D4E1 - 4-wheeled Walker Feet

This add-on is created for people who struggle using the brakes on their 4-wheeled walker and need the stability of a 2-wheeled walker. It was developed together with Willy, an elderly man who suffers from Bechterew's disease. On top of that he had surgery done on his hands, which made it impossible for him to use the brakes on a 4-wheeled walker.

The project was commissioned by D4E1.

Material:

• Floor squeegee (or an rubber part with the following dimensions: 15cm x 7cm x 1cm)
• PLA-filament or something similar

Tools:

• A saw for metal and/or pliers
• A cutter (with cutting mat)
• A 3D-printer

Files

• 3D-Model

For the rubber part you can use the rubber of a floor squeegee. To take it apart you will need a metal saw and/or pliers. To cut it in the right dimensions, you will need a box knive and a cutting mat if needed.

The dimensions are: 15cm x 7cm x 1cm

To 3D-print this part you will need to download the STL-file and put it in a slicing software. The STL-file is for tiers with a diameter of 50mm. To change this diameter, or any other dimensions, you can download the editable file (https://a360.co/3FdcFXX) and make the changes there. The print for one foot will take around 2 hours.

Suggested print settings for PLA:

• Layer height: 0.32 mm
• Printing temperature: 205 °C
• Printing speed: 70 mm/s
• Infill: Grid, 15%
• No support needed
• No printed plate adhesion needed
• Print bottom down

For the assembly, simply place the rubber in the grooves on the bottom of the 3D-printed part. Put the brakes on permanent braking and click the add-ons on to the wheels. You're ready to go!