1. Background
1.1. Principle
1.1.1. the plastic moves into the air and cools down, it hardens, allowing the user to draw 3D shapes in the air.
1.2. inventor
1.2.1. WobbleWorks
1.2.1.1. Peter Dilwort
1.2.1.2. Maxwell Bogue
1.2.1.3. Daniel Cowen
2. Theory
2.1. It utilizes plastic thread made of either acrylonitrile butadiene styrene ("ABS"), polylactic acid ("PLA"), or “FLEXY”, thermal polyurethane (“TPU”) that is melted and then cooled through a patented process while moving through the pen, which can then be used to make 3D objects by hand.
3. Application
3.1. education
3.2. design
3.3. entertainment
4. Future development
4.1. 3Doodler 2.0
4.1.1. swaps the plastic casing for a trimmer aluminum form-factor
4.1.2. Its weight drops to 50g.
4.1.3. It runs longer than the previous version with the promise of more precise plastic ink extrus.
5. limitations
5.1. dangerous
5.1.1. The model is very hot while being created, people can easily get hurt.
5.2. pollution
5.2.1. The material it uses has bad influence on the environment.
5.3. high cost
5.3.1. The cost of a 3D printer pen is very high, so it's not very practical.
6. comments
6.1. 3D PRINT.COM
6.1.1. It is an incredible tool for artists, makers, and even designers.
6.2. Engadget
6.2.1. simple and ingenuous.
6.3. Techcrunch
6.3.1. It’s a fun toy and actually quite useful for very simple prototyping of plastic objects.