Remote Control - Servo Controlled Power Zoom Mechanism and Bracket - For Sony SELP-18105-G Lens

grabcad

A remote control zoom setup controlled by an Arduino Micro Board features a 3-position rotary switch for zooming in and out, connected via six feet of wiring. The first ring on the lens barrel allows manual zoom adjustment during handheld shooting. This camera is mounted on a motorized pan and tilt system. The setup has been tested with an 1855 lens using an aluminum bracket. Merv plans to create a better version for larger lenses. In his experience, 1.5mm screws are ideal for mounting micro servos, but he used 2mm screws in a recent project due to limited availability in a Step File. In tight spaces, the bottom of the servo is removed to manage wires and grommets efficiently. The servo bracket has been slotted for tensioning purposes. Merv is currently setting up a new Desktop CNC milling machine for machining carbon fiber, plastic, and composite materials, with occasional wood carving. He has developed an alternative method using 6000 series aluminum for the clamp, a milled delrin plastic block for the servo mount, and a modified drive wheel with a 3/4" ID x .250" diameter O-Ring. This method works well and is easier to machine on a lathe. Merv has tested different versions of this setup and shared STEP files for reference. However, he inadvertently uploaded the wrong alternate version initially but later corrected it by adding the correct Step file for the drive wheel as well. This design can be adapted for various power zoom lenses with slide switches, but individual modifications may be necessary based on lens size.