eggshape

[gort ben]

Successfully drawn a eggshape for tabletop using 3 elipses and arcs and converted these into polylines but having trouble converting them all into 1 polyline for lofting.

[ReMark]

Attach a copy of your drawing to your next post.

[irneb]

When working with polylines with arcs - the endpoints aren't always exact. Try grip-editing them to be on top of each other. Then PE-Join them. Even then you might find that the PL is not closed properly.

 

Otherwise draw the pl from scratch using Arcs. Don't worry about the arcs not being on the linework, just draw them from endpoint-to-endpoint of the linework. After closing the new PL grip-edit the arcs to match the linework. At least this way you know your PL is "exactly" correct.

[irneb]

And even if it's impossible to convert the shape into a polyline (i.e. it has to be eliptical arcs and/or splines) then use the boundary command to generate regions instead of polylines. They work just as well for extruding / revolving / lofting / etc.

[ReMark]

gort: Where's the drawing dude? Or did you figure it out on your own?

[Dadgad]

Welcome to the forum.

Is PRESSPULL out of the question?

[SLW210]

I would revolve to make an egg shape.

 

[ATTACH=CONFIG]38986[/ATTACH][ATTACH=CONFIG]38987[/ATTACH]

[irneb]

As far as i understand the OP, the issue is not that he wants the surfaces. He's got a 2d shape which he wants to loft to another 2d shape. The shapes are drawing using eliptical arcs - and the loft command wants single entities for each profile. That's why I'm suggesting using the boundary command to convert multiple boundary objects into a region object which can contain any shape (not just lines & arcs like a polyline can).

 

E.g. see the attached "egg shape" made of 2 eliptical arcs, converted to a region using boundary, and then used as one of th 2 profiles in loft.

TestLoft.dwg

[SLW210]

I drew the egg profile with circles, trimmed and PEDIT, M then joined. Easy peezy.

 

How to Make an Egg Shape Pattern