LB 15
Cunt
Is it a plug for a modern 6 metre? Some of them are pretty weird. And fugly.
what is it?
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ROADKILL666
Basket case
Narco sub
ROADKILL666
Basket case
sammy_cda
New member
It's a mold for my new bicycle seat.
Alcatraz5768
Super Anarchist
New Silver Bullet. If you know, you know.
Crump's Brother
Anarchist
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.
SloopJonB
Super Anarchist
Plug for a Bonneville streamliner.
Willin'
Super Anarchist
Sail4beer
Starboard!
Sail4beer
Starboard!
It took me years to understand how dissimilar like substrates were in regard to hardness. Great example!
LionessRacing
Super Anarchist
and three stones, ground together in pairs should give you flat surfaces as the concave/convex even out
Sail4beer
Starboard!
Wow! 
LionessRacing
Super Anarchist
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."
"
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."
Sail4beer
Starboard!
Read the article and will check out the vids even though it makes total sense now.
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.
Fuck, I love this place!
Here is an interesting video about hand and power scraping precision machine surfaces.
