1. Application and practice of
3D printer for production of clip motor car for energy education
Energy education research 　Chapter 11　 No. 1 　
Katsunori KANAHARA （TOKYO UNIVERSITY OF SCIENCE Graduate School of Science・Department of Mathematics and Science Education）
Yasufumi KAWAMURA（ TOKYO UNIVERSITY OF SCIENCE ）
Presenter ：ZIHE LI

2. 1． Introduction Clip motor： ・Simple construction
・uses common grocery manufacturing
It is widely used as a teaching material for energy conversion

3. 2. Frame generation by 3D printer
Having higher durability than styrofoam
Low age children can reduce burden during work

4. 2.1 Selection of 3D CAD Selection criteria：
Even developers and learners can use it.
Free CAD to use.

5. 2.1 Selection of 3dcad Comparative CAD 1）FreeCAD 2）AutoCAD 360
3）OpenSCAD
4）Sketchup
5）Autodesk

6. 2.1　Selection of 3dcad
Freecad is great for the purpose
Verified by 7 students in our laboratory
Everyone can create a simple 3D model for 3 hours

7. 2.2 Design of clip motor car frame
Consider the following points
①Motor rotor shaft positioning
②Ease of assembly
③High rigidity
④Printing on a commercial printer
⑤Ease of maintenance

8. 2.2 Design of clip motor car frame
Neodymium magnets
AA battery
Rear wheel
Rotor
frame
Front axle
図2 Design of clip motor car frame

9. 3. Class practice 「Toshiba Science Museum Experimental classroom」
The learning effect was verified in the experimental classroom.
「Toshiba Science Museum Experimental classroom」
「 Panasonic Center TOKYO RiSuPia Experimental classroom 」

10. 3.1 Toshiba Science Museum Experimental classroom
The following works have been completed.
Make work procedures with PowerPoint.
Make a rotor.
Assembly of clip motor cars.
Fixing the rotor.
Driving confirmation.
Post questionnaire.

11. 3.2 Toshiba Science Museum Experimental classroom
図5　 Toshiba Science Museum Experimental classroom Questionnaire results

12. 3.2 Toshiba Science Museum Experimental classroom
Free answer ：
「It has been known that a motor can be made without a motor. It was the first time to make a clip motor car, but it was nice to get it done very well.」
「I want to experiment with a 3D printer」

13. 3.3 Panasonic Center TOKYO RiSuPia Experimental classroom
図6 Panasonic Center Students' Questionnaire Results

14. 3.3 Panasonic Center TOKYO RiSuPia Experimental classroom
Free answer ：
「It was a lot of fun. I learned about the moving force of the coil. I think it is also necessary to stick to the length of the rubber.」
「It was tough, but as a result of doing my best, I was so happy to run around quickly.」

15. 3.3 Panasonic Center TOKYO RiSuPia Experimental classroom
図7 Panasonic Center Parents Questionnaire Results

16. 3.3 Panasonic Center TOKYO RiSuPia Experimental classroom
Free answer ：
「The 3D printer was not in real life as seen in the news, and at first I felt a fresh pleasure in touching the product of the 3D printer. It was also inspiring that this small car is the mechanism of the electric car itself」

17. 3.3 Panasonic Center TOKYO RiSuPia Experimental classroom
Free answer ：
「I was able to understand how the motor worked in a short time. I also wanted to have another workshop with my children.」

18. 4. Consideration
Preparation time is reduced by pre-printing teaching materials using a 3D printer.
Opportunity to do home communication.
As a continuation of the willingness to learn and communication after returning home,
We can expect larger learning effect.

19. 4. Consideration
The frame of this clip motor car is hoped to be widely used as a teaching material to deepen the knowledge of energy and environmental education.

20. Read the paper ・Expand the range of Acteve Learning.
Concrete Active Learning Plan…
⇒Independent and interactive deep learning using teaching materials.

21. Thank you for your time and attention.