ATHARVA KHARWADKAR
(PROJECT)

Computer Vision Arcade Machine

Computer Vision Arcade Machine

PROJECT OVERVIEW

Development of a mechanically complex, computer vision–enabled arcade system integrating precision mechanisms, embedded hardware, and optimized prototyping workflows.

KEY HIGHLIGHTS

My Favorite Mechanism

For me, producing the rack and pinion tray dispenser was most interesting. It required a thorough analysis of the interaction between the teeth of the gear and the teeth attached to the tray. This included inspecting the geometry of each, and the ability for the PLA material to withstand the torque provided by the motor. This mechanism works through a DC motor attached to a custom 3D-printed gear placed at the exact coordinates that would cause it to fully interact with the gear teeth of the tray, driving it forwards or backwards as necessary. It's simple, but that's why I love it.

Ease of Use

In terms of accessibility, creating the tray required an iterative design process to find an acceptable solution via rapid-prototyping. I also think it was smart to program the wheel to return to its proper starting position to minimize human intervention with the machine.

Mechanical Design

Led mechanical design of a portable tabling machine, including chassis layout, access panels, and internal mounting for electronics. Designed for easy transport, maintenance access, and reliable assembly.

CAD & Prototyping

Created CAD models for the enclosure, door system, prize wheel, and flyer dispensing mechanism. Iterated across multiple prototypes to resolve tolerance issues, print failures, and assembly constraints.

Manufacturing & Materials

Selected PLA for structural panels and PETG for load-bearing and moving components. Optimized print orientation and tolerances to reduce cracking, warping, and reprints.

Mechanisms

Designed and implemented a rack-and-pinion flyer dispensing system and motor-driven prize wheel, balancing reliability, simplicity, and space constraints.

Integration & Testing

Worked closely with electrical and software teams to integrate motors, wiring paths, camera placement, and emergency shutoff features. Supported mechanical troubleshooting during system testing and demos.

PROJECT GALLERY

Computer Vision Arcade Machine gallery image 1
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