Underwater photography snoot with beam splitter

thingiverse

This is a design for an underwater strobe snoot that uses a beam splitter to align the torch light with the strobe beam, providing an accurate approximation of what the strobe will hit. The design assumes a 40x33mm beam splitter, based on one purchased from Amazon's Khet Beamsplitter Expansion product, which was approximately $5 at the time but is now more expensive. An instructable suggests cutting a rectangle from an old CD case to achieve the same result, although this has not been tried yet. The design is modular: - **Snoot Body**: The primary component of the snoot (snoot_body.stl) - **Strobe Interface**: Included are interfaces for Inon Z240 and Z330 strobes. Other models can be designed with similar functionality, ensuring that the opening aligns directly above the center of the flash tube. Both interfaces connect to the snoot body via a twist-and-lock mechanism (interface_lock.stl), which may require a tool to lock in place (tool.stl) - **Torch**: The current design accommodates a Sola 800/1200 torch, but users can easily create a custom holder for other focus lights by maintaining the basic interface with the snoot body - **Snoot Heads**: Interchangeable parts allow users to adjust the beam width of the snoot (5mm, 10mm, or 15mm). These heads are secured using a twist-and-lock mechanism - **Fiber Head**: Connects a fiber optic cable to the snoot. The cable is held in place by a screw mechanism, offering two locking cap options: smooth and ribbed, with the latter being easier to manipulate - **Fiber Optic Cable**: An 8mm solid core end glow fiber (available on Aliexpress) can be used, with an outer diameter of 10mm. Users may need to redesign the capture ring for different cable diameters - **Fiber Tip**: Optional, this tip provides a more secure grip and focusing mechanism that narrows the beam. Attachment is facilitated by the same screw lock mechanism