AnyCubic Mega Zero Y-Axis Linear Rail Upgrade

prusaprinters

<p>This is a remix of: <a href="https://www.thingiverse.com/thing:4903945">https://www.thingiverse.com/thing:4903945</a> </p><p>This remix uses only 2x MGN12H carriage blocks instead of 3 as I found 3 was difficult to get good alignment (I think my bed bracket is slightly warped). I've also modified the design to be beefier and allow the use of M4 Heatset inserts.</p><p>This mod uses 2x MGN12 with 2x MGN12H carriage blocks to replace the existing Y-Axis linear rods on the Anycubic Mega Zero. The mod reuses all existing factory M4 nuts and mount locations to preserve bed height. </p><p>You do not need to support the MGN12 rails. They are plenty stiff. Do not attempt to use MGN9 C/H. You'll be 3mm too short in the Z direction and the MGN9 rails are not as stiff and will require support.</p><p>The mounting spacers go under the MGN12 rail mounts inside the 4020 extrusion to add additional support. </p><p> </p><p>NOTES: </p><ul><li>Please use good quality knurled Heatset inserts like these.</li><li>I recommend printing these in ABS+ (eg from eSun) for best results</li><li>The instruction from foureight84 are essentially the same for this remix</li></ul><p> </p><p><strong>BOM</strong>:<br/>(20) M3x8mm Hex Cap Screws:<br/>      (8) for MGN12 Rail Mounts<br/>      (12) for attaching the y-carriage adapter to MGN12H blocks.<br/>(8) M3 Nylock nuts for MGN12 Rail Mounts<br/>(2) 400mm MGN12 Rails<br/>(2) MGN12H Carriage Blocks<br/>(12) M4 Brass Heatset Inserts</p><p>Reuse M4 nuts on the y-carriage and linear rod mount.</p><p><strong>Parts to Print</strong>:<br/>(2) Linear Rail Front Y-Axis.stl<br/>(2) Linear Rail Back Y-Axis.stl<br/>(1) Linear_Rail_- Left - with_Heated_Inserts.stl<br/>(1) Linear_Rail_Right-Dual_Y-Carriage_Adapter_with_Heated_Inserts.stl<br/>(8) Y-axis Mount Spacer v8.stl</p><p> </p>