Astrophotography adapter: T2 (m42 thread) to 2inches (50.8mm) with 48mm filter thread and DSLR support

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UPDATE4: Included SCAD source files for users to modify. Note that "threads.scad" is a dependency requiring placement in the same folder as other files. Cleanup will be performed at a later time. UPDATE3: Revised DSLR internal taper model, extending it from male thread to female thread instead of 45 degrees. This modification enhances stability against compression during telescope installation without compromising field of view. UPDATE2: Added model for attaching DSLRs using the m42 thread. Walls have been thickened by 2mm and a tapered section has been reinforced for added stability and robustness. Male thread is 5mm long, with an extension of 22mm. UPDATE1: Revised threads to a pitch of 0.75mm from 1mm. Female thread and outer diameter now have an offset, ensuring near-perfect fit (excluding print failures). Model has been downsized for greater compactness. The squared version is preferred. This adapter is primarily designed for holding a 48mm filter in front of ZWO cameras featuring m42 T-threads and 2-inch outer diameters. It is not intended to support the weight of DSLRs. M42 male threads are 2mm high, while M48 female threads are also 2mm high. A tapered section measures 3mm in height. A "squared" version replaces the tapered section with a 1mm thick flat and square section, potentially offering enhanced stability but requiring support usage. Alternatively, the other version overhangs at 60 degrees, which may work without supports. Testing has been conducted using PETG filament with 0.1mm layers. Effects of using this adapter in freezing temperatures or cold, damp nights are unknown. *DISCLAIMER* Not responsible for equipment damage resulting from improper use. Please test carefully with high-value cameras and filters.