Markforged Metal Printer- Thoughts/Information?
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    Default Markforged Metal Printer- Thoughts/Information?

    I see that Markforged now has a metal printer available using a plastic binder in the powder and a post-build sinter process. They are saying "99.7% dense" final products, and roughly 0.002" min layer heights, though I would think the washing/baking of the binder would leave parts very porous. They talk about A2 and Inconel-625 as available material, which seems pretty high end.

    I am asking for further information, but does anyone have any experience or feedback with Markforged metal printing? They don't seem to specify exact system price, but their 'ROI' tool hints at a sub $250k system price.

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    The parts shrink when sintered, does that give you a clue as to how they achieve the density?

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    Shrinkage is an issue across any additive manufacturing application.

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    Quote Originally Posted by Dylad View Post
    Shrinkage is an issue across any additive manufacturing application.
    Investigate sintering, there was a similar, but probably smaller, shrinkage feature with pressed powder sintered manufacturing.

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    The printer is about $100K, but you also need the sintering oven and debinder, so it gets close to $200K. They claim to handle the shrinkage by printing a sample part, then 3D digitizing the result, then making corrections on the second one. They have a competitor, Desktop Metal, a little cheaper. The samples depicted in their respective websites make it look like MarkForged has better resolution and motion control, but MarkForged also has very slick marketing so who knows. For a short time, MarkForged was running a promo, buy a meta printer get a carbon printer free. So maybe the uptake isn't quite meeting their expectations? Their carbon printer looks pretty cool though.

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    I will say that I've been extremely impressed with Markforged's plastic 3D printers. My company bought one and it was so good we bought another and are considering a third. I haven't tried their metal 3d printer but as a company they make one great product and I wouldn't be surprised if their metal printer was good as well.

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    Quote Originally Posted by Dylad View Post
    I see that Markforged now has a metal printer available using a plastic binder in the powder and a post-build sinter process. They are saying "99.7% dense" final products, and roughly 0.002" min layer heights, though I would think the washing/baking of the binder would leave parts very porous. They talk about A2 and Inconel-625 as available material, which seems pretty high end.

    I am asking for further information, but does anyone have any experience or feedback with Markforged metal printing? They don't seem to specify exact system price, but their 'ROI' tool hints at a sub $250k system price.
    I don't have any experience with the actual use of the thing, but their ROI and price comparison calculations are absolute and utter BS. They do things like say "reduced lead time compared to a machined part by 3 weeks" and their reasoning for this is "machine shop was backed up with 3 weeks worth of work" which makes the hilarious presumption that nobody is ever using their own tool so it's always available for use immediately...

    Then they say things like "cost of machined part $315.06, cost of Markforged part $11.45" despite it taking TWO DAYS for the $100k printer and $100k sintering oven to make it. So while they're clearly including programming time, setup time, machining time, wages, machine payments, rent, consumables, material etc for the machined part, they're simultaneously ignoring everything except consumables in their price calculations for the printed part. That dishonesty alone is massively off-putting in spite of how promising the technology itself looks.

    Source - The Markforged Metal X: From Design to Finished Product - YouTube

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    Pricing on the printer, wash station and sinter oven is ~$125k for all three units. Material spec sheet that I have from MarkForged themselves shows the metal to be ~96% dense. While it is true that the sintered parts will shrink 20% from the printed part, the software from MF (Eiger) accounts for this shrinkage so you will end up with a part that is the size you intended in the first place without you having to do any math.

    I am looking at a quote right now ready to pull the trigger on it over the next few days and if the two composite printers I have from MF are any indication of the quality I know this will be a very good purchase as well.

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    Quote Originally Posted by Wild Donkey View Post
    Pricing on the printer, wash station and sinter oven is ~$125k for all three units. Material spec sheet that I have from MarkForged themselves shows the metal to be ~96% dense. While it is true that the sintered parts will shrink 20% from the printed part, the software from MF (Eiger) accounts for this shrinkage so you will end up with a part that is the size you intended in the first place without you having to do any math.

    I am looking at a quote right now ready to pull the trigger on it over the next few days and if the two composite printers I have from MF are any indication of the quality I know this will be a very good purchase as well.
    Hey look, another brand new member countering negative things that have been said about a product for sale by a very internet-savvy manufacturing company. What a shock!

    Quote Originally Posted by Wild Donkey View Post

    While it is true that the sintered parts will shrink 20% from the printed part, the software from MF (Eiger) accounts for this shrinkage so you will end up with a part that is the size you intended in the first place without you having to do any math.
    I'm calling BS on this one, at least to the extent that we're talking about anything comparable in tolerance and quality as to what comes off a CNC machine without extraordinary measures. I've seen new parts come off of cutting edge DMLS machines made by EOS and Trumpf machines (that cost 5-10 times as much as this one) driven by just as sophisticated software, with a better process, and there were still program changes and tweaks to make to correct the production run.

    But I'm always happy to be proven wrong

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    Quote Originally Posted by Johnny SolidWorks View Post
    Hey look, another brand new member countering negative things that have been said about a product for sale by a very internet-savvy manufacturing company. What a shock!
    Yup, I'm new. I was pointed here from a friend. I'm a MF customer, not an employee. I saw someone ask a question and I had legit answers. Take them for what they are worth.

    As to the software's capabilities it's marketing to me too, but I will have some real world experience with it soon.


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