Lead Screw Driven Linear rail (double)

grabcad

Recently updated on November 10, 2019, with a 12mm rod version for enhanced rigidity (essential for cantilever design). Previous update on March 15, 2018, introduced a version based on the 2040 rail featuring a slider capable of holding 2020. The initial screw-driven rail suits perfectly as two rails per side of a 3D printer, providing accurate up-and-down movement but lacking lateral support. To address this issue and explore cantilever designs, the rail was revised to include an additional linear rod, widening and strengthening the linear screw. This modified implementation will be integrated into a revamped cantilever 3D printer design. All printed components attach to the 1010 rail that necessitates grooves for connection (won't fit on smooth 1010 extrusion). Due to varying 3D printers, you may need to adjust scaling. The connection is robust and secure. A hammer might be required to remove it. Required materials can be found on Amazon, but AliExpress alternatives may be available at lower costs. These items include: Flexible Shaft Couplings (5mm to 8mm), 8 mm x 406 mm linear motion rod, micro switches, 1010 72-inch extrusions, NEMA 17 stepper motors (1.7A, 5-pack), SC8UU ball bearing linear motion, hex socket screws (M4 8mm and M3 14mm), lead screws (8mm), and extrusion cuts if needed from 8020.net. Consider opting for a less robust NEMA 17 stepper motor for the Z-axis of a 3D printer, as it typically requires lesser strength. Pre-cut extrusions ordered directly from 8020.net may offer better 90-degree angle cuts. The linear rail incorporates third-party models such as PillowBlock SC8UU, Endstop Microswitch by Makerbot, and Coupler (5mm to 8mm).