The side window is mainly (but not completely) a cut through a face which is rotated with respect to the central part of the back of the coach, where the door is placed (with a window cut along the y axis), perpendicular to the face it is cutting. In these cases, the sketch remains attached to the surface I used as reference, the positioning of the frame extrusions is relative to it. I did similarly for the side window frames. I added a fillet on the spicky front corner. I created a sketch attached on the front face of the cabin, I drew the border of the frame extracting the borders of the cut as external geometry references, then I created an extrusion and I positioned it slightly backward with respect to the front surface. the xy plane, which is not perpendicular to the front face of the cabin). The final object is a solid with a rectangular section, running around the window borders, at some distance from the front surface, lying on the surface of the cut through section plane (i.e. Then I wanted to add a the frame to be placed inside the window cut, representing the rubber seal in the real case, where the modeler can glue the film representing the window glass. I placed the sketch at the origin of the axes, oriented it on the xz plane, created a pad long enough to intersect completely the front slopes of the cabin and cut them out from the cabin shape. ![]() The front of the cabin has two main slopes where these cutouts will be made, along the longitudinal axis of the train, which is not perpendicular to the external sloping surface. Starting from the blueprint I created the sketch of half of the front projection of the windscreen and the front lights housing. I already faced some challenging issues related to the positioning and orientation of pads and extrusions, as well as the detachment of sketches from surfaces and their repositioning: the front window of the cabin, the right side window of the back, the side windows of the body.
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