The FRESH Printing Process

By printing into a hydrogel support bath, the effects of gravity are negated and intricate models can be printed without any supporting structures.

GIF of the FRESH printing process, demonstrating its ability to produce complex 3D models without supporting structures.

GIF of the FRESH printing process, demonstrating its ability to produce complex 3D models without supporting structures. Source: Adam Feinberg group.

Aorta Model Timelapse

A saccular aortic aneurysm model was downloaded from the NIH 3D print exchange, trimmed in a mesh editor, and scaled down to fit in a 3in x 3in x 2in printing chamber. The total print duration was just under 18 hours.

Timelapse video of the aorta model print

Timelapse of aorta model printing process.

Printed aorta model in the process of being released from the support hydrogel.

Printed aorta model in the process of being released from the support hydrogel. The print bed on the 3D printer can be heated to melt the gelatin hydrogel support, releasing the printed model.

3D printed aorta model

The printed aorta model after removal from the melted gelatin and placement in a calcium chloride solution.