Folding Stairs

This project was done during Industrial Design studies at HIT- Holon Institute of Technology, as part of Fixperts course instructed by Prof. Gad Charny and Dana Yichye Shwachman.

The steps were created in collaboration with Marganit kindergarten from the Liman group, with the purpose of helping the children to wash their hands in a tall sink and practice basic capabilities.

The steps are foldable and have rails. They were designed for children with mobility impairment, stability issues and other special needs to allow them to reach the necessary height of the sink safely.

Supplies

Step 1: Explode View

Explode View

Step 2: CNC Cutting

CNC processing steps:

1. Break the edges of the CNC parts.
2. Filling is necessary to create a wider angle (see the picture of illustration below).
3. Finish using water based Varnish.

Legend:

Blue - 4mm milling cut

Green - 2mm milling cut

Milling cutter 4mm end

Step 3: Aluminum Profile Bending

Aluminum profile 25mm, thickness 4mm diameter 2m.

For each rail, drill one of its sides in such a way that the holes will mirror each other.

Step 4: Rubber Cutting

1. Cut the rubber in accordance with the measurements.

Step 5: PLA Prints

Printing settings:

1. 3d printer: Creality Ender 3 pro
2. nozzle size 0.4 mm
3. Profiles default: 0.16
4. Infill: 20%
5. Support: v
6. Walls line count: 3
7. Print speed: 50

Step 6: Readymades

1. Buy the readymade parts listed in the BOM (18-26).
2. The main hinges (18) should be cut and folded in accordance with the measurements.