# CNC / Plasma Setup Sheet — Tunable Snare Frame Array ## Plasma Cutter Setup (Hypertherm 45XP or similar) | Setting | Value | |---------|-------| | Material | Cold-rolled steel (CRS) | | 1.0 mm stock amperage | 25–30 A | | 1.5 mm stock amperage | 35–40 A | | Cut speed 1.0 mm | 60–70 IPM | | Cut speed 1.5 mm | 45–55 IPM | | Kerf allowance | 1.5 mm (add 0.75 mm each side of cut line) | | Air pressure | 65–70 PSI | | Tip | Fine-cut consumable set | **DXF Setup**: Load `drawings/frame_flat_blank.dxf` into Hypertherm CAM or SheetCam. Assign cut layer to `CUT`; verify all circle cut-outs and slot holes are on cut layer. Run toolpath simulation before cutting. ## Slip-Roll Setup (Jet R-3 or Di-Acro 12") | Shell | Target OD | Starting Roll Gap | |-------|-----------|------------------| | Shell C | 152 mm | ~180 mm gap setting | | Shell B | 203 mm | ~230 mm gap setting | | Shell A | 254 mm | ~280 mm gap setting | **Process**: Feed blank narrow edge first (60/50/40 mm edge = shell height). Roll at mid-pressure; re-check OD with calipers after each pass. Adjust bottom roll pinch to tighten or loosen radius. Final pass should overshoot ~2 mm; butt edges together and tack-weld to maintain OD. ## Brake Press Setup | Bend | Part | Die | Punch | Stroke | |------|------|-----|-------|--------| | FRM-B01 | Mounting frame top flange | V-die 8mm | Standard | 90° | | FRM-B02 | Mounting frame bottom flange | V-die 8mm | Standard | 90° | | LUG-EAR | Lug ear base tab | V-die 8mm | Standard | 90° | **Note**: Brake bends in 1.5 mm CRS. Die opening should be 6–8× material thickness = 9–12 mm V-die. Use 8 mm V-die if available.