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September '12
This page describes work accomplished on the new TMRC layout during the month of September 2012, as taken from the descriptions posted to the club mailing list.
September 15

No progress reports, but much Progress!

David Lambeth visited and helped out with Activities Midway. He put new member Alex to work planting shrubbery, using precision tools.

David brought a track-cleaning machine, crafted from a damaged Japanese-prototype locomotive. See the dirt on the abrasive pads!
David conferred with Bill regarding the upper level design--here Bill's scheme for a large paper mill. As the diplomats say, there was a "full and frank discussion".
Looking forward to the day when the paper mill becomes operational, John P bought a Bachmann 45-ton switcher as the facility's motive power, with the cute siderods on its trucks.
John M's turn to get Alex involved, here with a crossbuck for John's grade crossing signal (for use at future Activities Midways).
John P fixed Cab Driver 242, at the foot of the tower. It had some kind of processor problem.
Wiring has been done to get the helix functional--trains can run part-way up now.
Three track blocks on the helix are powered by new Block Card 20, which Quentin completed construction on several months ago, and Mike Stunes installed (see April 25).
Yet more Progress by Alex! He made some trees.


September 22

This shows the incorrect display of the helix area. Switch 94 should be a crossover with a connection to Block 114. However, trains run fine.
The operating mechanism for the totally inaccessible Switch 94B, which should be on the diagram but isn't (see above).
New wheels for the small cart. They were very cheap at Harbor Freight.
Tetris is back in service, in all its glory, and getting plenty of use.
This is what was wrong with Tetris. The connector on the computer back panel is RS-232, but it has a non-standard pinout, and the cable attached to it had the normal pattern. That's all that needed fixing.


September 26

We have electrical and controls progress this week. The problems mentioned last week have been resolved, with the help of Tom O'Reilly, the designer of our graphic display. See the new blocks west of Berkmannville, and the connections to Staging.
The opposite end of the display shows the exits from Staging, and also the connection from Block 114 to 202, via Switch 94. This formation makes a wye with the JP cutoff.
Here's the train on the helix which was seen in Block 204 in the first picture. It climbed up from Berkmannville, 3 turns and 3 blocks of track, and an elevation gain of about 14 inches.
This is the new diagram for the east end of Staging, to be used when an operator is setting routes from a cab. It shows the track numbers for NX route selection. and as with the other switching zones, 99 sets turnouts back to states which allow optimum through routes.



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Tech Model Railroad Club of MIT
MIT Room N52-118
265 Massachusetts Avenue
Cambridge, MA 02139

+1 617 253-3269
Email: tmrc-web@mit.edu