When I first built my layout I constructed a large area at a reduced height that allows for the eventual installation of the Richmond River at Cassino. The opening was spanned by a specifically cut length of 42mm x 18mm pine which had track laid across it. This section can just be lifted out and replaced with a bridge and a few girder sections either side, as the scenery in this area develops. I have currently completed the basic scenery either side of the opening.
At the Tuesday Nighters this week I asked the guys if anyone had a copy of the Data Sheet for the NSW Pratt Truss bridge. I was pretty sure I had one, but could not find my copy. No one had a copy. I thought I used my copy to assist with building my Pratt Truss bridge over the Upper Richmond River at Kyogle a couple of years earlier. Anyway, Arthur, one of the newest attendees advised that Arthur Robinson would surely know about that bridge and might be able to assist. The next day I received a forward of an email that contained a document about the design of the Bridges on the North Coast. Sure enough the details of the bridge over the Richmond River at Cassino was included. This bridge was a 180' version with 8 sections of 22' 6". The document also covered many other valuable dimensions. So 180' works out to be 63cm wide, quite a span. It needs to carry the weight of 3 locos - no mean feat when made from just styrene.
I was planning to scratch build the bridge completely in styrene. But on Thursday afternoon, I made my way to Austral Modelcraft and purchased a Central Valley kit of the 150' Pratt Truss bridge and a couple of extra kits of additional bridge girders. This kit models a bridge of 6 sections of 25', where as I need 8 sections of 22' 6". So I have decided to use some components from the kit and scratch build additional components from styrene.
So far I have made the base of the bridge (mostly from scratch built styrene components) and have started the front bridge girder work. I am grateful that I was able to attend last years Armidale Convention and take a few photos of the various Pratt Truss bridges on display there. I will post some photos of my progress next weekend.
Yesterday Greg came over with his Raspberry Pi, and a few other bits and pieces, including keyboard, screen, powered USB hub, wifi dongle, a few cables, and tried to connect it to my NCE Power Pro 5-Amp system. I provided my USB to Serial converter and you would not believe it. He basically plugged it in, configured a few items, and then restarted it and Voila! He had control of a train from his keyboard via an onscreen throttle. Next out came the I-phone and he had that working too. Damn Amazing!
I might have to invest in one myself and have it available for future operating sessions, so operators can use their smart phone instead of a plug-in throttle. On that topic, it looks like I might have to arrange the next running session for Saturday 6th of July. I wonder if I can bridge that gap before then?
5 hours ago