Week 3 - Journal

Ideation

Tell us about your assignment's idea for this week. Why do you care about this idea? What inspired you? (Please include images or links to sources of inspiration)

Final design of the pen holder

In this assignment I have to use at least two features of 3D modeling in "Fusion 360" except "Extrude" so I started to brainstorm and imagine the final outline of the design which serve the requirements of the assignment and finally I came up with this design which I will make it by using the following features:

Revolve.
Sweep.

And also I will use the following modification tools:

Shell.
Fillet.

Tool Chain

Which software/machines/materials did you use in the assignment? Why?

Software:

Fusion 360 for the design.
Ultimaker Cura for 3D printing preparation.

Machines:

PRUSA i3 MK2 3D Printer.

Material:

PLA (Polylactic acid).

Design/Preparation Process

Explain the design and/or preparation process of your assignment. How did you use the tool or software to design and/or prepare your assignment before fabrication/implementation?

Design process

Boundary sketch

Sketching:

In this step, I started to draw the sketch on the vertical level as a first step to revolve it.

Revolving:

The next step was to use the feature "Revolve" to convert the sketch that I have drawn into a 3D body.

Revolving the sketch

Shelling the body

Shelling:

After that, I used the modification tool "Shell" to remove material from a part interior and create a hollow cavity with the boundary in specified thickness (4mm).

Sketching the interior edges:

In this step wanted to divide the pen holder into 3 parts so I started to draw the sketch on the horizontal level(x,y) and the path of sweeping on the vertical level to sweep it after that.

Edges sketch

Sweeping

Sweeping:

I have used the feature "Sweep" to make the interior edges.

Fillet:

To add an aesthetic touch to the design and make it comfortable to hold I had to use the modification tool "Fillet" to make a curvature for the outer edges.

I made the fillet with a radius of 3mm.

Fillet

Final design isometric

Top view

Final design:

And finally, here is the final design with its projections (Top view & Side view).

Side view

Development/Implementation Process

Explain the development/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?

Fabrication Process

Preparation for 3D printing:

Fusion 360:

After finishing my design on Fusion 360, I saved it as *.STL files to be ready to import to Ultimaker Cura software.

Save as *.STL

Ultimaker Cura:

After saving files in the format *.STL, I imported them into Ultimaker Cura to set the parameters of the 3D printing as follows:

Profile( layer height): 0.3mm.
Infil: 20%
supports: On
Adhesion: Off

The result of slicing :

Number of layers: 150
Printing Time: 65min.
PLA weight: 15 g.

Slicing

Note:

when you save the file it is preferred to mention the following parameter in the field of "File name":

Time of printing.
Type of filament.
Color of filament.
Weight of design.
Layer height.

Saving *.gcode file

3D printing:

I copied the G-code file to the SD card of the printer and I specified the following parameters:

Nozol temperature: 215C.
Build plate temperature: 60C.

Preparation of 3D Printing

3D Printing process

Community of Learning

Did you ask for feedback? What are the ideas that others have contributed or suggested? What was someone else’s idea that you built upon? How did you help your peers? How did your peers help you?

In the EO Week session, I presented the design to the instructors-Sherif Rashwan & Esraa Rageh-and they told me that everything was fine.

Overcoming Challenges

When you got stuck, what/who did you turn to? At what point did you have to pause to research or learn more before moving on? What are some mistakes, pitfalls, or challenges that others can avoid if they were doing this assignment?

When I went to fabricate the model I have oriented it in the center of the build blate as shown above, but the FabLab specialist -Omar- told me that I have to set the orientation near the origin point to avoid the two pins in the center, So I had to reset the orientation in the slicer "Ultimaker Cura"

Build Plate's two pins

New orientation

Final Project

How can you use the skills and knowledge that you've acquired this week in your final project?

I don't know if I will use 3D printing in the final project or not but if I had to, it will be very useful for me.

WOW!

What is the coolest thing that you've learned this week? What is something that you will never forget from this week?

Finally, I printed it.

Pen holder

Assignment Design Files

Design file

STL file

G-code file

Page updated

Report abuse