In this project, I’ll show you how to make a simple motorized turntable for 3D scanning. It has three main parts: a fixed top plate for placing the object, a rotating middle plate powered by a stepper motor, and a base that holds all the components. The top and base plates are connected and stay in place, while the middle plate rotates independently.

To ensure smooth rotation, I’ve added bearings that help the middle plate move more easily. For scanning, I used an iOS app, but you can choose any software. The goal is to show you how to build this turntable step by step.

This page contains only 3D parts, for full project details please visit this page - https://www.pcbway.com/project/shareproject/How_to_Build_a_Motorized_3D_Scanning_Turntable_for_Your_Phone_20b5a863.html

This project consists of three main 3D-printed parts. The first part is the base, which includes three bearing slots, a stepper motor mount, three mounting leg slots on the sides, and a slot for a power switch.

The second part is the gear plate. It has a bearing slot in the center and is the only moving part responsible for rotation. On its side, there is a mounting point for attaching a phone holder.

The third part is the top plate, where the object to be scanned is placed. This piece is fixed directly from its center to the base plate, ensuring that both remain completely stationary.

Additionally, the project includes a small gear that attaches to the stepper motor, three pins to secure the bearings, and three mounting legs. There are also extension arms and a holder plate for the phone.

If you don’t have a 3D printer, you can use PCBWay’s 3D printing service to get these parts. The STL files are available for free.

On the hardware side, four 608 ZZ bearings are needed to ensure smoother rotation. A few bolts and nuts are required to secure the stepper motor and phone holder. Lastly, a popular hobby stepper motor will be used.