3D SCANNING AND PRINTING
GOALS FOR THE WEEK
- Test the design rules for your 3D printer(s)
- Document your work and explain what are the limits of your printer(s) (in a group or individually)
- Design and 3D print an object (small, few cm3, limited by printer time) that could not be easily made subtractively
- 3D scan an object, try to prepare it for printing (and optionally print it)
GROUP
INDIVIDUAL
Link to the group assignment: TEST
3D PRINTING WITH PRUSA
DESIGN
I wanted to make a twisted vase in grasshopper using a graph mapper to control the geometry.
- Create a base for the model: I made two concentric circles, extracted points and weaved them together to create a zigzag pattern.
- The proflies are multiplied and moved up in the Z axis.
- The profiles are scaled individually by extracting the center.
- Each of the profiles are rotated on its own axis.
- The highlighted slider controls the twist in the geometry.
![](images/week 5/script.jpg)
SLICING
I decided on working with the PRUSA, for which I used a prusa slicer.
- First, import the model in .stl or .obj format.
- Change the orientation of the model, as it has an impact on the strength of the print.
- Add supports if needed or use the default settings.
- Check if the temperature of the bed and the nozzle match with the requirement of the material.
- You can also choose to add a bed for the base of your model.
- Click on SLICE and copy it on to the SD card from the printer you are going to be using.
![](images/week 5/slicer.png)
![](images/week 5/slicer1.png)
![](images/week 5/slicer2.png)
- I used PLA as the material.
- To add a new filament, cut the end in a 45degree angle which makes it easier to insert.
![](images/week 5/material.jpeg)
![](images/week 5/materialcut.jpeg)
- On the printer, choose Print from SD on the menu, after which it will ask you to choose the filament.
- The printer then loads the filament to the nozzle and runs a test after calibrating the bed.
- Using glue or hairspray on the bed can make sure the print is stuck to the bed.
![](images/week 5/setip 1.jpeg)
![](images/week 5/setup2.jpeg)
![](images/week 5/setup3.jpeg)
THE RESULT
![](images/week 5/h1.jpeg)
![](images/week 5/h2.jpeg)
3D SCANNING WITH KINECT
Me and Ximena decided to scan each other for the assignment. We experimented with with different ways of scanning. First, we used a rotating base that a person could stand on. So either the scanner was moving or the base.
THE SCANNER
I used a scanner called REVOPOINT
![](images/week 5/scannerpic.jpeg)
THE PROCESS
-
The softwre used is called REVSCAN. The scan settings I used are:
- ACCURACY: High accuracy scan(the file would be significantly heavier)
- SCAN MODE: Body
- TEXTURE: Colourful
- Pay attention to the screen while scanning as the software tells you if you are too far or too close to the object.
- Move the scanner around the object essentially creating a dome.
- Make sure you take your time and not miss any spots.
- After the scan is done, the software lets you convert the scan to a point cloud.
- You can then export it as a.stl or .obj format and use another software to clean it up a bit.
![](images//week 5/REVOSCAN.jpg)
We did a few test runs with different settings, but it was difficult to capture the top of my head as I have dark hair. Eventually, I ended up wrapping a scarf around my head, which gave me a better result.
![](images/week 5/1.jpg)
![](images/week 5/3.jpg)
![](images/week 5/EE.jpg)
Design files download
Vase rhino file
Scan test 1
Scan test 2