We are using four Delrin V-Slot solid wheels they ride down in the V-groove of the V-Slot rail to make the camera movement extremely smooth. The 8mm linear rail shaft is installed between two Self-aligning Pillow Flange Block Bearings that are installed on the top and bottom plate by four M5 screws. And the other one, on an 8mm linear rail shaft on the opposite side of the slider with an open timing belt between them to convert from the stepper motor rotary motion to linear motion. Two pulleys, one on the stepper motor shaft. We are using Openbuilds hardware to build the mechanical structure, the V-slot 2040 linear rail as a guide for the camera to move on. We used Fusion360 to design the camera slider, we chose to use a very well known, easy to find mechanical components that you can buy easily from almost any online or offline store no matter where you live. This project Designed with makeability in a fablab/makerspace/hackerspace in mind. Here comes the A4988 Pololu stepper motor driver role, which gives us five different microstep resolutions (down to 1/16 step) to achieve the maximum moving accuracy and movement smoothness. To control a stepper motor using the Arduino board, we need a translator that takes commands from the Arduino board and translate it to the language that the stepper motor understands. We used a NEMA17 stepper motor as an actuator so we can control how many steps do we need the camera slider to move. which means, you are free to build your actual camera slider with any length up to 10 meters without worrying about the app The mobile app is very robust, inside the app you can set your camera slider length which you are using. I used the “MIT App inventor” tool to make the app which gives us the ability to control a lot of stuff like the slider movement speed, traveling distance, acceleration/deceleration rate and a lot more. Today we will build a motorized camera slider that we can control it wirelessly over Bluetooth from a custom-made android mobile app. In this tutorial, we will go through each step to build your own Bluetooth controlled motorized camera slider. For someone who loves to shoot some random hobbyist videos, it’s somehow expensive to buy a motorized camera slider.
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