assistance with creating a ship hull

[Anonymous]

Hello everyone. 

I made this boat with Sketchup that I now try to recreate in Fusion 360. 

I did draw the outlines and then used a mix of patches and sweeps to create body´s which I eventually thickened. I often ran into errors, however, managed to get it done in the end - almost.

One problem is, that I have to limit the path or the guide rail of my sweeps to 0.99 to make the sweep succeed. I guess that is because both, the path and the guide rail end up in the same point. Looks like I get away with it but I am sure there is a better solution for that. ( the reason why the sweep doesn´t show up in the screenshot is because I had to push cmd to capture it - that hides it apparently)

Further, I end up with gaps after I thickened the bodys. It´s understandable why that happens but I also can´t come up with a better solution. 

I really appreciate if someone could push me into the right direction how to model such a body.

This is the link to my model

Screenshots

Thanks very much guys and have a nice day!

Manuel

[davebYYPCU]

You will do better with 3 Patches.  Looking from the rear quarter, one for the bottom, chine and vertical.  Patch will go right to the point of two lines.  So will Loft.

Might help.....

[jeff_strater]

@Anonymous, ship hull modeling is a pretty popular topic in this forum.  Do a search for "hull design" to see a good list of topics.  It's harder than it looks, apparently (I've never tried it myself).  Here are few starter threads:

• surfacing-a-boat-hull
• ofting-ship-hull-frame-sketch-s
• ship-hull-modelling
• loft-a-hull
• the-hull-of-the-ship
• hms-warrior-hull-model
• how-to-draw-a-boat-hull

[Beyondforce · Accepted solution]

Hey @Anonymous,

I have created a few videos with boat hull techniques in Fusion 360, check them out:

http://bit.ly/2DiED82

Cheers / Ben
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[Anonymous]

Thanks bud, I came across your videos before already and find them really helpful. I watched it again and I think I did the lofting wrong. Anyway man, thanks again. Works just fine now! 🙂

Manuel

[Anonymous]

Unfortunately I am not able to thicken my final result. I can thicken each surface without any problems but this results in the same gaps as mentioned before. If I try to thicken the combined body, it takes minutes to process and eventually results in an error. I was so close 🙂

I also tried to offset each surface, loft them together again and create a solid that way but I end up with weird interferences in the corner.

Any further ideas?

Project

[Beyondforce]

Hi @Anonymous,

Please attach f3d file and I'll check it out.

Ps. I have sent you PM, did you check it out?

Cheers / Ben.

[Anonymous]

Attached mate, cheers. I´ve seen your pm, will check it out.

the "outer shell" are the patches resulting from the lofted sketches. Thats what I want to thicken. 

My workaround now was to copy that shell, scale it down a little bit and then loft between between these two bodys. That kind of works but results in a thicker wall at the tip of the boat.

[Beyondforce · Accepted solution]

Hey M.

I hope this will help - https://autode.sk/2AXoPpB

Cheers / B.

[Anonymous]

Mate, you made my day. Thanks very much. While thicken it to 3mm almost crashed my laptop, 2mm works fine. I did not think about the relation of the wall thickness and the overall size of the model.

I am going to 3D print this, that´s why it is relatively small. I simply hope that 2mm wall thickness will be enough to make it watertight and solid.

I thought about ubscaling the body, then thicken it, and then scale it down again. However, that involves some proper calculation to get the right thickness. Do you think that might work in the end, though?

Thanks again

[Beyondforce]

I have just Scale it by x2 and thickness changed to 4 mm. But, if you think that 2mm is not enough for printing with the current size, then we can try another technique to make it thicker in the current size.
Try to print the 2mm first and if necessary, I will show you how to make it even thicker 😉

B.

[Anonymous]

I am currently travelling so my 3D printer is around 20000 km away. I simply working on it to gain experience with fusion 360. It is probably going to be another 6 months before I actually can try printing.

If you find a few minutes, I´d appreciate the different approach, but no worries if not. You already helped a lot.

Thanks

[Beyondforce · Accepted solution]

The second technique is to close the whole boat and turn it into a solid body. Then you slice the body into 2-4 pieces and use the Shell tool to create the thickness that you need.

B.

[Beyondforce]

Hey men, I'll appreciate it if you get back to me regarding the PM as soon as you can. 🙂

[Anonymous]

Creating a shell unfortunately results in an error, no matter what thickness I try to use

[Beyondforce]

Please send me the file with the new size and I will check it out.

[Anonymous]

There we go. You can find the body "full body". Thanks mate

[Beyondforce · Accepted solution]

Here you go ;):
https://knowledge.autodesk.com/community/screencast/3fe1b14b-23ef-4466-a7ed-63a702295b34

Cheers.

[Anonymous]

Legend mate! Worked fine with 3mm as well!

[Beyondforce]

Excellent, I also look forward to your beta tests results 😉