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Like this one from Saw V: like this one from Saw V

What primitive shape/s would you start out with? How would you transform the primitive shape/s to give it a nice, smooth, sharp blade on one side without distorting the entire object in a weird way? I tried starting out with a cylinder and then subtracting the top half using a duplicate cylinder and a difference modifier, but I ended up distorting the entire object when I tried to pull the "blade" edges together. I think I need to add lattices to smoothly "sharpen" the edge of the blade.

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closed as too localized by Byte56, Sean Middleditch, Nick Wiggill, Sam Hocevar, michael.bartnett Jan 9 '13 at 7:08

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You are thinking about this in an incredibly odd way. I'm sure blender has a polygon tool and a way to import reference images. Import a reference image for a pendulum and then use primitives where the object is actually a primitive and use a polygon tool to out line the blade and then the edge. Use the move tool to make the edge and just mirror it around an axis. Starting from a primitive isn't necessary or even a good thing. Models are made up from points and triangles or more generically polygons. Using a tool to outline parts of the object as polygons is usually easiest. –  ClassicThunder Dec 6 '12 at 3:43
    
Thanks for the guidance. Yes, reference image does sound like a better idea than this primitive nonsense I have been attempting. –  Micah - ps I love you Dec 6 '12 at 3:47
    
I think I was trying to use Blender like a kid tries to make something out of Play-Doh. –  Micah - ps I love you Dec 6 '12 at 3:50
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No problems things like this take an approach that really isn't encouraged by most modelers UIs. I recommend watching some tutorials even if they don't apply to your situation. Watching how a skilled veteran approaches using Blender as a tool really helped me understand how to model more efficiently. –  ClassicThunder Dec 6 '12 at 4:00
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