Owner & Collaborators

License

SARMA in Sri Lanka-Team9: by FablabShinagawa, Kaveesha, Thejana, Dasith, Nadeeka, Tharanga, Ravindu is licensed under the Creative Commons - Attribution license.

Summary

This project focuses on designing and Developing 3D printable assistive device.We design and develop holding system for Rollator walker.

Recipe (6)

Memos (0)

Materials

Tools

Blueprints

Making

About the Need knower
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•Name: Master Abheetha

•Age: 8 years old
Grade : 4
Interests/Strengths : He is an independent communicator.Abeeth has dedicated parent

•Diagnosis: Cerebral Palsy (CP) GMFCS level 3/ MACS level 2 and Cerebral Visual Impairment (CVI) level 3

•Assistive device used: Rollator (Posterior Walker)
Comments
- Communication
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  Child is a meaningful and independent communicator.
  Child is having a very good situational understanding
  Able to answer for questions while thinking critically
  Child is very cooperative and attentive for the activities
  Didn’t present with any challenging behaviors
  
  Comments
- Physical challenges
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  Gross Motor: The child has muscle tone and coordination issues, with a weaker left side and difficulty controlling his walker due to visual perception challenges.
  
  Fine Motor: His left hand is weaker than the right, with limited wrist extension, forearm supination, and reduced strength.
  
  Comments
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Subject/Needs
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Braking System for worker: A customized, user-friendly brake to improve safety and stability.

Independent Accessibility: Modifications to help the child enter the posterior walker without support.

Directional Control: A steering mechanism to prevent unintended movement and improve navigation.
Comments
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Ideas
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Comments
- Idea 01 - Braking system based on a bicycle lever
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  Sketch 01
  This idea involves adapting the mechanics of a bicycle brake lever to the rollator walker. By using a similar lever system, the user can control the brakes with minimal effort. Pulling the lever would engage the brakes, allowing the user to stop or slow down the rollator with ease.
  Comments
- Idea 02 :Braking system based on hand rest movement
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  Sketch 02
  The concept of using Push down lever.When the user activates the brake, air pressure is directed to a braking mechanism, which would create friction to slow or stop the rollator. This system could offer smooth and adjustable braking force, making it easy for the user to control.
  Comments
- Idea 03: Braking system based on a gear lever
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  Sketch 03
  This idea utilizes a gear shift-style lever to control the braking mechanism.Pulling or pushing the lever would engage a set of brakes on the rollator. This setup would provide easy and intuitive control for the user, allowing them to adjust the braking force with a simple movement.
  Comments
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1st Prototyping
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Comments
- Step 01 : Select Best solution
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  We chose a gear lever braking system for the rollator walker. To make it more fun, we will 3D print parts in his favorite color, blue. Adding car-like controls will help him feel like he is driving, making the experience more exciting and engaging for him.
  Comments
- Step 02 : Sketch Drawing
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  01. Initial Sketch
  02. Sketch with measurements
  03. Final Sketch
  Comments
- Step 04 : 3D Printing
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  bottom right
  main mount
  bottom left
  bottom cable mount
  assemble_break_lever_-_gear_Part
  assemble break lever - gear rod
  bottom_right 3
  assemble break lever
  Comments
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Results
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Braking
Full system
shaft
Shaft Holding
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Future Prospects
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Lightweight Materials – Use aluminum or reinforced plastic for durability.
Smooth Braking – Reduce friction for better control.
Auto Lock – Engages when released for safety.
Adjustable Resistance – Customizable stopping force.
Ergonomic Grip – Improve comfort and usability.
Comments
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