Screw Driven rail

**Update v51 of f3d the EndCap screw hole slightly enlarged to better fit the 8mm lead screw **Update v34 of f3d has additional lead screw with with Nut for better motion -ScrewRodSlider (5/16 screw) -LeadScrewSlider 8mm lead screw **Update: latest f3d file (v20) has bigger holes to properly fit the M4 Hex socket screws As a continuation on the the Generic Linear Actuator this screw rail uses similar connectors but is screw driven as opposed to belt driven. A linear rail like this one would be more suitable slower motion (like a Z-axis). This design comes both with a built-in End-stop and without. All printed component clip onto the 1010 rail that REQUIRES the grooves to connect (this won't hold on smooth 1010 extrusion). Due to variances in 3D printers you may need to tweak the scale. The connection is strong. Once on, you'll need a hammer to get it off. (see attached images holding weights) following components can all be found on Amazon.com but if you have time and patience you can possibly source many from AlieExpress for less. Flexible Shaft Couplings 5mm to 8mm: http://amzn.to/2yYJ9TJ 2-Pack - Linear Motion Rod 8 mm x 406mm Shaft: http://amzn.to/2CF9d8K end-stops: http://amzn.to/2CFc3uf 1010 72 inches (8020 inc.): http://amzn.to/2kWo87p threaded rod 5/16-18: http://amzn.to/2kTi92Y nut (100 pack): http://amzn.to/2BJd6dn nema 17 1.7A (5 pack): http://amzn.to/2BLLUuP SCS8UU Linear Motion Ball Bearing: http://amzn.to/2BUD0NW M4 8mm: http://amzn.to/2CMkRyN m3 10mm: http://amzn.to/2CU2zvc square nut: http://amzn.to/2Dp2d0Y Pan head screw (30mm): http://amzn.to/2BfdvmN Should you choose for a 8mm lead screw over a cheaper screw rod, this is the one I use: Lead Screw 8mm: http://amzn.to/2D8pXVY If this setup would be part of the Z-Axis on a 3D printer you can probably opt for a less strong Nema 17 (and cheaper) as the Z-axis tends to need less. Threaded Rod and nuts of course can be found at your local hardware store. If you want the extrusion to be cut to length, I s