Can You Build A Klann Mechanism Spider Robot With Strawbees?
Objective:
Design and build a six-legged spider robot using Strawbees robotics kits and incorporating a Klann mechanism for efficient movement.
Materials:
- Strawbees STEAM Classroom or Starter with Micro Bit Bundle
- Possible additional materials, as determined by students (ie: rubber bands or gears) - this is optional.
- Video for examples
- Engineering & Reflection Sheet
Instructions:
- Introduction to Klann Mechanism:
- Explain the concept of a Klann mechanism to the students, highlighting its importance in robotics for creating efficient leg movement similar to that of spiders.
- Note: The Klann linkage is a planar mechanism designed to simulate the gait of a legged animal and function as a wheel replacement or leg mechanism. It consists of a frame, a crank, two grounded rockers, and two couplers, all connected by pivot joints.
- What the videos for examples:
- Brainstorming and Design:
- Divide students into teams and encourage them to brainstorm ideas for designing a six-legged spider robot using the Klann mechanism.
- Provide them with the Engineering & Reflection Sheet to sketch their initial designs.
- Prototype Construction:
- Once the teams have finalized their designs, provide them with the Strawbees robotics kits and other materials, as determined.
- Instruct them to start building prototypes of their spider robots according to their designs.
- Encourage experimentation and adjustments as they progress.
- Incorporating Klann Mechanism:
- Guide the students in integrating the Klann mechanism into their spider robot designs. Explain the function of the mechanism in facilitating efficient leg movement.
- Assist teams in troubleshooting any challenges they encounter while incorporating the mechanism.
- Testing and Iteration:
- After completing the construction, allocate time to test the spider robots.
- Set up a testing area with different surfaces and obstacles to observe how well the robots navigate.
- Encourage teams to analyze the performance of their robots and make any necessary adjustments or improvements.
- Presentation and Reflection:
- Each team will present their spider robot to the class, explaining their design choices and the function of the Klann mechanism and demonstrating the robot's movement.
- Facilitate a discussion where students reflect on their design process, challenges faced, and lessons learned.
- Have each student utilize the Engineering & Reflection Sheet to note their challenges and reflect on their project and processes.
- Extension Activities (Optional):
- Allow teams to compete in challenges, such as speed races or obstacle courses, to test the capabilities of their spider robots.