3D Printing Comparison: Multi Jet Fusion vs Selective Laser Sintering Nylon | Fictiv

Multi Jet Fusion, or MJF, and Selective Laser Sintering, or SLS, both utilize Nylon material. Here's an overview of the difference between each in terms of resulting functional properties to help you make the right choice.
MJF machines deposit a detailing agent along the exterior of a part that, after media blasting results in a less coarse surface finish compared with the SLS process. MJF parts also come off the bed grey, whereas SLS Nylon parts are white. Both can be dyed black afterwards. MJF has a slightly better resolution compared with SLS, with a layer height at for SLS.
If you’re prototyping smaller quantities under around 100 units, SLS is generally more cost effective. At higher bridge production quantities, MJF becomes more cost effective because of the machine’s modular design and faster production speed.
As for mechanical properties, MJF Nylon has a higher flexural strength than SLS Nylon. Therefore, MJF Nylon is typically considered more often for end-use parts and functional testing under higher loads.
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[@RayZXA]

I have an SLS printed part at home that is not white. SLS parts are not just white.

[@assafweiss8078]

why would you compare two different technologies with different printed geometries...??

[@fictivmade]

Good question! Although both of these technologies use Nylon as their material, due to other differences each method results in parts with different mechanical properties. Therefore, it is useful to show parts with different geometries to highlight the optimal use case for each type of 3D printing.

[@zoltar3172]

Thanks! What is your opinion about Desktop Metals Single-pass jetting?

[@erkanates4711]

Hi dear friend why are you giving wrong information sls can do 0.60 micron eos formiga example + second sls surface is not as you explained plase check formiga 110 parts. Also have you heard about formiga fdr (fine detail resolution) there is no strong part with that kinde of detail. what if we ask for white part can mjf do that? please check all this and give us correction.

[@ericohman]

I guess he's comparing the machines Fictiv use in their 3d printing service

[@lordadamfirst]

MJF can do white parts now, though (in the UK at least) barely anyone runs that setup.
There is no hard and fast comparison between the two, and whenever there is another company releases something different 😂

[@jonjon3829]

funny seems like your sls parts are printed on one of those cheap sls desktop machines, my sls parts are smoooooth.

[@boudebier]

Are you sure your parts aren't sla prints?

[@jonjon3829]

@@boudebier nope pa2200 SLS powder prints, exact same quality like MJF, I never had any such artifacts like this guy shows. It's pretty clear he got paid to do this video.

[@boudebier]

@@jonjon3829 Alright good to know! Just making sure 💪

[@zaradh114]

THANKS

[@nomusicrc]

This would have been better without the music