Modeling our boats for CNC cutting

Hello, I’m a high school welding instructor and our hallmark program at our school is our Marine Fab class where we’ve been building aluminum jet “scows” since the late 1980’s. The design is a proven workhorse for our environment. My goal this year is
to model our hull to be able to have it CNC cut, as an option. I’ve been using Rhino for the last 5 years doing much simpler 2D designs and simple 3D stuff like tanks or parts to be 3D printed. I’ll attach some pictures of our boats and a few where we are in the build process. These are all laid out by hand and hand cut, although I have been cutting the transoms and bulkheads out on our CNC plasma table.

Looking for a confirmation that this is indeed possible, and any tips or guidance anyone may have.



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Hi @Winston_Davies ,

With our VisualHull suite, all you need to do is model the boat, and you’ll get all the documentation you need—it’s that straightforward! Check out this quick demo: DEMO.

We’ve proudly contributed to multiple award-winning Super Yacht builds using the VisualHull suite. If you’re looking for something simpler with fewer features, we can create a customized solution just for you.

Feel free to reach out:

My client’s workflow is the following :

  1. Model the boat in 3d in Rhino

  2. Process nesting markings etc using visualhull
    14146_BL10_thk6-A.dwg (95.7 KB)

  3. Generate bending doc
    3PS thk5.pdf (39.7 KB)

  4. Generate full bill of material, stiffner lengths etc etc
    14146-BL10-Lista profili.pdf (456.4 KB)
    14142_B2_Lengths_and_Wt.pdf (150.7 KB)
    14146-BL10-Pesi e Baricentri.pdf (189.2 KB)
    14146-BL10-Lista Parti.pdf (721.6 KB)

  5. Generate 2d drawing

All the phases are complitely automated.
Looking forward to hearing from you!
Best regards,
Farouk

To obtain the shapes to be cut:

Create developable surfaces.

DevSrf | Food4Rhino (The Rhino 6 version also works with Rhino 7 and Rhino 8)

Unroll the surfaces

UnrollSrfUV can be slightly less accurate than UnrollSrf but is better if objects will be flowed on the surface.

Let us know if you need any assistance.

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Hi Winston, I am wondering why you couldn’t draw all your already proven boat of the pieces laid flat ? Then make those drawings into DXF. file format to put into your plasma cutting program.—Mark

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Definitely doable, this is what I do for a living, designing boats in Rhino for welded aluminum construction. Nice to see it being taught in a high school.

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