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Add warning info on spirail lift before slicing
This commit is contained in:
xiaoyeliu
259
docs/spiral_lift_boundary_warning.md
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259
docs/spiral_lift_boundary_warning.md
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@@ -0,0 +1,259 @@
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# 螺旋抬升边界警告功能文档
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## 1. 背景
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### 1.1 问题描述
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OrcaSlicer 在使用螺旋抬升（Spiral Lift）功能时存在安全风险：当模型靠近打印床边界时，螺旋抬升过程中可能会超出床范围，导致打印头撞击床边缘造成硬件损坏。
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### 1.2 螺旋抬升原理
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螺旋抬升是一种平滑的 Z 轴抬升方式，通过螺旋路径避免打印头在抬升时与模型碰撞。其计算公式为：
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```
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radius = z_hop / (2 × π × tan(travel_slope))
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```
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**典型参数**：
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- `z_hop`：Z 轴抬升高度，通常为 0.2mm
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- `travel_slope`：移动斜率，通常为 1°-3°
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**示例计算**（travel_slope=3°, z_hop=0.2mm）：
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```
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radius = 0.2 / (2 × π × tan(3°))
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≈ 0.608mm
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螺旋直径 ≈ 1.2mm
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```
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### 1.3 风险场景
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1. **模型靠近边界**：螺旋路径可能延伸到床外
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2. **大尺寸模型**：导入或缩放到接近床尺寸的模型
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3. **移动模型**：用户将模型移动到床边缘
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## 2. 解决方案
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### 2.1 设计思路
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在用户移动、导入或缩放模型时，实时检测模型边界与床边界的距离，当距离小于安全阈值时显示警告提示。
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### 2.2 实现方案
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#### 2.2.1 架构设计
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```
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用户操作（移动/导入/缩放）
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↓
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reload_scene() 触发场景刷新
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↓
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check_outside_state() 检测模型状态
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↓
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计算模型边界框与床边界的最小距离
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↓
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判断是否 < 3mm 阈值
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↓
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设置 near_boundary_for_spiral_lift 标志
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↓
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_set_warning_notification() 显示警告
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```
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#### 2.2.2 核心代码实现
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**检测逻辑**（`3DScene.cpp`）：
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```cpp
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// 螺旋抬升安全余量：3.5mm
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constexpr double SPIRAL_LIFT_SAFETY_MARGIN = 3.5; // mm
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// 计算模型边界框与床边界的最小距离
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double min_distance_x = std::min({
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std::abs(bb.min.x() - bed_bb.min.x()),
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std::abs(bed_bb.max.x() - bb.max.x())
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});
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double min_distance_y = std::min({
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std::abs(bb.min.y() - bed_bb.min.y()),
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std::abs(bed_bb.max.y() - bb.max.y())
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});
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double min_distance = std::min({min_distance_x, min_distance_y});
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if (min_distance < SPIRAL_LIFT_SAFETY_MARGIN) {
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volume->near_boundary_for_spiral_lift = true;
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}
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```
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**警告触发**（`GLCanvas3D.cpp`）：
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```cpp
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if (contained_min_one) {
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_set_warning_notification(EWarning::SpiralLiftNearBoundary,
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_is_any_volume_near_boundary_for_spiral_lift());
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}
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```
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#### 2.2.3 新增数据结构
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**GLVolume 成员变量**（`3DScene.hpp`）：
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```cpp
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bool near_boundary_for_spiral_lift : 1; // 是否靠近边界
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```
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**EWarning 枚举**（`GLCanvas3D.hpp`）：
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```cpp
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enum class EWarning {
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// ... 现有类型
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SpiralLiftNearBoundary // 螺旋抬升靠近边界警告
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};
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```
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### 2.3 用户界面
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**警告级别**：`SLICING_SERIOUS_WARNING`（红色/橙色警告）
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**警告文本**：
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- 英文："An object is too close to the plate boundary. Spiral lift during printing may exceed the bed and cause a crash. Please move the object away from the edge (recommend keeping at least 3.5mm distance)."
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- 中文："模型距离打印床边界太近。打印过程中的螺旋抬升可能会超出床范围导致撞机。请将模型移离边缘（建议保持至少3.5mm的距离）。"
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## 3. 阈值选取依据
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### 3.1 理论计算
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| 参数 | 典型值 | 说明 |
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|------|--------|------|
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| travel_slope | 1° - 3° | 移动斜率，角度越小螺旋半径越大 |
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| z_hop | 0.2mm | Z 轴抬升高度 |
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| 螺旋直径（1°） | ≈ 3.6mm | 最不利情况 |
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| 螺旋直径（3°） | ≈ 1.2mm | 常见情况 |
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### 3.2 阈值选项对比
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| 选项 | 阈值 | 优点 | 缺点 |
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|------|------|------|------|
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| 2mm | 螺旋直径(1.2mm) + 0.8mm | 覆盖常见情况 | 对于1°斜率不够安全 |
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| 3mm | 更保守的安全距离 | 覆盖大部分配置 | 1°斜率时仍有风险 |
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| **3.5mm** | **最佳平衡点** | **覆盖1°-3°斜率，安全且实用** | **略保守，但合理** |
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| 5mm | 非常保守 | 最大安全范围 | 过于保守，限制用户操作 |
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### 3.3 最终选择
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**选择 3.5mm 作为阈值**，理由：
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1. **安全性**：完全覆盖 travel_slope=1° 的最不利情况（螺旋直径 ≈ 3.6mm）
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2. **实用性**：不会过度限制用户的模型放置空间
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3. **余量充足**：比常见情况（3°斜率，直径1.2mm）多出近3倍的安全距离
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4. **用户体验**：在安全性和可用性之间取得最佳平衡
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## 4. 风险评估
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### 4.1 技术风险
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| 风险项 | 风险等级 | 缓解措施 |
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|--------|----------|----------|
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| 检测精度问题 | 低 | 使用边界框检测，足够准确 |
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| 性能影响 | 低 | 只在模型变化时检测，开销极小 |
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| 误报/漏报 | 低 | 使用 3mm 保守阈值，降低误报 |
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| 圆形床支持 | 中 | 当前仅支持矩形床，未来可扩展 |
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### 4.2 影响面分析
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**正面影响**：
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- ✅ 防止打印头撞机，保护硬件
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- ✅ 提升用户体验，提前发现风险
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- ✅ 降低售后成本，减少设备损坏
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**潜在负面影响**：
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- ⚠️ 可能频繁触发警告，影响用户体验（已通过 3.5mm 阈值缓解）
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- ⚠️ 仅支持 Snapmaker U1 矩形床（已明确限制）
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### 4.3 使用场景
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| 场景 | 是否触发 | 说明 |
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|------|----------|------|
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| 移动模型靠近边界 | ✅ 是 | 实时检测，移动时即时提醒 |
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| 导入大尺寸模型 | ✅ 是 | 导入后立即检测 |
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| 缩放模型变大 | ✅ 是 | 缩放后重新检测 |
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| 模型完全在床中心 | ❌ 否 | 距离 ≥ 3.5mm 时不触发 |
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| 模型部分超出边界 | ✅ 是 | 即使超出也会检测 |
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### 4.4 原点偏移的影响
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对于 Snapmaker U1，配置了原点偏移（x: -0.5, y: -1），这已经体现在 `printable_area` 中：
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```json
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"printable_area": [
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"0.5x1", // 左下角（考虑了原点偏移）
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"270.5x1", // 右下角
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"270.5x271", // 右上角
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"0.5x271" // 左上角
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]
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```
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**实际可打印范围**（U1）：
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- X: 0.5 ~ 270.5（宽度 270mm）
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- Y: 1 ~ 271（高度 270mm）
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**不报警告的安全区域**（距离边界 ≥ 3.5mm）：
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- X: **4 ~ 267**
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- Y: **4.5 ~ 267.5**
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## 5. 技术实现细节
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### 5.1 修改文件清单
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| 文件 | 修改内容 |
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|------|----------|
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| `src/slic3r/GUI/GLCanvas3D.hpp` | 添加 EWarning::SpiralLiftNearBoundary 枚举 |
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| `src/slic3r/GUI/GLCanvas3D.cpp` | 添加警告文本和触发逻辑 |
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| `src/slic3r/GUI/3DScene.hpp` | 添加 GLVolume 成员变量 |
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| `src/slic3r/GUI/3DScene.cpp` | 实现距离检测逻辑 |
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| `localization/i18n/Snapmaker_Orca.pot` | 英文翻译 |
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| `localization/i18n/zh_CN/Snapmaker_Orca_zh_CN.po` | 中文翻译 |
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### 5.2 关键函数
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| 函数 | 位置 | 功能 |
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|------|------|------|
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| `GLVolumeCollection::check_outside_state()` | 3DScene.cpp:1050 | 检测模型状态，计算边界距离 |
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| `GLVolumeCollection::is_any_volume_near_boundary_for_spiral_lift()` | 3DScene.cpp:1218 | 检查是否有模型靠近边界 |
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| `GLCanvas3D::reload_scene()` | GLCanvas3D.cpp:2310 | 场景刷新，触发检测 |
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| `GLCanvas3D::_set_warning_notification()` | GLCanvas3D.cpp:9659 | 显示警告通知 |
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### 5.3 调试信息
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如需调试，可以在 `3DScene.cpp:1134` 附近添加日志：
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```cpp
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if (min_distance < SPIRAL_LIFT_SAFETY_MARGIN) {
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BOOST_LOG_TRIVIAL(warning) << "Volume near boundary: " << volume->name
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<< ", min_distance=" << min_distance
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<< " (threshold=" << SPIRAL_LIFT_SAFETY_MARGIN << ")";
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volume->near_boundary_for_spiral_lift = true;
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}
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```
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## 6. 未来改进方向
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### 6.1 短期改进
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1. **动态阈值计算**：根据当前配置的 `travel_slope` 和 `z_hop` 动态计算阈值
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- 公式：`threshold = z_hop / (π × tan(travel_slope)) + safety_margin`
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- 对于 3° 斜率 + 0.4mm z_hop，阈值可降至约 2.5mm
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2. **配置选项**：允许用户在设置中调整阈值或关闭警告
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3. **可视化指示**：在 3D 视图中用颜色标记靠近边界的模型
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### 6.2 长期改进
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1. **圆形床支持**：扩展到支持 Delta 打印机的圆形床
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2. **精确碰撞检测**：使用模型的实际几何而非边界框进行检测
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3. **自动修复建议**：提供一键自动移动模型到安全位置的功能
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## 7. 总结
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本次实现通过在模型移动、导入、缩放时实时检测边界距离，当距离小于 **3.5mm** 时显示红色警告，有效预防了螺旋抬升导致的撞机风险。
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**核心优势**：
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- 被动防御 → 主动预警
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- 事后发现 → 事前提醒
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- 保护硬件，提升用户体验
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**适用范围**：
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- Snapmaker U1 打印机（矩形床，带原点偏移）
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- 所有使用螺旋抬升功能的场景
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- 覆盖 travel_slope 1°-3° 的配置范围
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@@ -4340,6 +4340,12 @@ msgid ""
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"confirming that the height is within the build volume."
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msgstr ""
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msgid ""
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"An object is too close to the plate boundary. Spiral lift during printing "
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"may exceed the bed and cause a crash. Please move the object away from the "
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"edge (recommend keeping at least 3mm distance)."
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msgstr ""
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msgid "Calibration step selection"
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msgstr ""
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@@ -4267,6 +4267,13 @@ msgstr ""
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"对象被放置在构建板的边界上或超过高度限制。\n"
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"请通过将其完全移动到构建板内或构建板外，并确认高度在构建空间以内来解决问题。"
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msgid ""
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"An object is too close to the plate boundary. Spiral lift during printing "
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"may exceed the bed and cause a crash. Please move the object away from the "
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"edge (recommend keeping at least 3mm distance)."
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msgstr ""
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"模型距离打印床边界太近。打印过程中的螺旋抬升可能会超出床范围导致撞机。请将模型移离边缘（建议保持至少3mm的距离）。"
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msgid "Calibration step selection"
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msgstr "校准步骤选择"
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@@ -1110,6 +1110,32 @@ bool GLVolumeCollection::check_outside_state(const BuildVolume &build_volume, Mo
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int64_t comp_id = ((int64_t)volume->composite_id.object_id << 32) | ((int64_t)volume->composite_id.instance_id);
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volume->is_outside = state != BuildVolume::ObjectState::Inside;
|
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// Snapmaker: 检测模型是否距离床边界太近（螺旋抬升风险）
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volume->near_boundary_for_spiral_lift = false;
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// 只对矩形床进行检测（Snapmaker U1）
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if (plate_build_volume.type() == BuildVolume_Type::Rectangle && volume->composite_id.volume_id >= 0) {
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constexpr double SPIRAL_LIFT_SAFETY_MARGIN = 3.5; // mm
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const BoundingBoxf3& bb = volume_bbox(*volume);
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const BoundingBoxf3& bed_bb = plate_build_volume.bounding_volume();
|
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// 计算模型边界框与床边界的最小距离（使用绝对值处理超出边界的情况）
|
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double min_distance_x = std::min({
|
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std::abs(bb.min.x() - bed_bb.min.x()),
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std::abs(bed_bb.max.x() - bb.max.x())
|
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});
|
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double min_distance_y = std::min({
|
||||
std::abs(bb.min.y() - bed_bb.min.y()),
|
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std::abs(bed_bb.max.y() - bb.max.y())
|
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});
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double min_distance = std::min({min_distance_x, min_distance_y});
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// 如果最小距离小于安全余量，触发警告
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if (min_distance < SPIRAL_LIFT_SAFETY_MARGIN) {
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volume->near_boundary_for_spiral_lift = true;
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||||
}
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||||
}
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//volume->partly_inside = (state == BuildVolume::ObjectState::Colliding);
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if (volume->printable) {
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if (overall_state == ModelInstancePVS_Inside && volume->is_outside) {
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@@ -1185,10 +1211,22 @@ void GLVolumeCollection::reset_outside_state()
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if (volume != nullptr) {
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volume->is_outside = false;
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volume->partly_inside = false;
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volume->near_boundary_for_spiral_lift = false; // Snapmaker: 初始化螺旋抬升边界状态
|
||||
}
|
||||
}
|
||||
}
|
||||
|
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// Snapmaker: 检查是否有任何 volume 靠近边界（螺旋抬升风险）
|
||||
bool GLVolumeCollection::is_any_volume_near_boundary_for_spiral_lift() const
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{
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for (const GLVolume* volume : this->volumes)
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{
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if (volume != nullptr && volume->near_boundary_for_spiral_lift)
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
void GLVolumeCollection::update_colors_by_extruder(const DynamicPrintConfig *config, bool is_update_alpha)
|
||||
{
|
||||
|
||||
|
||||
@@ -185,6 +185,8 @@ public:
|
||||
// Wheter or not this volume is outside print volume.
|
||||
bool is_outside : 1;
|
||||
bool partly_inside : 1;
|
||||
// Snapmaker: Whether or not this volume is too close to boundary for spiral lift
|
||||
bool near_boundary_for_spiral_lift : 1;
|
||||
// Wheter or not this volume has been generated from a modifier
|
||||
bool is_modifier : 1;
|
||||
// Wheter or not this volume has been generated from the wipe tower
|
||||
@@ -516,6 +518,8 @@ public:
|
||||
// returns the containment state in the given out_state, if non-null
|
||||
bool check_outside_state(const Slic3r::BuildVolume& build_volume, ModelInstanceEPrintVolumeState* out_state) const;
|
||||
void reset_outside_state();
|
||||
// Snapmaker: 检查是否有任何 volume 靠近边界（螺旋抬升风险）
|
||||
bool is_any_volume_near_boundary_for_spiral_lift() const;
|
||||
|
||||
void update_colors_by_extruder(const DynamicPrintConfig *config, bool is_update_alpha = true);
|
||||
|
||||
|
||||
@@ -2823,6 +2823,13 @@ void GLCanvas3D::reload_scene(bool refresh_immediately, bool force_full_scene_re
|
||||
if (printer_technology != ptSLA || !contained_min_one)
|
||||
_set_warning_notification(EWarning::SlaSupportsOutside, false);
|
||||
|
||||
// Snapmaker: 螺旋抬升边界警告 - 无论模型是否超出边界都检测
|
||||
if (contained_min_one) {
|
||||
_set_warning_notification(EWarning::SpiralLiftNearBoundary, _is_any_volume_near_boundary_for_spiral_lift());
|
||||
} else {
|
||||
_set_warning_notification(EWarning::SpiralLiftNearBoundary, false);
|
||||
}
|
||||
|
||||
post_event(Event<bool>(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS,
|
||||
contained_min_one && !m_model->objects.empty() && !partlyOut));
|
||||
}
|
||||
@@ -2830,6 +2837,7 @@ void GLCanvas3D::reload_scene(bool refresh_immediately, bool force_full_scene_re
|
||||
_set_warning_notification(EWarning::ObjectOutside, false);
|
||||
_set_warning_notification(EWarning::ObjectClashed, false);
|
||||
_set_warning_notification(EWarning::SlaSupportsOutside, false);
|
||||
_set_warning_notification(EWarning::SpiralLiftNearBoundary, false); // Snapmaker: 清空警告
|
||||
post_event(Event<bool>(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, false));
|
||||
}
|
||||
}
|
||||
@@ -9696,6 +9704,13 @@ void GLCanvas3D::_set_warning_notification(EWarning warning, bool state)
|
||||
"Please solve the problem by moving it totally on or off the plate, and confirming that the height is within the build volume.");
|
||||
error = ErrorType::PLATER_ERROR;
|
||||
break;
|
||||
// Snapmaker: 螺旋抬升靠近边界警告
|
||||
case EWarning::SpiralLiftNearBoundary:
|
||||
text = _u8L("An object is too close to the plate boundary. "
|
||||
"Spiral lift during printing may exceed the bed and cause a crash. "
|
||||
"Please move the object away from the edge (recommend keeping at least 3mm distance).");
|
||||
error = ErrorType::SLICING_SERIOUS_WARNING;
|
||||
break;
|
||||
}
|
||||
//BBS: this may happened when exit the app, plater is null
|
||||
if (!wxGetApp().plater())
|
||||
@@ -9750,6 +9765,12 @@ bool GLCanvas3D::_is_any_volume_outside() const
|
||||
return false;
|
||||
}
|
||||
|
||||
// Snapmaker: 检查是否有任何 volume 靠近边界（螺旋抬升风险）
|
||||
bool GLCanvas3D::_is_any_volume_near_boundary_for_spiral_lift() const
|
||||
{
|
||||
return m_volumes.is_any_volume_near_boundary_for_spiral_lift();
|
||||
}
|
||||
|
||||
void GLCanvas3D::_update_selection_from_hover()
|
||||
{
|
||||
bool ctrl_pressed = wxGetKeyState(WXK_CONTROL);
|
||||
|
||||
@@ -381,7 +381,8 @@ class GLCanvas3D
|
||||
SomethingNotShown,
|
||||
ObjectClashed,
|
||||
GCodeConflict,
|
||||
ToolHeightOutside
|
||||
ToolHeightOutside,
|
||||
SpiralLiftNearBoundary // Snapmaker: 螺旋抬升靠近边界警告
|
||||
};
|
||||
|
||||
class RenderStats
|
||||
@@ -1238,6 +1239,8 @@ private:
|
||||
void _set_warning_notification(EWarning warning, bool state);
|
||||
|
||||
bool _is_any_volume_outside() const;
|
||||
// Snapmaker: 检查是否有任何 volume 靠近边界（螺旋抬升风险）
|
||||
bool _is_any_volume_near_boundary_for_spiral_lift() const;
|
||||
|
||||
// updates the selection from the content of m_hover_volume_idxs
|
||||
void _update_selection_from_hover();
|
||||
|
||||
Reference in New Issue
Block a user