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#292
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Towards the *fully* 3D-printed electric cars.
On Thu, 20 Jul 2017 19:15:20 -0500, Serg io
wrote: On 7/20/2017 6:54 PM, wrote: On Thu, 20 Jul 2017 20:42:26 -0000, wrote: In sci.physics wrote: On Thu, 20 Jul 2017 11:34:24 -0400, Phil Hobbs wrote: On 07/20/2017 11:18 AM, Serg io wrote: On 7/19/2017 11:56 PM, David Mitchell wrote: wrote: On Wed, 19 Jul 2017 05:08:56 +0100, David Mitchell Uh, the widely varying properties, maybe? Titanium and gold have slightly different properties. Jimp posted a reference to a Wikipedia article. You really should read it. We can 3-D print *right now*: Thermoplastics, eutectic metals, edible materials, Rubbers, Modeling clay, Plasticine, Metal clay (including Precious Metal Clay), Ceramic materials, Metal alloy, cermet, metal matrix composite, ceramic matrix composite Nylon or Nylon with short carbon fiber + reinforcement in the form Carbon, Kevlar, Glass and Glass for high temperature fiber Photopolymer,Photopolymer + thermally activated chemistry Almost any metal alloy including Titanium alloys why not print pizza.... ? should be a huge demand for that... I saw a pancake printer at Makerfest a few years ago. The pancakes were pretty good tasting too. Why would you print, rather than extrude? Some people are monomaniacal about 3D printing. I guess the difference is the size of the dot. Pancakes are just a big dot. Pizza is a big dot, with smaller dots on it. embedded dots. Recursive dots. |
#293
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Towards the *fully* 3D-printed electric cars.
In article , says...
On 7/19/2017 11:56 PM, David Mitchell wrote: wrote: On Wed, 19 Jul 2017 05:08:56 +0100, David Mitchell Uh, the widely varying properties, maybe? Titanium and gold have slightly different properties. Jimp posted a reference to a Wikipedia article. You really should read it. We can 3-D print *right now*: Thermoplastics, eutectic metals, edible materials, Rubbers, Modeling clay, Plasticine, Metal clay (including Precious Metal Clay), Ceramic materials, Metal alloy, cermet, metal matrix composite, ceramic matrix composite Nylon or Nylon with short carbon fiber + reinforcement in the form Carbon, Kevlar, Glass and Glass for high temperature fiber Photopolymer,Photopolymer + thermally activated chemistry Almost any metal alloy including Titanium alloys why not print pizza.... ? should be a huge demand for that... I believe this has already been done. http://www.businessinsider.com/beehe...printer-2017-3 While not a printed pizza, the first "pizza ATM" was installed in my state: http://www.nbcnews.com/feature/colle...s-first-pizza- atm-opens-xavier-university-cincinnati-n626501 If these things can be profitable anywhere, it's on college campuses. Jeff -- All opinions posted by me on Usenet News are mine, and mine alone. These posts do not reflect the opinions of my family, friends, employer, or any organization that I am a member of. |
#294
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Towards the *fully* 3D-printed electric cars.
wrote in message ...
In sci.physics David Mitchell wrote: ... Strati is little more than a $30,000 golf cart and the finish is an abomination. Not the point, remember the whole "mature technology" thing? If we can do that *now*, imagine what we'll be able to do in 30 years time. Yes, it is the whole point. They get speed by using thick layers as there is no other way to do it. This results in a crap finish. And this IS an industrial grade printer. A National Institute of Standards and Technology (NIST) noted this is a problem with 3D-printing, that there is wide variation in results and quality even in 3D-prints of objects by the same process: NIST ADDRESSES METAL 3D PRINTER CHALLENGES WITH DIGITAL THREAD STRATEGY. BEAU JACKSON 2017-07-17 8:17 PM Quote:
They propose solutions based on a uniformity of the digital information provided both before and after processing. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/n...ce/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- -- |
#295
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Towards the *fully* 3D-printed electric cars.
wrote in message ...
In sci.physics David Mitchell wrote: ... Strati is little more than a $30,000 golf cart and the finish is an abomination. Not the point, remember the whole "mature technology" thing? If we can do that *now*, imagine what we'll be able to do in 30 years time. Yes, it is the whole point. They get speed by using thick layers as there is no other way to do it. This results in a crap finish. And this IS an industrial grade printer. A National Institute of Standards and Technology (NIST) noted this is a problem with 3D-printing, that there is wide variation in results and quality even in 3D-prints of objects by the same process: NIST ADDRESSES METAL 3D PRINTER CHALLENGES WITH DIGITAL THREAD STRATEGY. BEAU JACKSON 2017-07-17 8:17 PM Quote:
They propose solutions based on a uniformity of the digital information provided both before and after processing. On the other hand see this: Navy Partnership Goes to New Depths with First 3D-Printed Submarine. JULY 20, 2017 https://energy.gov/eere/articles/nav...nted-submarine It's a 3D-printing of a carbon-fiber submarine hull. Judging by the video the finish is quite smooth in this case, which would be required for a submarine. Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Finally, nanotechnology can now fulfill its potential to revolutionize 21st-century technology, from the space elevator, to private, orbital launchers, to 'flying cars'. This crowdfunding campaign is to prove it: Nanotech: from air to space. https://www.indiegogo.com/projects/n...ce/x/13319568/ ---------------------------------------------------------------------------------------------------------------------------------- -- |
#296
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Towards the *fully* 3D-printed electric cars.
In sci.physics Robert Clark wrote:
wrote in message ... In sci.physics David Mitchell wrote: ... Strati is little more than a $30,000 golf cart and the finish is an abomination. Not the point, remember the whole "mature technology" thing? If we can do that *now*, imagine what we'll be able to do in 30 years time. Yes, it is the whole point. They get speed by using thick layers as there is no other way to do it. This results in a crap finish. And this IS an industrial grade printer. A National Institute of Standards and Technology (NIST) noted this is a problem with 3D-printing, that there is wide variation in results and quality even in 3D-prints of objects by the same process: NIST ADDRESSES METAL 3D PRINTER CHALLENGES WITH DIGITAL THREAD STRATEGY. BEAU JACKSON 2017-07-17 8:17 PM Quote:
They propose solutions based on a uniformity of the digital information provided both before and after processing. On the other hand see this: Navy Partnership Goes to New Depths with First 3D-Printed Submarine. JULY 20, 2017 https://energy.gov/eere/articles/nav...nted-submarine It's a 3D-printing of a carbon-fiber submarine hull. Judging by the video the finish is quite smooth in this case, which would be required for a submarine. Exactly what a 3D printer is usefull for, a one off prototype. -- Jim Pennino |
#297
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Towards the *fully* 3D-printed electric cars.
An article from 2015:
3-D-printed car could hit streets next year. Chris Woodyard, USA TODAY 4:48 p.m. EST November 12, 2015 http://www.usatoday.com/story/money/...swim/75530830/ Several companies have come out with what they call "3D-printed" cars, but none have 3D-printed the most important part, the engine. This would be difficult to do with an internal combustion engine, with its high temperatures, multiple moving parts, and high tolerances. But it shouldn't be too difficult with an electric engine. In fact considering there are now miniature 3D-printers on the market for the home, an amateur could be the first to produce an entire, scale-size, 3D-printed car. And then it could be scaled up to produce a full-size, working, fully 3D-printed automobile. This would revolutionize the industry, obviously. The two most difficult parts would be the engine and the transmission. This video shows how you can make your own simple electric motor: How to Make an Electric Motor at Home - YouTube. http://www.youtube.com/watch?v=0p2QTE26VOA Looking at the steps in the video, it appears they could all be accomplished by 3D-printing. Bob Clark Just saw this: SPEE3D Puts Supersonic Speed in Metal 3D Printing. Michael Molitch-Hou posted on July 26, 2017 http://www.engineering.com/3DPrintin...-Printing.aspx According to the company their method which uses high speed (supersonic) jets to deposit the metal does not have the resolution of other metals so they are focusing on applications where that is not required. Bob Clark -- ---------------------------------------------------------------------------------------------------------------------------------- Carbon nanotubes can revolutionize 21st-century technology IF they can be made arbitrarily long while maintaining their strength. Some proposals to accomplish that he From Nanoscale to Macroscale: Applications of Nanotechnology to Production of Bulk Ultra-Strong Materials. American Journal of Nanomaterials. Vol. 4, No. 2, 2016, pp 39-43. doi: 10.12691/ajn-4-2-2 | Research Article. http://pubs.sciepub.com/ajn/4/2/2/ ---------------------------------------------------------------------------------------------------------------------------------- |
#298
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Towards the *fully* 3D-printed electric cars.
In sci.physics Robert Clark wrote:
An article from 2015: snip old crap Just saw this: SPEE3D Puts Supersonic Speed in Metal 3D Printing. Michael Molitch-Hou posted on July 26, 2017 http://www.engineering.com/3DPrintin...-Printing.aspx According to the company their method which uses high speed (supersonic) jets to deposit the metal does not have the resolution of other metals so they are focusing on applications where that is not required. Bob Clark Which means pretty much every part in a car couldn't be printed with this. -- Jim Pennino |
#299
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Towards the *fully* 3D-printed electric cars.
An article from 2015:
3-D-printed car could hit streets next year. Chris Woodyard, USA TODAY 4:48 p.m. EST November 12, 2015 http://www.usatoday.com/story/money/...swim/75530830/ Several companies have come out with what they call "3D-printed" cars, but none have 3D-printed the most important part, the engine. This would be difficult to do with an internal combustion engine, with its high temperatures, multiple moving parts, and high tolerances. But it shouldn't be too difficult with an electric engine. In fact considering there are now miniature 3D-printers on the market for the home, an amateur could be the first to produce an entire, scale-size, 3D-printed car. And then it could be scaled up to produce a full-size, working, fully 3D-printed automobile. This would revolutionize the industry, obviously. The two most difficult parts would be the engine and the transmission. This video shows how you can make your own simple electric motor: How to Make an Electric Motor at Home - YouTube. http://www.youtube.com/watch?v=0p2QTE26VOA Looking at the steps in the video, it appears they could all be accomplished by 3D-printing. Bob Clark And this is fast 3D printing in plastic on a conveyor belt: 3D Printing Big/Long Objects. https://www.facebook.com/futurism/vi...5645552947979/ Could it be adapted to print metals? Bob Clark ---------------------------------------------------------------------------------------------------------------------------------- Carbon nanotubes can revolutionize 21st-century technology IF they can be made arbitrarily long while maintaining their strength. Some proposals to accomplish that he From Nanoscale to Macroscale: Applications of Nanotechnology to Production of Bulk Ultra-Strong Materials. American Journal of Nanomaterials. Vol. 4, No. 2, 2016, pp 39-43. doi: 10.12691/ajn-4-2-2 | Research Article. http://pubs.sciepub.com/ajn/4/2/2/ ---------------------------------------------------------------------------------------------------------------------------------- -- |
#300
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Towards the *fully* 3D-printed electric cars.
In article ,
wrote: In sci.physics Fred J. McCall wrote: wrote: My estimate is that for all things manufactured parts that can be made cheaper and faster by conventional means amount to about 99.99%. And the world will only need 3 computers. Usual Chimp wisdom. Kiss my ass Red Herring McTroll. And about the only place where weight matters that much is in things that fly and in that case useless mass is already gone from the design without the expense of 3D printing. That's why we use carbon fiber on cars; because weight doesn't matter. "Where's the Affordable Carbon Fiber Automobile?" https://www.technologyreview.com/s/5...er-automobile/ "While the cost of carbon fiber materials and production has declined in recent decades, it remains prohibitive for anything but limited applications in niche vehicles." An other subjective quote from the same article: " But for the first time, a handful of 2016 models sold in neighborhood car dealerships will feature ultralight yet expensive carbon fiber materials. " A large part of the racing bikes sold in the Netherlands are carbon fiber. So? -- Jim Pennino Groetjes Albert -- Albert van der Horst, UTRECHT,THE NETHERLANDS Economic growth -- being exponential -- ultimately falters. &=n http://home.hccnet.nl/a.w.m.van.der.horst |
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