7mm Richards P48 US Thread

[richard carr]

Dave

There's a bit more clearance than the photo suggests, but no, there isn't going to be any OHLE.

Richard

 

[richard carr]

So construction of the first part of the turning triangle continues.



The first thing was to cut a piece for the bridge deck with a jigsaw, and then test it in position.



I have fixed a piece of 4 x 2 under the bridge for it rest on. Then a few other bits of 4 x 2 at the other end.



I then found the remaining bit of plywood worked well for the next piece of the bridge over the tracks..



The switch has been largely finished and powered up with a cobalt motor, I use a 12volt lithium battery to test these so I know it works before it gets wired into a control panel at some point. Here's a view from the other side. At the moment it is just sitting in place it hasn't been fixed down at all. The underneath of the bridge piece has had a couple strengthening pieces glued and screwed in place to keep it rigid.

 

[richard carr]

The second part of the bridge is actually just a bit too small in width, so I decided to cut a new bit out based on the shape



All ready for the jigsaw, and here it is in place



This is now going run back down the middle of the shed on the S7 layout at a raised level, like this and then re-join the main circuit so that it makes a big return loop.



But next I need to build the switch for the 3rd leg of the turning triangle.

 

[richard carr]

So on Sunday I started to play around with what the turning triangle might look like in terms of where the switches would go etc.



It will just about fit inwith everything using the 1 metre radius curves