Linear Rail Z Axis Mod for Ender 3

thingiverse

This appears to be an instructional guide on upgrading and modifying a 3D printer, specifically the Z-axis assembly. Here's a breakdown of the text: **Step-by-Step Instructions** 1. **Drill Holes**: Drill holes marked "C" with a 3mm or 1/8" drill bit. 2. **Limit Switch Adapter**: Replace the original limit switch adapter with a new one, which moves the limit switch out 9.25mm. 3. **Disassembly**: Unscrew and disassemble the printer to access various components. 4. **Assembly**: Reassemble the printer, paying attention to the order of assembly to avoid mistakes. **Adjustments** 5. **Post Squaring**: Loosen the bottom two screws and top two screws on the left side, then loosen and tighten the 3 T-Nuts on the right X gantry plate. 6. **Post Spread**: Move the gantry to the top of travel and loosen all four top screws only, then tighten. **Parts List** The guide includes a list of parts needed for the upgrade, including: * Rails (2 x 350mm mgn12 Linear Rails with mgn12H blocks) * Hex Socket Cap Screws (24 x M3x8mm) * T-Nuts (24 x M3) * Left Side components (4 x M3x6mm screws, etc.) * Right Side components (4 x M3x6mm screws, etc.) * Limit Switch Adapter (printed Z Axes Limit Switch Adapter) **Revision History** The guide includes a revision history, which notes changes to the limit switch adapter design over time. **Additional Note** A DXF file of the drill plate is included for users who want to cut new plates.