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Plane Wing with loft
Alejandro_Cobian
Member Posts: 6 ✭
Hello, I am having trouble creating a plane wing. I am trying to loft the wing but I can't get the curvature down to enclose the wing. Any suggestions?
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Comments
Lofting to a point is possible, but technically it creates a degenerate surface. I would try adding a section near the tip, and lofting to that, then create the tip with a fill surface.
If you share a public document, it would be easier to help.
Something like this? I've had trouble with this in the past.
Someone was pressing for a lot more complicated wing and pushing limits so this sample is quite simplified. Lofting from profile to point worked fine until guides were added.
https://cad.onshape.com/documents/c735f911656197548a135a03/w/f0b97f029af9835d24cd6326/e/9f1d252e21538c0b5bbca246
@Alejandro_Cobian
Not going to lie - elliptical wings are tough to model (was for me). The problems that I had, were all in the wingtip (getting it to blend smoothly, lots of trial and error). Best solution I found was to loft the tip in two sections, split at the spar
I will link my spitfire model below, It is a large file so you may have to give it several minutes to load (depending on your computer, and models state of update).
https://cad.onshape.com/documents/f8325372b1cee20fbdd86e70/w/32560267c9871510da503545/e/46006a65a90d55eac1810927
This model was only for 3D modeling practice - not a true representation and was chosen because spitfires have few flat surfaces, or straight edges.
What level of detail are you trying to achieve - are you designing a real aircraft, RC aircraft, or a child's toy?
It's been a while, and I've forgotten exactly what I did - but find folder "wings", then find part named "wing skins". Maybe, you can see how I made it - and give you some ideas how to move forward.
I'm designing for high school students. I am going to make a basic tutorial video so that my students can create their own models.
I appreciate the help!
@glen_dewsbury Why did you use a mate connector on sketch 2?
This is a simple design for students to use
The mate connecter gets sketch position without adding a plane to the feature list. Just little less clutter that can build in longer feature trees. Also, the mate connecter can be used off the end or center of a curve with less setup than the plane function, Once the student understands what a working plane is and its purpose then in most cases I find this is faster by building from existing geometry.
https://cad.onshape.com/documents/c735f911656197548a135a03/w/f0b97f029af9835d24cd6326/e/983b050d248fbcec995d2435
Got it. I read students. I use this in my class.
Here is this: https://docs.google.com/document/d/1pxD5SYzUSHHDUf_UE2Pi714_eEWO0w8LlpJH_CWvL6M/edit?usp=sharing
@Alejandro_Cobian
This is slightly off topic - but a good part to use as a teaching example, is a hex head bolt. Relatively simple, but can demonstrate many basic commands (depending on how detailed you want to get). Just a thought.