Smooth cabochon.like surface ?

 From: TOM (SIRTOM) 20 Apr 2017  (1 of 9)
 Hi. I tried to achieve a perfectly smooth surface like from a pebble or cabochon with rail revolve and network but did not succeed. So my question to you dear Moisters is if there is a way to get that nice homogeneous shape ? Attachments:

 From: Karsten (KMRQUS) 20 Apr 2017  (2 of 9)
 8381.2 In reply to 8381.1 Hello Tom, here a some examples: For railrevolve take care, that the tangents of the profile are perpendicular to the rotation axis. I hope that helps! Have a nice day Karsten EDITED: 15 Jun 2017 by KMRQUS Attachments:

 From: Michael Gibson 20 Apr 2017  (3 of 9)
 8381.3 In reply to 8381.1 Hi Tom, I'd probably try using Loft with the "Loose" option with horizontal sections ending in a point, like this: http://moi3d.com/forum/index.php?webtag=MOI&msg=8302.4 - Michael

 From: TOM (SIRTOM) 20 Apr 2017  (4 of 9)
 Hi Karsten thank you for the helpful + instructive file - great ! And David for the link ! Will go through the techniques explained and am sure it will lead to the smoothest pebbles ever ;-)

 From: BurrMan 21 Apr 2017  (5 of 9)
 8381.5 In reply to 8381.3 Michael, i think i asked awhile back but forgot. Is there a way for you to look at the spheres points "transforming" after a certain level of manipulation and forcing it to remain? (It transforms into another type of analytical object or something) Maybe the new geometry library can provide it...

 From: Michael Gibson 21 Apr 2017  (6 of 9)
 8381.6 In reply to 8381.5 Hi Burr, sorry I'm not really understanding this. What type of analytic surface do you want to get after editing some sphere points? When you edit the points of a sphere, the original exact sphere is actually replaced by an approximation. That's because the actual exact sphere's control points are not good to squish around because an exact NURBS sphere has "fully multiple knots" (basically corner points) which will form a crease if you move them around individually. - Michael