hockey table for a school project typically measures around 24 inches in length and 12 inches in width, although sizes can vary depending on the available space and design preferences. Ensure the table is large enough to allow for enjoyable gameplay and small enough to be portable and easily stored in a classroom setting.

4. How can the performance of the robotic arm be optimized for faster response times?

To optimize the performance of the robotic arm for faster response times, focus on improving the software algorithms that control the arm's movements. Utilize efficient coding practices, reduce latency in the sensor input, and consider upgrading to faster and more precise servos or motors. Additionally, calibrating the arm to ensure it moves in the most direct path possible to the puck can decrease response times.

5. What safety precautions should be considered when building and using the mini air hockey table?

Safety is crucial when building and using a mini air hockey table, especially with a robotic arm involved. Ensure all electrical connections are secure and insulated to prevent short circuits. Use covers or guards around moving parts like the robotic arm to prevent pinching or crushing injuries. Additionally, make sure the table is stable and won’t tip over during use. Always supervise young students when they are using the table to ensure safe operation.

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