Editor

what is it?

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Looks like a Plug Mold for an America's Cup build, but it's probably too short. 

Guessing that it's going to have a canting keel or outboard foils, as the "sponson" bumps appear designed to reduce wetted surface when heeled

 

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Some kind of grindstone used to process unobtanium...

https://i.pinimg.com/originals/10/c4/9e/10c49e8c53afd5e218107b595f383ddf.jpg

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For a moment I thought those were electrical plug sockets all round the join ...

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25 minutes ago, LionessRacing said:

Any two stone of difference hardness gives a sphere.... and all the wonderful vocabulary of feudal milling https://en.wikipedia.org/wiki/Thirlage

 

Mill bitch is a novel one.

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Its baby Jesus sitting on that self to the right

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2 hours ago, Editor said:

what-is-it-12-2-1024x715.jpg
Upside-Down cake?

I know, I know, it's Dental health week!

That's one big incisor!

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I am surprised no one knows it is so obvious.

Olympic Bobsled 

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36 minutes ago, floater said:

yeah? "The chances of succeeding with it seem theoretically good." 

 

Idunno what happened with plug, and why it was split in two... But I'm hoping that the 'sustainable' 3d printing can help plugs and prototypes come along cheaper than milling it out, with less loss of material...

The concept of this particular boat I don't fully understand... A lot of proven trailerable boat in that range... But I guess it's just what the world needs... Yet another boat type...

 

 

36 minutes ago, floater said:

 

 

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Is it a plug for a modern 6 metre? Some of them are pretty weird. And fugly.

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Looks like IKEA  "flat pack" yachts are not far away....

Bulkheads or frames with short sections of hull attached, all nested in a box. plug the sections together and tape the joints and you are good to go!

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17 hours ago, VWAP said:

Its baby Jesus sitting on that self to the right

I think so 

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On 12/2/2019 at 6:15 PM, Kaptajnen said:

 

Idunno what happened with plug, and why it was split in two...

 

 

 

Easy, they couldn't fit it in the door so they cut it in two. It just has not dawned on them yet the finished hull won't fit either....

I am assuming it is the limitation of their 3D printer.

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Plug for a Bonneville streamliner.

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3 hours ago, SloopJonB said:

Plug for a Bonneville streamliner.

Word! Son of Challenger IV?

 

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1 hour ago, Sail4beer said:

Who knew?!

It took me years to understand how dissimilar like substrates were in regard to hardness. Great example!

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18 minutes ago, Sail4beer said:

It took me years to understand how dissimilar like substrates were in regard to hardness. Great example!

and three stones, ground together in pairs should give you flat surfaces as the concave/convex even out 

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https://ericweinhoffer.com/blog/2017/7/30/the-whitworth-three-plates-method

"

The neat thing about surface plates is that they do not require precision tools to create. By using the “three plate method”, developed by Joseph Whitworth, flat surfaces can be created by using gravity and a simple hand-scraping tool, or by lapping the plates against each other. By starting with three plates of relative flatness, rubbing the plates against each other in alternating pairs to remove the high spots can yield fantastic results. 

The process can be completed in six steps, and then repeated until the desired level of flatness is achieved. In this visual explanation, the surface finishes of the three plates are exaggerated. Before beginning this process, the three plates (Red, Green and Blue) should be machined or ground to as flat a surface as possible, to remove all unnecessary lapping work. In addition, a fine abrasive compound is often used between plates to assist in material removal. Tom also has a great video series about this, which includes some compound and technique recommendations."

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Read the article and will check out the vids even though it makes total sense now. 

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Great, another rabbit hole to go down and get lost in.  So much fascinating information, so little time.  Wait, I have loads of time on my hands, off I go!

Fuck, I love this place!

Here is an interesting video about hand and power scraping precision machine surfaces.

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On 12/2/2019 at 6:01 PM, Editor said:

what-is-it-12-2-1024x715.jpg
Upside-Down cake?

The material before shaping it to a surf board.
761537672_Handshapingasurfboardfromblank.PNG.b5d2245b7987d74bad73532e234e94e9.PNG

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