There is an older but nice way to get text on cubes, cylinders, and spheres: http://www.thingiverse.com/thing:16193 This utility should probably be re-writen with text(). 2015-08-06 3:49 GMT+02:00 Chow Loong Jin <hyperair@debian.org>: > On Thu, Aug 06, 2015 at 09:47:57AM +0800, Chow Loong Jin wrote: > > On Mon, Aug 03, 2015 at 12:19:15PM -0700, PYM wrote: > > > Hello, > > > > > > I successfully created a ellipse shaped profile (thanks to the guys on > this > > > forum helping out!). Now i want to engrave text on the flat outside of > this > > > ring, but i cant figure out how i could do it. Anybody a good idea? > Its a > > > tough one, trust me. > > > > Here's a starting point (untested): > > > > for (i = [0:step:(1*quarter_segments/4)-step]) > > rotate (e_a (i), Z) > > translate ([-e_r (i), -e_c (i), 0]) > > rotate (90, Z) > > rotate (90, X) > > linear_extrude (height) > > text (t, valign = "center"); > > > > > > You'll need to figure out the formula for these functions: > > > > e_r(i) gives you the radius from the center of your ellipse at that > specific > > point. > > > > e_a(i) gives you the angle from the X axis for that particular point. > > > > You should be able to get the e_r(i) and e_a(i) by converting e(i)'s > coordinates > > into polar coordinates. > > > > e_c(i) gives you the partial circumference starting from i=0 until > current i. > > I'm still not sure about the formula for this. > > Here's an animation to help you picture what's going on here: > > https://cloud.githubusercontent.com/assets/3725313/4020624/8d55c042-2ac3-11e4-82d6-48f3c5a8b15b.gif > > Imagine that the red piece is your text. You need to emulate that with an > elliptical path. > > -- > Kind regards, > Loong Jin > > _______________________________________________ > OpenSCAD mailing list > Discuss@lists.openscad.org > http://lists.openscad.org/mailman/listinfo/discuss_lists.openscad.org > > -- stempeldergeschichte@googlemail.com <karsten@rohrbach.de> P.S. Falls meine E-Mail kürzer ausfällt als Dir angenehm ist: Ich probiere gerade aus kurze Antworten statt gar keine Antworten zu schreiben. Wenn Du gerne mehr lesen möchtest, dann lass es mich bitte wissen. P.S. In case my e-mail is shorter than you enjoy: I am currently trying short replies instead of no replies at all. Please let me know, if you like to read more. Enjoy!

On 08/09/2015 12:39 AM, Peter Falke wrote: > There is an older but nice way to get text on cubes, cylinders, and > spheres: http://www.thingiverse.com/thing:16193 > > This utility should probably be re-writen with text(). > It already is: https://github.com/brodykenrick/text_on_OpenSCAD ciao, Torsten.