Download “Design Essentials for 3D Printing”
3D printing opens up new design possibilities like hollow parts and complex organic geometries, but it’s still important to keep a few fundamentals in mind to take full advantage of 3D printing’s capabilities.
Understanding materials and processes as well as considerations like support structures and feature resolution are crucial for success. These design essentials will help you make the most out of your 3D-printed parts and accelerate your product development efforts.
In the following guide to 3D printing we focus on these topics:
- 3D printing prototypes and fully functional, end-use parts
- Designing for metal 3D printing
- Comparing additive manufacturing processes
- Material properties and selection
Click here to download Design Essentials for 3D Printing.
A higher profile for industrial-grade 3D printing over the past decade has led to notable technology developments and potential new applications. The buzz over 3D printing, or additive manufacturing, has also created a lot of speculation in the trade press about whether this technology, which has been around for more than 30 years, is poised to make a giant leap forward in capabilities.
“We are just now starting to see the fruits of these developments,” said Rob Connelly, vice president of additive manufacturing for Proto Labs, referring to a spate of recent announcements about advancements in new machines, materials, and software.
We recently interviewed three leaders from the 3D printing industry for insight into the current and future state of 3D printing:
- Rob Connelly, Vice President, Additive Manufacturing, Proto Labs
- Patrick Dunne, Vice President, Advanced Application Development, 3D Systems, which manufactures and sells 3D printers
- John Murray, President and CEO, U.S., Concept Laser, a global provider of 3D metal printing systems
Reduced cost of development as well as part production can certainly be achieved with industrial 3D printing processes, like selective laser sintering and direct metal laser sintering, but there are a few design rules you need to keep in mind.
Here is DMLS in action, as the machine sinters each layer. This process is repeated layer by layer until the build is complete.
This month’s design tip from Proto Labs discusses:
- Optimizing part design for 3D printing
- Embracing non-traditional design techniques like organic features
- Designing for manufacturability if larger quantities are needed
- Minimizing overhangs and other unfriendly features
- Avoiding “over-tolerancing” your parts
- Factoring in your product’s overall functionality in addition to cost reductions
READ FULL DESIGN TIP.
Click to watch an on-demand webinar on how to design for direct metal laser sintering (DMLS).
Direct metal laser sintering (DMLS) is not intended to replace traditional metal manufacturing like casting, metal injection molding, or machining. Rather, it’s a product development tool that opens up new design possibilities. Product designers and engineers commonly rely on metal 3D printing to manufacture complex geometries, reduce the number of components in an assembly, or even lightweight objects.
Here’s a look at how to design 4 common features found in metal 3D-printed parts.
1. Self-Supporting Angles
A self-supporting angle describes the feature’s angle relative to the build plate. The lower the angle, the less the likely it is to support itself.
Designing support angles no less than 45 degrees will ensure a quality surface finish and detail.
Each material will perform slightly different, but the general rule of thumb is to avoid designing a self-supporting feature that is less than 45 degrees. This tip will serve you well across all available materials. As you can see in the picture above, as the angle decreases, the part’s surface finish becomes rougher and eventually the part will fail if the angle is reduced too far. Continue reading
This is the final part in our series of “Designing for 3D Printing” webinars. Just as we’ve looked at stereolithography and direct metal laser sintering in previous webinar, this presentation will provide insights into how to design for selective laser sintering (SLS), a discussion on material options, and recommended applications for SLS.
The presentation will include the following:
- Comparison of SLS materials
- Design guidelines for functional prototypes and production parts
- Moldability considerations for effective development
- Open Q&A session
TITLE: Designing for 3D Printing: Selective Laser Sintering
PRESENTER: Eric Van Roekel, SLS production manager
DATE: Thursday, October 27 at 1 p.m. CDT
REGISTER: Click here to sign up
Can’t make it that day? You can still register and we’ll send you an on-demand version to watch when convenient. Also, feel free to forward this invite to your colleagues.