Keep ALL geometry EXACTLY unchanged. Do NOT crop, pan, zoom, or reframe the composition.

This is a longitudinal cross-section view of a {product_name}, cut along the YZ plane to expose internal structures.

Apply photorealistic PBR materials to visible surfaces and internal cross-sections:
{material_lines}

Cross-section face treatment:
- Cut aluminum faces: show fine machined cross-hatch pattern, slight golden tint from anodization edge
- Cut PEEK faces: warm amber translucent edge, visible subsurface depth
- Internal cavities: shadow depth with ambient occlusion
- Visible springs: chrome wire coils with specular highlights, each turn clearly defined
- Bearing cross-sections: chrome steel races, brass cage visible, precision ball bearing appearance
- Gear teeth: machined steel with fine tooth profile shadows
- Shaft cross-sections: polished chrome steel, mirror-like center

Internal details to enhance:
- Spool chambers with tape winding visible
- Solvent channels and pump cavities
- Motor armature windings (copper color) visible through housing cut
- Force sensor internal strain gauge pattern
- PCB edge with green FR4 and copper trace layers
- Spring coil pitch clearly visible in section

{standard_parts_description}

Environment: Studio lighting with key light from upper-right emphasizing cut face depth. Neutral gradient background, no reflections on background. 8K photorealistic quality.

{negative_constraints}
