Week 2 - 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)

Cool/funny glasses

For this week's assignment, we will be making a mixed design glasses. Using the knowledge we acquired in week 1, we will be able to make the design on Fusion 360 and fabricate the project using the laser cutter and 3D printer.

Poster of the Ramadan series

This series is the inspiration for this week's assignment. I especially liked one character for who I will make the glasses design.

Umm Sabrine in ashagal sha2a

I am intrigued by the many ambiguous sayings used in Arabic. In this series, Umm Sabrin would use the saying ' من عينيا الإتنين'.This normally means 'yes!' But she would never execute the orders or questions and do the opposite even.

I want to combine the saying Umm Sabrine uses with the glasses design. Since it is Arabic, the idea of putting the text on top might be challenging with the dots. So lasering it in the glasses itself or engraving it above will be a possibility.

Tool Chain

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

Software: Fusion 360

In my work, I have used autocad in 2D for drawing simple designs. Since this week I am learning Fusion 360. The software also has a 'not for commercial use' option, which is very beneficial while learning the software and using it as a student.

3D printer and laser cutter

I will be using the 3D printer for the arms of the glasses. The laser cutter will manufacture the front frame of the glasses.

Materials

I will use PLA black for the 3D printing of the arms, because I like the look to be calm and simple. Also so the attention goes to the text alone. I want to avoid distraction in the design by adding bright colors.

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?

Glasses frame - 2D laser cut

Research

I started with an online search to find reference dimensions to base the drawing on. I forgot to bring the calipar, so I used an online measuring tool on my own glasses.

I am not happy with the first design or drawing, so I will start over after an extra practicing session at Fablab. The most challenging is using the constraints in a correct way and making sure all lines are defined. Since I did not apply the constraints correctly, I will start anew.

Design in Fusion 360

I started by drawing a rectangle with the referenced dimension in construction lines. This will be the outline for my glasses. After that I drew a square. I determined the dimension by choosing the distance to be 9 mm from the center construction line. So the nose bridge would be 18 mm after the mirroring.

A 3.3mm hole will be used for assembling the frame to the arms. After applying the mirror, I added a 3 point arc to create the nose bridge.

I finished the sketch and extruded the drawing, to then add the text.

After adding the text, I was not able to extrude the text itself. I used fillet to make the corners smooth. Finally I exported the file as a dxf, to be able to import it in RDworks.

Link to the dxf file

Glasses - من عينيا الإتنين (dxf)

Preparation in RDworks

I imported the dxf file in RD works. All lines have to be cut. I noticed that there were still boxes around the text, so I selected them and changed their output to be not cut. (Output = no) Later I realized I could simply select and delete them.

As a final visual touch, I wanted to add a pharaonic eye on the left glass to make the design a bit more symmetric. I went to 3axis.co and downloaded a dxf drawing of an eye.

Glasses arms - 3D print

2D drawing arms in fusion360

I drew 1 arm for the glasses in 2D. Then I used a construction line to mirror and create the second arm. After that I extruded both arms to 3 mm thickness to be the same thickness as the frame. I drew a rectangle to extrude for the assembly point to the frame.

hole for M3 screws

I drew another circle in to make the hole for the screw. Here I found out the allignment with the frame would not be perfect. I think the screw would not have enough space. So I changed the thickness to 2 mm.

Fillets on arms for sleeker look

I added a fillet to all edges to make the arms look more sleek. This will also make the design more comfortable to handle. I used plastic with a green color for the appearance.

Glasses arms in Cura Ultimaker

I uploaded the stl file in cura ultimaker to prepare it for the 3D printer. I added support around the holes and checked if the other print settings were suitable. I then sliced the design and saved the file.

Arms glasses left and right (.stl)

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 of the arms on the Prusa i3 MK2 3D printer

Steps to fabricate the arms on the 3D printer

1- Slice after adjusting the parameters. (Infill of 50%, 0.15mm layer, brim support, cooling 100%)

2- Download the file to the memory card as a G-code and insert in the 3D printer.

3- Select the file out of the menu and start the print.

4- Observe during the first layers for safety.

The print took 42 minutes and 5g of pink PLA.

Fabrication of the glasses frame on the laser machine

Steps to fabricate the front frame on the laser machine

1- Open the .plt file on the computer in RDworks. Double check the cutting parameters to then download the file to the laser machine.

2- Secure the plywood on the machine and move the nozzle to a suitable corner of the sheet. Set the origin.

3- Open the file on the machine. Make sure to check the preview. Press frame button to make sure the project will have enough space on the sheet of wood. Close the machine. Press start.

4- I added tape to avoid burning. In post processing the tape is removed and some small burns can be sanded.

5- Use M3 screw and nut to attach the arms to the front frame.

Overcoming Challenges

What kinds of challenges or problems did you face while doing the assignment, tutorials, or exercises? How did you solve them? Did you ask for help from an instructor or peer? Please provide a link to the tutorial or article that you used to solve your problem (if any)

1) Designing challenges

This week I struggled with designing in Fusion 360. Even after watching all the tutorials and practicing the projects, I felt dissatisfied with the outcome of my first glasses drawing.

I also struggled with fully defining the drawing and using the constraints.

I decided to make another design after the extra practice in the session on Saturday.

First glasses design - esthetically unpleasing

Final Project

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

Learning how to draw and design in fusion360 will help me draw customised designs for my final project. This instead of having to search for the closest usable designs online in open source libraries and adjusting my project to those dimensions and restrictions.

WOW!

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

Teamwork designing

I enjoyed the session on Saturday where Samah, Mennatullah, Menna and I had the assignment to design and fabricate a robot bookpage keeper together.

Even though we only recently met at the course and are all still learning Fusion360. We managed to create 2 simple designs (3D robot head + 2D laser cut robot body). This in a small time window. This experience made me feel more confident and excited for the rest to come in the course. It was simply a very enjoyable session.

Our robot bookpage keeper

Weekly Digest [OPTIONAL]

Tell us about any other cool things that you've made this week: in the Hands-on activity, tutorial examples, exercises, or any other cool mini-project that you tried out aside from the assignment.

Title of Media

Assignment Design Files