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5. 3D Scanning and printing

Individual assignments this week are :

  • design and 3D print a small object that could not be made subtractively
  • 3D scan an object (and optionally print it)

Refer to Group assignment below - Group assignment

3D printing

Design - Fusion 360

Designed Flower by Fusion 360.

Steps:
- Open new sketch
- Write outline of 4 petals by Fit Point Spline and close sketch
- Move to Surface
- Select create then go to revolve
- Select Fit Point splines and revolve 45 degrees
- Adjust tips of petals
- Move to pattern and select Circular pattern to make 7 sets of petals
- Move to Create Form
- Create Quadball and put it on the bottom of petals

Complex and space inside, not fit to subtractive production. Thickness of each flower petal was set as 1 mm.

Flower Fusion Flower Fusion

Slice - Ultimaker Cura 4.8.0

Set Endor-3 and selected LOW Quality for printing.

Original design needs 14hr and more to print. Then, I decided to shrink it to 50% on the Cura. New estimated prinrting time is 2 hrs and 9 min.

Slicer preview

The petal’s thickness was 1mm and now calculated as 0.5mm. A diameter of the printer nozzle is 0.4mm. So I think it will work well. A simulation shows “grey part” in edge of petals.. Does it impact to printing?

3D printing - Endor -3 Pro, PLA 1.75mm

Start printing.

Flower printing

Finished.

Flower printing Flower printing

Results

Looked into the edges of petals where CURA pointed as gley. I found Petals’ edges weren’t realized as designed.

Result

Mathematically, I think that petal thickness was enough to build up but angle of the edge might be too steep.

3D Scanning - we tried to use QLONE app on iPhone / iPhone Face ID

QLONE - put objects on a mat downloaded from QLONE app and scan slowly around the object.

I brought toys for scanning.

Scan Toy

Scanned images are very clear and copied shapes, colors very well.

AR snapshot. Right - Real object, Left - Scanned image

Scan Toy

Qlone is easy to use and good app to play with. Have fun!!

iPhone Face ID - used instructor’s iPhone TrueDepth camera.

FaceID iPhone

Scanned classmate- Kamei-san

Scan Kamei-san

Scanned images

Kamei-san Kamei-san Kamei-san

Before trying to scan from the top, the apps(Capture) already start structuring images.... So no top of the head.

Kamei-san

Since images are rough, we may need post scan processes before printing if we want.

Reference

Mirror clip
Capture(apps)


Last update: June 21, 2021