Turntable overshoot problem

[AntonyVW]

Im having a problem getting a loco to stop on the bridge of the AJS scripted turntable. I have put track markers on all of the stubs at the closest point to the bridge that is possible (you cannot put them on the bridge itself). The turntable moves into position correctly every time but when the loco moves forward onto the bridge it always overshoots the end and places itself on top of where the track marker is. It does not matter whether the loco is going forwards or backwards it still does the same. So my question is - how do I get it to stop on the bridge itself without overshooting?

 

[Pendolino]

If you cannot place a trackmark on the bridge, I'm afraid there is no solution.
On any turntable I ever used, I placed a trackmark with the radius set at 0.01 metres at the center of the bridge and everything always went smooth. I don't know if AJS's scripted turntable has some feature preventing the placement of trackmarks on the bridge itself. You could try setting the trackmark radius at such a distance that the locomotive stops well before it.

 

[Scottish]

The normal way to get the loco to stop on the turntable is to adjust the trigger radius of the trackmark so the loco stops at that distance from the trackmark. In surveyor open the 'track' tab then go to the third tab called 'trackmark mode'. Click the 'advanced' button at the bottom and this opens the drop down box to 'get' and 'set' the trigger radius of the trackmark. Click the 'set radius' button, change the value in the textbox then click on the trackmark you wish to alter. You can see the current radius for the trackmark by clicking on the 'get radius' button then clicking on the trackmark.

Unless it has previously been altered, the normal default radius is 20 meters so this would usually cause the loco to stop before it is fully on the turntable. Therefore my guess if the loco does not stop until it is over the trackmark is that somehow the trigger radius has been set to zero.

I usually find that setting the trackmark trigger radius to 1 or 2 meters gives a good result.

Scottish

 

[AntonyVW]

Thanks guys - that was just what I needed. Though in this case I needed to set it to 10m and that stops it perfectly in the middle of the bridge.