Patrick There is a caption to the flickr photo. That caption explains that the one on the left is the stock one. The one in the middle is 3d printed in white plastic. The one on the right is 3d printed in stainless steel. There's plenty of information online for how 3d printing works, from a physics perspective.
The best cocktail party explanation for why 3d printing is awesome is the international space station. There are several million parts in the ISS, and it's prohibitively expensive to have a part fail and prohibitively expensive to carry spare parts and prohibitively expensive to take spare parts there. It is trivially cheap to upload the design of any part to the ISS. So, they have a 3d printing setup, and a couple hundred pounds of material, from which they can 3d print anything that fails, on-demand. For those of us on earth, it's a little harder to justify the awesomeness. I had a prototype of that part made by a traditional machinist for $77 from aluminum. The 3D printed stainless steel version cost $9. The plastic 3d printed version cost $2. On Sunday, December 21, 2014 12:10:05 PM UTC-8, Patrick Moore wrote: > > Bill: explain, please. Is the "printed" one the white one? What is it made > of? I understand that, whatever the material, it is applied in little > sprays or bursts and -- what, heated to consolidate it? > > A pretty woman into bikes showed me around her bro's 3D print/design lab > ~3 years ago but we didn't hit it off and I never found out exactly how > they work and what the resulting products are used for besides mockups -- > apparently that's what her brother did, besides artsy crafty things. > > On Sun, Dec 21, 2014 at 10:58 AM, Bill Lindsay <tape...@gmail.com > <javascript:>> wrote: > >> Very 21st Century update. I had the same part manufactured via 3D >> printing. >> >> https://www.flickr.com/photos/45758191@N04/15886652769/ >> >> >> >> On Wednesday, December 17, 2014 8:23:29 AM UTC-8, Bill wrote: >>> >>> Well I still have one bike in the fleet with 'tubers and this looks like >>> just the ticket. At first glance I wondered why someone hadn't done these >>> maybe 50 years ago. It's never too late. Great idea! >> >> -- >> You received this message because you are subscribed to the Google Groups >> "RBW Owners Bunch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to rbw-owners-bun...@googlegroups.com <javascript:>. >> To post to this group, send email to rbw-owne...@googlegroups.com >> <javascript:>. >> Visit this group at http://groups.google.com/group/rbw-owners-bunch. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Resumes, LinkedIn profiles, bios, and letters that get interviews. > By-the-hour resume and LinkedIn coaching. > Other professional writing services. > http://www.resumespecialties.com/ > www.linkedin.com/in/patrickmooreresumespec/ > Patrick Moore > Alburquerque, Nouvelle Mexique, Vereinigte Staaten > > ************************************* > *The point which is the pivot of the norm is the motionless center of a > circumference on the rim of which all conditions, distinctions, and > individualities revolve. *Chuang Tzu > > *Kinei hos eromenon. It moves as the being-loved. *Aristotle > > *The Love that moves the Sun and all the other stars. *Dante > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
