Proxxon Precision Lathe PD 400/CNC-ready vs Sherline 8440 17" CNC Benchtop Lathe System (LinuxCNC)
Technical comparison · Turning (lathe)
Precision Lathe PD 400/CNC-ready and 8440 17" CNC Benchtop Lathe System (LinuxCNC) are two turning (lathe) in a similar class. Choose Precision Lathe PD 400/CNC-ready if price matters more; choose 8440 17" CNC Benchtop Lathe System (LinuxCNC) if swing over bed and distance between centers matters more.
| Parameter |
Precision Lathe PD 400/CNC-ready
Proxxon
F2 · Intermediate
|
8440 17" CNC Benchtop Lathe System (LinuxCNC)
Sherline
F2 · Intermediate
|
|---|---|---|
| Identity | ||
| Use tier | F2 — Intermediate | F2 — Intermediate |
| Price | ||
| Price (€) | ~2600–3100 € | ~2800–3300 € |
| Universal specs | ||
| Dimensions (W×D×H) (cm) | 40 × 90 × 30 cm | 28.6 × 91.4 × 20.3 cm |
| Weight (kg) | 45 kg | 31.4 kg |
| Work area (mm) | — | 430 × 110 mm |
| Power (W) | 870 W | — |
| Voltage (V) | 230 V | 240 V |
| Maximum speed | 2800 rpm | 2800 rpm |
| Declared precision | — | 0.0127 mm |
| Category specs | ||
| Swing over bed (mm) | 85 mm | 90 mm |
| Distance between centers (mm) | 400 mm | 430 mm |
| Ecosystem | ||
| Cloud dependency | No | No |
| Software notes | The machine includes neither a controller nor software: the choice of control ecosystem is entirely up to the user. Proxxon sells the complete CNC kit separately (NO 24 500), which includes a proprietary Windows-compatible control unit via RS-232/USB. Alternatively, the machine is compatible with third-party controllers that handle stepper motors through a standard interface; the axis connections are factory-prepared. Open-source software such as Mach3, LinuxCNC or equivalent solutions has been used successfully by community members, but these are not officially supported configurations by Proxxon. | The system ships with an Ubuntu Linux computer and LinuxCNC preinstalled for 4-axis control, with the driver board and power supply already fitted. The tailstock spindle remains manually controlled. Utilities to convert CAD files or TrueType fonts into G-code are included. |
The differences that matter
- Price: Precision Lathe PD 400/CNC-ready 2850 € vs 8440 17" CNC Benchtop Lathe System (LinuxCNC) 3050 € — Precision Lathe PD 400/CNC-ready wins (+7%)
- Swing over bed: Precision Lathe PD 400/CNC-ready 85 mm vs 8440 17" CNC Benchtop Lathe System (LinuxCNC) 90 mm — 8440 17" CNC Benchtop Lathe System (LinuxCNC) wins (+6%)
- Distance between centers: Precision Lathe PD 400/CNC-ready 400 mm vs 8440 17" CNC Benchtop Lathe System (LinuxCNC) 430 mm — 8440 17" CNC Benchtop Lathe System (LinuxCNC) wins (+8%)
Which one to choose
Choose Precision Lathe PD 400/CNC-ready if…
you value price.
Choose 8440 17" CNC Benchtop Lathe System (LinuxCNC) if…
you value swing over bed and distance between centers.
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