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bjackman
Posts: 13
Registered: ‎12-16-2011
Message 1 of 9 (267 Views)
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Lofting - Need Help!

267 Views, 8 Replies
01-30-2013 03:53 PM

Can anyone tell me if you can create a solid by lofting between two section, in this case they are 3d polylines,  along a given path. The path is at the top of the sections. Using the loft command  I have to key in the PO ( point ) option several times to get the path option to show then when I select the path it gets treated as another section. See attached. Thanks for the help. Brian

bj@suncoast
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Patchy
Posts: 6,224
Registered: ‎09-16-2009
Message 2 of 9 (258 Views)

Re: Lofting - Need Help!

01-30-2013 04:18 PM in reply to: bjackman

Sweep will, Loft won't

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bjackman
Posts: 13
Registered: ‎12-16-2011
Message 3 of 9 (235 Views)

Re: Lofting - Need Help!

01-30-2013 07:43 PM in reply to: Patchy

Hi Patchy, I appreciate the input. It looks like the sweep command created 2 solids over each other. The profiles are not the same and what i'm trying to draw tapers on all surfaces except the top from the larger section on one end to the smaller section at the other end. Brian

bj@suncoast
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JDMather
Posts: 26,329
Registered: ‎04-20-2006
Message 4 of 9 (230 Views)

Re: Lofting - Need Help!

01-30-2013 08:38 PM in reply to: bjackman

It appears to me that the two profiles are planar and should be 2D polylines rather than 3D polylines.

Then it becomes a question of the correct connection.

 

This would be much easier in Autodesk Inventor - do you have access to that program?

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
Contributor
bjackman
Posts: 13
Registered: ‎12-16-2011
Message 5 of 9 (227 Views)

Re: Lofting - Need Help!

01-30-2013 09:00 PM in reply to: JDMather

Hi JD, If I change the sections to 2d polylines will this work with the lofting command? This is a tapered profile on all sides except the top with the curved path being the top of the section on both ends. Yes I do have inventor fusion that came with the 2013 Acad software but have never used it. Thanks for the input. Brian

bj@suncoast
*Expert Elite*
JDMather
Posts: 26,329
Registered: ‎04-20-2006
Message 6 of 9 (205 Views)

Re: Lofting - Need Help!

01-31-2013 07:58 AM in reply to: bjackman

I know it will work in Autodesk Inventor.

AutoCAD can be finicky with Guides/Paths, but I'm guessing it can be done in AutoCAD too.

I will try to find time to run the Inventor solution first.

I am a little concerned about your true design intent though.

Usually with something like this the profile is made perpendicular to the start/end of the path.

I'll try to do it both ways and let you decide.

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
Contributor
bjackman
Posts: 13
Registered: ‎12-16-2011
Message 7 of 9 (199 Views)

Re: Lofting - Need Help!

01-31-2013 08:26 AM in reply to: JDMather

Perpindicular to the path at the ends is what I'm looking for, thanks for the help. Brian

bj@suncoast
*Expert Elite*
JDMather
Posts: 26,329
Registered: ‎04-20-2006
Message 8 of 9 (184 Views)

Re: Lofting - Need Help!

01-31-2013 10:33 AM in reply to: bjackman

bjackman wrote:

Perpindicular to the path at the ends is what I'm looking for, thanks for the help. Brian


Use the UCS ZAxis Object option to set your ucs perpendicular to the end(s) of the path before creating the profile.

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
Contributor
bjackman
Posts: 13
Registered: ‎12-16-2011
Message 9 of 9 (180 Views)

Re: Lofting - Need Help!

01-31-2013 10:40 AM in reply to: bjackman

Accepted as solution. Thanks Brian

bj@suncoast

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