How to design for mjf and sla 3d printing with protolabs application engineer joe cretella
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How you can design for MJF and SLA 3D printing with Protolabs Software Engineer Joe Cretella

There’s now lower than every week to go earlier than we shut submissions to the 2019 3D Printing Trade Awards Trophy Design Problem in collaboration with Protolabs. This yr, we designers can stretch their imaginations by designing a two-part object to be made utilizing each Multi Jet Fusion (MFJ) and stereolithography (SLA) 3D printing processes.

For these of you who’re nonetheless placing the ending touches to your entries, we requested Joe Cretella, an Software Engineer at Protolabs in North Carolina, for some recommendations on how one can design for MJF and SLA applied sciences.

The ultimate deadline for entries is Might 1, 2019. Seeking to submit your design? Use the tag #3DPIAwards on Twitter, and put up your work right here. The winner can be chosen earlier than the official awards presentation on June 6, 2019 and, along with their design being created, will earn themselves an Ultimaker three 3D printer. We want all individuals the perfect of luck!

2019 3D Printing Trade Awards Trophy Design Problem graphic

Dependable 3D printing on an industrial scale

The Protolabs facility in Raleigh, North Carolina, spans roughly 77,000 sq. ft and is chargeable for dealing with all 3D printing requests in North America. For this service, the corporate has over one-hundred 3D printign methods, providing Polyjet, Selective Laser Sintering (SLS), Direct Metallic Laser Sintering (DMLS) and naturally SLA and MJF. Round half of those machines use SLA know-how, which is supplied by 3D Methods on the Viper 6000 and 8000 collection machines. There are round seven HP MJF machines on the facility, and these run 24/7.  “We’ve obtained numerous capability inside that know-how,” feedback Cretella, ” And we’re capable of flip builds round in a short time.”

As well as the sheer scale of 3D printing capabilities at Protolabs, one distinctive side of the corporate is that it develops its personal construct parameters for the machines to realize the very best outcomes. Specifically, Cretella says, “We’re actually capable of precisely management the stereolithography course of, and obtain extremely superb element inside components. The outcomes we get are very constant, and we’re capable of attain very tight tolerances inside that know-how.”

As a more moderen know-how, Protolabs’ particular parameters for MJF are nonetheless in growth. Nevertheless, its similarities with SLS has enabled the crew to leverage their current capabilities and data to construct MJF components very nicely.  “At this level, we’re nonetheless utilizing the usual parameters,” Cretella provides, “Leveraging numerous the data we’ve gained from SLS and the way we orient components, how we nest components inside a construct, issues like that, that’s how we’re proving that course of.”

3D Systems 3D printers in Protolabs North Carolina Facility. Photo via Protolabs3D Methods 3D printers in Protolabs North Carolina Facility. Picture by way of Protolabs

SLA design ideas

With 3D printers at residence, the vast majority of designers can be acquainted with the design guidelines of FDM/FFF applied sciences – 45° diploma overhangs, the dimensions of options, orientation and so forth. Broadly talking, when shifting to design for SLA, the rules are very related. “You’ve got a platform and the half goes to be anchored to that platform [in some way]” Cretella explains. On this respect, concerns surrounding help constructions nonetheless apply, i.e. superb options of your object ought to keep away from help areas, and direct contact with the construct platform.

The principle distinction with SLA is that it is possible for you to to realize a lot better element that in FFF prints. “When SLA, I take into consideration finer function element, tighter tolerances, prints which can be very nice cosmetically, components which can be going for use for match testing, a bit of little bit of performance testing – with the ability to produce actually intricate designs.”

The 2018 3D Printing Industry Awards trophy made by ProtoLabs.Final yr’s 2018 3D Printing Trade Awards trophy made by ProtoLabs.

MJF design ideas

Contrasting SLA and FFF, MJF doesn’t require the addition of help materials, and so in some methods design for this know-how is far more versatile.

To profit from MJF capabilities nevertheless, Cretella says you’re “extra industrial use case functions” comparable to gear housings or instruments, “Elements which can be going to see actual use – they’re going for use in harsh environments, outside, issues like that.” Usually, compared to SLA and FDM/FFF components, Cretella considers MJF parts to be “sturdy, bigger, chunkier, and capable of take stress.”

“It is vitally good to have the ability to construct complicated components inside MJF, due to that lack of help,” Cretella provides, “however you do have to bear in mind how we’re going to take away the powder.”

“With channels or tougher to achieve areas, you simply wish to be sure that we’ve got a of line of sight, so we’re capable of get compressed air or a instrument down in there to take away a few of that powder.”

MJF 3D printing in progress. Photo via ProtolabsMJF 3D printing in progress. Picture by way of Protolabs

Combining MJF and SLA in a single object

As requested within the design tips, the 2019 3D Printing Trade Award Trophy should mix components made utilizing each MJF and SLA know-how.

“With 3D printing, there’s a chance to mix these these parts in a very distinctive approach,” say Cretella. Some solutions embrace becoming components along with pins, via press becoming, and even interlocking the components.

Submit your designs for the 2019 3D Printing Trade Awards Trophy Design Problem now. Entries shut on Might 1, 2019, and are open to all talents.

Vote now in 2019 3D Printing Trade Awards. For extra info on the most recent traits in additive manufacturing subscribe to the 3D Printing Trade publication and comply with us Fb and Twitter.

Featured picture exhibits the 2019 3D Printing Trade Awards Trophy Design Problem graphic

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