CADD using Fusion360

Keyring

Week 1 - 19 October 2021

For week 1's lesson, we were tasked to recreate a keyring done last semester. Since I've not touched it for a couple months, I made use of a tutorial of how to design a keyring in order to refresh myself on the skills.

Firstly I started of with a rectangle which was 65mm by 25mm.

Secondly, I used the offset function to create a border around the rectangle which was 2mm wide. I also used the fillet function to trim the 4 edges by 5mm.

Thirdly, I added a line 7mm from the left side and created a middle point on the line. It was then used to create a circle/hole with a diameter if 5mm. I also added a design which was a svg file and inserted it into the sketch.

Next, I used the extrude feature to make the design 3 dimensional by extending the base by 3mm 

Lastly, I used the extrude function to remove 1.5mm from 1 side of the base without touching the border and after filleting the hole, my keyring was completed.

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At the end of lesson, I managed to refresh my memory on the basic features that I learnt the previous semester but I realised that I'm still unfamiliar with many other features which only means that I require more practice and I still have a long way to go in order to be proficient in fusion360.

Handphone Stand

Week 2 - 28 October 2021

For this week, we were supposed to design a handphone stand using parametric design and it was going to be laser cut. 

For my design, I decided that the handphone stand was going to be made from 3 different pieces, the base and the stands which holds up the phone. The 2 stands will be inserted into the base vertically through the 2 rectangular holes.

Parameters:

For the parameters, I selected 100mm for the diameter of the base, and 20mm x 10mm for the holes in the base. However, the dimensions for the width of the stand is 9.99mm instead of 10mm to account for kerf.

Base:

I started off with a centre diameter circle with a diameter of 100mm by typing diameter.

Moving on, I used the centre rectangle function to insert 2 slots in the base measuring 20mm x 10mm.

Stand:

Now onto the stand, I created a rectangle which was 100mm x 20mm by typing stand_H and stand_W.

Next, I drew the diagonal part of the stand where the phone rests on using the line function measuring 80mm by 5mm.

Since the phone still needs to sit on something, I used the line tool to create a semi-circle which was 5mm thick.

I then duplicated the previous sketch since 2 stands were required to hold up the phone.

In order to neaten up the design, I used the trim tool to cut off the unnecessary lines and filleted the corner by 10mm.

I then proceeded to extrude the sketches by 10mm to make the design 3D.

Finally, I assembled all the parts to get the final design of the handphone stand by using the move function.

Conclusion:

From this week's activity, I understood more about parametric designs and beneficial it is especially when you want to change a dimension without redoing the whole sketch. I also learnt that the scenario can affect how you design your handphone stand. Since it was to be laser cut, I have to ensure each piece can be cut from a sheet of material. 

I used to think that manually inserting each dimension into the parametric tool was tedious and a waste of time, but now I'm starting to realise that it is actually more useful that I thought as it allowed me to change the dimensions of my design so conveniently. This realisation will help me make good use of this function in the future when I create any other designs using Fusion 360.