For the 2D cup coaster, I started by selecting an image of Conan Edogawa. I imported the image into Inkscape, then used the Trace Bitmap function to convert it into a vector graphic. I cleaned up the design, kept only the necessary outlines, and made sure the file was suitable for laser cutting by using strokes only. I exported the design as a .DXF file and opened it in LaserCAD, where I set the cutting and engraving paths before cutting Laser Modes and Parameters: Cut (outer lines):
Speed: 10.00 mm/s
Power: 70.00 %
Cut (inner engraving):
Speed: 300.00 mm/s
Power: 50.00 %
saving it as a .rld file for the laser cutter.

 For the 3D Detective Badge, I found an open-source model on MakerWorld that matched my needs. I downloaded the STL file, then opened it in Cura to prepare it for 3D printing. In Cura, I adjusted the slicing settings such as print quality, infill, and supports to ensure a clean and accurate print. After slicing, I saved the file and printed it using PLA filament on a 3D printer. Print Settings: Profile: Super Quality – 0.12 mm
Layer Height: 0.12 mm
Wall Thickness: 1.2 mm
Wall Line Count: 3
Horizontal Expansion: 0.0 mm
Infill Density: 20%
Print Time: 1h 1min
Filament Used: 5g – 1.60 m 

 (Laser Cutting & Engraving)

Machine Preparation

Laser Cutter Check – Ensure the machine is clean, the lens and mirrors are free from dust, and the cutting bed is level.

Material Placement – Secure the coaster material (e.g., wood, acrylic) flat on the laser cutter bed.

Focus Adjustment – Set the correct focal height of the laser head using the focus gauge. 

Ventilation & Safety – Turn on the exhaust fan and air assist to remove fumes, and wear safety glasses.

Fabrication Process

Load the File – Open the prepared .rld file in LaserCAD.

Check Paths – Verify that cutting and engraving paths are correctly assigned to their respective layers.

Set Laser Parameters – Apply the cutting (10 mm/s, 70% power) for outer lines and engraving (300 mm/s, 50% power) for inner details.

Test Cut – Perform a small test cut on scrap material to confirm settings.

Start Job – Begin the engraving first, then the cutting to prevent shifting of parts.

Post-Processing – Remove the finished coaster, clean off any residue or burn marks if needed.

I encountered a problem while uploading the file for the laser cutting machine, where an error appeared. I sent it to a colleague who had printed from his device before for printing, then I asked the coordinator, and she told me to change some settings in the program to solve the problem. 

my device had to choose the machines name every time
from select mode opoption 

I visited many sites during my research and now I know which shapes will require more support and which lines need to be scanned. I learned how to operate the laser cutter and the 3D printer, along with the software related to them, which will help me in the final project.