Inventor General Discussion

Inventor General Discussion

Posts: 19
Registered: ‎12-22-2011
Message 1 of 5 (836 Views)

3d sketch help pleeeeeeaaaaase

836 Views, 4 Replies
12-22-2011 06:19 AM



Im struggling to create the drawing which I require.


I've attached a couple of pics which show roughly what is required.


The problem Im having is when carrying out a 3d sketch, I would like the arc or even a spline to have a controllable radius in two directions.


Please take a look at my pics to help understanding easier.


I need to do this so that the curve sketched is equivalent of being drawn on a curved surface, I need good technique as I have numerous curves to draw, increasing in size the further away from the centre they get as I creating an impeller bladeCapturejkjkjkjkjk.JPGCapturenbbnnbnbn.JPG

Posts: 90
Registered: ‎06-07-2010
Message 2 of 5 (795 Views)

Re: 3d sketch help pleeeeeeaaaaase

12-22-2011 09:43 AM in reply to: ryan.sanderson

Can you create two surfaces and get their intersection? (The first surface is a horizontal cylinder, and the second is an extrusion of a circular arc)

Udaya Gunasena
Fusion Development
*Expert Elite*
Posts: 1,088
Registered: ‎09-03-2008
Message 3 of 5 (788 Views)

Re: 3d sketch help pleeeeeeaaaaase

12-22-2011 10:00 AM in reply to: ryan.sanderson

Something like this?  Extruding as surfaces isn't even necesssary.  Just create the two 2D sketches, then create a 3D sketch and intersect the first two sketches.


Attached file is 2012.

Distinguished Contributor
Posts: 326
Registered: ‎05-16-2011
Message 4 of 5 (772 Views)

Re: 3d sketch help pleeeeeeaaaaase

12-22-2011 11:29 AM in reply to: cwhetten

Would this 3D sketch then be patterned around the circle on sketch 1? Ryan mentioned the need for several arcs so I assume they would be arrayed around the circle.


Inventor Premium 2013 SP1.1
Vault 2013- plain vanilla version
HP G71 notebook
celeron cpu w\ 4gb RAM and 64 bit system
Win 7 home premium

Ya, my boss has me running my personal machine at work.
Posts: 19
Registered: ‎12-22-2011
Message 5 of 5 (750 Views)

Re: 3d sketch help pleeeeeeaaaaase

12-22-2011 01:51 PM in reply to: ryan.sanderson

thanks for all your help guys, managed to get the desired effect, I drew two two 2d images and then used the 3d image to intersect the line. very clever great advice thanks



Post to the Community

Have questions about Autodesk products? Ask the community.

New Post
Are You Going To Be @ AU 2014? Feel free to drop by our AU topic post and share your plans, plug a class that you're teaching, or simply check out who else from the community might be in attendance. Ohh and don't forgot to stop by the Autodesk Help | Learn | Collaborate booths in the Exhibit Hall and meet our community team if you get a chance!