I’ve start work on making Ballast Wagons following Hidden-Agenda’s excellent Tutorial.
Gareth has provided a list of items needed, where to get them, diagrams with all the measurements in mm or .5 mm as well as photographs of the various steps.
I used the sharp edges of my gauge to mark of the measurements, it made things so easy, I set to the gauge to, in this case, 6 mm and you can mark the length of the styrene sheet.
The cutting out was the easy bit, now for sticking it together.