1. Generally speaking, the drawings attached to the patent specification are all wireframes. You can use 3D software to draw them, or you can project them into isometric wireframes. Do not use grayscale diagrams
2. Different parts cannot be named the same. Otherwise, when explaining, the labels will be different and the technical terms will be the same, which is a problem that cannot be identified. You can add left, right, up, down, big, and small. Or use apostrophes to distinguish them in names. Don't use 1 or 2 to distinguish, you can use 1 or 2 to distinguish, because you also need to add labels, and the labels are usually Arabic numerals. If they are written together in this way, it will be confusing