I have drawn something using lines, and I can not Extrude and my guess the lines are not joined. All the other programs I have used, had a way to connect lines as Edit Polyline and so on. I examine the corners all are joined by using the Zoom Box command as close as I can get?

So where is the Join lines function?

Yes If I just draw a box or circle those can be Extruded.

The curve joining tool is not so good when circles in the construction. It will then create alot of useless data and also the solids will then be much bigger and just wrong, because it will be splines and where splines not needed is this just to much. Use better the edge tool.
Sometimes it's better to create first a cover surface.

Edited by user Thursday, June 29, 2017 1:15:57 PM(UTC)  | Reason: Not specified

I guess Shark and Via CAD make here no difference between curves and lines, and it change lines in splines. To join Lines use just the Edge trimming and the curve longing tool. (sorry i installed today a top secret german version and removed all english versions of the program and now i dont know the english names.....

Edited by user Thursday, June 29, 2017 1:26:30 PM(UTC)  | Reason: Not specified

Join will merge two curves into one curve. The resulting curve is G2 continuous (no sharp turns).

An exception to the above is joining two or more lines. Joining two or more lines will create one polyline that preserves sharp turns.


Tim

Edited by user Thursday, June 29, 2017 4:07:12 PM(UTC)  | Reason: Not specified

I am going to post the file. Seems to be a lot of confusion, its just made from Lines not circles or curves.

Hmm do not see a way to attach files. Ok after you Select Post its there....

Edited by user Thursday, June 29, 2017 3:23:29 PM(UTC)  | Reason: Not specified

Push/Pull on Face but what I really wanted was the 360 Lathe around the long side with the notch on the bottom. Yes I tried the Extrude Solid and that worked? Like your #3 picture / screen shot. I wanted it upright 360 Deg like making a cone and I did one in Fusion 360 to make a 3D printed Cone for my laser rotary attachment to engrave mugs or cups. The little notch was sized for a steel round bar. Ok here is my Work Around, I drew a line parallel to the axis I wanted to Extrude around, so now I have a hole in the middle of the Cone, but it worked.
The second or bottom file here (final) was done using a Construction line and the line deleted. No hole now...

Edited by user Friday, June 30, 2017 10:56:14 AM(UTC)  | Reason: Files Added (2)

The simplest way of dealing with mismatched curves like this is to select the point at the end of one curve and place it on the end point of the other curve. It should snap into place.

Mismatched point with constructed curves seem to be a persistent error, maybe it is caused by something like a rounding error.

Edited by user Friday, June 30, 2017 1:47:54 AM(UTC)  | Reason: Not specified

Don't use the Push/Pull Tool, this works sometimes not.
If it say it have gaps, and you use the Cover surface tool to create a ground-surface, it works. The Surface can you also rotating and extruding.

Edited by user Friday, June 30, 2017 1:09:16 PM(UTC)  | Reason: Not specified

I used your original file and could not use the rotate solid tool to rotate around one side of the object unless I ungrouped it as rokoko stated above. As a test, I drew a simple rectangle using the polygon tool to make sure all corners were good and everything was coplaner and I got the same result. In order to rotate about one side of the rectangle using the lathe tool I had to use a construction line as a reference line for rotation or convert the polygon to lines and then rotate around one of the sides. So it looks like your original profile shape is okay, you just can't rotate around a line that is grouped with the profile. I learned something.
xMack