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Lofting problem
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Mali Zeleni 
Newbie 
Joined: 06.Sep.2014 Location: Croatia Using: AutoCAD 2014 Status: Offline Points: 8 |
 Topic: Lofting problemPosted: 06.Sep.2014 at 16:36 |
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I prepared closed profiles for lofting, but I encountered a problem. Can somebody tell what could be the problem?
Here are some picture illustrating the problem:  Profiles in red denote the place of irregularity in the lofted 3D solid.    Thank you for any help. |
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Kind regards, Hrvoje
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John Connor
Senior Member 
Joined: 01.Feb.2011 Location: United States Using: AutoCAD 2018 Status: Offline Points: 7175 |
Posted: 06.Sep.2014 at 18:16 |
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A copy of the drawing would be needed to troubleshoot the problem.
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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."
<<AutoCAD 2015>> |
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Mali Zeleni
Newbie
Joined: 06.Sep.2014 Location: Croatia Using: AutoCAD 2014 Status: Offline Points: 8 |
Posted: 06.Sep.2014 at 19:57 |
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Thank you John for your answer. Here is the file with the drawing:
uploads/497931/VL_za_krmenu_protustatvu_-_2.dwg In the meantime I found out that the closed profiles are not of the same type. There are polylines (green), splines (yellow) and 3D polylines (blue).  In the next step I added one profile on the place where the solid has discontinuity in the form. The first blue line, lower. Also, I started to loft from the top (!?) and the form was better. On two places I have the irregularity in the surface. I don't know yet, how to solve this problem.   |
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Kind regards, Hrvoje
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Mali Zeleni
Newbie
Joined: 06.Sep.2014 Location: Croatia Using: AutoCAD 2014 Status: Offline Points: 8 |
Posted: 06.Sep.2014 at 21:02 |
 If I avoid critical part of the solid it looks fine.  Now must find the way how to close the gaps. |
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Kind regards, Hrvoje
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John Connor
Senior Member
Joined: 01.Feb.2011 Location: United States Using: AutoCAD 2018 Status: Offline Points: 7175 |
Posted: 06.Sep.2014 at 22:18 |
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I guess you aren't going to upload a copy of the drawing. OK. Good luck.
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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."
<<AutoCAD 2015>> |
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Mali Zeleni
Newbie
Joined: 06.Sep.2014 Location: Croatia Using: AutoCAD 2014 Status: Offline Points: 8 |
Posted: 06.Sep.2014 at 22:19 |
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If I use each third profile solid looks much better. Also the geometry is not accurate as it can be.
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Kind regards, Hrvoje
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Mali Zeleni
Newbie
Joined: 06.Sep.2014 Location: Croatia Using: AutoCAD 2014 Status: Offline Points: 8 |
Posted: 06.Sep.2014 at 22:21 |
P.S. I checked: it is possible to open the drawing. Edited by Mali Zeleni - 06.Sep.2014 at 22:26 |
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Kind regards, Hrvoje
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Mali Zeleni
Newbie
Joined: 06.Sep.2014 Location: Croatia Using: AutoCAD 2014 Status: Offline Points: 8 |
Posted: 07.Sep.2014 at 21:43 |
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I refined the geometry and the 3D solid looks better.
  I still have two places on the solid which should be put in order. Is the lofting bad approach for such body? I see that only one surface is not good: all surfaces located in one plane are OK. The flow of lines on curved surface seems to be "drunk".  Here is the copy of the drawing: uploads/497931/VL_za_krmenu_protustatvu_-_2_-_Copy.dwg I thank for each answer. Edited by Mali Zeleni - 07.Sep.2014 at 21:59 |
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Kind regards, Hrvoje
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John Connor
Senior Member
Joined: 01.Feb.2011 Location: United States Using: AutoCAD 2018 Status: Offline Points: 7175 |
Posted: 08.Sep.2014 at 12:24 |
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Looks like you are getting helped over at CADTutor so there is no need to continue the conversation here.
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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."
<<AutoCAD 2015>> |
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Mali Zeleni
Newbie
Joined: 06.Sep.2014 Location: Croatia Using: AutoCAD 2014 Status: Offline Points: 8 |
Posted: 08.Sep.2014 at 13:26 |
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Kind regards, Hrvoje
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