How to create razor wire I am trying to create fences with razor wires on them, as to be seen here: 


I modeled it as a straight wire first, adding the blades in an array and then combined the cylinder and the blades to one object. But when I try to deform it with the screw modifier it get's too distorted. I also didn't get any usable results by trying to start off with a coil already and using particles, for example. 

If anyone has an idea to solve this, it would be highly appreciated.

Thanks for reading.
Model a single segment of the wire and razor.



Create a curve object with the spiral shape you need (use the Add Curve: Extra Objects addon to create spirals) 



Add an array modifier to the wire/razor object 



and then add a curve modifier that uses the spiraled curve as object for the array. Then set the array modifier to use the curve. 



The original object and the curve remain editable, so you can shape them to fit your needs.

Here's the example file: