Basic Knife Design
thingiverse
Here's a rough sketch of a basic knife design I came up with, which should give you a good starting point for planning the next one. Please feel free to use this as is or make any necessary modifications to suit your needs.
Download Model from thingiverse
With this file you will be able to print Basic Knife Design with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Basic Knife Design.