1. Part Geometry & Stock Envelope
Machinability Ready
Bounding Box Dimensions (mm)
120 × 80 × 40 mm
Material Selection
2.70 g/cm³
Aluminum 6061-T6
High Machinability (1.0x), Light
Stainless Steel 304
Tough, Corrosion resistant (2.4x)
Brass C360 (Free Cut)
Fastest feed, High mass (0.8x)
Delrin (POM Acetal)
Engineering Plastic (0.6x)
Die-Cast Preform / Near-Net Blank
Post-process critical mating features vs billet hog-out
Critical CNC Machining Features (Die-Cast Cleanup)
9 Features
Bearing Bores (H7)
2
Rigid boring & fine circular interpolation
Threaded Holes (M3-M8)
4
Spot drill, peck drill, rigid synchro tap
Dowel Pin Holes (m6)
2
High-precision reaming for alignment pins
Sealing Faces / O-Ring
1
Fly-cut facing passes for flatness <0.02mm
Tolerance Grade & Surface Finish
1.4x Time Factor
Standard (±0.1 mm)
3.2 µm Ra (Cost Multiplier: 1.0x)
Precision (±0.01 mm)
0.8 µm Ra (Cost Multiplier: 1.4x)
Production Batch Quantity
250 units
Complexity
Estimated Unit Cost
$42.85
Total batch: $10,712.50
Base Machining Time
18.5 min
Tolerance Multiplier: 1.4
Raw Stock Material Mass
1036.8 g
Stock Volume: 384.0 cm³
Surface Finish Required
0.8 µm Ra
Machine: 30 Taper High-Speed Drill/Tap (e.g. Brother Speedio)
Part Geometry & Toolpath Visualizer
Live Wireframe| Raw Material / Preform Blank | $7.83 |
| Spindle Cycle (Machine Shop Rate @ $75/hr) | $32.38 |
| Tooling Consumption & Coolant Wear | $1.85 |
| Fixture Setup & CAM Amortization (Per Part) | $0.80 |
| Total Estimated Part Cost | $42.85 |
; PROGRAM: CNC-PART-RUN
; MATERIAL: ALUMINUM 6061-T6 (DENSITY: 2.70 g/cm3)
; ESTIMATED BASE RUNTIME: 18.5 MIN
G21 G90 G17 G40 G80
(TOOL 01: 50mm Face Mill - Clean Sealing Face)
M06 T01
G00 G54 X-10.0 Y0.0 S4500 M03
G43 H01 Z5.0 M08
G01 Z-0.5 F1200
G01 X130.0 F1800
(TOOL 02: 12mm Reamer - Dowel Pin Holes)
M06 T02
G00 X20.0 Y20.0 S2200 M03
G81 Z-15.0 R2.0 F350
(TOOL 03: 32mm Twin Bore - Bearing Bores H7)
M06 T03
G00 X60.0 Y40.0 S3000 M03
G85 Z-25.0 R2.0 F120
(TOOL 04: M6x1.0 Rigid Synchronous Tap)
M06 T04
G84 Z-12.0 R3.0 F1000 S1000
M09 M05
G28 G91 Z0.
M30
Die-Casting vs Full Machining Trade-Off:
Die-casting excels at creating net outer housings cheaply at volume, but parting line flash, draft angles (typically 1–2°), and shrinkage porosity make as-cast holes unsuitable for bearings or tight sealing faces. CNC post-processing (recommended on 30-taper drill/tap machines like Brother Speedio) cleans up precision features while saving up to 60% compared to billet roughing.
Die-casting excels at creating net outer housings cheaply at volume, but parting line flash, draft angles (typically 1–2°), and shrinkage porosity make as-cast holes unsuitable for bearings or tight sealing faces. CNC post-processing (recommended on 30-taper drill/tap machines like Brother Speedio) cleans up precision features while saving up to 60% compared to billet roughing.