Braun first sketched the whole thing on the inside of a vertical cylinder at a scale of 1:10, i.e. with a height of 1.05 meters and a diameter of 3 meters, which corresponds to a circumference of 9.5 meters. He used all the historical information about the battle, drawings, paintings and photographs of the landscape that he had collected, as well as the detailed sketches he had made.
Braun used a grid to transfer the sketch onto the large-format canvas (with an area of almost 1000m2). The study was covered with a grid of squares with a side length of one decimeter, photographed and projected onto the canvas at ten times the original size. The canvas had previously been covered with a similar but ten times larger grid so that each square of the design could be transferred exactly.
For the priming (two layers of oil pastel white), the transfer of the blank and the actual painting - also with oil colours - the team had a rolling scaffold at their disposal. It moved along the canvas on rails and was equipped with wooden panels at different heights. The overall assessment was carried out from the future visitor platform, at the correct height and distance between the canvas and the viewer.