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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 ---------------------------------------------------------------------------------------------------------------------------------- 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/ ---------------------------------------------------------------------------------------------------------------------------------- |
#2
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Towards the *fully* 3D-printed electric cars.
On 07/03/2017 08:31 AM, Robert Clark wrote:
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. For a hobbyist trying to design/build their own electric vehicle acquiring or fabricating the chassis is literally the least difficult part of the job. Why would you want to make it _more_ difficult 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 Why bother, it's not like high performance electric motors are rare. Looking at the steps in the video, it appears they could all be accomplished by 3D-printing. Insisting that every part of a homebrew EV also be 3D printed at home from one's personal 3D printer is a tits-on-a-bull project for turbodorks. |
#3
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Towards the *fully* 3D-printed electric cars.
In sci.physics Robert Clark wrote:
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 ---------------------------------------------------------------------------------------------------------------------------------- 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/ ---------------------------------------------------------------------------------------------------------------------------------- Arm waving nonsense. You need multiple 3D printers if you need to print with multiple materials. Consumer 3D printers print small parts from cheap plastic and cost hundreds of dollars. Industrial 3D printers that print large parts with metals cost hundreds of thousands of dollars and the printing material costs more than raw metal stock. 3D printing is advantageous for parts with complex shapes that are difficult or impossible to make with other techniques but is disadvantageous for most parts that ARE manufacturable with conventional techniques as they can be made faster and cheaper. 3D printing makes PARTS that still need to be assembled. 3D printing an electric motor is just silly. -- Jim Pennino |
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Towards the *fully* 3D-printed electric cars.
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Towards the *fully* 3D-printed electric cars.
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#7
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Towards the *fully* 3D-printed electric cars.
In sci.physics Jeff Findley wrote:
In article , says... 3D printing requires special raw stock manufactured just for 3D printing no matter what the print material is. 3D printing is slow and expensive compared to any other method of making parts so only become economical if the part in question is so complex that 3D printing it is cheaper than any other method. Actually if the 3D printed part replaces many other parts (e.g. SuperDraco engines) then it's faster to print than it is to manufacture and assemble all those other parts. But that does fall under your "so complex" exception because in that case it is cheaper to print than try to use other manufacturing techniques. In aerospace, think things like liquid fueled rocket engine combustion chambers with lots of tiny internal cooling passages. Those are a p.i.t.a. to make using conventional manufacturing techniques, but a breeze to 3D print. And the total market for such things is a tiny fraction of all things manufactured, or even of all 4 slice toasters manufactured. The cost and speed of 3D printing will obviously never match that of stamping out sheet metal, casting, or NC machining. For "trivial" parts, that is true. I installed a new garage door at home a few weeks ago. Lots of stamped sheet metal parts there, even the hinges. My estimate is that for all things manufactured parts that can be made cheaper and faster by conventional means amount to about 99.99%. But progress is being made in the field. GE is working on producing a 3D printer capable of printing 1 meter x 1 meter x 1 meter parts. This is coming from its aircraft engine division. 3D printing is a very hot topic these days. Yes, for very complex parts that would otherwise have to be made in pieces then somehow assempled. Exactly. Also, the other option that 3D printing opens up is more shape optimized parts. These things are optimized so that "useless" mass is simply gone from the design. They tend to look "organic" rather than "machined" due to their complex shapes. I've heard this called "light-weighting" parts from management types. 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. Have you ever looked at the interior structures of an aircraft? 3D printing is, and always will be, a niche manufacturing method. Handy at times, but certainly not a world changer. Jeff -- Jim Pennino |
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Towards the *fully* 3D-printed electric cars.
Jeff Findley wrote:
Also, the other option that 3D printing opens up is more shape optimized parts. These things are optimized so that "useless" mass is simply gone from the design. They tend to look "organic" rather than "machined" due to their complex shapes. I've heard this called "light-weighting" parts from management types. Sometimes you light-weight a part too far. Back in 1985, my mechanic called me in to look at a repair. The new brake disk was much heavier and much less "organic". But the original one warped because it didn't have enough mass to absorb the heat till it could be radiated away, and the manufacturer provided a much simpler but heavier replacement part. The new part was so much different looking than the original one that he wanted my permission to proceed. (As a 400 pound guy who likes to drive econobox microcars, I always seem to have alignment and brake problems only on the front left. Hmmm?) -- We are geeks. Resistance is voltage over current. |
#9
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Towards the *fully* 3D-printed electric cars.
In sci.physics Robert Clark wrote:
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 ---------------------------------------------------------------------------------------------------------------------------------- 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/ ---------------------------------------------------------------------------------------------------------------------------------- Arm waving nonsense. You need multiple 3D printers if you need to print with multiple materials. Consumer 3D printers print small parts from cheap plastic and cost hundreds of dollars. Industrial 3D printers that print large parts with metals cost hundreds of thousands of dollars and the printing material costs more than raw metal stock. 3D printing is advantageous for parts with complex shapes that are difficult or impossible to make with other techniques but is disadvantageous for most parts that ARE manufacturable with conventional techniques as they can be made faster and cheaper. 3D printing makes PARTS that still need to be assembled. 3D printing an electric motor is just silly. -- In sci.physics Robert Clark wrote: 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 ---------------------------------------------------------------------------------------------------------------------------------- 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/ ---------------------------------------------------------------------------------------------------------------------------------- Arm waving nonsense. You need multiple 3D printers if you need to print with multiple materials. Consumer 3D printers print small parts from cheap plastic and cost hundreds of dollars. Industrial 3D printers that print large parts with metals cost hundreds of thousands of dollars and the printing material costs more than raw metal stock. 3D printing is advantageous for parts with complex shapes that are difficult or impossible to make with other techniques but is disadvantageous for most parts that ARE manufacturable with conventional techniques as they can be made faster and cheaper. 3D printing makes PARTS that still need to be assembled. 3D printing an electric motor is just silly. -- You are correct that metal 3D-printed parts by amateurs were only designed by them, but had to be actually printed by one of the large 3D-printing companies. Still, that leaves open the possibility that a scale-model car could be designed by amateurs to be fully 3D-printed by one of the large companies. The largest of the professional, metal 3D-printers common now can 3D-print parts about a foot across and cost about $250,000. So you can imagine a 3D-printer that can 3D-print parts, say, 10 feet across, would be 10^3 = 1,000 times larger in volume and mass, and perhaps a thousand times more expensive, to $250 million. An expensive proposition. But if it can be shown a scale-model car can be fully 3D-printed then it might be worthwhile for a large industrial company to invest in this when it would mean any car of any model could be 3D-printed on demand. Bob Clark |
#10
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Towards the *fully* 3D-printed electric cars.
Robert Clark wrote:
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. * Transmission not needed; look at the Tesla. 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. * GACK! A DC motor with commutator! How gross. The working part of the engine should be exactly like the armature in the Tesla car: design is same as armature in an AC shaded pole fan motor. That design would not be too difficult for a 3Dprinter. Bob Clark |
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