The 5th turn of the spline helix has now been built and added to the structure (see part 4 of the project).  This is the part of the helix that will provide the entry/exit to/from the main level of the layout which is at approximately 48 inches above the floor. This is the first spline helix of the two that I need to build for my layout.  The movie below shows the test that I ran on 13 November running the ATSF Blue Goose passenger train on the down track (inside track) of the spline helix to test for any issues with the track.  No problems were identified.

The movie below shows the same train running on the up track (outside track) of the spline helix.  Once again, the test was to identify any issues with the track.  No problems were encountered.

As I mentioned in my last post, the helix is now in the center of the floor in the train building for ease of construction.  The outside set of threaded rods have been tightened and are at their proper levels. Once the helix table is moved back to its permanent location against the wall, I will level all of the inner treaded rods with their companion on the outside to ensure that the track is as level as possible.  I will also have to cut off the extra length of the threaded rods at some point. After I finish the wiring, I  will also run a train test in DCC mode.  I also have to attach some guards on the outside of the helix to keep any derailments from plunging to the floor.

The next phase of the building project for my railroad will be to begin work on the lower staging area by attaching the spline helix to the tables that were shown in my one my earlier posts plus building the peninsula in the middle of the room where the helix table is currently sitting.  I will also attach the 24 inch brackets for support of the main level.  But that will a whole new story. 

Thanks for everyone's interest.

John