Week 2 assignment was to fabricate cool glasses of my choice. I choose a cool design named "Thug Life Glasses" as you can see in the image.
Output:
1) Glasses Face | Laser Cutting
2) Glasses Arms | 3D Printing
AI Image Showing a Mix of The 2 Items
Software:
1) RD Works V8 | For Laser Cutting
2) Ulti Maker Cura | For 3d Printing
3) Fusion 360 | For 2d and 3d Design
Machines:
1) Laser Cutter
Model (El Malky ML149 CO2 Laser Cutter)
2) 3d Printer
Model (PRUSA i3 MK2 3D Printer)
Materials:
1) PLA Filment (3d)
1) Plywood (Laser Cutting)
The answer to The "Why" is because this is these machines and materials are what is available for us so far in the Maker Diploma scope.
1.1 Designing the Glasses Front Face
I did the design myself on Fusion 360 software.
Created a 2D Sketch of the front face of the glasses in Fusion 360 consisting of a singular part.
I made all the sketch fully defined as shown.
I got the dimensions from a reference, and I did some customizations.
I made some measurements on my own glasses and used measuring tape.
Created two holes in the front face: one on the right rim and one on the left rim to fit a M3 screws, for the purpose of attachment with the arms later.
I did half the design then used "Mirror" function to complete it.
I made 3 mm extrusion and exported my singular part in *.DXF format to prepare for laser cutting.
2d Scetch of Glasses Face
After Extrusion
1.2 Designing the Glasses Arms
I created a 3D model of the side arms of the glasses in Fusion 360 consisting of a singular part each.
I used fillet function to make the arms smooth not rigid
I created an L-Shaped extension to the arms (at the front face end), containing a hole for the purpose of attachment with the front face using M3 screws.
The model is customized using the appearance features (PLA material and Black color)
I exported my singular parts in *.STL format and prepared it for cure as we will see in the next section.
2d Sketch
I did the following step.
Prepared the file and made sure dimensions are correct.
Made mirror through the Cura software.
Sliced the design and made sure it meets assignment requirements (doesn't exceed the time or weight limit (30 grams or up to 90 minutes).
Loaded the filament in my chosen color (Black).
Heated the printer.
Inserted the SD card and selected the desired file.
Started the machine to initiate the printing process.
File info:
Weight: 9 gm of PLA
Time: 52 Mins
Original Exported File
opened the file on the FabLab computer to ensure all parameters were correctly set.
Powered on the machine.
Adjusted the nozzle's focus and tested it using the pulse button.
Set the origin point for cutting using the origin button.
Transferred the file from the computer to the machine.
Started the machine to initiate the cutting process.
Preparing the dxf file on RD Works
After this I moved to assembly part to link glasses face and arms with screws and nuts.
Mission Almost Succesful 😀
Trial 1 above (Joint Failure)
Trial 2: SUCCESS!
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The lab specialist suggested that I mirror glasses arms through Cura not Fusion 360 for a faster process. It worked.
Also I reduced the depth of the arm glasses to be more compatible with the face thikness.
3D Printing
The L-Shape of the arm glasses was so small in size so there was no enough material around the hole made for the screw so it broke once I tried to put the screw in it.
You can see my sad face in the image.
Solution: Designing a new arm with more area in the L shape to avoid this incident.
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I learned how to make mixed design of 3d printed and laser cutted parts.
This will help me in my final project.
1) Improvising is important in design. When I couldn't find measurements I used tape to measure my own glasses and moved on.
2) I will never know potential errors unless I try. No time is wasted in practice.
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