Fixperts - Adjustable Tray for Wheelchairs

Adjustable tray designed for wheelchair users, making it easier to carry plates and other items after eating. While its primary function is to assist with transporting dishes, it can also be used for various tasks, such as holding books, laptops, or personal belongings.

Design & Features:

1. IKEA Bamboo Tray Base – A sturdy, lightweight, and visually appealing surface that serves as the main tray.
2. 3D-Printed Adjustable Brackets – The tray is secured using custom 3D-printed parts that attach to the sides of the wheelchair’s armrests, ensuring a stable and adjustable fit. These brackets allow for easy installation and removal.
3. Stainless Steel Support Rods – Provide durability and strength while allowing the tray to be positioned at different widths.

Assembly video below

An Industrial design student project by Noa Yosifon & Tomer Neumann

Holon institute of technology, Israel

parts -

1. Armrest attachment x2
2. Tray attachment bottom x2
3. Tray attachment top x2
4. Middle stopper bottom
5. Middle stopper bottom lid
6. Middle stopper top cap
7. Metal rod cap
8. Spacer x2
9. M5 hex-head bolt 25 mm x2
10. M5 nut 40 mm x2
11. 10 mm wood screw
12. Bent stainless steel rod x4

Ikea "OSTBIT" bamboo tray

https://www.ikea.com/gb/en/p/ostbit-tray-bamboo-30452991/

Glue -

1. Double sided tape
2. Super-glue

PETG filament

Tools -

1. Tape measure/ruler
2. Scissors
3. Allen Key
4. Screwdriver
5. Pencil
6. Heat blower
7. Silicone based lubricant

Print settings -

1. Material - PETG
2. Layer height - 0.1-0.16
3. Walls - 3
4. Infill - 10%

In the print slicer, add a pause on the last layer of the hex hole.

5 mm nut, height - 4 mm

Cut 5 mm rods to 36.5 cm

Bend rods to 90 degrees 1.5 cm from end

(4 rods total)

Remove spacers after final positioning.