Hi
One of the must dos for the show is the signal gantry. I get nagged mercilessly by the rest of the gang to get it complete, so that is where my attention is at the moment.
First off is some pictures of where I am at the moment:
Modelled on the L&Y gantry outside Manchester.
This shot shows the cast balance weights with the right hand distant slotted:
while this one shows the details of the gantry framing:
There is a further arm - a calling on arm which needs to be added to one of the dolls, making 9 working arms. All the wires are above the decking, and go to angle on the one end, which is why Tony is having to think hard about the servo mounting.
It's also a problem for me in that I am going to have restricted space, and in addition, the change of direction below the operating lever is by pulley wheels, and I wished to replicate that as far as possible.
That's not possible of course using wire, so I adapted some C&L pulley wheels, so that they worked like cranks, but looked like wheels....mostly. I don't know whether it will work, but there is only one way to find out.
OK, they need a clean up, but you get the idea. All the wires run to one end, and then down via cranks. I soldered 9 cranks to some tube to minimise the wobble when on the axle, and I am about to separate them with my piercing saw.
So that's where I am at the moment. Will it work? Watch this space.
Richard
