Please watch this video choosing relevant points only enable loft otherwise not. What is the reason behind this?
Solidworks tutorial | sketch Anvil in Solidworks - YouTube
Time 15.20-15.58
Please watch this video choosing relevant points only enable loft otherwise not. What is the reason behind this?
Solidworks tutorial | sketch Anvil in Solidworks - YouTube
Time 15.20-15.58
Hi Maha,
I believe with lofts if you dont use same points, it will give you funny twists or fail.
I think it uses points like a guide curve?
Check attachment for example of twisted loft, edit loft to see how sketches and points were used
Problem is selection of two corners producing an error. While selection of other two corners producing a correct result.
Correct result
Hi Maha,
I'm guessing that you haven't done the SolidWorks tutorials on 'Lofts' yet Maha?
Sometimes they can be a little tricky until you get the hang of them. The use of 'guide curves' and 'centrelines' particularly when 3D sketches are involved is something you need to learn about. Also, another tip is the use of 'split entities' for when doing lofts or sweeps from one shaped profile to a completely different shaped profile. 'Split entities' can help you avoid unnecessary twists and kinks.
Dave.
Maha,
I think it's to do with the order the points are picked in. In the video for the example that fails, he picks a point on the small profile & then one on the large profile (as your first screen shot) & the resultant loft has only 5 longitudinal sections. When he picks from the large profile first & then the small one (as your second screen shot), the resultant loft has 10 longitudinal sections & works. Try doing it again using the first two points but pick the point on the larger profile first & see if it makes a difference.
Thank you very much for the explanation.
Please explain what is meant “longitudinal sections”.
Okay I know it.
Maha,
It might not be the correct terminology but I see it as the number of sections the profiles are broken into when connecting one to the other. There are 6, including the corners, when going from small to large profile & 11, including corners, when going from large to small profile. This will be do do with the construction of each profile. In this case one is semi-circle, the other is a spline. Ideally these profiles should be broken into the same number of sections to give an equal amount of control points in each one.
This is an excellent explanation. It can be applied for future models as well. It makes to know about the “longitudinal sections” unnecessary. Even though, is there any option in the options window to make the “longitudinal sections” visible? Because in my file it is not visible.
Maha,
Right click on the yellow loft preview & select "Show All Connectors"
It is producing a strange result.
A to B is lofting.
B to A is not lofting producing error result.
X to Y is not lofting producing error result.
Y to X is lofting.
Maha,
I think it's to do with the order the points are picked in. In the video for the example that fails, he picks a point on the small profile & then one on the large profile (as your first screen shot) & the resultant loft has only 5 longitudinal sections. When he picks from the large profile first & then the small one (as your second screen shot), the resultant loft has 10 longitudinal sections & works. Try doing it again using the first two points but pick the point on the larger profile first & see if it makes a difference.