Forestgnome
Stainless
- Joined
- Aug 2, 2008
- Location
- Californeeeah
It looks like they've finally come up with a practical machine. Models for prototyping and manufacturing.
Studio | Desktop Metal
Studio | Desktop Metal
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20K more than the Markforged?
They don't go into the shrinkage very much. Wonder how they deal with it. In fact the whole website is almost devoid of information.
MF is 99.5k for only the printer. The DM Studio includes printer, debind station, and hybrid microwave furnace for 20k more than their printer. Printer itself is 50k20K more than the Markforged?
They don't go into the shrinkage very much. Wonder how they deal with it. In fact the whole website is almost devoid of information.
The website could use more technical details, especially relating to material properties, but we're currently under peer review by a couple science journals that I believe contains more mechanical analysis. We also gave a talk at Rapid that discussed these numbers, and I'm trying to find out if this is publicly available.They also do not discuss issues of density or material properties re: brass infiltrated steel.
to start, I swear I didn't register just for this, but saw the post and knew I could help answer I hope this is ok
MF is 99.5k for only the printer. The DM Studio includes printer, debind station, and hybrid microwave furnace for 20k more than their printer. Printer itself is 50k
Shrinkage is controlled based on material used and properties like wall thickness that is analyzed by the slicing software to scale up the part.
The website could use more technical details, especially relating to material properties, but we're currently under peer review by a couple science journals that I believe contains more mechanical analysis. We also gave a talk at Rapid that discussed these numbers, and I'm trying to find out if this is publicly available.
In general we see density of the metal at 98%, and we've seen as high as 99.8%. Material properties are are comparable to MIM, and reasonably close to wrought material (I've seen the numbers and they're good, but can't talk in too much detail yet), with the benefit that we can print with sparse infill to save weight. More information will be released at a later date. We aren't trying to say that this is a complete replacement for traditional manufacturing, but a complement to it.
I'm just getting my feet wet in this community, so hopefully I can help and contribute more on this and other 3D printing topics, but I'm glad to see people talking about this
to start, I swear I didn't register just for this, but saw the post and knew I could help answer I hope this is ok
Sure! Though I wouldn't recommend it. Silver is low temp enough you can practically direct extrude it.can you print precious metals? Gold, platinum, silver, etc?
dee
;-D
I'm engineering. 3D printing dork and wanna-be machinist. I deal with the motion system primarily.A manufacturer that has information to share, not just a sales pitch, is always welcome.
Are you in engineering, management, sales?
I've had some dealings with MarkForged, will be curious how things go with Desktop Metal.
And it's OK, we already know (and have been told) we're obsolete...
http://www.practicalmachinist.com/v...achinists-obsolete-goodbye-machinists-327747/
MF is interesting but it's strange to me they announce that they're printing in metal and never show how they're doing it? Something doesn't smell right about that to me, but I'll be civil and say the one part that wasn't sanded smooth looked pretty good. They have a very good motion system in that thing.
...this metal acts like wrought alloys, which isn't nearly as strong as cast iron
I think I just found the answer to my own question. They didn't solve it, this metal acts like wrought alloys, which isn't nearly as strong as cast iron due to issues with the micro structure (most likely grain size/distribution). This stuff would probably work well at low temps and low loads but with such a bad creep strength I would be hesitant to put to use anywhere you need serious reliability. Just a heads up to anyone thinking about dropping the money, I can't really see the value in these things.
I've handled a sample metal printed part done by the MarkForged Metal X printer, and while I didn't take a hammer to it, it's not "weak" in any sense of the word. I think you need to do a little more research on the viability of 3D metal printing, as your information is either incorrect or outdated.
FYI - SpaceX uses 3D printed (DMLS, not what MarkForged does) turbine components in their rocket engines. Spin-spin, hot-hot, work-work. Capisce?
Direct metal laser sintering - Wikipedia
Disclosure: I do some contract work for MarkForged and know some of the people there. Not a shill, they don't pay me enough for that...
Did the definition of "wrought alloys" change radically while I was asleep or something? "Wrought" means forged or rolled, which in the case of ferrous metals means substantially stronger than cast iron (think of crankshafts or bolts).
This is a molecular particle distribution issue, not a, I picked it up and it felt strong issue.....Capisce?
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