SAB (Still Air Box) threaded arm hole
thingiverse
This can be used to seal off arm holes of a Still Air Box. The arm hole itself measures 155mm or roughly six inches, leaving ample space to eliminate any piston effect. A small indentation is present inside the cap, allowing for the application of caulk to ensure a tight seal when closed. However, it's not strictly necessary. If using glue or caulk to secure the base in place, the fastener can be omitted. Nevertheless, it facilitates easier installation. A single printed piece can serve as a temporary hold-down until the glue dries. A template object is included for marking the hole that needs to be cut out.
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