Replicator 2X extruder filament oiler/dust filter

This is a dust filter and filament oiler for the Replicator 2X as well as the Replicator 2 with updated extrusion head. Works well for solving printing issues with Rep 2X when printing with PLA. The original suggested solution is to print thing #153807 and put oil on the sponge. This is a low profile dual chambered version of the idea with oil in the sponge in upper chamber and dry sponge in lower chamber to catch any excess. Only a thin film of oil is needed, less is more in this case. Front door is snap-fit for easy cleaning and re-loading of oil.

Update: Minor tweaks to the locking lips and the lid to allow more precise fitting and minimal post-print clean-up