CAD

Week 1 CAD:

Documentation for Fusion 360👀💬

When you open fusion 360, it opens a new project. To start off, a sketch design is needed so above the create tab, press “SKETCH”.

 

Since the object I have in mind is a key chain we need to sketch out the keychain there the base of the keychain is sketched out first. The base is measured out to be 25 mm to 65 mm.

 

After sketching the base of the keychain, use the “OFFSET” tool to separate the base into a bigger and smaller rectangle with a 2mm gap.

This is what the sketch looks like after using the offset tool

 

Thereafter, by using the “FILLET” tool🗡 the edges of the keychain are rounded off with a 5mm radius in the sketch. Having sharp edges on your keychain is definitely not shiok.💀

This is what the sketch will look like after using the fillet tool.

 

Next, use the ‘LINE” tool to a line approximately at the ¼ point of the inner rectangle.

Right click the line and choose the “ NORMAL CONSTRUCTION” option.

After that, use the “SKETCH DIMENSION” tool to and input the dimension value of 7mm.

 

 

 

This is what the sketch will look like after defining a 7mm distance

We have to make the keyhole for the keychain otherwise it wouldn’t be called a keychain hence, to start, we first choose the “POINT” tool under the create tab

 

Set the point on the line that was previously sketched using the “CREATE DIMENSION” tool and we can make the keyhole via the “CENTER DIAMETER CIRCLE” tool.

 

This is what the sketch will look like after the keyhole is sketched out.

 

 

 

Now for the even more exciting part! We get to personalise the keychain by putting our name on it. To do so,  select the “TEXT” tool under the create  tab.

 

Since my name is Jerome, I will put in my name and try to centre it in the middle of the keychain. And we’re done with the sketch and can go ahead to press the “FINISH SKETCH” button

 

 

 

After finishing the sketch, it is time to make this 2D sketch into a 3D sketch! We start off by clicking the “EXTRUDE” button and selecting the inner section of the keychain.

 

After extruding the sketch transforms from a 2D sketch to a 3D sketch. Time to add the details!

 

 

 

Under the document tab we can hide the 3D sketch and continue to work on the 2D sketch by pressing the “eye” icon beside the “bodies” tab. Now, to add in the details, we also need to extrude the outer area of the key chain and the name. Set the offset to 3mm and distance to 1.5mm and the details will be added to your 3D sketch.

 

Finally, this is what your keychain will look like after hiding the sketches.😆😲

Reflection:

For this lesson it was recap for Fusion 360 and served as a reminder💭 for my team about teamwork👬👫 and communication🙆 within the team. It also served as reminder to me about documentation and that the importance of documenting as I do my work for CPDD.

During this lesson we had to make a 3D drawing of a keychain on Fusion 360 as a refresher💭.

This task was important because if I did not do this refresher I would not have remembered how to use Fusion 360💢.

I used to think that 3D drawing on Fusion 360 was complicated and difficult😡 but, after the refresher it had changed my views about 3D drawing on Fusion 360 as a whole😇. Now I think that I am able to confidently take on tasks that require 3D drawing on Fusion 360💪. So next, when a task that requires 3D drawing comes up, I will take on the task.🙋

Week 2(CAD):

We learnt about laser cutting and how to turn 3D designs using parametric drawing into real life objects!😆 So, we were tasked to make a handphone stand for this week and the best design would get their design laser cut out.

The design I went with is simple and yet interesting. A stickman sitting down is the design I went with for the handphone stand😂.

So, first we need to open up fusion 360 and use the "CREATE SKETCH" tool and select a plane to sketch on

Next we need to set the dimensions by going under the "MODIFY" tab and select "CHANGE PARAMETERS" and press the + sign that is beside the "user parameters" and set the parameters that you want. I have set 4 parameters with is body-100mm. leg-45mm, arm-35mm, thickness-5mm

Now, we can start the parametric drawing and we start by selecting the "LINE" tool

Start off the sketch by drawing a line vertically and that will be the "body". The length does not matter as everything can be adjusted using the parameters set previously.

Since we are using parametric drawing we can just drawing the lines without worrying about the dimensions for now so, adding the "arm" to the "body".

After adding the "arm" we can add the "leg" but it must be at an angle for 2 reasons, first the objective is to have the "stickman" handphone stand to sit down and second the legs are the main platform for the handphone to sit on.

After finishing the main "body" we need the "head". So, select the "CENTER DIAMETER CIRCLE" and set the diameter of the circle to 40mm

After finishing the sketch we can readjust the dimensions to our liking add some details like a mouth👄 and eye👀, once satisfied, click on the finish sketch button.

Finally, its time to turn the 2D sketch to a 3D drawing! Select the "EXTRUDE" tool and extrude the whole sketch except the mouth and eye by 50mm.

The final product will look like this😁😍

Reflection;

For this lesson I learnt about parametric drawing and how it makes 3D drawing much more convenient.😄 By using parametric drawing, we can adjust the thickness of the 3D drawing as a whole instead of adjusting the thickness of each component individually.
 I used to think that parametric drawing was a hassle and very annoying😿 but, after actually using it, now I think that in the long run it makes everything more convenient and efficient😺 because I can make adjustments very quickly. So next I will try to always implement parametric drawing wherever possible.