CP5065-2021S1-2A04-Group1: Week 7

Week 7 {3.6.2021}

Timeline⏰

1. CADD💻

2. Activity 1 (Nametag) 👤

3. Activity 2 (Sketch constraints) ✏️

4. Activity 3 (Photo frame) 🖼

Computer-aided drafting and design (CADD)

This week we were introduced to computer-aided drafting and design or otherwise known as CADD. Computer-aided drafting and design refers to the use of software to draw and design physical components or to layout processes. To conduct CADD we made use of the Fusion 360 software Autodesk. It allowed us to be able to create a 3D model of our product taking into consideration the dimensions of the product itself.

Activity 1: Nametag

In the 1^st activity, we had to make use of Fusion 360 to create our own keyring model and familiarise ourselves with the software function. We followed the instruction given and raised our queries when we were unsure.

· First, we created a rectangle and then rounded of the edges by using the sketch Fillet function.

· We then extruded the sketch to give it width (Thickness).

· The next step is to use sketch offset and extrude to create a border for the nametag.

· The two-point circle tool and cutting is subsequently used to create a hole in the nametag where the keychain attaches.

· We then used Modify Fillet to round off the hole created on the nametag.

· Finally, the text tool is used to add our names onto the sketch and extrusion is used to raise the text off the nametag.

Below is the end product:

Done by: Jun Xiang

Done by: Li Yin

Done by: Sebastian

Done by: Shin Shing

Activity 2: Sketch Constraint

In the 2^nd activity, we were introduced to sketch constraints. Constraints can be manually applied after the sketch geometry exists to stabilize the sketch shape or position. These constraints allow the sketch to be edited with predictable results. There were several constraints that were introduced in the instructions for activity 2.

1. Horizontal/ vertical constraint used to make a line or shape horizontal/ vertical, respectively.

2. Coincident constraint to attach one shape to another in the sketch.

3. Tangent constraint to make a shape tangent to the other. We made use of this constraint to make a line tangent to 2 circles.

4. Mirror constraint to reflect the shape along the mirror line so as to make the shape symmetrical.

5. Concentric constraint to make 2 shapes share the same center.

6. Trim constraint to remove unwanted parts of the sketch.

Below is the end product: