JimG
Western Thunderer
I've almost got it finished.
All the sleepering was completed under and around the crossing.
The next things to deal with was the switch.
The first two sleepers to the left of the points are the normal sleepers as supplied by Cliff Barker. I like to provide long timbers at the tierod area - easier to do when building the turnout and they can be cut off later if not required. I also have an idea to house a waterproof microswitch on these timbers to switch crossing polarity. The Caledonian had a habit of boxing over turnout and signal operating equipment so I'm looking at hiding the microswitch under such a covering. This message on the Caledonian Association forum gives some idea of what they did.
The timbers were made up by using two sleepers with the chairs milled off, overlapping them with chair areas opposite each other and cutting through both with a razor saw. A thick styrene strip was glued in the channel on their undersides to make the join.
The other two sleepers to the right were standards sleepers with the chairs milled off. Slide chairs will be added to these four rightmost sleepers.
...and a quick shot of most of the turnout with all the interlaced sleepering in place and just the gap in the sleepering at the switch heel to deal with.
On the prototype, nine foot sleepers were used with the special chairs for the divetring road being placed closer to the sleeper ends. I wanted to use the external chair detail which meant cutting the sleepers as above.
I used 2mm styrene strip again join the pieces of the sleepers but I changed the glue I used since I had to have a fair bit of wriggle room to get the rail in to line thins up and place the sleeper ends. The No Nonsense superglue was a bit to fast to allow this so I used the Gorilla glue which takes about two hours to set partially hard (24 hours for full setting).
The three sleeper ends in place and waiting for the Gorilla glue to set hard. I'm intending to fill the gaps with short sections of sleeper glued in although the gaps would be hidden by chairs. You can also cit the Cliff barker sleepers to 8' 6" scale length by clipping a scale three inches off the ends. So I cut this end off to get close to representing the nine foot sleeper length.
The next job was to fit one of the check rails. Here's the rail fitted with the milled halves of the Cliff barker check rails...
...and the stock rail with its milled chairs...
...and the rail in place located by two check gauges., with the chairs glued with MEK.
The work so far with closure rails fitted and the other check rail lying close to its position waiting on chairs - I've run out of the check rail chairs and need to get some more.
...and a shot of the switch with one of the milled point blades in position. I've just got the slide chairs to fit and, of course, the other blade.
Things I found out today - the gauge in the sleepers is close to 44.60mm, not 45mm. Technically, G1 has always been 1.75" (44.45mm) or 45mm, so the sleepers are pretty close to the average between both gauges. But ScaleOne32 is based on a gauge of 45mm, so my gauges don't fit and I could run into problems. I actually found out because I was checking the clearance clearance at the heel of the switch blades. It was while I was checking this that I found that my gauges didn't fit. It could be that if the chairs had the correct inclination then the gauge would be closer to 45mm. However, Cliff Barker does a gauge widened sleeper of 45.5mm gauge so I might get some of them and see what these pan out to in actual fact. It never crossed my mind to check the gauge. In fact I wasn't going to make any gauges except check gauges since the sleepers would be maintaining gauge.
The other thing I found out was that Cliff Barker's 45mm gauge sleepers are polypropylene - not ABS. I had probably mis-read his website information. That certainly explains the difficulty in gluing - polypropylene is way up there with the most difficult materials to join anything to. But his gauge widened sleepers are ABS so if I go for these sleepers, my gluing problems might disappear as well.
And now a bit of a gap in tracklaying until I get more supplies from Cliff Barker.
Jim.
All the sleepering was completed under and around the crossing.
The next things to deal with was the switch.
The first two sleepers to the left of the points are the normal sleepers as supplied by Cliff Barker. I like to provide long timbers at the tierod area - easier to do when building the turnout and they can be cut off later if not required. I also have an idea to house a waterproof microswitch on these timbers to switch crossing polarity. The Caledonian had a habit of boxing over turnout and signal operating equipment so I'm looking at hiding the microswitch under such a covering. This message on the Caledonian Association forum gives some idea of what they did.
The timbers were made up by using two sleepers with the chairs milled off, overlapping them with chair areas opposite each other and cutting through both with a razor saw. A thick styrene strip was glued in the channel on their undersides to make the join.
The other two sleepers to the right were standards sleepers with the chairs milled off. Slide chairs will be added to these four rightmost sleepers.
...and a quick shot of most of the turnout with all the interlaced sleepering in place and just the gap in the sleepering at the switch heel to deal with.
On the prototype, nine foot sleepers were used with the special chairs for the divetring road being placed closer to the sleeper ends. I wanted to use the external chair detail which meant cutting the sleepers as above.
I used 2mm styrene strip again join the pieces of the sleepers but I changed the glue I used since I had to have a fair bit of wriggle room to get the rail in to line thins up and place the sleeper ends. The No Nonsense superglue was a bit to fast to allow this so I used the Gorilla glue which takes about two hours to set partially hard (24 hours for full setting).
The three sleeper ends in place and waiting for the Gorilla glue to set hard. I'm intending to fill the gaps with short sections of sleeper glued in although the gaps would be hidden by chairs. You can also cit the Cliff barker sleepers to 8' 6" scale length by clipping a scale three inches off the ends. So I cut this end off to get close to representing the nine foot sleeper length.
The next job was to fit one of the check rails. Here's the rail fitted with the milled halves of the Cliff barker check rails...
...and the stock rail with its milled chairs...
...and the rail in place located by two check gauges., with the chairs glued with MEK.
The work so far with closure rails fitted and the other check rail lying close to its position waiting on chairs - I've run out of the check rail chairs and need to get some more.
...and a shot of the switch with one of the milled point blades in position. I've just got the slide chairs to fit and, of course, the other blade.
Things I found out today - the gauge in the sleepers is close to 44.60mm, not 45mm. Technically, G1 has always been 1.75" (44.45mm) or 45mm, so the sleepers are pretty close to the average between both gauges. But ScaleOne32 is based on a gauge of 45mm, so my gauges don't fit and I could run into problems. I actually found out because I was checking the clearance clearance at the heel of the switch blades. It was while I was checking this that I found that my gauges didn't fit. It could be that if the chairs had the correct inclination then the gauge would be closer to 45mm. However, Cliff Barker does a gauge widened sleeper of 45.5mm gauge so I might get some of them and see what these pan out to in actual fact. It never crossed my mind to check the gauge. In fact I wasn't going to make any gauges except check gauges since the sleepers would be maintaining gauge.
The other thing I found out was that Cliff Barker's 45mm gauge sleepers are polypropylene - not ABS. I had probably mis-read his website information. That certainly explains the difficulty in gluing - polypropylene is way up there with the most difficult materials to join anything to. But his gauge widened sleepers are ABS so if I go for these sleepers, my gluing problems might disappear as well.
And now a bit of a gap in tracklaying until I get more supplies from Cliff Barker.
Jim.