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Tips & Tricks January 26, 2008 Installing DCC reverser and circuit breaker boards By Val Danos Installing DCC reverser and circuit breaker boards The PSX1 is a circuit breaker only and does not require as much clearance as the PSXAR. For the PSX1, I used plastruct tubing to mount our circuit boards. (It's available at most hobby shops and I think only comes in white.) I cut 1/4" lengths for each of the four mounting holes (for each board) and used small round headed wood screws with a small washer to mount the cards. These can then be attached to the front of the layout to display the LED's if you like. For the PSXAR auto reverser/circuit breaker, which is different from the two, I got four 1" nylon spacer tubes an 12 nylon washers from Walt's Ace Hardware. But it was not possible to get #4 wood screws that were at least 1 1/2" long, the longest is 1". So, I ended up getting 2 #4-40 threaded rods from The Hobby Bench. Turns out that these rods are used in remote controlled airplanes for something or other. Trouble is the rods come in 12" lengths so I used a bolt cutter to cut 4 3" lengths from the 2 rods. After that it was only necessary to drill four holes through the cross beam on my layout and then in order: 1. Thread a hex nut on one end followed by the nylon washer 2. Insert the rod into the hole through the back 3. Insert nylon washer onto the rod then the 1" nylon spacer 4. Repeat 1 - 3 for the other three holes. 5. Place PSXAR over the rods up against the tubing spacer. 6. Insert a nylon washer ver the rod up against the PSXAR 7. Finish off with another hex nut. This assembly except for the back of the cross beam can be seen on the pic "PSXAR side". The front view shows the four corner hex nuts holding the PSXAR against the spacer tubes shown in the side pic. The spcer tubes are white and the nylon washers are black. [ Home ] [ Ponderosa North Model Railroad Club ] [ Model Rail News] [ Arizona Rail Calendar ] [Tips & Tricks] [ E-mail the webmaster ]