OpenBuilds Plastic V-Groove Pulley Wheel with 625ZZ Bearing The OpenBuilds Plastic V-Groove Wheel Pulley with Bearing is designed for smooth, stable, and precise linear motion in 3D printers, CNC machines, and various DIY motion systems. Made from high-quality POM plastic paired with a durable 625ZZ steel bearing, this pulley ensures long-term performance with minimal friction and wear. Whether you're upgrading an existing machine or assembling a new one, this wheel delivers reliable and consistent motion on V-slot rails. Engineered to work efficiently in temperatures ranging from –40°C to 100°C, it maintains structural integrity even during extended operation. The lightweight construction, combined with stainless-steel bearing support, makes it a go-to choice for makers, hobbyists, and professionals working on 3D printing or precision mechanical projects. Features: High-quality POM plastic wheel paired with a 625ZZ stainless-steel bearing for smooth and low-friction movement. Designed with a V-groove profile, making it perfect for V-slot extrusions and linear motion assemblies. Suitable for continuous use in harsh conditions, with an operating temperature range of –40°C to 100°C. Provides stable, noise-free performance ideal for 3D printers, CNC machines, and robotic mechanisms. Compact and lightweight design that ensures easy installation and reliable long-term operation.

OpenBuilds V-Slot/C-Beam Wheel Kit The OpenBuilds V-Slot/C-Beam Wheel Kit is the perfect solution for anyone building or upgrading a linear motion system. This essential kit provides all the components needed to create a single, high-performance rolling carriage on V-Slot or C-Beam aluminum extrusion. At its heart is the durable Delrin Mini V Wheel, known for its low friction and quiet operation, which houses a precision 625ZZ bearing to ensure extremely smooth and reliable movement. Paired with the low-profile mounting bolt, eccentric spacer (which appears to be the aluminum component), shim, and self-locking nut, this kit delivers a strong, adjustable, and wobble-free solution for your 3D printer, CNC router, plasma cutter, or custom robotic project. Simply combine multiple kits to create a full carriage assembly. Features: Features a black, wear-resistant Delrin (acetal) Mini V Wheel for long life and quiet operation. Equipped with a precision 625ZZ deep groove ball bearing for low friction and high speed capability. Comes with all necessary components for installation: low-profile bolt, spacer, shims, and locking nut. Perfectly designed to fit and run smoothly within OpenBuilds V-Slot and C-Beam profiles. Simple kit structure allows for quick and straightforward mounting.

Single Start 8mm Copper Nut The Single Start 8mm Copper Nut is a precision-machined brass motion component designed to deliver smooth, accurate, and reliable linear movement in 3D printers, CNC machines, and custom automation setups. Built with an 8mm internal thread and a single-start design, it ensures consistent travel per rotation when paired with an 8mm lead screw. The durable copper alloy body offers excellent wear resistance, low friction, and long operational life, making it ideal for high-precision motion control systems. Whether you’re upgrading a 3D printer, building a CNC platform, or working on robotics and mechanical automation, this single-start copper nut provides the stability and performance you need. Its corrosion-resistant construction, easy installation, and compatibility with stepper-driven linear assemblies make it a dependable choice for makers, engineers, and DIY builders. Features: Made from high-quality copper alloy for superior strength, smooth operation, and long-term durability. Single-start 8mm threaded design ensures controlled, precise, and consistent linear movement. Perfectly compatible with 8mm lead screws used in 3D printers, CNC routers, robotics, and linear motion systems. Low-friction material enables quieter operation and reduces wear over time. Corrosion-resistant construction maintains accuracy even under continuous load. Easy to install and ideal for stepper motor–driven guide rails and compact motion assemblies.

SmartElex 10A 2-Channel 5V Relay Module The SmartElex 5V Relay Module (2-Channel, 10A) is a reliable and safe switching module designed for controlling both AC and DC loads in automation, DIY, and industrial projects. It features optocoupler isolation, providing excellent protection for your microcontroller while ensuring stable and interference-free operation. With low-level triggering and support for 3.3V and 5V logic, it’s perfectly compatible with popular platforms like Arduino, Raspberry Pi, AVR, and PIC microcontrollers. Built for efficiency and durability, this 5V relay module can handle up to 250V AC or 30V DC loads at 10A per channel, making it ideal for home automation, smart devices, and electrical control systems. It also includes dual LED indicators for easy status monitoring, diode current protection, and a quick response time - all within a compact, easy-to-mount design. Features: Dual-channel relay module rated for 5V input and 10A output. Supports both AC (250V) and DC (30V) load control. Optocoupler isolation for circuit protection and noise immunity. Works with 3.3V and 5V logic signals for broad microcontroller compatibility. Dual LED indicators for real-time relay status. Back EMF and diode current protection ensure stable operation. Easy to mount with four installation holes and compact layout.