Monthly Archives: May 2023

David Andrews Princess Royal – Outside Motion Update.

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A wider discussion on the subject over on Western Thunder has highlighted that there is more wrong with the motion than just the reversing rod supports.

So far I have modified the Radius Rod, moving the pivot hole nearer to the slot by 1mm. I have also modified a spare set of Combination Rods as those supplied are too long too.

Nick Dunhill had a replacement set of motion etched when he built his three. He has very kindly offered me some of his spares which I will collect at Barnsley. Progress on the chassis will be put on hold until I have the alternate etches.

David Andrews Princess Royal – Outside Motion Fun

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The last couple of weeks have been steadily working towards getting the outside motion working as smoothly as the inside motion. It has fought me much of the way.

Some of the issues have been of my making, mostly due to my clumsiness in dropping bits on the floor which subsequently disappeared into the black hole in the workshop floor.

As I was working my way through the motion and I got to the motion bracket, I discovered that he support rod for the reversing mechanism wouldn’t go through the chassis due to it hitting the middle wheel set.

DA Princess Royal Outside Motion

Initially, I wondered if the cast wheels were slightly oversized but they aren’t and a bit of further investigation got me to the support brackets which are too long when compared to the GA drawings in the Wild Swan book. I wonder if other people who have built the DA kit have experienced the same issue?

DA Princess Royal Outside Motion