3d printing – fdm, polyjet and bioprinting · 3d printing – fdm, polyjet & bioprinting ......

Introductory Medical Device Prototyping

3D Printing – FDM, Polyjet & Bioprinting Prof. Steven S. Saliterman, http://saliterman.umn.edu/ Department of Biomedical Engineering, University of Minnesota

Prof. Steven S. Saliterman

Topics

Medical Device Center & Anderson Labs in ME. Printers & filaments. Slicer programs:

Cura MakerBot

Making a part: Importing SolidWorks parts. Positioning Optimizing print quality with Settings. Printing

SolidWorks tutorial examples. Polyjet printing. Biofabrication - Bioprinting

Prof. Steven S. Saliterman

Medical Devices Center 3D Printers…

Prof. Steven S. Saliterman

Anderson Labs in Mechanical Engineering…

Prof. Steven S. Saliterman

Lulzbot Taz 3D Printer Bed and Extruder Temperature

Prof. Steven S. Saliterman

Filament – ABS or PLA

Prof. Steven S. Saliterman

Printing a SolidWorks Part

Prof. Steven S. Saliterman

Save as .STL File…

Prof. Steven S. Saliterman

What is an STL File?

Standard tessellation/triangulation language is a 3D file format which uses a series of triangles to describe the outer surfaces of a 3D model.

Industry standard. There is no color, texture or additional attributes

i.e. features. You can improve the “resolution” or accuracy by

selecting “Options” and changing the settings.

Dassault Systems

Prof. Steven S. Saliterman

SolidWorks STL Settings (Options)…

• Binary files are smaller. • Deviation is expressed as

a linear dimension and refers to the maximum distance that the facet of the .stl file is permitted to be away from the original geometry.

• Angle refers to the angular deviation allowed between adjacent triangles,

Dassault Systems

Prof. Steven S. Saliterman

Resolution Settings…

Ideal Too Course Optimal File to Large

The optimal setting is going to be printer dependent, and requires some experimentation.

Dassault Systems

Prof. Steven S. Saliterman

Slicer Software Options

Anderson Labs - Lulzbot Taz Cura Software

MDC – MakerBot & Rostock Max MakerBot Software USB drive with machine code

MakerGear Simply 3D SD Card with machine code

Prof. Steven S. Saliterman

Cura Software…

Prof. Steven S. Saliterman

MakerBot Software…

Prof. Steven S. Saliterman

Run MakerBot & Open .SLT File…

Select Auto Layout or place as you wish.

Prof. Steven S. Saliterman

Scaling & Rotation…

Prof. Steven S. Saliterman

Different Parts Together…

Prof. Steven S. Saliterman

Review Specific Printer Settings with Supervisor…

Prof. Steven S. Saliterman

Infill, Support and Model Settings…

Prof. Steven S. Saliterman

Extruder & Raft Settings…

Prof. Steven S. Saliterman

Finished Part Examples (front & back)…

Prof. Steven S. Saliterman

Case…

Prof. Steven S. Saliterman

Solidworks Tutorial & Simplify 3D Software…

Prof. Steven S. Saliterman

Machine Control (Simplify 3D)…

Prof. Steven S. Saliterman

Menger or Sierpinski Sponge…

Prof. Steven S. Saliterman

Hookup Wire Holder…

Prof. Steven S. Saliterman

Snap-in Support Bar…

Prof. Steven S. Saliterman

Wire Lead Bender Tool

Prof. Steven S. Saliterman

SolidWorks Tutorials

Prof. Steven S. Saliterman

Stratasys 3D Polyjet Printer

Prof. Steven S. Saliterman

Head & Neck Anatomy…

Prof. Steven S. Saliterman

Heart – Inside and Outside…

Prof. Steven S. Saliterman

Hand & Wrist…

Prof. Steven S. Saliterman

Bioprinters

Prof. Angela Panoskaltsis-Mortari’s BMEn 5920, Special Topics in 3D Bioprinting

Prof. Steven S. Saliterman

Anatomically correct constructs from medical imaging data.

Porous structures. Co-culturing of multiple cell types. Precise patterning of cells and ECM. Controlled deliver of growth factor and genes. Potential for high-throughput fabrication. Suitable vascularization - eventually! Remember the

need for a vascular network in relationship to the diffusion length of oxygen.

Advantages of Bioprinting…

Prof. Steven S. Saliterman

Making a Nose…

Prof. Steven S. Saliterman

Summary

Medical Device Center & Anderson Labs in ME. Printers & filaments. Slicer programs:

Cura MakerBot

Making a part: Importing SolidWorks parts. Positioning Optimizing print quality with Settings. Printing

SolidWorks tutorial examples. Polyjet printing. Biofabrication - Bioprinting