Inventor General Discussion

Inventor General Discussion

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Member
djsoundcrafter
Posts: 3
Registered: ‎07-15-2012
Message 1 of 6 (411 Views)
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Lofting/extruding to a point, along a curve?

411 Views, 5 Replies
07-15-2012 08:13 PM

Hi all, fairly new user here. Coming from Sketchup to real big boy tools. I watched the tutorial videos and tried poking around a bit for this specific answer but came up a bit short.

 

What I'm trying to do is loft a face to a point. Easy enough. I've got my point established on an offset work plane, and I can just loft to that, however, I get nothing but straight lines. (First attachment)

 

An example of the ideal outcome in SketchUp is the second attachment.

 

I'm having the most difficulty trying to draw the curves along which I want the face to be lofted because, even as I sketch along my 2D plane, I can't snap the endpoints of my arcs to the endpoints of the face (or the point to which they'll all connect). Can I get some tips as to how to make this happen? File in progress attached.

*Expert Elite*
JDMather
Posts: 26,624
Registered: ‎04-20-2006
Message 2 of 6 (384 Views)

Re: Lofting/extruding to a point, along a curve?

07-16-2012 04:31 AM in reply to: djsoundcrafter

Blade Base sketch is not constrained.  You might start here.

http://home.pct.edu/~jmather/SkillsUSA%20University.pdf

 

Point Plane is not needed.

You do not have a sketch point to loft to.

 

You do not have any Rails (guide curves).

 

Please mark this response as "Accept as Solution" if it answers your question.
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http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
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JDMather
Posts: 26,624
Registered: ‎04-20-2006
Message 3 of 6 (371 Views)

Re: Lofting/extruding to a point, along a curve?

07-16-2012 05:12 AM in reply to: JDMather

Don't look at this till you have gone through the Help>Learning Tools>Tutorials and the pdf I linked previously.

 

 

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
Autodesk Inventor 2014 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Member
djsoundcrafter
Posts: 3
Registered: ‎07-15-2012
Message 4 of 6 (328 Views)

Re: Lofting/extruding to a point, along a curve?

07-17-2012 07:51 AM in reply to: JDMather

What's the key to drawing the guide rails? Since they're perpendicular to the base plane, how can I fix their starting points to it? I didn't seem to find this in tutorials.

*Expert Elite*
Curtis_Waguespack
Posts: 2,898
Registered: ‎03-08-2006
Message 5 of 6 (324 Views)

Re: Lofting/extruding to a point, along a curve?

07-17-2012 08:07 AM in reply to: djsoundcrafter

Hi djsoundcrafter,

 

You can use the Project Geometry tool to bring geometry in from existing sketches. So if you create a sketch on an origin plane running perpendicular to the base sketch, you can then use Project Geometry to pull in the corner of the base sketch as point from which you can constrain the rail sketches.

 

I hope this helps.
Best of luck to you in all of your Inventor pursuits,
Curtis
http://inventortrenches.blogspot.com




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Member
djsoundcrafter
Posts: 3
Registered: ‎07-15-2012
Message 6 of 6 (321 Views)

Re: Lofting/extruding to a point, along a curve?

07-17-2012 08:13 AM in reply to: Curtis_Waguespack

Awesome, thanks very much, Curtis, and JD for your useful tutorial!

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