Hi, Jon.
I'd use point mapping instead of rails to correct your problem. Rails will
"force" the shape and point mapping will correct the twisted surfaces while
still allowing a relaxed progression between profiles. I'm not that familiar
with the procedure, but I've found it easiest to clear the Auto checkbox,
delete all the existing point sets (select and press ) then go back and
add mapping sets. Pay attention to the values so you are sure you've hit the
end of the curve (think you should get a green dot on vertex, but it's hard
for me to tell).
I don't know what your intentions are, but have posted another method in CF.
If you don't need the specific shape at Sketch2, I'd just loft between the
extrusion and Sketch1 with a tangent wt of .1 or .2 on the Edges profile. You
might try playing with it and see how close to the desired shape you get.
Jeff
====================
"Jon Genova" wrote in message
news:3DD557E4.128749D9@stripe.colorado.edu...
Yea, that's the new one they're using these days. In my day, the
saying was "That's cool".
What's not cool is my attempt to create a loft between two concave
sections and the outcome is a twist or an added facet where there
should only be a smooth transition. I've checked the sketches and they
are closed loops, fully constrained and inventor says they are happy
(no +). I've uploaded the file loloft.zip to the CF area. Can someone
take a look at this file. See the engineer's notebook in the file for
more comments.
Thanks,
-Jon G.
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Jon Genova
Senior Mechanical Design Engineer
BioServe Space Technologies
A NASA Commercial Space Center (CSC)
genovaj@stripe.colorado.edu
Bioserve URL http://www.colorado.edu/engineering/BioServe/
Personal URL http://stripe.Colorado.EDU/~genovaj/