I already have a segmented T9–T11 spine and need it re-worked into a single, print-ready mid-sagittal STL for a scientific study. The brief is highly specific: • Retain bone—including pedicles—plus dura/dural sac with a hollow CSF cavity, and the surrounding epidural fat. • Strip out every trace of gray and white matter. • Merge everything into one manifold, watertight body that a slicer will accept without repair. The model must incorporate a removable guidance insert. That insert has to let a real Medtronic InterStim lead (Ø 1.27 mm) and an NDI sensor (Ø 1.00 mm) slide in from the cut face, travel epidurally from either the T9 or T11 pedicle corridor, and seat at T10 in a small, positive detent. Smooth, predictable motion is essential—no 90° turns and a minimum bend radius of 30–40 mm throughout the channel. To make benchtop testing easier, build an integrated base with two M3 mounting holes (spaced logically for typical breadboard setups). Finish everything as a single STL file; no multipart exports or assemblies. A clean, manifold mesh will be part of the acceptance check along with a test fit of dummy pins matching the lead and sensor diameters. If you’re comfortable refining anatomical meshes and can nail the tolerance stack-up for that guidance channel, I’d like to work with you.