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Full Nautilus Shell (project shellter)

by RichRap, published

Full Nautilus Shell (project shellter) by RichRap Oct 21, 2011
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Summary

This original model by tc_fea was one of the many things that drove me on to make another 3D printer, it's great and I always wanted to make a complete shell.

So this is a 2.5X scales version with both sides.

This was also an experiment for me with using a small fan blowing across the build platform (Still use a heated bed) - if you look at the picture with the inside prints, you can see the effect of having a fan or not, on one half the inside is more loose then the other, it didn't make a difference to the outside but you get the idea.

Instructions

Scale if needed to be smaller (Or BIGGER !), print and stick together.

This was printed at 60mm/sec with 2 extra 'shells'(Get it) and 0% infill

Admire your achievement and maybe help save the planet.

Give it to a hermit Crab for Project Shellter, this one could fit a small whale!

Check out the project -
makerbot.com/blog/2011/10/18/project-shellter-can-the-makerbot-community-save-hermit-crabs/

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Hi, Thought you might be interested in a 3D Printed Nautilus Shell I made myself. You can see it on Sculpteo (http://www.sculpteo.com/en/design/nautilus-seashell_left-hand-side-2/WHATpNuX)http://www.sculpteo.com/en/des....

This is really nifty. what do you use to model such things?

It's not my model, it was done by tc_fea - and he states "the .mac files create the geometry in ANSYS" - http://www.ansys.com/http://www.ansys.com/

But I imagine OpenScad could do a fine job with a bit of work.

That's right, I used an educational version of ANSYS simply because I am familiar with it. One of these days I hope to find time to learn openscad since I see so many things posted on thingiverse that were created with openscad.

As I mentioned on that blog post, you might want to remove the internal "walls" of that shell. Take a look at how a hermit positions itself inside a glass shell: http://www.advancedaquarist.com/blog/calling-all-hermit-crab-exhibitionists-hand-blown-glass-shellshttp://www.advancedaquarist.co... He might just not have enough room with those walls in there...plus those walls make the shell buoyant.

The walls are ok, look at this http://de.wikipedia.org/w/index.php?title=Datei:NautilusCutawayLogarithmicSpiral.jpghttp://de.wikipedia.org/w/inde...
&
amp;filetimestamp=20090122200152 . But the first "chamber" has to be bigger, maybe remove one of the walls, and make the other chambers smaller

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