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CAD week files and report

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# 3. CAD Design
**Goals**
This week we are focused on exploring different design tools including the following:
I had used Fusion 360 and Coral draw in the past and so decide to explore some more tools.
In particular
Get through basic tutorials and some simple designs using the following:
2D Raster - GIMP
2D Vector - Cuttle
3D CAD - Free CAD
Evaluate and select 2D and 3D software
Demonstrate and describe processes used in modelling with 2D and 3D software
Have you answered these questions?
Modelled experimental objects/part of a possible project in 2D and 3D software
Shown how you did it with words/images/screenshots
Included your original design files
To design the same part of my final project using Fusion and FreeCAD and compare the experiences.
**Accomplishments**
Cuttle: Got basic understanding and created a simple Hexagon design. Cuttle felt easy to use
and will be a go to for me.
GIMP: Went through basic tutorial and logo design. I am very comfortable with JPG manipulation. When
I got into graphic design the process here did not feel intuitive to me. I see the power this software
and I think I would have to invest a lot more time in learning the system to be able to use it well.
FreeCAD: I liked this software a lot. It was easy for me to use for a simple part design
Comparison Fusion 360 vs. FreeCAD:
I found the high level steps to be very similar. The basic operation were simple to follow. The FreeCAD
process is a little more "choppy" since you move between different workbenches compared with the more
integrated Fusion360 experience. I found this "Choppy" approach and Workbench very easy to follow!
It felt easer to me then Fusion timeline.
For basic part design I would be comfortable with both and as non professional I very much appriciated the
FreeCad cost!
## Cuttle
......@@ -169,11 +185,129 @@ and we have the final bracket done!
to navigate vs. the timeline in fusion 360. I am going to try and make the base plate for
my Vegtable Washing Machine in both and see how the process compares!
## Here we go....head to head...... Fusion360 vs. FreeCad
**Free CAD**
The total dimension for the VWM is 35 cm wide, 45 cm deep, and 35 cm high
![layout](../images/ImagW2/GraphicApps/31vwmlayout.jpg)
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![layout](../images/ImagW2/GraphicApps/31vwmlayout.jpg)
**Fusion360**
First I set up some user parameters I will use in sizing the spinning plate and it base
![User Parameters](../images/ImagW2/GraphicApps/40platebase1.jpg)
Now I made a round leg for the plate to sit on
![Leg sketch](../images/ImagW2/GraphicApps/40platebase2.jpg)
To create the shape of the base I will create a new sketch on the top of the base leg. I then
create a circle and replicate it using the circular pattern tool followed but a cut.
![Pattern](../images/ImagW2/GraphicApps/40platebase3.jpg)
![Cut](../images/ImagW2/GraphicApps/40platebase4.jpg)
I then sketched on top again and created a circle to create the plate itself
![Plate](../images/ImagW2/GraphicApps/40platebase5.jpg)
Here I made a mistake as I did not select the whole plate and where the handy timeline
tool come into play
![Plate](../images/ImagW2/GraphicApps/40platebase6correction.jpg)
And we are back on track. I wanted to create a downward facing lip in order to provide some water
protection for the spinning mechanism during the dry cycle.
To do this I am going to draw a sketch of the lip and have it rotate around the plate center axis
Start with sketch
![Plate lip](../images/ImagW2/GraphicApps/40platebase7lip.jpg)
Then used the revolve to create the lip and set it to join the plate base.
![Plate lip](../images/ImagW2/GraphicApps/40platebase8revolve.jpg)
and there you go a first cut at the base plate
![Plate](../images/ImagW2/GraphicApps/40platebase9.jpg)
Now let do that again in FreeCad
**Free CAD**
I will follow the same overall process, starting with defining the user parameters
![User Para](../images/ImagW2/GraphicApps/50Platebase1userpara.jpg)
You need to remember to name the cell with the number itself in the top right
![User Para](../images/ImagW2/GraphicApps/50Platebase1userpara2.jpg)
Then you right click on the number and set the unites to mm
Finally when setting the variable you need to type the spreadsheet and then variable name
![User Para](../images/ImagW2/GraphicApps/50Platebase1userpara3.jpg)
I then added a circle sketch and used Pad to create the leg
![Leg](../images/ImagW2/GraphicApps/50Platebase2sketch.jpg)
![Leg pattern](../images/ImagW2/GraphicApps/50Platebase2pad.jpg)
Then I added a pocket all the way through and used the polar pattern feature to
repeat around the leg.
![Leg pattern](../images/ImagW2/GraphicApps/50Platebase2cut.jpg)
I found the tutorial very helpful in creating patterns
[Pattern video](https://youtu.be/Z2eXF4ITBeM)
Now it is time to create the plate itself. Since we are building a sketch on top
of another shape we need to use the extrude command vs. pad.
![plate](../images/ImagW2/GraphicApps/50Platebase3.jpg)
Now we need to create the lip to finish this part.
I started off by creating a sketch on the XZ axis to create the profile of the lop
![lip](../images/ImagW2/GraphicApps/50Platebase4.jpg)
And using the revolve command we got the lip to go around finishing the plate design
![Plate](../images/ImagW2/GraphicApps/50Platebase5.jpg)
**Conclusion** I found the basic part creation that both FreeCad and Fusion did a good job.
Knowing fusion a little bit helped me understand the concepts and it was just matching the right
commands.
I did not try any of the more advanced features but for basic features I think FreeCAD is a good
solution for the price!!
Here are the files:
[Fusion360 files](../projects/Week2CAD/3DFiles/F360BasePlate.zip)
[FreeCAD files](../projects/Week2CAD/3DFiles/FreecadPlate.zip)
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