Help with Chris Shakal's Turbofan Blade
Hi all, I just joined, my name is Ally, 16, from London, UK & I recently came across Chris Shakal's amazing tutorials and models for modelling the high bypass turbofan engine. Unlike him I don't have CATIA but do have SW 2012. So I thought seeing as i'm home from school, just to play about with the tutorial & try it on SW.
I'm on his step 8 where he says:
"Click on the “Multi-Section Surface” tool on the right. Enter the 4 sections you made on the 4 planes as the “sections,” and enter the 2 splines that connected the endpoints as your “guides.” Make sure the little red arrows on your sections face the same way. If not, click on them and they’ll change direction. *Note: You have to click on the sections in order or else the surface won’t work."
I know the Multi-section tool on CATIA is equivalent to the Loft on SW but I can't seem to loft the blade section. Here's screenshots of how far I got :-/
Screenshot 1 shows what it said initially
Screenshot 2 shows what it said when I selected the 4 spline sections of the blade and two splines on the sides of the blade (in purple)
Please explain it in simple steps, I'm not as good as you guys at all!
Thanks :-)
Hope you can all help me & shout out for Chris to take a look & reply back please
Ally
8 Answers
I am doing it now in SW 2012 and I think instead of trying loft you want to use the boundary surface command. I will upload my results when finished.
I was able to do it in SW2012. the tutorial uses surfaces so it was not the loft command you needed. I left the names of the feature in my model you can look at. you can turn on the surface toolbar or just search for the feature in the upper right corner.
good luck.
wide-chord fan in SW2012 from catia tutorial
[SOLVED]
Hi stephen, thanks so much for your help, I haven't yet downloaded your file i wanted to try it myself, I used your suggestion to use the feature 'boundary surface' in the surfaces tab, in the first dialog box I selected each spline section across the length of the blade, then in the second dialog box (i think its the box saying direction 2) i selected the two splines connecting all endpoints of the sections (there are two of these long splines on either side of the blade) and OK'ed everything and VIOLA! THANKS TO YOU STEPHEN!!! :-)
Answered with a tutorial: https://grabcad.com/tutorials/help-with-chris-shakal-s-turbofan-blade
I'm not positive since I've never used solid works, but it seems like your sections and guide curves aren't intersecting in at least one spot. That's a common error when doing things like this in catia, so I wouldn't be surprised if that's the issue.
See screenshot 3 - see it shows the loft snapped to the LHS now. Seems like whatever guide curve I select first (LHS or RHS) its the side that the loft snaps to.
Hi Stephen I'm
Sorry for the late reply but I've been trying to reply to you for the past half hour off my phone but it doesn't send and yes of course I'll upload the file now and btw I've seen your tutorials and feedback on other projects and you r so awesome at instructing!
see my file mate
Heres a principle I apply in 3d Modeling. The most simple and less steps method. If the solid loft works then why do surface boundaries and lofts just more steps
