open source 3D metal printer

gippgig

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Dec 11, 2013, 5:34:48 AM12/11/13

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www.spacemart.com/reports/Scientists_build_a_low_cost_open_source_3D_metal_printer_999.html

Bobby Baum

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May 31, 2014, 1:29:45 AM5/31/14

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3D-printed rocket engine:
www.spacex.com/press/2014/05/27/spacex-completes-qualification-testing-superdraco-thruster

On 12/11/13, gippgig <gip...@gmail.com> wrote:
> www.spacemart.com/reports/Scientists_build_a_low_cost_open_source_3D_metal_printer_999.html
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shawn wilson

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May 31, 2014, 7:03:42 AM5/31/14

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Here's the paper
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6678531

Looks quite doable. Though I still like the Delta design best (I'll have to research this).

... and Julia said someone had tried welding and had failed... oh well, this field is starting to move real fast. If we don't do what we want, we'll just follow in someone else's footsteps (not a bad thing just not as exciting).

shawn wilson

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May 31, 2014, 7:36:19 AM5/31/14

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Going through the doc, I notice the most expensive part is the welder. So if someone has one of those to donate (per his price list) this becomes a $300 project.

Anyone want to give up a dusty welder? :)

Zachariah Mully

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May 31, 2014, 9:10:32 AM5/31/14

to Bla...@hacdc.org, shawn wilson

They're using a simple (though nice) 120v mig welder that you can find for far less than the retail price they quote. My hobart 140 (same exact welder, different color) was < $300 new. You'll need something with gas hookups which excludes only the cheapest horrible freight stuff. You'll spend as much in supplies and parts as you did on the welder, if not more.

Anyone know someone at airgas or Roberts oxygen? If one was going to be built I'm sure we could convince them to sponsor it or at least donate materials for it. It'd be fantastic PR for them.

Z

Julia Longtin

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May 31, 2014, 2:06:22 PM5/31/14

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there are no pictures of their printed parts. i have seen this article, and am looking at 'lost pla' instead.

shawn wilson

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May 31, 2014, 2:44:21 PM5/31/14

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see the actual ieee article, page 4

R. Mark Adams, PhD

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Jun 1, 2014, 11:08:28 AM6/1/14

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Looks like "lost pla" gives a much nicer finish, at least today. Looking forward to see what happens, though - if the technology improves at anything like the rate of plastic FDM, it is going to be interesting to watch. I have been hanging onto the materials to make a Gingery-style forge, to try it out - I was really impressed with the results from this (http://3dtopo.com/lostPLA/) guy, and would love to replicate. Does anybody have any experience with the process?

Thanks!

-Mark

On Sat, May 31, 2014 at 2:06 PM, Julia Longtin <julia....@gmail.com> wrote:

Bobby Baum

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Aug 2, 2014, 4:42:40 AM8/2/14

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Varying composition:
www.spacemart.com/reports/Printing_the_Metals_of_the_Future_999.html

gippgig

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Oct 22, 2014, 7:53:29 PM10/22/14

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www.spacemart.com/reports/Chinese_scientists_unveil_liquid_phase_3_D_printing_method_using_low_melting_metal_alloy_ink_999.html
www.spacemart.com/reports/ORNL_research_reveals_unique_capabilities_of_3_D_printing_999.html

Bobby Baum

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Oct 22, 2014, 11:37:35 PM10/22/14

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www.spacemart.com/reports/New_advances_in_additive_manufacturing_using_laser_solid_forming_to_produce_metallic_parts_999.html
online.liebertpub.com/doi/full/10.1089/3dp.2014.0016

Bobby Baum

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Nov 15, 2014, 3:53:57 AM11/15/14

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Titanium:
aviationweek.com/blog/video-rawfeed-additive-manufacturing-titanium-structures?NL=AW-05_20141110_AW-05_369&YM_RID='email'&YM_MID='mmid'&sfvc4enews=42&cl=article_5

Alberto Gaitan

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Nov 15, 2014, 11:43:37 AM11/15/14

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"Wire-fed welding torch lays down a bead of titanium"

Wonder if this is done within an inert gas environment. Doesn't titanium instantly oxidize when you weld it in an oxygen-rich environment?

On Sat Nov 15 2014 at 3:53:56 AM Bobby Baum <gip...@gmail.com> wrote:

Titanium:
aviationweek.com/blog/video-rawfeed-additive-manufacturing-titanium-structures?NL=AW-05_20141110_AW-05_369&YM_RID='email'&YM_MID='mmid'&sfvc4enews=42&cl=article_5

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shawn wilson

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Nov 15, 2014, 6:34:57 PM11/15/14

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IDK why they didn't mention the possible engineering that could be made possible with a metal that can fairly easily be made more pliable vs hard and what making a soft honeycomb with a rigid exterior or maybe using the same idea to print a single piece lock.....

Also easy local customization of synthetic bones or plates (anyone want money - bet there's some here).

Bobby Baum

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Dec 3, 2014, 8:08:20 PM12/3/14

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3D-printed LEDs: dx.doi.org/10.1021/nl5033292
By the way, the Dec. 2014 issue of National Geographic has a story on
3D printing.

gippgig

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Dec 30, 2014, 7:06:55 PM12/30/14

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www.spacedaily.com/reports/New_algorithm_a_Christmas_gift_to_3D_printing___and_the_environment_999.html

Bobby Baum

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Apr 7, 2018, 11:47:11 PM4/7/18

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www.spacedaily.com/reports/Berkeley_Lab_scientists_print_all_liquid_3_D_structures_999.html

David Kaufman

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Apr 9, 2018, 4:40:30 PM4/9/18

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I just saw something like this at USASEF this weekend. They were printing collagen (for example, to make heart valve) into a viscous gel. The gel could easily be melted away by raising the temperature a few degrees.

On Apr 7, 2018, at 11:47 PM, gippgig <gip...@gmail.com> wrote:

www.spacedaily.com/reports/Berkeley_Lab_scientists_print_all_liquid_3_D_structures_999.html

gippgig

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Apr 28, 2018, 8:17:47 PM4/28/18

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Zero-G 3D metal printing:

www.mro-network.com/print/16691

gippgig

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Jun 4, 2018, 8:41:22 PM6/4/18

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www.sciencemag.org/news/2018/06/these-stunning-3d-models-are-transforming-scientists-raw-data

gippgig

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Dec 16, 2018, 3:06:46 PM12/16/18

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3D nanofabrication by volumetric deposition and controlled shrinkage of patterned scaffolds
Science Vol. 362 Issue 6420 p. 1281 doi: 10.1126/science.aau5119

gippgig

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Dec 21, 2018, 1:29:15 AM12/21/18

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A path for lignin valorization via additive manufacturing of high-performance sustainable composites with enhanced 3D printability
advances.sciencemag.org/content/4/12/eaat4967/tab=pdf

gippgig

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Jan 11, 2019, 6:09:41 PM1/11/19