David Andrews Princess Royal – Brakes Revisited

The Princess is keeping me entertained to the end.

Almost the last thing to fit are the sand pipes but in order to do that I needed to refit the brakes so that I can work out how the sand pipes will fit around them.

Previously after fitting the 3D printed shoes I had fixed the hangers to the frames via soldered pins with the top of the hanger slipping over a square rod (the holes were etched square) for mounting. Having come back to it I wasn’t happy with that arrangement so I removed the pins and substituted some lengths of 12BA stud instead (cut down screws) next I soldered the square end into the hanger brackets. Then I enlarged the holes in the frames so now I can insert the studs through and put nut on the back to hold them.

A bonus to this approach is that not only will it be easier if a little fiddly to get them on and off the studs will rotate in the frames before being fully tightened so that positioning of the shoes against the wheels will be more adjustable.

David Andrews Princess – Brakes Revisited