Struggling to model an aerofoil adapter in Inventor: maker said “two lofts, no guide curves” but I can’t get it working
I’m trying to recreate the adapter shown in the left and middle attached images. my failed attempt proof of concept is image 3. The original maker told me:
“I usually loft two sketches for these adapters with no guide curves. I just use a tangent condition and play around with the weighting."
I understand the basic idea, but I can’t get my model to loft at all.
My current approach was:
- Sketch the bottom aerofoil profile
- Sketch the top aerofoil/plate profile
- Try to connect the front and rear curves using vertical 3D sketch lines as guide curves
- Loft between the two profiles
The issue is that the guide curves don’t seem to snap cleanly to the profiles, and they don’t control the loft properly. The result either fails or gives a bad shape.
I also don’t understand how the original model gets the smooth curved front and rear vertical lines. What sketch are they part of?
I made a simple proof-of-concept model, but I’m clearly missing something in the setup because it doesnt work (shown in image)
How do I actually loft the two aerofoils too get the nice curve, noting the top aerofoil is slightly bigger than the bottom.
Any help would be massively appreciated. I’m pretty stuck on this one.