I have to make the trimmer heads like on the far left using global dimensions where they can resize to any length. I am struggling to finish the design, I'll attach my file to show what mine looks like. Can someone please help me get the final product drawn, or offer me tips on how to finish based on what I have done so far.
Nick,
It's not to your scale but it will give you one way to do it. Using a sketch driven pattern for the teeth will allow the length to change and the teeth to space correctly.
This is a 2016 file.