Introduction 

It's time to gear up and get focused! This parametric focus ring allows you to easily create and 3d print the exact size of ring you need for your videography follow focus needs. 

I created this in combination with my Wireless Follow Focus system (Soon to be released too).

Featured Filaments 

Bambu Black TPU 95A HF

Customizing

The print profile provided is just a sample ring that'll fit a lens with a 73mm outside diameter. Clicking on Customize allows you to customize a number of parameters though to best fit your needs. 

Within you'll find a number of settings. 

Gear Module: .8, standard for focus rings, but you can change if needed.

Gear PressureAngle: Again, standard for focus rings, but you can change if needed

Gear Thickness: The overall thickness of the gear

Lens OD: This is the Outside diameter of the lens you want to fit the ring on. 

Buffer: This is the space between the OD and the base of the teeth, roughly speaking. 

In theory, all you should really need to adjust is the Lens OD and possibly the thickness!