Week 5 3D Scanning and Printing

Week Objectives:

1. Design, document and 3D print an object that could not be easily made subtractively

2. 3D scan an object

3. Group Project: Characterizing 3D Printers

Link to Group Site

Click Here for the Group Site

Designing and 3D Printing

I decided to design and 3D print a movable joystick in an enclosed housing. This could not be made subtractively because there is a sphere inside a slightly larger spere.

In Autodesk Fusion, I sketched these two faces along with an axis to revolve around.

I finished the sketch then used the revolve feature under create.

You can access my model by clicking here.

Bambu Studio

Because my node uses Bambu Lab printers, I used bambu studio to slice my model.

I selected 5% infill to save material and reduce print time because this model will have minimal stress on it. I also selected a higher quality preset which takes more time, however I let the print run overnight so time is not a big deal.

This is my joystick. The stick moves freely inside of the chamber because I added thin tree supports that break away.

3D Scanning

I choose to 3D scan one of the most useful tools in the fab lab: Calipers

I downloaded Polycam on my iphone and selected the object scan. Then, I moved my camera around many angles of the calipers and took many photos. From those photos, polycam built a 3D model which I downloaded.

I imported the STL into blender to visualize the scan. The scan is pretty accurate but the triangles are still visible because I used the free version of Polycam.

Reflection

This week felt pretty easy. The group work went by quick especially because I didn't have to design anything. My joystick was very easy to design in fusion. 3D scanning was new for me however it was very easy to learn.