Inventor General Discussion

Inventor General Discussion

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ryan.sanderson
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

Hi

 

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

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udayag
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
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cwhetten
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.

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JimSteinmeyer
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.

Jim

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Contributor
ryan.sanderson
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

 

Capturebb.JPGCapturebbb.JPGCaptureiuuu.JPG

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