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I am trying to model this dagger I found on the internet (source): dagger

So I first concentrated in the top part (the blade itself), and later model the handle. I started out with a cube, and tweaked it until I got to this point:

dagger-1

Now you can see my problem: I have no idea about how to "round" the sides of the blade, so that they are not straight but with a certain curvature.

I tried adding a bezier curve that adjusted to the outline of the blade, and then added a Curve modifier, but it seemed to bend only one part of the blade.

Of course I could just Loop Cut and Slide, and scale it up a bit. However I'm looking for a more precise way to do it. I'm pretty new to Blender and any advice on how to model the blade is more than welcome.

Thanks.

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One approach would be in Edit Mode add a loop cut in the middle CTRL+R and delete the vertices on one side so you are working with half of the blade.

Delete Half

Add a Mirror Modifier and check "Clipping".

Add Mirror Modifier

Add some loop cuts from top to bottom CTRL+R and scroll the mouse wheel to increase the number of loop cuts then Right Mouse click to complete. I used 12 in this example.

12 Loop Cuts

Select "Proportional Editing" and a "Fall Off Type". I choose Spherical. Select vertices in the middle and press "G" and use the mouse wheel to determine how many neighboring vertices are affected (Illustrated by a circle in the viewport)as you drag. Right mouse click to complete.

enter image description here

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  • $\begingroup$ This is exactly what I was looking for. Thanks! $\endgroup$ – Jose Lopez Garcia Oct 2 '16 at 18:31
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In blender there is 2 possibilities to make a curve : - Bezier curve (that is a real curve since you can see the "round" to any scale, there is no point). - A line (that is a finite number of point), that will seems "round" in zom out but that you will see the edge is zoom in.

Note : you can use bezier curve at first and then transform is in a line with point.

In your case (that is beginner modeling) the best is loop cut. I advised you to read some car modeling tutorial, you will understand how to model complex objects that have straigt line combines with curves.

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I am not 100% sure what you are asking but if you are trying to put a split down the middle and the move it out so it bends the flat face. CTRL+r will let you do a loop cut and you can do this down the center of the mesh.

enter image description here

If this isn't exactly what you are looking for then please explain alittle more and I will be happy to help if I can.

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You can use the loop cut and slide tool (found in the tools tab in edit mode) to add more polygons to your mesh and them move them into a more rounded shape, curves can't really be used as edges in 3d programs (as far as I know) so the rounded edge of the dagger that you're copying is just small straight lines arranged into a curve

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