建立方向盘项目初始版本

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2026-10-29 22:04:55 +08:00
commit 9962cbfbce
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[
{
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"max_overlap": 0.0
},
{
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{
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{
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]

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{
"sheet_size_mm": [
48,
48
],
"cell_mm": [
12,
12
],
"diameter_mm": 4.4,
"opening_sector_degrees": 90,
"counts": [
8,
8
],
"thicknesses_mm": [
0.5,
1
],
"number_of_solids": 1,
"stl_components": 1,
"stl_is_solid": true,
"part_is_valid": true,
"fcstd_reopen": true,
"step_minus_fcstd_volume": 0.0,
"fcstd_minus_step_volume": 0.0,
"original_opening_direction": "northeast, rotate after separation to match each pillar",
"cut_boundaries_mm": [
12,
24,
36
],
"cut_line_is_physical_feature": false,
"thickness_parameter_recompute_test": true,
"nominal_kerf_mm": 0,
"nominal_volume_mm3": 1159.1522240096288
}

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# 一体式 4×4 双厚度垫片
打印 `一体式4x4双厚垫片.stl` **1 份**,单位毫米,保持原比例。它是单个连续实体,没有连接杆;整体外包络 48 × 48 mm。
- 低台阶一半厚 **0.5 mm**,分为 8 片;高台阶一半厚 **1 mm**,分为 8 片。
- 按图中的虚线分别在距左边及下边 12、24、36 mm 处裁开,每片名义外形为 12 × 12 mm。虚线只是示意,实际 STL 没有割槽、刻线或厚度标记。
- 每片中心孔为 Ø4.4 mm,保留原设计的 90°扇形开口;单元边缘切开后,开口才能通向外侧。开口的朝向需要按每个安装位置旋转、镜像调整,使缺口对准立柱开口和相邻角码。
- 裁切前先以台阶分清厚度,裁出后分别标记、装袋。裁切和修边时不要损伤孔口、缺口及厚度基准面,且应计入刀口宽度;切割后的外形不能保证仍为精确 12 × 12 mm。先用一片试裁、试装。
模型按 16 个理想单元切分后,每片在原 Ø12 mm 圆垫片范围内与对应原始垫片形状一致,薄厚交界处切出的薄片没有多余的厚台阶。方形垫片在原模型的四个安装方向下均未与模拟角码相交;最小间隙仍小于 1 mm,实际孔相位、角码和打印误差需试装核对。
请打印商评估厚 0.5 mm 和 1 mm 的薄板能否成形、平整并保持精度。虽然本模型为一块连续板,最终是否按拼接件分类及能否下单由打印商决定;此结构不能保证通过平台检查。尚未进行实物打印、裁切或装配验证。
`一体式4x4双厚垫片.FCStd` 保留薄、厚板及各开孔的特征树,`Parameters` 中厚度可修改并重算;开孔和单元间距的数值按原设计建立,修改布局需检查全部特征。STEP 和 STL 与当前模型一致。构建脚本为 `scripts/build_washer_panel_4x4.py`。