Extruding with an angle.... All  1-2  3-8

 From: Frenchy Pilou (PILOU) 7 Jan 2010  (3 of 8)
 Another solution :) (the 2 lines are of course drawn with the Helper lines for have Tangencency ;) Not so a big deal ;) ps Else this function exist in Google Sketchup ;) Smartpushpull ;) http://forums.sketchucation.com/viewtopic.php?f=323&t=23341 With the Michael's solution you must calculate the height before and the wight of offset ;) EDITED: 7 Jan 2010 by PILOU Attachments:

 From: Michael Gibson 7 Jan 2010  (4 of 8)
 3228.4 In reply to 3228.3 Hi Pilou, that's an interesting solution! But just keep in mind that offset and scale are not equivalent - offset will keep an even distance between 2 shapes, which can often involve changing the proportion of different internal segments. For example if you have a curve like this: Then offset will produce a result like this: Notice how it is much differently shaped than just a uniform scaling of the original shape? This is why you usually want to use offset and not just simple scaling in order to maintain an even "wall thickness" between pieces. The only way that scaling gives you the same result is in some special symmetrical cases like a circle. - Michael

 From: Frenchy Pilou (PILOU) 7 Jan 2010  (5 of 8)
 3228.5 In reply to 3228.4 Yes Scaling is homothetic (when x,y,z), Offset not ;) So maybe Offset with my pyramydal concave convex form don't work due the different incline angles ;) EDITED: 7 Jan 2010 by PILOU