>From the You Tube video description:
3D printing is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material. 3D printers are generally faster, more affordable and easier to use than other additive manufacturing technologies. 3D printers offer product developers the ability to print parts and assemblies made of several materials with different mechanical and physical properties in a single build process. Advanced 3D printing technologies yield models that can serve as product prototypes. The above description is also found in the Wikipedia entry on 3D printing. >From Wikipedia entry on rapid prototyping: With additive manufacturing, the machine reads in data from a CAD drawing and lays down successive layers of liquid, powder, or sheet material, and in this way builds up the model from a series of cross sections. These layers, which correspond to the virtual cross section from the CAD model, are joined together or fused automatically to create the final shape. And from the Smoky Mountain website: By 2002, we had grown into a full-time business utilizing state-of-the-art 3D CAD software (Solidworks) and Rapid Prototyping technology. Smoky Mountain's website also refers to using SLS and SLA technology which are two types of rapid prototyping. SLA refers to stereolithography. From the Wikipedia entry on stereolithography: Stereolithography has many common names such as: 3D printing, optical fabrication, photo-solidification, solid free-form fabrication and solid imaging. >From the Wikipedia entry on selective laser sintering: Selective laser sintering (SLS) is an additive manufacturing technique that uses a high power laser (for example, a carbon dioxide laser) to fuse small particles of plastic, metal (direct metal laser sintering), ceramic, or glass powders into a mass that has a desired 3-dimensional shape. The laser selectively fuses powdered material by scanning cross-sections generated from a 3-D digital description of the part (for example from a CAD file or scan data) on the surface of a powder bed. After each cross-section is scanned, the powder bed is lowered by one layer thickness, a new layer of material is applied on top, and the process is repeated until the part is completed. and: Unlike some other additive manufacturing processes, such as stereolithography (SLA) and fused deposition modeling (FDM), SLS does not require support structures due to the fact that the part being constructed is surrounded by unsintered powder at all times. --- On Sat, 7/9/11, Tom Hawley <[email protected]> wrote: From: Tom Hawley <[email protected]> Subject: Re: {S-Scale List} Fw: 3 D Printing ....Amazing Technology To: [email protected] Date: Saturday, July 9, 2011, 8:53 PM ----- Original Message ----- From: Charles Weston Isn't this the technique Smoky Mountain uses? > > > > > > > > > > > > > > No. Tom Hawley -- Lansing Michigan #yiv828523477 #yiv828523477ygrp-mkp { border: 1px solid rgb(216, 216, 216); font-family: Arial; margin: 10px 0pt; padding: 0pt 10px; }#yiv828523477 #yiv828523477ygrp-mkp hr { border: 1px solid rgb(216, 216, 216); }#yiv828523477 #yiv828523477ygrp-mkp #yiv828523477hd { color: rgb(98, 140, 42); font-size: 85%; font-weight: 700; line-height: 122%; margin: 10px 0pt; }#yiv828523477 #yiv828523477ygrp-mkp #yiv828523477ads { margin-bottom: 10px; }#yiv828523477 #yiv828523477ygrp-mkp .yiv828523477ad { padding: 0pt; }#yiv828523477 #yiv828523477ygrp-mkp .yiv828523477ad p { margin: 0pt; }#yiv828523477 #yiv828523477ygrp-mkp .yiv828523477ad a { color: rgb(0, 0, 255); text-decoration: none; }#yiv828523477 #yiv828523477ygrp-sponsor #yiv828523477ygrp-lc { font-family: Arial; }#yiv828523477 #yiv828523477ygrp-sponsor #yiv828523477ygrp-lc #yiv828523477hd { margin: 10px 0px; font-weight: 700; font-size: 78%; line-height: 122%; }#yiv828523477 #yiv828523477ygrp-sponsor #yiv828523477ygrp-lc .yiv828523477ad { margin-bottom: 10px; padding: 0pt; }#yiv828523477 a { color: rgb(30, 102, 174); }#yiv828523477 #yiv828523477actions { font-family: Verdana; font-size: 11px; padding: 10px 0pt; }#yiv828523477 #yiv828523477activity { background-color: rgb(224, 236, 238); float: left; font-family: Verdana; font-size: 10px; padding: 10px; }#yiv828523477 #yiv828523477activity span { font-weight: 700; }#yiv828523477 #yiv828523477activity span:first-child { text-transform: uppercase; }#yiv828523477 #yiv828523477activity span a { color: rgb(80, 133, 182); text-decoration: none; }#yiv828523477 #yiv828523477activity span span { color: rgb(255, 121, 0); }#yiv828523477 #yiv828523477activity span .yiv828523477underline { text-decoration: underline; }#yiv828523477 .yiv828523477attach { clear: both; display: table; font-family: Arial; font-size: 12px; padding: 10px 0pt; width: 400px; }#yiv828523477 .yiv828523477attach div a { text-decoration: none; }#yiv828523477 .yiv828523477attach img { border: medium none; padding-right: 5px; }#yiv828523477 .yiv828523477attach label { display: block; margin-bottom: 5px; }#yiv828523477 .yiv828523477attach label a { text-decoration: none; }#yiv828523477 blockquote { margin: 0pt 0pt 0pt 4px; }#yiv828523477 .yiv828523477bold { font-family: Arial; font-size: 13px; font-weight: 700; }#yiv828523477 .yiv828523477bold a { text-decoration: none; }#yiv828523477 dd.yiv828523477last p a { font-family: Verdana; font-weight: 700; }#yiv828523477 dd.yiv828523477last p span { margin-right: 10px; font-family: Verdana; font-weight: 700; }#yiv828523477 dd.yiv828523477last p span.yiv828523477yshortcuts { margin-right: 0pt; }#yiv828523477 div.yiv828523477attach-table div div a { text-decoration: none; }#yiv828523477 div.yiv828523477attach-table { width: 400px; }#yiv828523477 div.yiv828523477file-title a, #yiv828523477 div.yiv828523477file-title a:active, #yiv828523477 div.yiv828523477file-title a:hover, #yiv828523477 div.yiv828523477file-title a:visited { text-decoration: none; }#yiv828523477 div.yiv828523477photo-title a, #yiv828523477 div.yiv828523477photo-title a:active, #yiv828523477 div.yiv828523477photo-title a:hover, #yiv828523477 div.yiv828523477photo-title a:visited { text-decoration: none; }#yiv828523477 div#yiv828523477ygrp-mlmsg #yiv828523477ygrp-msg p a span.yiv828523477yshortcuts { font-family: Verdana; font-size: 10px; font-weight: normal; }#yiv828523477 .yiv828523477green { color: rgb(98, 140, 42); }#yiv828523477 .yiv828523477MsoNormal { margin: 0pt; }#yiv828523477 o { font-size: 0pt; }#yiv828523477 #yiv828523477photos div { float: left; width: 72px; }#yiv828523477 #yiv828523477photos div div { border: 1px solid rgb(102, 102, 102); height: 62px; overflow: hidden; width: 62px; }#yiv828523477 #yiv828523477photos div label { color: rgb(102, 102, 102); font-size: 10px; overflow: hidden; text-align: center; white-space: nowrap; width: 64px; }#yiv828523477 #yiv828523477reco-category { font-size: 77%; }#yiv828523477 #yiv828523477reco-desc { font-size: 77%; }#yiv828523477 .yiv828523477replbq { margin: 4px; }#yiv828523477 #yiv828523477ygrp-actbar div a:first-child { margin-right: 2px; padding-right: 5px; }#yiv828523477 #yiv828523477ygrp-mlmsg { font-size: 13px; font-family: Arial,helvetica,clean,sans-serif; }#yiv828523477 #yiv828523477ygrp-mlmsg table { font-size: inherit; }#yiv828523477 #yiv828523477ygrp-mlmsg select, #yiv828523477 input, #yiv828523477 textarea { font: 99% Arial,Helvetica,clean,sans-serif; }#yiv828523477 #yiv828523477ygrp-mlmsg pre, #yiv828523477 code { font: 115% monospace; }#yiv828523477 #yiv828523477ygrp-mlmsg * { line-height: 1.22em; }#yiv828523477 #yiv828523477ygrp-mlmsg #yiv828523477logo { padding-bottom: 10px; }#yiv828523477 #yiv828523477ygrp-mlmsg a { color: rgb(30, 102, 174); }#yiv828523477 #yiv828523477ygrp-msg p a { font-family: Verdana; }#yiv828523477 #yiv828523477ygrp-msg p#yiv828523477attach-count span { color: rgb(30, 102, 174); font-weight: 700; }#yiv828523477 #yiv828523477ygrp-reco #yiv828523477reco-head { color: rgb(255, 121, 0); font-weight: 700; }#yiv828523477 #yiv828523477ygrp-reco { margin-bottom: 20px; padding: 0px; }#yiv828523477 #yiv828523477ygrp-sponsor #yiv828523477ov li a { font-size: 130%; text-decoration: none; }#yiv828523477 #yiv828523477ygrp-sponsor #yiv828523477ov li { font-size: 77%; list-style-type: square; padding: 6px 0pt; }#yiv828523477 #yiv828523477ygrp-sponsor #yiv828523477ov ul { margin: 0pt; padding: 0pt 0pt 0pt 8px; }#yiv828523477 #yiv828523477ygrp-text { font-family: Georgia; }#yiv828523477 #yiv828523477ygrp-text p { margin: 0pt 0pt 1em; }#yiv828523477 #yiv828523477ygrp-text tt { font-size: 120%; }#yiv828523477 #yiv828523477ygrp-vital ul li:last-child { border-right: medium none ! important; } --- On Sat, 7/9/11, Roy Inman <[email protected]> wrote: From: Roy Inman <[email protected]> Subject: Re: {S-Scale List} Fw: 3 D Printing ....Amazing Technology To: "S-Scale" <[email protected]> Date: Saturday, July 9, 2011, 10:10 PM What is the difference? Roy From: Charles Weston <[email protected]> Reply-To: S-Scale <[email protected]> Date: Sat, 09 Jul 2011 20:01:25 -0700 (PDT) To: S-Scale <[email protected]> Subject: Re: {S-Scale List} Fw: 3 D Printing ....Amazing Technology Perhaps the video actually depicts selective laser sintering rather than 3D printing? Charles Weston --- On Sat, 7/9/11, Tom Hawley <[email protected] <mailto:t.hawley%40comcast.net> > wrote: From: Tom Hawley <[email protected] <mailto:t.hawley%40comcast.net> > Subject: Re: {S-Scale List} Fw: 3 D Printing ....Amazing Technology To: [email protected] <mailto:S-Scale%40yahoogroups.com> Date: Saturday, July 9, 2011, 8:53 PM ----- Original Message ----- From: Charles Weston Isn't this the technique Smoky Mountain uses? > > > > > > > > > > > > > > No. Tom Hawley -- Lansing Michigan [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
