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CAMPUS 3D RESOURCES

Jane Scott Library Manager Digital Services & Planning

Last updated: 12/28/2020 CONTENTS

3D PRINTING BASICS

3

5 3 D Printing &

CAMPUS RESOURCES

6 Health Sciences Digital Library and Learning Center

7 Radiology 3D and Shop

8 Simulation Center 3D PRINTING BASICS

3D Printing Technologies

Fused Deposition Modeling (FDM) Material is a 3D printing process where a filament of solid material is pushed through a heated nozzle, meltiang it in the process. The printer deposits the material on a build platform along a predetermined path, where the filament cools and solidifies to form a solid object.

Stereolithography (SLA) Researcher observing his print being An SLA printer uses mirrors, known as galvanometers created on a Taz 5 FDM Printer or galvos, with one positioned on the X-axis and another on the Y-axis. These galvos rapidly aim a beam across a vat of , selectively and solidifying a cross-section of the object inside this build area, building it up layer by layer. Most SLA printers use a solid state laser to cure parts. The disadvantage to these types of 3D printing technology using a point laser is that it can take longer to trace the cross-section of an object when compared to DLP.

Digital Light Processing (DLP) Looking at Digital Light Processing , these types Laser hardening the resin layer of the of 3D printing technology are almost the same as SLA. Library's Form 2 SLA Printer The key difference is that DLP uses a digital light projector to flash a single image of each layer all at once (or multiple flashes for larger parts). Because the projector is a digital screen, the image of each layer is composed of square pixels, resulting in a layer formed from small rectangular blocks called voxels. DLP can achieve faster print times compared to SLA. That’s because an entire layer is exposed all at once, rather than tracing the cross-sectional area with the point of a laser.Light is projected onto the resin using light-emitting diode (LED) screens or a UV light source (lamp) that is directed to the build surface by a Digital Micromirror Device (DMD).A DMD is an array of micro-mirrors that control where light is projected and generate the light- on the build surface.

Selective Laser Sintering (SLS) Creating an object with Powder Bed Fusion technology and powder is generally known as Selective Laser Sintering (SLS). As industrial expire, these types of 3D printing technology are

SOURCE: https://all3dp.com/1/types-of-3d-printers-3d-printing-technology/ becoming increasingly common and lower cost. First, a bin of polymer powder is heated to a temperature just below the polymer’s melting point. Next, a recoating blade or wiper deposits a very thin layer of the powdered material — typically 0.1 mm thick — onto a build platform.

Direct Metal Laser Sintering (DMLS) / (SLM) This is the main difference between DMLS and SLM; the former produces parts from metal alloys, while the latter form single element materials, such as titanium. Both Direct Metal Laser Sintering (DMLS) and Selective Laser Melting (SLM) produce objects in a similar to SLS. The main difference is that these types of 3D printing technology are applied to the production of metal parts. DMLS does not melt the powder but instead heats it to a point so that it can fuse together on a molecular level. SLM uses the laser to achieve a full melt of the metal powder forming a homogeneous part. This results in a part that has a single melting temperature (something not produced with an alloy).

Material Jetting Material Jetting is a 3D printing process where droplets of material are selectively deposited and cured on a build plate. Using or wax droplets that cure when exposed to light, objects are built up one layer at a time. The nature of the Material Jetting process allows for different materials to be printed in the same object. One application for this technique is to fabricate support structures from a different material to the model being produced.

Drop on Demand (DOD) DOD is a type of 3D printing technology that uses a pair of ink jets. One deposits the build materials, which is typically a wax-like material. The second is used for dissolvable support material. As with typical types of 3D printing technology, DOD printers follow a predetermined path to jet material in a point-wise deposition, creating the cross- sectional area of an object layer-by-layer. DOD printers also use a fly-cutter that skims the build area after each layer is created, ensuring Material Jetting in a perfectly flat surface before commencing the next layer. DOD printers Radiology Lab are usually used to create patterns suitable for lost-wax casting or , and other mold-making applications.

Binder Jetting Binder Jetting is a 3D printing process where a liquid bonding agent selectively binds regions of a powder bed. Binder Jetting is a similar 3D printing technology to SLS, with the requirement for an initial layer of powder on the build platform. But unlike SLS, which uses a laser to sinter powder, Binder Jetting moves a print head over the powder surface depositing binder droplets which are typically 80 microns in diameter. These droplets bind the powder particles together to produce each layer of the object. Once a layer has been printed, the powder bed is lowered and a new layer of powder is spread over the recently printed layer. This process is repeated until a complete object is formed. The object is then left in the powder to cure and gain strength. Afterwards, the object is removed from the powder bed and any unbound powder is removed using compressed air.

SOURCE: https://all3dp.com/1/types-of-3d-printers-3d-printing-technology/ 3D PRINTING & COPYRIGHT Where a digital file of a book, a scan of a book, and a physical copy of a book are usually all considered equivocal copies by Copyright law, the same cannot always be said in the world of 3D printing. Copyright may protect the design of a 3D object, the file that the printer and program use to create the object, and the final object in different ways.

Questions to Ask Yourself Before Beginning a 3D Printing Project

Are you beginning with a scan of a pre-existing object? Did you create this object and retain copyright? (Copyright owners may copy, transform and disseminate their creations) Is the object protected by copyright? Is it wholly useful or in the public domain? (Keep in mind that useful objects, or the useful components of objects with both useful and aesthetic characteristics are not protected by copyright.) Is the object protected by other intellectual property laws? (Useful objects, or the useful components of objects with both useful and aesthetic characteristics may be protected under other intellectual property laws, like law.)

Are you beginning with a design file created by someone else? Is the design file protected by copyright or other intellectual property laws? (A design file for a useful object may be protected by copyright even if the 3D printed object is not.) Is the file licensed under Creative Commons or other licensing mechanism that allows your use?

Are you intending to sell or license your 3D projects? Is it a useful object? (Useful objects, or the useful components of objects with both useful and aesthetic characteristics are not protected by copyright. )

Additional Resources for 3D Printing 3 Steps for Licensing Your 3D Printed Stuff Michael Weinberg's white paper that seeks to explain the licensing and copyright status of 3D printed items. What's the Deal with Copyright and 3D Printing? A white paper by Michael Weinberg that explores how copyright is applied to 3D objects. As 3D Printing Becomes More Accessible, Copyright Questions Arise NPR broadcast and article exploring the emerging questions of copyright in the 3D printing landscape.

SOURCE: http://guides.lib.usf.edu/c.php?g=5784&p=1838844#s-lg-box-5617798 CAMPUS RESOURCES Health Sciences Digital Library and Learning Center

The Health Sciences Digital Library and Learning Center provides basic training and equipment for exploring 3D printing technology at no cost. If you are new to the technology, this is the best place to start on campus. The Health Sciences Digital Library and Learning Center is the proud recipient of the National Network of Libraries of Medicine, South Central Chapter 2017 and 2015 Emerging Technology Award. The purpose of the award was to encourage 3D printing literacy to our campus community through access to a 3D printer, supplies, and electronic resources including the NIH 3D Print Exchange (https://3dprint.nih.gov/). This website provides 3D printed scientific and medical models, tutorials, and a learning community discussion board for troubleshooting.

Form 2 (SLA) , Cure and Wash stations The 2017 Technology Award 3D printer is a Form 2 with a Curing station and a Washing station. This printer is currently unavailable. However, the Library does have resins including Black, Clear, Dental, Durable, Flexible, Grey, Tough, and White, that may be used at no cost on other Form 2 (SLA) devices for UT Southwestern educational purposes. The Wash and Cure stations are also available for use by appointment.

Taz 5 (FDM) filament and demo availability The 2015 Technology Award 3D printer is a Taz 5. This machine has been well used and is currently most effective for small project demonstrations for career fairs like HPREP. Filament can also be shared at no cost for projects on other FDM compatible devices for academic purposes.

Contact [email protected] to schedule individualized training, inquire about resins and equipment, assist with appropriate project expectations and referrals. CAMPUS RESOURCES

Department of Radiology 3D Printer and Machine Shop

Dr. Rajiv Chopra's manages a 3D printer resource in the Department of Radiology. The Projet HD3510plus from is capable of producing parts with a resolution of 19um, and can also print moving parts. The system is an essential tool in Dr. Chopra's research program for producing complex parts for HIFU devices or experimental platforms. A Qidi 3D printer is available for PLA/ABS printing projects.

In addition to the 3D printers, the Department of Radiology has a full machine shop with manual and CNC tools, as well as a staff machinist available to support internal and external projects.

Please contact [email protected] if you have any interest in using his services or visit his lab's website - Projet HD3510plus from 3D systems http://www.utsouthwestern.edu/labs/chopra

Dr. Chopra's Lab CAMPUS RESOURCES Simulation Center

UT Southwestern’s state-of-the-art Simulation Center is one of the largest simulation centers in the United States. Occupying the entire second and third floors of the West Campus medical building, the Simulation Center replicates and creates virtual environments for training in clinical care and procedures provided in a wide variety of settings, including operating rooms, labor and delivery suites, intensive care units, and the emergency room.

Twenty standardized patient rooms are available to train health care providers, with their further enhanced by interchangeable high-fidelity manikin rooms, task training spaces, dedicated classrooms, and other labs and facilities.

In support of the Simulation Center operations, the Machine Shop has acquired 3D printers for production and support. These devices may be available for use for a specific appropriate academic and instructional objectives. Availability and appropriateness are to be determined by the Simulation Center support staff. Fees are charged for 3D printing based on staff time/consultation time and material usage (% of cost of materials used).Contact [email protected] or [email protected] or for further inquiries.

3D Printing and CAD Design 3 – Flexible, durable and corrosion-resistant. Used for prototyping or printing tools, has a high strength-to-weight ratio. (PLA) – Fast, safe and reliable. Made from renewable resources. Acrylonitrile Butadiene Styrene (ABS) Plastic – Shatter proof, withstands heats up to 85°C. Copolyester (CPE) - Chemical and temperature resistant, with dimensional stability, it’s great for functional prototypes and mechanical parts. PVA – A water soluble support material used to keep your print jobs looking smooth and even. Polycarbonate (PC) - Offers a high temperature resistance, good mechanical strength and toughness, which makes it a great choice for molds, tools, and functional prototypes. CAMPUS RESOURCES Simulation Center

Mark Two by Mark Forged

Nylon – Flexible, durable and corrosion-resistant. Used for prototyping or printing tools, has a high strength-to-weight ratio. Onyx – Onyx yields stiff, strong, and accurate parts. Already 1.4 times stronger and stiffer than ABS, Onyx can be reinforced with any continuous fiber. Onyx sets the bar for surface finish, chemical resistivity, and heat tolerance. Reinforcement Materials . Kevlar– Kevlar® possesses excellent durability, making it optimal for parts that experience repeated and sudden loading. As stiff as fiberglass and much more ductile, it’s best used for end of arm tooling. Carbon Fiber – Carbon Fiber has the highest strength to weight ratio of our reinforcing fibers. Six times stronger and eighteen times stiffer than Onyx, Carbon Fiber reinforcement is commonly used for parts that replace machined aluminum.

Liquid Crystal Precision 1.5

Liquid resins are used to print with this device. They range from Firm to Flexible. It is used primarily for dental fittings and prototyping small parts.

Big Rep Studio Can print in any material that can be spooled and extruded, such as PLA, ABS, PVA, PC and so on.

Peel 3D Scanner with Turntable Used to scan any object or material and import it into a CAD designing software. Organizational Training & Development prototype printed on the Library's Form 2

Last Updated : April 2019