![Inventions | Free Full-Text | Development of a Multicolor 3D Printer Using a Novel Filament Shifting Mechanism Inventions | Free Full-Text | Development of a Multicolor 3D Printer Using a Novel Filament Shifting Mechanism](https://www.mdpi.com/inventions/inventions-07-00034/article_deploy/html/images/inventions-07-00034-g001.png)
Inventions | Free Full-Text | Development of a Multicolor 3D Printer Using a Novel Filament Shifting Mechanism
![Polymers | Free Full-Text | FDM-Based 3D Printing of Polymer and Associated Composite: A Review on Mechanical Properties, Defects and Treatments Polymers | Free Full-Text | FDM-Based 3D Printing of Polymer and Associated Composite: A Review on Mechanical Properties, Defects and Treatments](https://pub.mdpi-res.com/polymers/polymers-12-01529/article_deploy/html/images/polymers-12-01529-g001.png?1594981373)
Polymers | Free Full-Text | FDM-Based 3D Printing of Polymer and Associated Composite: A Review on Mechanical Properties, Defects and Treatments
![Micromachines | Free Full-Text | The Use of a Water Soluble Flexible Substrate to Embed Electronics in Additively Manufactured Objects: From Tattoo to Water Transfer Printed Electronics Micromachines | Free Full-Text | The Use of a Water Soluble Flexible Substrate to Embed Electronics in Additively Manufactured Objects: From Tattoo to Water Transfer Printed Electronics](https://www.mdpi.com/micromachines/micromachines-09-00474/article_deploy/html/images/micromachines-09-00474-g002.png)