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1. Create an exploded view of your design
1. Create an exploded view of your design
Explain how your design works towards easing the assembly and manufacturing process.
Explain how your design works towards easing the assembly and manufacturing process.
I decided to use interference fits for the feet rather than a dowel screw or other adhesive that would add a part. Interference fits are quick to put together and don't require drying time or time to smash rivets into place, speeding up the assembly process. For the plastic plate, I chose to ultrasonically weld it to the chair body because it's a fast, efficient process; weld times are typically under a second. Both of the joining processes to make the chair are quick and secure.
I decided to use interference fits for the feet rather than a dowel screw or other adhesive that would add a part. Interference fits are quick to put together and don't require drying time or time to smash rivets into place, speeding up the assembly process. For the plastic plate, I chose to ultrasonically weld it to the chair body because it's a fast, efficient process; weld times are typically under a second. Both of the joining processes to make the chair are quick and secure.
Also, the chair body is all made of stainless steel, reducing the number of materials needed to produce the chair. The draft angle and constant wall thickness on the chair would also reduce the stress put on the mold when removing the chair from the die cast, and the symmetric chair base and intuitive assembly process will further reduce the assembly time.
Also, the chair body is all made of stainless steel, reducing the number of materials needed to produce the chair. The draft angle and constant wall thickness on the chair would also reduce the stress put on the mold when removing the chair from the die cast, and the symmetric chair base and intuitive assembly process will further reduce the assembly time.
2. Create an assembly flow list of your device; describing what goes in, in what order, etc.
2. Create an assembly flow list of your device; describing what goes in, in what order, etc.
- Hollow chair body die casted
- Chair feet metal injection molded and interference-fitted
- Arduino, pressure sensor, vibration motor added off-the-shelf
- Plastic plate (with metal finish) vacuum formed and ultrasonic welded onto underside of chair
- Anti-scratch coating added to metal parts
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