This page describes work accomplished on the new TMRC layout during
the month of December 1997, as taken from the descriptions posted to
the club mailing list.
- December 2
Tim McNerney worked on track at the West end of P-yard while John Purbrick
added more ballast and worked on track in the 105th street area a few feet
east of P-yard.
John McNamara and Alvar Saenz-Otero secured the additional 2x8s and
bridging that Alvar had installed in the tower this morning. The tower
floor will be a six foot diameter circle of 3/4 inch plywood supported by
2x8s on one foot centers. John, Alvar, and Kevin Burleigh constructed three
30x38 inch panels which were added between the legs of the tower to provide
dimensional stability for the legs and to provide a means of anchoring the
tower to the floor. With the assistance of Jeff Birkner, the tower was
positioned in its proper location and secured to the floor with concrete
anchors. This will provide the basis for subsequent construction of the
tower superstructure and for the turning loops that will provide Phase 1
- December 9
Last Saturday, Jeff, James, and Howard Gorin installed the 3/4 inch plywood
floor in the new tower. It looks great! The support structure for the tower
will be surrounded by track loops whose inner diameter is 6 feet
(circumference 18.8 feet). The four corners of the tower support structure
will provide support points for the loops - one every 4.7 feet. This
evening, John Purbrick and John McNamara began work to add four additional
support points for the loops, cutting the support distances to 2.3 feet on
During the second half of the evening, John P devoted his attention to
track work (yet another switch), while John M, Jeff, and James began
enclosing one of the columns near the middle of the room. This enclosure
will not only hide an ugly drain pipe, it will also provide support for a
cable tray coming from the System and will provide a path for cables to
drop from the overhead cable tray to layout level.
Mike Newman worked on upgrading our computers to make them more compatible
with the NetPhone system his company is donating.
- December 16
John Purbrick worked on switches and Jeff Birkner painted the column
enclosure that he, James Knight, and Alvar Saenz-Otero constructed on
Saturday. This enclosure hides an ugly pipe beside one of the columns near
the center of the room, provides a support point for the cable tray coming
over from The System, and provides an out-of-sight cable route to get
cables down from the tray to under the layout. Saturday's work included
benchwork construction for the first of two loops around the tower. These
loops will provide initial loop-to-loop layout operation.
Here is a scanned draft copy of the layout plan.
- December 23
There were no regular Tuesday evening work sessions during the winter break.
Tech Model Railroad Club of
MIT Room N52-118
265 Massachusetts Avenue
Cambridge, MA 02139
+1 617 253-3269
x3-3269 (on campus)
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