Surface modeling the knife blade in knifemaker style

Murat Vishnyakov

15 Dec, 2018 07:55 AM

Тhe correct geometry modeling is vital when you design a real knife. There are many ways to model the knives and similar cutting objects such as a swords, sabres, and .... ships! So the better way to model a knife is surface modeling.
In this tutorial, I'll show you how to draw a kitchen knife blade. I made this knife many years ago and this knife was used in kitchen for years and very popular in my family.

1. Step 1:

   

   
   

   First of all, we need a drawing, sketch, photo or imagination to start

2. Step 2:

   

   In this case, modeling depends on blade design. The blade contains two type of grind - holow and flat. So we can drive a contour of the flat part and extrude a simple solid body.

   
   

   

   

   
   

   
   

   
   

   
   

   
   

   
   

3. Step 3:

   

   I extruded surface to 0.3 mm. Why exactly this size? Because it's real size and when you are grinding a real knife, you do not sharpen the knife until it is ready. 0.3 mm near a blade edge is a good thickness if you have a good steel. The knife of this thickness will work perfectly.

4. Step 4:

   

   Just extrude surface

5. Step 5:

   

   Use a 3d spline and tangent snap from solid

6. Step 6:

   

   Now, you have everything for your first surface

7. Step 7:

   

   

   
   

   Now time for virtual sharping. Use the one rail and contour of blade edge

   
   

8. Step 8:

   

   Mirroing the first surface

9. Step 9:

   

   Use the previous surface from step 4 and cut this surface by two others.

10. Step 10:

    

    Fill empty triangle

11. Step 11:

    

    Сreate a new surface using existing

12. Step 12:

    

    Repeat previous step

13. Step 13:

    

    Now is the time to combine surfaces into a solid

14. Step 14:

    

    And combine two solids into one. Knife blade ready!