Circuits-dat/logic-dat/Logic-level-shifter-dat/2026-01-31-13-07-52.png
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Circuits-dat/logic-dat/Logic-level-shifter-dat/Logic-level-shifter-dat.md
... ...
@@ -1,6 +1,9 @@
1 1
2 2
# Logic-shifter-dat
3 3
4
+
5
+
6
+
4 7
## board
5 8
6 9
- [[MSP1007-dat]]
... ...
@@ -76,9 +79,9 @@ Make sure the VCCA ≤VCCB.
76 79
77 80
![](2026-01-19-13-32-40.png)
78 81
82
+3.3V tolerant to [[RPI-SBC-dat]]
79 83
80
-
81
-
84
+![](2026-01-31-13-07-52.png)
82 85
83 86
84 87
## unsort
PCB-dat/PCB-design-dat/PCB-design-dat.md
... ...
@@ -3,7 +3,9 @@
3 3
4 4
- [[PCB-design]] - [[PCB]]
5 5
6
-- [[PCB-design-basic-dat]] - [[PCB-design-stack-dat]]
6
+- [[PCB-design-basic-dat]] - [[PCB-design-stack-dat]] - [[peripherals-dat]]
7
+
8
+
7 9
8 10
- [[PCB-dat]]
9 11
Tech-dat/Interface-dat/Serial-dat/Serial-dat.md
... ...
@@ -45,7 +45,7 @@ from the perspective of the cable to the perspective of the target
45 45
46 46
- [[CP2102-dat]] - [[DPR1003-dat]], [[DPR1005-dat]] == replaceable by [[WCH-dat]]
47 47
48
-- [[CP2104-dat/CP2104-dat]]
48
+- [[CP2104-dat]]
49 49
50 50
- [[FT232-dat]] - [[DPR1029-dat]] - [[FTDI-dat]]
51 51
Tech-dat/peripherals-dat/peripherals-dat.md
... ...
@@ -2,7 +2,7 @@
2 2
# peripherals-dat
3 3
4 4
5
-
5
+- [[PCB-design-dat]] - [[peripherals-dat]]
6 6
7 7
- [[interface-dat]]
8 8
mechanics-dat/mechanical-structure-dat/frame-profile-dat/2026-01-31-14-23-35.png
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mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/ALU-extrusion-1515-sys-dat/ALU-extrusion-1515-sys-dat.md
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@@ -0,0 +1,37 @@
1
+
2
+# ALU-extrusion-1515-sys-dat
3
+
4
+
5
+## accessories
6
+
7
+- [[Profile-Bracket-dat]] - [[Profile-Angle-dat]]
8
+
9
+
10
+### extra profiles:
11
+
12
+- 15x15
13
+
14
+thickness version 1.0 mm, other versions include 1.5 mm, 0.8 mm
15
+
16
+![](2025-02-19-14-30-08.png)
17
+
18
+
19
+profile center hole 3.3 mm
20
+
21
+![](2025-02-19-14-31-59.png)
22
+
23
+
24
+
25
+
26
+## baba-hao
27
+
28
+- [[waterproof]]
29
+
30
+https://cad.onshape.com/documents/347c235acb7b3e9f2a3c1f2a/w/326f6dc5e165bd0946fc1c4f/e/68a18b214d8e792586952603
31
+
32
+
33
+## ref
34
+
35
+- [[ALU-extrusion-1515-sys]]
36
+
37
+- [[alu-extrusion-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/ALU-extrusion-2040-sys-dat/ALU-extrusion-2040-sys-dat.md
... ...
@@ -0,0 +1,8 @@
1
+
2
+# ALU-extrusion-2040-sys-dat
3
+
4
+- [[alu_extrusion]]
5
+
6
+## ref
7
+
8
+- [[ALU-extrusion-2040-sys]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/Profile-Angle-dat/2025-02-19-13-49-22.png
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mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/Profile-Angle-dat/Profile-Angle-dat.md
... ...
@@ -0,0 +1,51 @@
1
+
2
+# Profile-Angle-dat
3
+
4
+### Profile Angle == 角码
5
+
6
+
7
+
8
+### 1515
9
+
10
+![](2025-11-21-17-25-03.png)
11
+
12
+- 20 x 20 x width 15
13
+- internal width == 11 for [[washer-dat]]
14
+- hole == 4.8 mm
15
+
16
+
17
+
18
+### type: 2020
19
+
20
+width == 20
21
+
22
+![](2025-02-19-13-49-22.png)
23
+
24
+![](2025-03-20-14-51-11.png)
25
+
26
+
27
+
28
+## installation
29
+
30
+![](2025-11-21-16-58-15.png)
31
+
32
+![](2025-11-21-16-58-32.png)
33
+
34
+![](2025-11-21-16-58-59.png)
35
+
36
+- t-nut
37
+- screw
38
+- washers
39
+
40
+| components | specs |
41
+| ------------------ | ----- |
42
+| angle | 1515 |
43
+| t-nut | 15M4 |
44
+| hex [[screw-dat]] | |
45
+| washers | |
46
+
47
+
48
+
49
+## ref
50
+
51
+- [[alu-extrusion-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/Profile-Bracket-dat/2025-02-19-13-48-31.png
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mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/Profile-Bracket-dat/Profile-Bracket-dat.md
... ...
@@ -0,0 +1,18 @@
1
+
2
+# Profile-Bracket-dat
3
+
4
+### Profile Bracket
5
+
6
+L-type
7
+
8
+![](2025-02-19-13-48-31.png)
9
+
10
+L and T type Bracket for 4040
11
+
12
+![](2025-02-26-19-29-48.png)
13
+
14
+L and T type Bracket for 2020
15
+
16
+![](2025-02-19-17-50-13.png)
17
+
18
+
mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/alu-extrusion-dat.md
... ...
@@ -0,0 +1,90 @@
1
+
2
+# Alu-Extrusion-dat
3
+
4
+
5
+- [[Alu-Extrusion]] - [[screw-dat]] - [[t-nut-dat]]
6
+
7
+- [[case-aluminium-extrusion-dat]]
8
+
9
+
10
+- [[ALU-extrusion-1515-sys-dat]]
11
+
12
+
13
+### aluminum profile
14
+
15
+3030 Profile: This refers to an aluminum profile that is 30mm x 30mm in cross-section.
16
+- It is often used for smaller frames, workstations, and lighter structural applications.
17
+
18
+4040 Profile: This refers to an aluminum profile that is 40mm x 40mm in cross-section.
19
+- It is typically used for slightly larger and more robust frames and structures, ideal for heavier-duty applications or larger equipment.
20
+
21
+
22
+
23
+
24
+
25
+## Aluminum Extrusion Profiles
26
+
27
+| Profile Type | Dimensions (mm) | Typical Applications |
28
+| ------------ | --------------- | ----------------------------------------------------------- |
29
+| 2020 | 20x20 | Lightweight frames, 3D printer structures, enclosures |
30
+| 2040 | 20x40 | Machine guards, small CNC frames, automation projects |
31
+| 3030 | 30x30 | Medium-duty frames, workbenches, conveyor systems |
32
+| 3060 | 30x60 | Robot frames, furniture, machine structures |
33
+| 4040 | 40x40 | Industrial automation, machine bases, heavy-duty structures |
34
+| 4080 | 40x80 | Large machine frames, CNC machines, conveyor systems |
35
+| 4545 | 45x45 | High-strength structures, machine enclosures |
36
+| 4590 | 45x90 | Industrial racking, automation systems |
37
+| 5050 | 50x50 | Structural supports, high-load frames |
38
+| 6060 | 60x60 | Heavy-duty machine frames, CNC enclosures |
39
+| 8080 | 80x80 | Large industrial structures, load-bearing frames |
40
+
41
+
42
+### 2020
43
+
44
+M3 T-nut + M3*10
45
+
46
+
47
+
48
+
49
+### 4040 dual groove
50
+
51
+![](2025-02-26-19-36-59.png)
52
+
53
+![](2025-02-26-19-37-15.png)
54
+
55
+groove size 5.5 mm
56
+
57
+
58
+
59
+### 2040
60
+
61
+- version: 2024L, 2040V
62
+
63
+![](2025-02-19-14-33-26.png)
64
+
65
+## Accessories
66
+
67
+| ALU Profile | T-nut Type | T-nut Size | Screw Type | Screw Size | Common Lengths |
68
+| ----------- | ---------- | ---------- | ---------- | ---------- | ---------------------- |
69
+| 1515 | T-nut | M5 | Bolt | M5 | 10mm, 20mm, 30mm |
70
+| 2020 | T-nut | M5 | Bolt | M5 | 10mm, 20mm, 30mm |
71
+| 4040 | T-nut | M6 | Bolt | M6 | 10mm, 20mm, 30mm, 40mm |
72
+
73
+
74
+If you want to use M3 screws with larger extrusions like 1515, 2020, or 4040, you would need to check if there are smaller T-nuts available for those profiles that are designed to accept M3 screws. Generally, M5 or M6 screws are more common in those sizes.
75
+
76
+
77
+
78
+
79
+
80
+## APP
81
+
82
+![](2025-02-26-19-39-21.png)
83
+
84
+
85
+
86
+## ref
87
+
88
+- [[mechanics-dat]] - [[mechanics]]
89
+
90
+- [[Alu-Extrusion]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/case-aluminium-extrusion-dat/case-aluminium-extrusion-dat.md
... ...
@@ -0,0 +1,15 @@
1
+
2
+# case-aluminium-extrusion-dat
3
+
4
+- [[Alu-Extrusion-dat]]
5
+
6
+- [[PENS010-dat]]
7
+
8
+
9
+
10
+
11
+
12
+
13
+## ref
14
+
15
+- [[case-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/profile-t-nut-dat/2025-11-21-17-21-55.png
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mechanics-dat/mechanical-structure-dat/frame-profile-dat/alu-extrusion-dat/profile-t-nut-dat/profile-t-nut-dat.md
... ...
@@ -0,0 +1,16 @@
1
+
2
+# profile-t-nut-dat
3
+
4
+## 1515M4
5
+
6
+![](2025-11-21-17-21-55.png)
7
+
8
+- L == 8.5 mm - W == 6 mm - T == 2.4 mm
9
+
10
+
11
+
12
+
13
+
14
+## ref
15
+
16
+- [[alu-extrusion-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/frame-profile-dat/frame-profile-dat.md
... ...
@@ -0,0 +1,24 @@
1
+
2
+# frame-profile-dat
3
+
4
+
5
+
6
+
7
+- [[alu-extrusion-dat]]
8
+
9
+- [[steel-angle-dat]]
10
+
11
+
12
+## other frame profile
13
+
14
+U-type 2.0mm thickness
15
+
16
+![](2026-01-31-14-23-35.png)
17
+
18
+
19
+
20
+
21
+
22
+## ref
23
+
24
+- [[profile]] - [[mechanics]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/frame-profile-dat/steel-angle-dat/2025-12-18-14-57-25.png
... ...
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... ...
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mechanics-dat/mechanical-structure-dat/frame-profile-dat/steel-angle-dat/steel-angle-dat.md
... ...
@@ -0,0 +1,100 @@
1
+
2
+# steel-angle-dat
3
+
4
+- L-shaped steel
5
+
6
+
7
+## tools
8
+
9
+![](2025-12-18-14-57-25.png)
10
+
11
+![](2025-12-18-14-57-46.png)
12
+
13
+
14
+
15
+## 切割 **角铁型材（L 型钢）** 的常用工具与选择建议 cutting
16
+
17
+> 适用于 **普通碳钢角铁 / 不锈钢角铁**
18
+> 常见规格：20×20 / 30×30 / 40×40，厚度 2–5 mm
19
+
20
+---
21
+
22
+## ✅ 最推荐（安全 & 切口好）
23
+
24
+### 1️⃣ **冷切锯 / 金属切割锯（Cold Cut Saw）**
25
+- 使用 **钢材 / 不锈钢专用 TCT 锯片**
26
+- 切口垂直、毛刺少
27
+- 不易烧蓝、尺寸准
28
+- 适合 **直切 / 45° 角切**
29
+
30
+✅ **最佳车间方案**
31
+
32
+---
33
+
34
+### 2️⃣ **金属带锯（Metal Band Saw）**
35
+- 安全、稳定
36
+- 适合厚角铁、不锈钢
37
+- 可连续批量切割
38
+- 速度中等
39
+
40
+---
41
+
42
+## ⚠️ 常见且可行（DIY 最普遍）
43
+
44
+### 3️⃣ **角磨机 + 金属切割片**
45
+- 切割片：**1.0–1.2 mm（Inox / Steel）**
46
+- 适合直切、现场施工
47
+- 切口粗，需要后处理
48
+
49
+⚠️ 要点：
50
+- 必须 **夹紧角铁**
51
+- **两边分次切**，避免夹刀
52
+- 火花多，注意防护
53
+
54
+---
55
+
56
+### 4️⃣ **台式切割机 / 切断锯（Chop Saw）**
57
+- 适合直线切割
58
+- 噪音大、火花多
59
+- 精度一般
60
+
61
+---
62
+
63
+## 🐢 慢但可控（小尺寸 / 少量）
64
+
65
+### 5️⃣ **手动弓锯（Hacksaw）**
66
+- 锯条：**18–24 TPI**
67
+- 成本低、安全
68
+- 适合 2–3 mm 厚角铁
69
+
70
+---
71
+
72
+### 6️⃣ **往复锯（Reciprocating Saw）**
73
+- 使用 **金属专用锯条**
74
+- 切口一般
75
+- 振动大，需固定牢靠
76
+
77
+---
78
+
79
+## ❌ 不适合 / 不安全
80
+- ❌ 木工台锯
81
+- ❌ 木工圆锯片
82
+- ❌ 超薄 HSS 圆锯片 + 高转速设备
83
+- ❌ 曲线锯（对角铁稳定性差）
84
+
85
+---
86
+
87
+## 🔧 角铁切割小技巧
88
+- **先切一边，再切另一边**
89
+- 切 90° 要用 **靠山或限位**
90
+- 不锈钢角铁：
91
+ - 速度慢一点
92
+ - 可少量切削液，防烧蓝
93
+- 切后用 **百叶片 / 砂轮** 去毛刺
94
+
95
+
96
+
97
+
98
+## ref
99
+
100
+- [[steel-angle]] - [[profile-dat]] - [[profile]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/mechanical-structure-dat.md
... ...
@@ -13,7 +13,7 @@
13 13
14 14
- [[cable-dat]] - [[wire-steel-dat]]
15 15
16
-
16
+- [[frame-dat]]
17 17
18 18
- [[sheet-dat]] - [[rod-system-dat]] == [[flange-dat]]
19 19
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/2025-02-19-14-33-26.png
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mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/ALU-extrusion-1515-sys-dat/ALU-extrusion-1515-sys-dat.md
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@@ -1,37 +0,0 @@
1
-
2
-# ALU-extrusion-1515-sys-dat
3
-
4
-
5
-## accessories
6
-
7
-- [[Profile-Bracket-dat]] - [[Profile-Angle-dat]]
8
-
9
-
10
-### extra profiles:
11
-
12
-- 15x15
13
-
14
-thickness version 1.0 mm, other versions include 1.5 mm, 0.8 mm
15
-
16
-![](2025-02-19-14-30-08.png)
17
-
18
-
19
-profile center hole 3.3 mm
20
-
21
-![](2025-02-19-14-31-59.png)
22
-
23
-
24
-
25
-
26
-## baba-hao
27
-
28
-- [[waterproof]]
29
-
30
-https://cad.onshape.com/documents/347c235acb7b3e9f2a3c1f2a/w/326f6dc5e165bd0946fc1c4f/e/68a18b214d8e792586952603
31
-
32
-
33
-## ref
34
-
35
-- [[ALU-extrusion-1515-sys]]
36
-
37
-- [[alu-extrusion-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/ALU-extrusion-2040-sys-dat/ALU-extrusion-2040-sys-dat.md
... ...
@@ -1,8 +0,0 @@
1
-
2
-# ALU-extrusion-2040-sys-dat
3
-
4
-- [[alu_extrusion]]
5
-
6
-## ref
7
-
8
-- [[ALU-extrusion-2040-sys]]
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\ No newline at end of file
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/Profile-Angle-dat/2025-02-19-13-49-22.png
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mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/Profile-Angle-dat/Profile-Angle-dat.md
... ...
@@ -1,51 +0,0 @@
1
-
2
-# Profile-Angle-dat
3
-
4
-### Profile Angle == 角码
5
-
6
-
7
-
8
-### 1515
9
-
10
-![](2025-11-21-17-25-03.png)
11
-
12
-- 20 x 20 x width 15
13
-- internal width == 11 for [[washer-dat]]
14
-- hole == 4.8 mm
15
-
16
-
17
-
18
-### type: 2020
19
-
20
-width == 20
21
-
22
-![](2025-02-19-13-49-22.png)
23
-
24
-![](2025-03-20-14-51-11.png)
25
-
26
-
27
-
28
-## installation
29
-
30
-![](2025-11-21-16-58-15.png)
31
-
32
-![](2025-11-21-16-58-32.png)
33
-
34
-![](2025-11-21-16-58-59.png)
35
-
36
-- t-nut
37
-- screw
38
-- washers
39
-
40
-| components | specs |
41
-| ------------------ | ----- |
42
-| angle | 1515 |
43
-| t-nut | 15M4 |
44
-| hex [[screw-dat]] | |
45
-| washers | |
46
-
47
-
48
-
49
-## ref
50
-
51
-- [[alu-extrusion-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/Profile-Bracket-dat/2025-02-19-13-48-31.png
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@@ -1,18 +0,0 @@
1
-
2
-# Profile-Bracket-dat
3
-
4
-### Profile Bracket
5
-
6
-L-type
7
-
8
-![](2025-02-19-13-48-31.png)
9
-
10
-L and T type Bracket for 4040
11
-
12
-![](2025-02-26-19-29-48.png)
13
-
14
-L and T type Bracket for 2020
15
-
16
-![](2025-02-19-17-50-13.png)
17
-
18
-
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/alu-extrusion-dat.md
... ...
@@ -1,90 +0,0 @@
1
-
2
-# Alu-Extrusion-dat
3
-
4
-
5
-- [[Alu-Extrusion]] - [[screw-dat]] - [[t-nut-dat]]
6
-
7
-- [[case-aluminium-extrusion-dat]]
8
-
9
-
10
-- [[ALU-extrusion-1515-sys-dat]]
11
-
12
-
13
-### aluminum profile
14
-
15
-3030 Profile: This refers to an aluminum profile that is 30mm x 30mm in cross-section.
16
-- It is often used for smaller frames, workstations, and lighter structural applications.
17
-
18
-4040 Profile: This refers to an aluminum profile that is 40mm x 40mm in cross-section.
19
-- It is typically used for slightly larger and more robust frames and structures, ideal for heavier-duty applications or larger equipment.
20
-
21
-
22
-
23
-
24
-
25
-## Aluminum Extrusion Profiles
26
-
27
-| Profile Type | Dimensions (mm) | Typical Applications |
28
-| ------------ | --------------- | ----------------------------------------------------------- |
29
-| 2020 | 20x20 | Lightweight frames, 3D printer structures, enclosures |
30
-| 2040 | 20x40 | Machine guards, small CNC frames, automation projects |
31
-| 3030 | 30x30 | Medium-duty frames, workbenches, conveyor systems |
32
-| 3060 | 30x60 | Robot frames, furniture, machine structures |
33
-| 4040 | 40x40 | Industrial automation, machine bases, heavy-duty structures |
34
-| 4080 | 40x80 | Large machine frames, CNC machines, conveyor systems |
35
-| 4545 | 45x45 | High-strength structures, machine enclosures |
36
-| 4590 | 45x90 | Industrial racking, automation systems |
37
-| 5050 | 50x50 | Structural supports, high-load frames |
38
-| 6060 | 60x60 | Heavy-duty machine frames, CNC enclosures |
39
-| 8080 | 80x80 | Large industrial structures, load-bearing frames |
40
-
41
-
42
-### 2020
43
-
44
-M3 T-nut + M3*10
45
-
46
-
47
-
48
-
49
-### 4040 dual groove
50
-
51
-![](2025-02-26-19-36-59.png)
52
-
53
-![](2025-02-26-19-37-15.png)
54
-
55
-groove size 5.5 mm
56
-
57
-
58
-
59
-### 2040
60
-
61
-- version: 2024L, 2040V
62
-
63
-![](2025-02-19-14-33-26.png)
64
-
65
-## Accessories
66
-
67
-| ALU Profile | T-nut Type | T-nut Size | Screw Type | Screw Size | Common Lengths |
68
-| ----------- | ---------- | ---------- | ---------- | ---------- | ---------------------- |
69
-| 1515 | T-nut | M5 | Bolt | M5 | 10mm, 20mm, 30mm |
70
-| 2020 | T-nut | M5 | Bolt | M5 | 10mm, 20mm, 30mm |
71
-| 4040 | T-nut | M6 | Bolt | M6 | 10mm, 20mm, 30mm, 40mm |
72
-
73
-
74
-If you want to use M3 screws with larger extrusions like 1515, 2020, or 4040, you would need to check if there are smaller T-nuts available for those profiles that are designed to accept M3 screws. Generally, M5 or M6 screws are more common in those sizes.
75
-
76
-
77
-
78
-
79
-
80
-## APP
81
-
82
-![](2025-02-26-19-39-21.png)
83
-
84
-
85
-
86
-## ref
87
-
88
-- [[mechanics-dat]] - [[mechanics]]
89
-
90
-- [[Alu-Extrusion]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/case-aluminium-extrusion-dat/case-aluminium-extrusion-dat.md
... ...
@@ -1,15 +0,0 @@
1
-
2
-# case-aluminium-extrusion-dat
3
-
4
-- [[Alu-Extrusion-dat]]
5
-
6
-- [[PENS010-dat]]
7
-
8
-
9
-
10
-
11
-
12
-
13
-## ref
14
-
15
-- [[case-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/profile-t-nut-dat/2025-11-21-17-21-55.png
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@@ -1,16 +0,0 @@
1
-
2
-# profile-t-nut-dat
3
-
4
-## 1515M4
5
-
6
-![](2025-11-21-17-21-55.png)
7
-
8
-- L == 8.5 mm - W == 6 mm - T == 2.4 mm
9
-
10
-
11
-
12
-
13
-
14
-## ref
15
-
16
-- [[alu-extrusion-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/profile-dat/profile-dat.md
... ...
@@ -1,12 +0,0 @@
1
-
2
-# profile-dat.md
3
-
4
-- [[alu-extrusion-dat]]
5
-
6
-- [[steel-angle-dat]]
7
-
8
-
9
-
10
-## ref
11
-
12
-- [[profile]] - [[mechanics]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/profile-dat/steel-angle-dat/2025-12-18-14-57-25.png
... ...
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mechanics-dat/mechanical-structure-dat/profile-dat/steel-angle-dat/steel-angle-dat.md
... ...
@@ -1,100 +0,0 @@
1
-
2
-# steel-angle-dat
3
-
4
-- L-shaped steel
5
-
6
-
7
-## tools
8
-
9
-![](2025-12-18-14-57-25.png)
10
-
11
-![](2025-12-18-14-57-46.png)
12
-
13
-
14
-
15
-## 切割 **角铁型材（L 型钢）** 的常用工具与选择建议 cutting
16
-
17
-> 适用于 **普通碳钢角铁 / 不锈钢角铁**
18
-> 常见规格：20×20 / 30×30 / 40×40，厚度 2–5 mm
19
-
20
----
21
-
22
-## ✅ 最推荐（安全 & 切口好）
23
-
24
-### 1️⃣ **冷切锯 / 金属切割锯（Cold Cut Saw）**
25
-- 使用 **钢材 / 不锈钢专用 TCT 锯片**
26
-- 切口垂直、毛刺少
27
-- 不易烧蓝、尺寸准
28
-- 适合 **直切 / 45° 角切**
29
-
30
-✅ **最佳车间方案**
31
-
32
----
33
-
34
-### 2️⃣ **金属带锯（Metal Band Saw）**
35
-- 安全、稳定
36
-- 适合厚角铁、不锈钢
37
-- 可连续批量切割
38
-- 速度中等
39
-
40
----
41
-
42
-## ⚠️ 常见且可行（DIY 最普遍）
43
-
44
-### 3️⃣ **角磨机 + 金属切割片**
45
-- 切割片：**1.0–1.2 mm（Inox / Steel）**
46
-- 适合直切、现场施工
47
-- 切口粗，需要后处理
48
-
49
-⚠️ 要点：
50
-- 必须 **夹紧角铁**
51
-- **两边分次切**，避免夹刀
52
-- 火花多，注意防护
53
-
54
----
55
-
56
-### 4️⃣ **台式切割机 / 切断锯（Chop Saw）**
57
-- 适合直线切割
58
-- 噪音大、火花多
59
-- 精度一般
60
-
61
----
62
-
63
-## 🐢 慢但可控（小尺寸 / 少量）
64
-
65
-### 5️⃣ **手动弓锯（Hacksaw）**
66
-- 锯条：**18–24 TPI**
67
-- 成本低、安全
68
-- 适合 2–3 mm 厚角铁
69
-
70
----
71
-
72
-### 6️⃣ **往复锯（Reciprocating Saw）**
73
-- 使用 **金属专用锯条**
74
-- 切口一般
75
-- 振动大，需固定牢靠
76
-
77
----
78
-
79
-## ❌ 不适合 / 不安全
80
-- ❌ 木工台锯
81
-- ❌ 木工圆锯片
82
-- ❌ 超薄 HSS 圆锯片 + 高转速设备
83
-- ❌ 曲线锯（对角铁稳定性差）
84
-
85
----
86
-
87
-## 🔧 角铁切割小技巧
88
-- **先切一边，再切另一边**
89
-- 切 90° 要用 **靠山或限位**
90
-- 不锈钢角铁：
91
- - 速度慢一点
92
- - 可少量切削液，防烧蓝
93
-- 切后用 **百叶片 / 砂轮** 去毛刺
94
-
95
-
96
-
97
-
98
-## ref
99
-
100
-- [[steel-angle]] - [[profile-dat]] - [[profile]]
... ...
\ No newline at end of file