Lumen PnP Linear Rail Mod

prusaprinters

<p>This is a minor remix of Stargirl's linear rail mod for the Opulo Lumen PnP machine. &nbsp;This remix doesn't change the final geometry at all, it only makes changes to the assembly hardware, to eliminate self-tapping bolts into plastic parts. &nbsp;The X gantry now uses 4xM5x45 bolts which extend all the way through both sides of the gantry, and the Y gantry now uses 4xM4x10 bolts and 4xM4 nuts. &nbsp;The M3 mounting to the linear rail carriages are unchanged.</p>