Creating Affordable Follow Focus Gears Using a 3D Printer | CineD
DIY Motorised Follow Focus for your camera. - YouTube
Make a Simple DIY Follow Focus for $6 | PetaPixel
STL file Follow focus, Matte Box body adapter 15mm rods・3D printable model to download・Cults
Custom Follow Focus Gear for any lens
Hardware Store Follow Focus | Hackaday
DIY perfect, seamless Lens Gears for Follow Focus - YouTube
DIY A/B Hard Stops for Follow Focus | CheesyCam
Amazon.com : SmallRig Mini Follow Focus with A/B Stops & 15mm Rod Clamp and Snap-on Gear Ring Belt for DLSRs and Mirrorless Cameras, Fits Different Diameter Lenses Up to 114mm - 3010 :
Canon 7D Tips: DIY Follow Focus Ring for Video/Stills – photoframd.com
Video: DIY macro photography with a $20 microscope lens and 3D printed adapter: Digital Photography Review