How to 3D sketch for loft centerline

[canicoll]

Hi guys, I am having trouble creating a loft between two shapes on different planes.

I have been at this for three days now and I've run out of 'search patience' so i'm hoping someone here can help me.

I am making a boombox for my iphone and I want to cut the body with lofts from the small rectangles to the large rectangles on the front of the box in a circular, horn shaped form.

I have tried drawing 3D sketch lines with fillets as well as splines but I cannot get a nice profile. I did get close once by using about 20 spline points but the loft wouldn't work due to the spline not being smooth enough. (I think that was the error. Hard to remember now)

Has anyone done something similar to this that could help me please?

[sanket223.patil]

Can you share(Export) you model here ?

[canicoll]

Sure, here is the file

[g-andresen]

Hi Cameron,

here is one way to realize that.

günther

[canicoll]

Hi Guenther and thank you for your input although that is not the form I am having trouble with.

If you look inside the body where the phone sits, you will see two small rectangles located at the approximate location of the iphone's speakers. That is where I need to start the loft and then in a snail or coil form, they will open up to the rectangles at the bottom of the part.

[TrippyLighting · Accepted solution]

I doubt that you can do this with a single loft. And even if that would be successful it would not be the best way to this.

In general the technique I am showing is not a technique I'd recommend for beginners.

Here's the end result (definitely needs some tweaking):

This is the shape I am cutting out of your base block:

If you roll the timeline back you can see how it is constructed.

[canicoll]

Awesome approach Peter, Thank you.

I will admit I have never looked at surface modelling because of ignorance but after seeing how you did this it might be time to learn.

[TrippyLighting]

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@canicoll wrote:

I will admit I have never looked at surface modelling because of ignorance but after seeing how you did this it might be time to learn.

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A few years ago a dear friend of mine  @PhilProcarioJr  told me that I should learn to work more with surfaces and my response was that I did not really need it.

Boy, was I ever wrong!

Would you mind accepting my post as the solution ?

[chrisplyler]

@canicoll

I think he meant his previous post, which actually contained the Solution.

[canicoll]

Oops, should I (can I?) change it?

[TrippyLighting]

Done 😉

You can also mark more than one answer as the solution if more than one are presented in a thread.

[canicoll]

Good to know and thanks again for the help