Gear coupler and spring loaded build table

Just a few random things I've been working on trying to get this whole thing working.  First is a coupler that I turned and drilled on the lathe so that the gear slides on one end, and the motor shaft into the other.  Add a set screw and you're good to go!  Second is the spring loaded table I just put together.  I saw the idea somewhere online and it noted that the table had saved his extruder head several times after accidental crashes.  I thinks that's worth the $2 cost of all the materials.