This week, I worked on two main tasks: 3D printing an object that couldn't be made subtractively and using a 3D scanner to capture an object.
My idea for the 3D print was to create a lock because my friends keep walking into my room while I'm studying, and I thought this would be a useful tool.
Designing and Printing the Lock
I designed a lock mechanism that has internal sliding parts, which technically can’t be made subtractively (like with a laser cutter).
The sliding mechanism inside the lock is difficult to create with subtractive processes, which makes 3D printing a perfect solution.
However, I accidentally added support while CADing, which ended up printing as part of the final design. Next time, I’ll be more careful and use support only during the 3D printing process in the Prusa slicer.
One thing I learned is that the orientation of the print is really important to ensure a successful build.
Designs
3D Printing Process
Final 3D Printed Lock
3D Scanning with Polycam
For the second part of the assignment, I needed to 3D scan an object. I decided to scan myself using the **Polycam** app. The result didn’t turn out as expected because I was moving too much during the scan, and I ended up looking a bit deformed.
Polycam Scan Results
Reflection
This week, I learned a lot about 3D printing and how to set up prints correctly. One key takeaway was the importance of orientation when printing an object. I also realized that while designing, I need to make sure that the supports are only added during the slicing process, rather than during CAD.
The 3D scanning part was fun, though my scan turned out a bit strange due to movement. Next time, I’ll try to stay as still as possible during the scan to get a more accurate result.
Moving forward, I’d like to combine this lock design with my embedded programming skills from Week 2 to create a lock that can be controlled via Bluetooth from my phone. This would add a useful feature and allow me to experiment with wireless communication between devices.
