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6. 3D Scanning and printing

This week I worked on 3D design , 3D printing and 3D Scanning.

Task: 3D Scanning and Printing

Group assignment:

  • Test the design rules for your printer(s) Document your work and explain what are the limits of your printer(s) (in a group or individually)

For the Group Work please check the Group Page for more details.

Individual assignment:

  • 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 assignment

Temperature is the key a factor for 3D printing. For the Group assignment I’ll test printing with different temperatures to find the best temperature for 3D printing.

  • I have downloaded the XYZ 20mm Calibration Cube from

  • For printing XYZ 20mm Calibration Cube I’ll use my Formbot T-Rex 2 3D Printer with 400x400x470mm Build Size

  • For better bed adhesion I used blue tape

  • For 3D printing slicing software I used Simplify3D which has more control feature for this 3D printer.

  • For the filament I used PLA+ which is more stronger than normal PLA filament.

  • I have uploaded the STL file to the Simplify3D software I print it with different temperature settings.

  • Test #1: temperature 220 °C

  • Test #2: temperature 210 °C

  • Test #3: temperature 200 °C

  • Test #4: temperature 190 °C

The below table shows the comparison between the tests:

# Temp. Print Quality X Y Z
1 220°C Bad 20.3mm 20.2mm 20.05mm
2 210°C Bad 20.35mm 20.25mm 20.15mm
3 200°C Good 20.05mm 20.0mm 20.0mm
4 190°C Best 20.3mm 20.3mm 20.15mm

Overall for the most accurate print 200°C is the best temperature, but if you want the best print quality then go with 190°C.

3D Design

In 3D design I worked on designing a Whistle using Autodesk Fusion 360. I chose whistle because it has moving ball in it and can’t not be made subtractively.

for this design I follow the tutorial form 3D Printing Whistle

  • Draw the 2D profile of the whistle using sketch

  • Extrude the sketch to 10mm

  • select tow faces and create 2mm shell
  • Cut the window
  • Create sphere and move it on the inner face of the whistle
  • Move the sphere down with 0.1mm
  • use the fillet for the edges and corners. -Mirror the bottom part and this will completed whistle model -finally Export to STL

3D Printing

for 3D Printing I used Ultimaker Cura Software and Ultimaker 3 Extended 3D printer.

  • Open Ultimaker Cura Software and import the STL file.
  • Change the orientation and make sure that the ball is in the lower layer

  • Change the setting of the printing.

  • Click in Slice and Preview to check the print

  • Save the file to External Drive
  • Now insert the External Drive to the printer and start printing
  • Check the first layer of the print if not sticking very well, stop the print and calibrate the bed level

  • In 3D printer Go to System > Build plate > Manual leveling
  • Use A4 paper or business card to check the level and follow the instructions in the screen.

  • After bed leveling start the printing again

  • After print completed check the print.

  • Then use the screw driver to brake the ball

  • After testing the whistle, The ball inside the whistle is moving, but there is no whistle sound. I thing because whistle design issue.

3D Scanning

For 3D scanning I used 3D scanner app in Samsung Galaxy Note 10+. This phone has a built in 3D scanner Sensor using depthVision camera.

  1. Place the object in base. I used fishing road to hold the object standing.

  2. Open 3D scanner app in the phone.

  3. Turn the phone around the object

  4. Save and Share the file with WindowsPC

  5. Open (*.gltf) file with Window 3D Viewer Application

  6. Save the file as (*.glb) file

  7. Upload the file to your SketchFab account.

3d Files

Last update: October 10, 2021