1pcs Linear Rail Guide Ballscrew SFU1605 with Square Linear Rails with NEMA17 Stepper Motor, 100mm Effective Stroke Length for DIY CNC Router Parts X Y Z Linear Stage Actuator(Size:100mm)

1pc Pack: Linear Rail Guide SFU1605 with Square Rails + NEMA17 Stepper Motor - 100mm Travel DIY CNC X/Y/Z Linear Stage Actuator
✔️ 1pc Pack: Includes SFU1605 ballscrew (16x5), square rails, and NEMA17 motor for ready-to-run DIY CNC router projects

This compact 1-piece linear stage bundles a SFU1605 ballscrew with square rails and a NEMA17 stepper motor, delivering precise 100 mm travel for DIY CNC routers and other precise motion tasks. Ideal for mounting as an X/Y/Z axis stage on DIY machines, this handy setup supports reliable repeatability and straightforward integration into hobbyist projects.

✅ Material: Metal construction with fine workmanship for stable performance and high work efficiency.
✅ Accuracy and capacity: Repeat positioning accuracy ±0.03 mm; horizontal load up to 30 kg; vertical load up to 15 kg.
✅ Motion and dimensions: Speed 0-100 mm/min; effective travel 100 mm; total length 265 mm.
✅ Ballscrew details: SFU1605 (diameter 16 mm, pitch 5 mm); lead 5 mm per turn.
✅ Moving block: 4 x M4 threaded holes for mounting the workpiece.
✅ Package contents: 1x Linear Stage Actuator with NEMA17 motor; 1x stepper motor cable.
✅ Motor and spec: Step angle 1.8 degrees; flange size 42 mm; length 47 mm; holding torque 1.2 Nm; current 1.5 A; resistance 0.8 ohm; inductance 2.4 mH; rotor inertia 87.3 g cm2.
✅ Weight: About 1415 g.

Effective Travel Length: 100 mm
Total length: 265 mm
Ball screw: SFU1605 (16 mm dia, 5 mm pitch)
Lead: 5 mm per turn
Moving block: 4x M4 threaded holes
Weight: ~1415 g

💡 How can I ensure precise alignment and repeatability when using a SFU1605 ballscrew with a NEMA17 stepper on a 100 mm travel X/Y/Z linear stage in a DIY CNC router, including mounting, coupling, backlash control, drive settings, and calibration steps to achieve ±0.03 mm repeatability?

Short answer: Proper assembly, correct drive settings, and consistent calibration are essential. Here are a few handy guidelines:

• Ensure rails and base are square and parallel; secure the moving block using its four M4 holes and verify alignment with a dial indicator or square.
• Use a rigid coupling between the motor and the ballscrew; set the driver current to the specified 1.5 A and enable clean, microstep-driven motion to minimize ripple and missed steps.
• Control backlash by applying appropriate preload on the nut or selecting anti-backlash mounting methods; re-check after assembly and after any adjustments.
• Keep within the rated loads (horizontal up to 30 kg, vertical up to 15 kg) and design supports to prevent sag or wobble during movement.