Comparison of the cost and time of manufacturing 5000 handles from 10 different designs using plastic injection and 3D printing. Comparison was made based on a single injection machine at a cost of 200 thousand riyals against fifty printers at a cost of 200 thousand riyals
Fixed Variable | Number of Molds | 10 |
---|---|---|
Cost of the mold (SAR) | 30000 | |
Duration to make molds (Days) | 90 | |
Cost to inject one piece (SAR) | 10 | |
Quantity produced by a mold a day | 7200 | |
Cost to print one piece (SAR) | 50 | |
Quantity produced by printing a day | 240 |
To simplify the concept, we put here a real example of one of the works that has been implemented:
The project is about designing, and manufacturing door handles to protect & prevent from the transmission of the Corona virus. The challenge in the project was the variety of the types of handles that must be matched by the designs, in addition to the urgent and rapid need for the product.
The comparison below is for making a handle using a plastic injection device, which cost 200 thousand Saudi riyals, compared to using 50 3D printers, whose value is 200 thousand Saudi riyals.
Which’s marked by the transition from the concepts of centralized manufacturing & mass manufacturing to distributed manufacturing and mass customization
Pre
First
Second
Third
Fourth
1- The possibility to make cavities, undercuts & complex shapes
2- Reducing the number of pieces
3-Manufacturing moving parts and joints without assembly
4-Combining several materials in one manufacturing step