Initial 3D print farm structure and documentation

- Printer profiles folder structure
- Production-ready file organization
- Getting started guide
- Shopping list for spare parts
- README with workflow

printer-profiles/README.md

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+# Printer Profiles
+
+Store slicer profiles here:
+- Bambu Studio configs (.json)
+- PrusaSlicer profiles (.ini)
+- Cura profiles (.curaprofile)
+
+## To Export Profiles
+
+**Bambu Studio:**
+1. Settings → Export
+2. Save as `bambu-a1-[material].json`
+
+**PrusaSlicer:**
+1. File → Export → Export Config
+2. Save as `bambu-a1-[material].ini`
+
+**Cura:**
+1. Settings → Profiles → Export
+2. Save as `bambu-a1-[material].curaprofile`