Openbuilds eccentric spacer nut

Openbuilds Eccentric Spacer Nut 6mm is a crucial mechanical component in V-Slot and C-Beam linear motion systems, engineered specifically for precisely adjusting the tension of V-Wheels against the aluminum extrusion profiles. Unlike a standard concentric spacer, this nut features an off-center bore, allowing you to fine-tune the wheel assembly position by simply rotating the spacer. Consequently, this mechanism eliminates wheel wobble and slop, guaranteeing high positional accuracy and smooth, quiet movement in CNC machines, 3D printers, and plasma cutters. Furthermore, its robust 6mm height ensures optimal spacing for Mini V-Plates and various Gantry Plate setups. Therefore, using the Openbuilds eccentric spacer ensures your motion system achieves the necessary rigidity and precision for professional results.

Key Features:

• Adjustable Tension Mechanism: The off-center M5 bore allows you to rotate the spacer to adjust the distance between the V-Wheels and the aluminum extrusion, tightening the fit.
• Eliminates Play and Slop: Easily removes unwanted play (slop) between the wheels and the rail, which consequently improves machine accuracy and repeatability.
• Standardized Threading: Features M5 threading, ensuring direct compatibility with standard M5 bolts, V-Wheels, and Gantry Plates used in the Openbuilds ecosystem.
• Durable Material: Constructed from tough aluminum, this eccentric nut provides long-lasting mechanical strength and resilience in demanding motion applications.
• Easy Adjustment: You can quickly adjust the eccentric spacer using a simple 10mm wrench or socket, simplifying machine setup and maintenance.

Technical Specifications:

• Spacer Height: 6 mm (Standard for Mini V-Plate and other Gantry Plate setups)
• Shaft Diameter: 5mm Bore
• Adjustment Range (Eccentricity): ≈ 0.79 mm (Total travel of wheel assembly position)
• Wrench Size Required: 10 mm
• Material: Aluminum\MS

Mechanical Specifications:

• Function: Spacer and adjustable V-Wheel tensioner
• Compatibility: Designed for use with Openbuilds V-Slot, C-Beam, and T-Slot aluminum profiles.
• Finish: Typically silver or black anodized for corrosion resistance.
• Tension Adjustment: Achieved by rotating the outer body relative to the fixed M5 bolt.

Dimensions:

• Outer Diameter: 10 mm
• Internal Hole: 5mm
• Overall Height: 6 mm
• Maximum Wall Thickness: ≈ 4.0 mm

Pinout and Wiring:

• Note: This is a mechanical component and does not have electrical pins or wiring.
• Assembly: The spacer fits between the Gantry Plate and the V-Wheel, secured by an M5 bolt that passes through the wheel bearing and the eccentric bore.
• Tensioning: Use a 10mm wrench on the exterior hex surface to rotate the spacer until the V-Wheel applies optimal pressure against the rail.

Datasheet Reference:

• Download Openbuilds Eccentric Spacer Nut Technical Documentation

Commonly Used in:

• CNC Routers: Providing the adjustable guide mechanism for the gantry axes (X, Y, and Z).
• 3D Printers: Essential for adjusting wheel tension on the linear rails of Cartesian and CoreXY 3D printers.
• Laser Cutters/Engravers: Ensuring the laser head carriage moves smoothly and accurately across the work area.

Applications:

• Gantry Plate Tensioning: Serving as the key adjustable component in Gantry Plates using V-Wheels.
• Frame Stabilization: Helping to stabilize motion components against vibration by ensuring constant contact with the aluminum extrusion.
• Precision Motion Systems: Necessary for any build requiring low backlash and high accuracy in linear movement.

Equivalent Models:

• Various 6mm Height Eccentric Spacers: Many third-party manufacturers produce functionally identical 6mm eccentric spacers for the V-Slot system, often differentiated only by color or material finish.
• Solid Concentric Spacer: This is the opposite of the eccentric type, offering no adjustment, used only where fixed spacing is required.

Package Includes:

• 1 x Openbuilds Eccentric Spacer Nut