Multi Jet Fusion (MJF) 3D Printing - Comparing Prints (vs SLS)
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- Опубліковано 5 сер 2024
- Learn all you need to know about mjf printed parts. In this video we’ll discuss the benefits and drawbacks of multi jet fusion (mjf) 3D printed parts, what mjf 3D prints look like and what applications they are used in. We’ll do this by showing sample 3D prints.
00:00 Overview of what we will discuss in this video on multi jet fusion
00:32 First, we’ll discuss the benefits of multi jet fusion printed parts such as the materials used, chemical resistance and tolerances.
01:20 Second, the drawbacks of mjf printed parts are considered: colour, post-processing and surface finish.
02:18 Next, we’ll look at several different mjf 3D printed parts to discuss their applications in context to the benefits and drawbacks of multi jet fusion.
05:14 Finally, SLS(selective laser sintering) and mjf parts are compared. We’ll talk about how these parts and print technologies differ and why that’s important to know before you print.
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Best channel I have finally discovered, thanks a lot for the uploads
Thanks Shao! Happy to help.
Excellent info - thanks!
As an engineer I would have liked some comparison of the strength and the actual tolerance of MJF and SLS
Exactly my thoughts. This seems to be only a surface finish/process oriented video than anything else.
One can heck out datasheets at parts manufacturers as i.materialze, weerg, shapeways.
With both technologies there is also capillary action at the edges of surfaces facing up. I never hear anyone mention this.
Wow. Great info. Thanks. I have a question about wall thickness with SLS. I see a lot online about minimum wall thicknesses but nothing about maximum. what's a recommendation? The rectangular areas of the 2 identical parts in front of you with the holes in the corners, looks like that base area is several millimeters thick. Can I design a 7-10mm floor into my parts without issues of uneven drying or warpage?
What wall thickness would you recommend for watertight parts? Thanks!
3mm+
did he said MGF instead of MJF?
Yes, systematically. I wonder if he is French. I think I can still hear a very worked-on accent.
Did you say "did he said"?
Formlabs Fuse1 SLS recycles up to 70% powder.
which is not ideal for SLS.. you can but not ideal. sls is dying to mjf so they are trying the gimmicks now
for everyone asking: MJF parts have superior strength and flexibility and more homogeneous mechanical properties compared to SLS parts
PA12 in MJF, 52 MPa tensile strenght, 15% elongation at break, vs PA12 in SLS, 48 Mpa and 20%. Those are the figures I am familiar with from my suppliers of parts. MJF being stronger and more homogeneous, thats right. Don't quite see the difference as 'superior', like 'in a totally different league.
imagine if hp couldn't just sit on their laurels relying on extortionate taxation and business fees to keep their rivals from being competitive, we might have consumer grade mjf by now.
Sinterit new sls machine can do 78% recycled powder very close to hp's claim of 80%
The great tragedy for some of these parts is that they're designed from a paradigm of the conventional manufacturing process instead of for pure functional optimization.
"Some parts of MJF machines have been made with MJF technology". This is the typical chicken and egg problem!