Adjustable Aluminum Projector Mount

Adjustable aluminum projector mount for precise alignment of short-throw projectors in behavioral arenas. ## Description This mount was designed for use with another portfolio project: the [Omniroute Maze System](https://www.cadcrowd.com/3d-models/omniroute-maze-system). The mount provides independent height and yaw adjustment to align a short-throw projector for visual cue delivery on the Omniroute maze. A horizontal 80/20 1020 boom, attached to ceiling strut channels, connects to a vertical 80/20 1020 upright via a pair of 80/20 angle plates. Height is set by loosening the angle-plate fasteners, sliding the upright along the boom, then retightening. At the projector end, a waterjet-cut three-plate yaw assembly provides ±30° rotation. The frame-mount plate carries a pivot plate with an arc slot and degree markings. The projector-interface plate clamps to the pivot assembly with three 1/4-20 wing-head thumb screws for toolless, secure, repeatable yaw adjustment. The projector-interface plate is drilled for the Mi 4K Laser Projector. ## Role and Contributions - Conceived and developed all CAD models and assemblies - Integrated with Omniroute system and maintained in routine use ## Key Specs - **Adjustments:** independent yaw via 1/4-20 wing-head thumb screws over ±30°; vertical adjustment along an 80/20 1020 T-slot rail - **Mounting interface:** projector-interface plate drilled for Mi 4K Laser Projector; can be re-patterned for other models - **Installation:** standard hand tools; toolless yaw; secure, repeatable adjustment ## Materials and Fabrication - **Plates:** waterjet-cut 1/4 in 6061 aluminum with tapped holes - **Rails:** 80/20 1020 T-slot extrusion (upright and boom) - **Hardware:** 1/4-20 stainless fasteners with roll-in T-nuts; two 80/20 angle plates (4151); three 1/4-20 wing-head thumb screws ## Deployment and Status - **Development:** completed, May 2022–Oct 2023 - **Deployment:** NC4 Lab, University of British Columbia (3 studies) - **Status:** active, Oct 2023–present, NC4 Lab ## Release - **CAD:** select STEP files available in portfolio (see 3D Model Files) - **On request:** additional design files - **Related portfolio entry:** [Omniroute Maze System](https://www.cadcrowd.com/3d-models/omniroute-maze-system) ## Licensing - **Hardware:** CERN-OHL-W v2.0 - **Documentation:** CC BY 4.0 ## References For additional details, see the preprint methods article for the Omniroute system, which featured this component: - Lester, A. W., Mombeini, A. G., & Madhav, M. S. (2025). [The Omniroute maze: a novel rodent navigation apparatus that integrates dynamically configurable routes, sensory cues, and automated reward delivery](https://www.biorxiv.org/content/10.1101/2025.09.01.672969v1). bioRxiv. ## Included files *Attached on this page.* ### Image Files - **render_1.png:** three-quarter view (rear, right, top) render of projector mount with projector - **render_2.png:** right view render of projector mount with projector - **render_3.png:** exploded three-quarter view (rear, right, top) render of projector mount with projector - **photo_1.png:** in-rig close-up photo of one installed projector mount - **photo_2.png:** in-rig photo of four installed projector mounts in NC4 Lab Omniroute system ### 3D Model Files - **projector_mount_TOP_ASSY.step:** top-level assembly of adjustable aluminum projector mount for 1020 rail - **projector_mount_SUB_pivot.step:** pivot subassembly with yaw plate and slotted clamp hardware