Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.soft-sys.math.mathematica > #16784
| Path | csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!usenet.blueworldhosting.com!feeder01.blueworldhosting.com!border4.nntp.dca.giganews.com!backlog4.nntp.dca3.giganews.com!border2.nntp.dca.giganews.com!nntp.giganews.com!newspeer1.nac.net!newspump.sol.net!post2.nntp.sol.net!posts.news.twtelecom.net!nnrp3.twtelecom.net!not-for-mail |
|---|---|
| From | Narasimham <mathma18@gmail.com> |
| Newsgroups | comp.soft-sys.math.mathematica |
| Subject | Variable section and hollow Tubes for economic 3D printing |
| Date | Sat, 12 Apr 2014 09:15:52 +0000 (UTC) |
| Sender | steve@smc.vnet.net |
| Approved | Steven M. Christensen <steve@smc.vnet.net>, Moderator |
| Message-ID | <lib088$i68$1@smc.vnet.net> (permalink) |
| Lines | 13 |
| Organization | Time-Warner Telecom |
| NNTP-Posting-Date | 12 Apr 2014 09:21:52 GMT |
| NNTP-Posting-Host | 75864d0a.news.twtelecom.net |
| X-Trace | DXC=E7Qa;48kTg7Z4UDfW1fB>6C_A=>8kQj6=;[h;PUXBgb4Pm3bW^Q9cm6EFiONJ7[Go6\NXS2fQ\lU< |
| X-Complaints-To | abuse@twtelecom.net |
| X-Original-Bytes | 1571 |
| Xref | csiph.com comp.soft-sys.math.mathematica:16784 |
Show key headers only | View raw
Although the tube is not fully filled, a constant thickness prescribed on a variable cross section works. This meets a good number of solid modeling requirements.
TubeRadius = 0.2 ; TR[u_] = 0.2 + 0.15 Cos[u] ; a = 1; Plot[TR[t], {t, 0, 2 Pi}]
tor = ParametricPlot3D[ {(a + TR[t] Cos[ph]) Cos[t], (a + TR[t] Cos[ph]) Sin[t], .5 t + TR[t] Sin[ph]}, {ph, -Pi,Pi}, {t, 0, Pi}];
torTHK = ParametricPlot3D[ {(a + TR[t] Cos[ph]) Cos[t], (a + TR[t] Cos[ph]) Sin[t], .5 t + TR[t] Sin[ph]}, {ph, -Pi,Pi}, {t, 0, Pi}, PlotStyle -> Thickness[.07], Axes -> None, Boxed -> False]
HelTHK = ParametricPlot3D[ {(a + TR[2 ph] Cos[ph])
Cos[ t], (a + TR[2 ph] Cos[ph]) Sin[t], .8 t + TR[2 ph] Sin[ph]}, {ph, -Pi, Pi}, {t, 0, Pi}, PlotStyle -> Thickness[.04], Axes -> None, Boxed -> False]
Narasimham
Back to comp.soft-sys.math.mathematica | Previous | Next | Find similar
Variable section and hollow Tubes for economic 3D printing Narasimham <mathma18@gmail.com> - 2014-04-12 09:15 +0000
csiph-web