Computer-Aided Design
![](images/week02/1.png)
Model your final project using raster, vector, 2D, 3D, render, animate & Compress your images and videos.
Individual Assignment:
- Evaluate and select 2D and 3D software
- Demonstrate and describe processes used in modelling with 2D and 3D software
First, I will start with “My Paint” I trayed to sketch my idea with my paint it was a fun experience but I think it failed in some way x”D, I think it would be more efficient if I did use Graphics tablet but anyways this was the final result.
![](images/week02/2.png)
okay, first it doesn't look that bad.but the first problem was that I couldn't find the “ text box “ except for that, everything was great.
Now let’s talk more about the program, so I don’t think the program needs any explanations there no hidden tools or complicated methods so I recommend installing the tool and try it you will figure everything in the program for less than 15 min that’s all.
CAD
fusion 360
Now I will use fusion 360, I will try to make something related to my final project, I will try to draw a prostatic finger.
So first is to create a “sketch, I have trayed many ways until now to create the finger but I will stick with the last result.
![](images/week02/01.png)
So after I created the sketch I trayed to imagen section of the finger to draw in the sketch.
![](images/week02/02.png)
Next, after I finished the sketch I used “Revolve tool”, so what revolve tool makes, it’s Creates the revolution in one direction.
![](images/week02/03.png)
Now I will create another sketch to create the joint hole.
![](images/week02/04.png)
After finishing the sketch now I will use “Extrude” I tried to change the “Taper Angle ”
![](images/week02/05.png)
as you can see to make an extruded curve with the sketch and it worked will
![](images/week02/06.png)
![](images/week02/07.png)
Next step is to create a sketch at the bottom view and extrude to create the middle part of the finger
![](images/week02/08.png)
so to make the curve in the middle part I draw a "Spline" with some lines to complete the sketch, the last step is to extrude.
![](images/week02/008.png)
Now I will need to see inside the design so I found this useful tool “Section analysis”
![](images/week02/9.png)
![](images/week02/10.png)
Now I will create a sketch with small circles to make the joints in the inside part and cut the hole joints at the outside
![](images/week02/11.png)
Now all I have to do is to select from “Start” “from object” and chose the joint dimension and do the same at another side but with a negative value
![](images/week02/12.png)
![](images/week02/13.png)
Now we have joint we need to make the last part of the finger, So I didn’t do anything new to make the last finger joint I did repeat all the last steps that's all
first you need to “Create Components From Bodies ”.
![](images/week02/17.png)
Now after I created the last part I will use “ِِAppearance” to give the part structure of any material like I used ABS for my model.
![](images/week02/16.png)
last step is to render the model all you have to do is to select "Render" from Design
![](images/week02/18.png)
So There are alot of tools for rendering in fusion 360 but for now i will just use "Render image tool
![](images/week02/19.png)
So what i loved in fusion rendering tool is that you can render your file locally or using cloud and when i usd cloud rendering tool it has been done in less than 10 min.
And this was the final result.
![](images/week02/1.png)
So now I know that I need to draw the finger again with "Sculpt form" tool in fusion 360 to make the finger more real and I need to make the mechanical design to see how I will control the finger
So now I'm working on the finger mechanical design you will find all the updates at the final project web page
Xdesign
So because I'm a big fan with Linux operating system and one of the problem I face when I'm using Linux that I didn't found any Decent software I can use so after locking into my options from the assignment link.
I have two options first one was Xdesign is a 3D, parametric solid modeling program freshly minted by Dassault Systèmes SOLIDWORKS. It leverages the 3DEXPERIENCE Platform, a different modeling kernel than the Parasolid in SOLIDWORKS. Further differentiating the systems is that Xdesign will store its data on a database on the cloud, So I just use it from any browser to access my data.
the idea was great but I have a deadly problem that I don't have a stable internet connection so the program was lagging most of the times and it was away from perfect, so I decided to look for Another program.
freecad
so I found this program and I can use it on any platform, so I decided to give it a try I started with the freecad website Documethion it had nearly everything but I didn't found any videos so I searched on youtube for tutorials so I found video it was very helpful.
I found freecad interface was a little bit complicated and it's not easy to get used to it, but I have to give it a chance so I started with making a skitch.
because this program has a lot of Cad categories so I need to select one of these categories, to start drawing the part we need to select the "part design" workbench.
![](images/week02/20.png)
Next to select "Create body" from "Tasks"
![](images/week02/21.png)
Now to select "creat sketch"
![](images/week02/22.png)
Next for plan selection as I understand the most common plane is "XY plan"
![](images/week02/23.png)
so as I understand there are two main categories first the "Sketcher geometries" for the basic drawing tools like line and square, and "Sketcher Constraints" and I think that's all I need to create a perfect skitch.
![](images/week02/25.png)
So I decided to make a paper holder so I draw a basic shape look like what I'm going to draw using polyline tool.
![](images/week02/26.png)
so this shape is not stable I can click any point and move it so now I need to use the Constraints tool to constrain all the lines, so all the lines are constructed it will be in green like that.
![](images/week02/27.png)
now I will click cancel now I need to give this thickness so I didn't fount the extrude tool but I found a similar tool call "pad" so I used it and right the length I need.
![](images/week02/28.png)
note to rotate the object you have to press "Shift+Right click"
Now the last step I will use a tool called "Thickness" to make my design hollow, so after selecting the top face in tasks I get a list of options I can use so I will select thickness.
![](images/week02/29.png)
In the "Thickness" tool it has multiple options what Caught my attention is "Join type" option it has two options "arc" shape and "Intersection" so I selected the arc because it looks better and for the Thickness, I made it 3 mm.
![](images/week02/30.png)
so I really enjoyed drawing with freecad it's not easy as fusion of course but what I really like about it it's a free program and opensource and have most of fusion options and maybe more so I think in the near futcher I will learn more about freecad.