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Modular Building System

We are proud to pioneer some of the most significant advances in linear motion being used in the world today! The OpenBuilds V-Slot Modular Building System. OpenBuilds began in 2013 with the simple idea to make an affordable open source system that allows anyone to build anything. Mark Carew designed and developed the first all-in-one modular linear rail that incorporates an internal "V" shaped track paired with self-centering V-Wheels and together they make a endless buildable linear motion system that is smooth, affordable and extraordinarily consistent. Today, V-Slot can be found all over the world from the finest institutions and workshops as well as in machine designs from CNC routers, lasers, 3D printers, linear actuators of all forms, lab equipment as well as camera studios, furniture and the list goes on... We are honored to know of all the businesses that have been started and the dreams that have come true using our system. V-Slot has gone viral because with it you can build anything!

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  • OpenBuilds® Double End Cap  2290 OpenBuilds® Double End Cap  2290
    SALE
    SALE

    Double End Cap

    OpenBuilds®
    $1.59
    $2.49
    Enhance the look and functionality of your V-Slot and C-Beam Linear Rails. This cap neatly covers the bare ends of the rail, providing a polished and professional finish to your Build. Each end cap features a center holes designed for mounting with...
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  • Belt-tensioner Belt-tensioner
    SALE
    SALE

    Belt-tensioner

    OpenBuilds®
    $1.29
    $1.99
    RRP: $1.99
    Maintain optimal performance and precision with this belt tensioner, designed to keep your belt-driven systems operating smoothly. Whether you're working on a CNC machine or other mechanical projects, this tensioner ensures proper belt alignment and...
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  • Adjustable V-Slot Hinge  2245 Adjustable V-Slot Hinge  2245
    SALE
    SALE

    Adjustable V-Slot Hinge

    $3.49
    $4.99
    The Adjustable V-Slot Hinge is a versatile component that opens up new possibilities for creating angled connections in your builds. Perfect for projects that require pivoting or adjustable points, this hinge allows you to customize the geometry of your...
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  • OpenBuilds® V-Slot Gantry Kit - Universal  1197-Set OpenBuilds® V-Slot Gantry Kit - Universal  1197-Set
    SALE
    SALE

    V-Slot Universal Gantry Cart

    OpenBuilds®
    $29.99
    $37.99
    The V-Slot Universal Gantry Cart is engineered with a versatile hole pattern, ensuring perfect wheel alignment for all V-Slot Linear Rail sizes. Its modular design allows compatibility with both Lead Screw and Timing Belt systems, making it the perfect...
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  • OpenBuilds® Delrin Mini V Wheel Kit  495 OpenBuilds® Delrin Mini V Wheel Kit  495
    SALE
    SALE

    Delrin Mini V Wheels

    OpenBuilds®
    $2.99
    $4.49
    Designed for smooth and precise linear motion and light load applications. Made from Delrin, a high-performance plastic known for its low friction and high wear resistance, these wheels ensure durability and reliable performance. Their compact size makes...
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  • OpenBuilds® OpenRail Linear Rail  OpenRail OpenBuilds® OpenRail Linear Rail  OpenRail
    SALE
    SALE

    OpenRail Linear Rail

    OpenBuilds®
    $2.49
    $3.89
    OpenRail® Linear Rail OpenRail® is a aluminum Universal Linear Rail System designed to be used on any V-Slot Linear Rail in conjunction with our selection of OpenRail Gantry Plates and Delrin V Wheels exclusively. Recommended Mounting...
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  • OpenBuilds® Xtreme Mini V Wheel Kit  876 OpenBuilds® Xtreme Mini V Wheel Kit  876
    SALE
    SALE

    Xtreme Mini V Wheels

    OpenBuilds®
    $5.79
    $5.99
    Designed to handle increased loads and forces. Their compact size allows them to fit inside the C-Beam Linear Rail channel and other tight spaces. They offer minimal compression, making them ideal for applications requiring precise movement and accuracy...
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  • V-Slot® V-Slot 20x20 Linear Rail  VSlot20x20LinearRail V-Slot® V-Slot 20x20 Linear Rail  VSlot20x20LinearRail
    SALE
    SALE

    V-Slot 20x20 Linear Rail

    V-Slot®
    $2.49
    $3.29
    V-Slot® Linear Rail V-Slot Linear Rail aluminum extrusion profile is the ultimate solution combining both linear motion and a modular, structural framing system. It's lightweight yet rigid and provides an ultra...
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  • V-Slot® V-Slot 20x40 Linear Rail  VSlot20x40LinearRail V-Slot® V-Slot 20x40 Linear Rail  VSlot20x40LinearRail
    SALE
    SALE

    V-Slot 20x40 Linear Rail

    V-Slot®
    $2.79
    $3.99
    V-Slot® Linear Rail V-Slot Linear Rail aluminum extrusion profile is the ultimate solution combining both linear motion and a modular, structural framing system. It's lightweight yet rigid and provides an ultra...
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  • V-Slot® V-Slot 20x60 Linear Rail  VSlot20x60LinearRail V-Slot® V-Slot 20x60 Linear Rail  VSlot20x60LinearRail
    SALE
    SALE

    V-Slot 20x60 Linear Rail

    V-Slot®
    $3.99
    $4.99
    V-Slot® Linear Rail V-Slot Linear Rail aluminum extrusion profile is the ultimate solution combining both linear motion and a modular, structural framing system. It's lightweight yet rigid and provides an ultra...
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  • V-Slot® V-Slot 20x80 Linear Rail  VSlot20x80LinearRail V-Slot® V-Slot 20x80 Linear Rail  VSlot20x80LinearRail
    SALE
    SALE

    V-Slot 20x80 Linear Rail

    V-Slot®
    $4.99
    $6.99
    V-Slot® Linear Rail V-Slot Linear Rail aluminum extrusion profile is the ultimate solution combining both linear motion and a modular, structural framing system. It's lightweight yet rigid and provides an ultra...
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  • OpenBuilds® V-Slot Gantry Plate - 20mm  935 OpenBuilds® V-Slot Gantry Plate - 20mm  935
    SALE
    SALE

    V-Slot 20mm Gantry Plate

    OpenBuilds®
    $3.99
    $6.29
    This compact version of our V-Slot Gantry Plate is specifically designed for use on the 20mm side of V-Slot Linear Rail, making it an ideal choice for projects that demand both precision and space efficiency. Perfect for belt-driven systems, it delivers...
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