BOM-DAT/case-dat/case-led-dat/case-led-dat.md
... ...
@@ -17,6 +17,6 @@ case used by [[NWI1072-dat]] - [[NWI1126-dat]]
17 17
18 18
## ref
19 19
20
-- [[screws-dat]] - [[case-led]]
20
+- [[screw-dat]] - [[case-led]]
21 21
22 22
Board-dat/PMP/PMP1037-dat/PMP1037-dat.md
... ...
@@ -16,7 +16,7 @@ RPI with a magnetic stand holder M2 [[pmp1036-dat]]
16 16
17 17
18 18
19
-- [[screws-dat]] - [[magnet-dat]]
19
+- [[screw-dat]] - [[magnet-dat]]
20 20
21 21
22 22
## ref
Home.md
... ...
@@ -27,7 +27,7 @@
27 27
28 28
- [[circuits-dat]] - [[logic-dat]] - [[logic-gate-dat]] - [[buffer-dat]]
29 29
30
-- [[mechanics-dat]] - [[materials-dat]] - [[tools-dat]] - [[mechanical-tools-dat]] - [[engineering-dat]]
30
+- [[mechanics-dat]] - [[materials-dat]] - [[tools-dat]] - [[mechanical-tools-dat]] - [[engineering-dat]] - [[mechanical-structure-dat]] - [[shaft-dat]]
31 31
32 32
- [[BOM-DAT]] - [[case-dat]] - [[CONN-dat]] - [[BTB-dat]] - [[transistor-dat]] - [[diode-dat]] - [[resistor-dat]] - [[mosfet-dat]]
33 33
app-dat/PNP-openpnp-dat/PixiePlacer-dat/PixiePlacer-Frame-dat/PixiePlacer-Frame-dat.md
... ...
@@ -14,7 +14,7 @@
14 14
15 15
2. [[mechanics-dat]] - [[Linear-Rail-dat]]
16 16
17
-3. [[NUT-dat]] - [[screws-dat]]
17
+3. [[NUT-dat]] - [[screw-dat]]
18 18
19 19
4. electronics - [[power-supply-dat]] ..
20 20
... ...
@@ -83,7 +83,7 @@ Alu_L_Bracket == Joint Board Plate Corner Angle Bracket Connection Joint Strip
83 83
84 84
Alu_Angle == 2020 Aluminium Corner Bracket
85 85
86
-- [[Alu-Extrusion-dat]] - [[T-nut-dat]] - [[screws-dat]]
86
+- [[Alu-Extrusion-dat]] - [[T-nut-dat]] - [[screw-dat]]
87 87
88 88
### y axis
89 89
mechanics-dat/hex-key-dat/hex-key-dat.md
... ...
@@ -29,4 +29,4 @@ So you can say:
29 29
30 30
## ref
31 31
32
-- [[mechanics-dat]] - [[screws-dat]]
... ...
\ No newline at end of file
0
+- [[mechanics-dat]] - [[screw-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-parts-dat/Nut-dat/T-nut-dat/T-nut-dat.md
... ...
@@ -60,7 +60,7 @@ In summary, the locking effect is the result of the screw creating a compressive
60 60
61 61
### Hex Head (Hexagonal Head):
62 62
63
-- [[screws-dat]]
63
+- [[screw-dat]]
64 64
65 65
Description: A hexagonal-shaped head that requires a wrench or a socket driver for tightening.
66 66
mechanics-dat/mechanical-structure-dat/Shaft-dat/2025-12-30-14-08-06.png
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mechanics-dat/mechanical-structure-dat/Shaft-dat/Shaft-Cross-Connector-dat/2025-12-12-12-37-08.png
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mechanics-dat/mechanical-structure-dat/Shaft-dat/Shaft-Cross-Connector-dat/2025-12-12-12-37-18.png
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mechanics-dat/mechanical-structure-dat/Shaft-dat/Shaft-Cross-Connector-dat/2025-12-29-15-23-58.png
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mechanics-dat/mechanical-structure-dat/Shaft-dat/Shaft-Cross-Connector-dat/Shaft-Cross-Connector-dat.md
... ...
@@ -1,37 +0,0 @@
1
-
2
-# Shaft-Cross-Connector-dat
3
-
4
-![](2025-12-06-13-03-51.png)
5
-
6
-
7
-## types
8
-
9
-cross connector 1
10
-
11
-![](2025-12-10-01-53-28.png)
12
-
13
-cross connector 2 - customized locker
14
-
15
-![](2025-12-12-12-37-18.png)
16
-cross connector 3 - purpose for water tube
17
-
18
-![](2025-12-12-12-37-08.png)
19
-
20
-![](2025-12-29-15-23-58.png)
21
-
22
-
23
-
24
-
25
-## apps
26
-
27
-![](2025-12-10-01-52-10.png)
28
-
29
-![](2025-12-10-01-52-28.png)
30
-
31
-
32
-
33
-
34
-
35
-## ref
36
-
37
-- [[shaft-dat]] - [[shaft]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/Shaft-dat/Shaft-dat.md
... ...
@@ -2,18 +2,7 @@
2 2
3 3
- [[mechanical-structure-dat]] - [[materials-dat]]
4 4
5
-## shaft connector
6
-
7
-- [[rivet-dat]] - [[screws-dat]]
8
-
9
-
10
-✅ 方案 3：钎焊 / 焊接（非烙铁）
11
-
12
-铝钎焊（>500°C）
13
-
14
-激光焊 / TIG（专业设备）
15
-
16
-⚠️ 这是完全不同工艺，非 DIY 范畴
5
+- [[shaft-connection-dat]]
17 6
18 7
19 8
## dimension
... ...
@@ -111,24 +100,7 @@ How to make it safer
111 100
112 101
113 102
114
-## shaft connection
115
-
116
-### large tube hold small shaft
117
-
118
-三、可行的解决方案
119
-方案 1：开槽 + 喉箍（薄壁首选）
120
-
121
-薄壁 1.5 mm 攻丝不可靠
122
-
123
-改用喉箍或外夹方式
124
-
125
-可加 2 条喉箍提高稳定性
126
-
127
-methods
128
-
129
-![](2025-12-30-14-08-06.png)
130
-
131
-
132 103
## ref
133 104
134 105
- [[rod-system-dat]]
106
+![shaft-connection-dat/2025-12-30-14-08-06.png](shaft-connection-dat/2025-12-30-14-08-06.png)
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/Shaft-dat/rod-dat/carbon-rods-dat/carbon-rods-dat.md
... ...
@@ -1,68 +0,0 @@
1
-
2
-# carbon-rods-dat
3
-
4
-**Carbon rods** (also called **carbon fiber rods**) are lightweight, high-strength structural components widely used in radio-controlled (RC) aircraft, gliders, multirotors, and other hobby models.
5
-
6
----
7
-
8
-## 1. What Are Carbon Rods?
9
-Carbon rods are made from **carbon fiber strands** bonded together with epoxy resin.
10
-They are extremely **strong**, **rigid**, and **lightweight**, making them ideal for structural reinforcement in model aircraft.
11
-
12
----
13
-
14
-## 2. Key Features
15
-- **High strength-to-weight ratio**
16
-- **Very stiff** (excellent for wings and fuselage reinforcement)
17
-- **Corrosion-resistant**
18
-- **Lightweight compared to metal rods**
19
-- **Does not warp with humidity or temperature changes**
20
-
21
----
22
-
23
-## 3. Common Shapes
24
-1. **Solid round rods**
25
- - Used for spars, pushrods, and general reinforcement
26
-2. **Hollow tubes**
27
- - Lighter than solid rods, used for wing spars or long stiff beams
28
-3. **Flat strips (carbon plates)**
29
- - Used to strengthen fuselage sides, wing trailing edges, or control surfaces
30
-
31
----
32
-
33
-## 4. Typical Uses in RC Aircraft
34
-- **Wing spars** (main structural support inside the wing)
35
-- **Fuselage reinforcement**
36
-- **Tail boom structures**
37
-- **Control pushrods**
38
-- **Motor mounts** (for lightweight electric planes)
39
-- **FPV plane rigidity enhancement**
40
-
41
----
42
-
43
-## 5. Advantages in RC Models
44
-- Provides **rigidity** without adding much weight
45
-- Greatly increases **structural strength**
46
-- Helps prevent wing flex at high speeds
47
-- Improves flight precision and durability
48
-
49
----
50
-
51
-## 6. Adhesives and Bonding
52
-Compatible glues include:
53
-- **Epoxy**
54
-- **CA glue (foam-safe when used on foam models)**
55
-- **UHU POR** (for foam aircraft)
56
-
57
-Avoid using general hot-melt glue for critical structural joints — it adds weight and low bonding strength.
58
-
59
----
60
-
61
-## 7. Common Diameters
62
-- **1mm – 3mm:** pushrods, small wings
63
-- **3mm – 6mm:** wing spars, fuselage reinforcement
64
-- **6mm – 10mm:** large wings and long FPV platforms
65
-
66
-## ref
67
-
68
-- [[rod-system-dat]] - [[materials-dat]] - [[carbon-rods-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/Shaft-dat/rod-dat/rod-carbon-dat/rod-carbon-dat.md
... ...
@@ -0,0 +1,68 @@
1
+
2
+# carbon-rods-dat
3
+
4
+**Carbon rods** (also called **carbon fiber rods**) are lightweight, high-strength structural components widely used in radio-controlled (RC) aircraft, gliders, multirotors, and other hobby models.
5
+
6
+---
7
+
8
+## 1. What Are Carbon Rods?
9
+Carbon rods are made from **carbon fiber strands** bonded together with epoxy resin.
10
+They are extremely **strong**, **rigid**, and **lightweight**, making them ideal for structural reinforcement in model aircraft.
11
+
12
+---
13
+
14
+## 2. Key Features
15
+- **High strength-to-weight ratio**
16
+- **Very stiff** (excellent for wings and fuselage reinforcement)
17
+- **Corrosion-resistant**
18
+- **Lightweight compared to metal rods**
19
+- **Does not warp with humidity or temperature changes**
20
+
21
+---
22
+
23
+## 3. Common Shapes
24
+1. **Solid round rods**
25
+ - Used for spars, pushrods, and general reinforcement
26
+2. **Hollow tubes**
27
+ - Lighter than solid rods, used for wing spars or long stiff beams
28
+3. **Flat strips (carbon plates)**
29
+ - Used to strengthen fuselage sides, wing trailing edges, or control surfaces
30
+
31
+---
32
+
33
+## 4. Typical Uses in RC Aircraft
34
+- **Wing spars** (main structural support inside the wing)
35
+- **Fuselage reinforcement**
36
+- **Tail boom structures**
37
+- **Control pushrods**
38
+- **Motor mounts** (for lightweight electric planes)
39
+- **FPV plane rigidity enhancement**
40
+
41
+---
42
+
43
+## 5. Advantages in RC Models
44
+- Provides **rigidity** without adding much weight
45
+- Greatly increases **structural strength**
46
+- Helps prevent wing flex at high speeds
47
+- Improves flight precision and durability
48
+
49
+---
50
+
51
+## 6. Adhesives and Bonding
52
+Compatible glues include:
53
+- **Epoxy**
54
+- **CA glue (foam-safe when used on foam models)**
55
+- **UHU POR** (for foam aircraft)
56
+
57
+Avoid using general hot-melt glue for critical structural joints — it adds weight and low bonding strength.
58
+
59
+---
60
+
61
+## 7. Common Diameters
62
+- **1mm – 3mm:** pushrods, small wings
63
+- **3mm – 6mm:** wing spars, fuselage reinforcement
64
+- **6mm – 10mm:** large wings and long FPV platforms
65
+
66
+## ref
67
+
68
+- [[rod-system-dat]] - [[materials-dat]] - [[carbon-rods-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/Shaft-dat/rod-dat/rod-stainless-steel-solid-dat/rod-stainless-steel-solid-dat.md
... ...
@@ -0,0 +1,69 @@
1
+
2
+# stainless-steel-solid-rod-dat
3
+
4
+## 切割 **6 mm 不锈钢实心棒** 可用的工具（按安全 & 效率排序）
5
+
6
+### ✅ 最推荐（安全、切口好）
7
+1. **金属带锯（Metal band saw）**
8
+ - 最稳妥、反弹风险低
9
+ - 切口垂直、毛刺少
10
+ - 适合连续、多根切割
11
+
12
+2. **冷切锯 / 金属切割锯（Cold cut saw）**
13
+ - 使用 **不锈钢专用 TCT 锯片**
14
+ - 切口非常平整
15
+ - 速度快，但设备成本较高
16
+
17
+---
18
+
19
+### ⚠️ 可用（需注意操作）
20
+3. **角磨机 + 不锈钢切割片**
21
+ - 常见、便宜
22
+ - 切口粗，需要后续打磨
23
+ - ⚠️ 必须夹紧工件，戴护目镜
24
+
25
+4. **台式切割机（Cut-off saw / Chop saw）**
26
+ - 用 **不锈钢切割片**
27
+ - 噪音大、火花多
28
+ - 精度一般
29
+
30
+---
31
+
32
+### 🐢 手动 / 低速方案
33
+5. **手动弓锯（Hacksaw，24–32 TPI）**
34
+ - 成本最低
35
+ - 适合少量或精细控制
36
+ - 慢但安全
37
+
38
+- [[hand-Hacksaw-dat]] - [[tools-hand-dat]]
39
+
40
+
41
+6. **台钻 + 切割附件（不推荐为主方案）**
42
+ - 可行但效率低
43
+ - 对准和夹持要求高
44
+
45
+---
46
+
47
+## ❌ 不适合 / 不安全
48
+- ❌ **木工台锯**
49
+- ❌ **木工圆锯片**
50
+- ❌ **高速钢薄圆锯片（用于台锯/角磨机）**
51
+- ❌ **曲线锯（易断条）**
52
+
53
+---
54
+
55
+## 🔧 锯片 / 切割片选择要点
56
+- 标注：**Stainless Steel / Inox**
57
+- 切割片厚度：**1.0–1.2 mm**
58
+- 若用带锯：**14–18 TPI** 适合 6 mm 实心棒
59
+- 允许的话：**少量切削液** 可明显降温、延长寿命
60
+
61
+---
62
+
63
+## 一句话建议
64
+> **最佳选择：金属带锯**
65
+> **最普遍可行：角磨机 + 不锈钢切割片**
66
+
67
+## ref
68
+
69
+- [[grinder-angle-dat]]
mechanics-dat/mechanical-structure-dat/Shaft-dat/rod-dat/stainless-steel-solid-rod-dat/stainless-steel-solid-rod-dat.md
... ...
@@ -1,69 +0,0 @@
1
-
2
-# stainless-steel-solid-rod-dat
3
-
4
-## 切割 **6 mm 不锈钢实心棒** 可用的工具（按安全 & 效率排序）
5
-
6
-### ✅ 最推荐（安全、切口好）
7
-1. **金属带锯（Metal band saw）**
8
- - 最稳妥、反弹风险低
9
- - 切口垂直、毛刺少
10
- - 适合连续、多根切割
11
-
12
-2. **冷切锯 / 金属切割锯（Cold cut saw）**
13
- - 使用 **不锈钢专用 TCT 锯片**
14
- - 切口非常平整
15
- - 速度快，但设备成本较高
16
-
17
----
18
-
19
-### ⚠️ 可用（需注意操作）
20
-3. **角磨机 + 不锈钢切割片**
21
- - 常见、便宜
22
- - 切口粗，需要后续打磨
23
- - ⚠️ 必须夹紧工件，戴护目镜
24
-
25
-4. **台式切割机（Cut-off saw / Chop saw）**
26
- - 用 **不锈钢切割片**
27
- - 噪音大、火花多
28
- - 精度一般
29
-
30
----
31
-
32
-### 🐢 手动 / 低速方案
33
-5. **手动弓锯（Hacksaw，24–32 TPI）**
34
- - 成本最低
35
- - 适合少量或精细控制
36
- - 慢但安全
37
-
38
-- [[hand-Hacksaw-dat]] - [[tools-hand-dat]]
39
-
40
-
41
-6. **台钻 + 切割附件（不推荐为主方案）**
42
- - 可行但效率低
43
- - 对准和夹持要求高
44
-
45
----
46
-
47
-## ❌ 不适合 / 不安全
48
-- ❌ **木工台锯**
49
-- ❌ **木工圆锯片**
50
-- ❌ **高速钢薄圆锯片（用于台锯/角磨机）**
51
-- ❌ **曲线锯（易断条）**
52
-
53
----
54
-
55
-## 🔧 锯片 / 切割片选择要点
56
-- 标注：**Stainless Steel / Inox**
57
-- 切割片厚度：**1.0–1.2 mm**
58
-- 若用带锯：**14–18 TPI** 适合 6 mm 实心棒
59
-- 允许的话：**少量切削液** 可明显降温、延长寿命
60
-
61
----
62
-
63
-## 一句话建议
64
-> **最佳选择：金属带锯**
65
-> **最普遍可行：角磨机 + 不锈钢切割片**
66
-
67
-## ref
68
-
69
-- [[grinder-angle-dat]]
mechanics-dat/mechanical-structure-dat/Shaft-dat/rod-dat/tube-oval-dat/2025-12-29-14-50-01.png
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mechanics-dat/mechanical-structure-dat/Shaft-dat/rod-dat/tube-oval-dat/tube-oval-dat.md
... ...
@@ -1,12 +0,0 @@
1
-
2
-# tube-oval-dat
3
-
4
-- oval tube
5
-
6
-![](2025-12-29-14-50-01.png)
7
-
8
-![](2025-12-29-14-50-15.png)
9
-
10
-## ref
11
-
12
-- [[tube-oval]] - [[rod]]
... ...
\ No newline at end of file
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mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-connection-dat/Shaft-Cross-Connector-dat/Shaft-Cross-Connector-dat.md
... ...
@@ -0,0 +1,37 @@
1
+
2
+# Shaft-Cross-Connector-dat
3
+
4
+![](2025-12-06-13-03-51.png)
5
+
6
+
7
+## types
8
+
9
+cross connector 1
10
+
11
+![](2025-12-10-01-53-28.png)
12
+
13
+cross connector 2 - customized locker
14
+
15
+![](2025-12-12-12-37-18.png)
16
+cross connector 3 - purpose for water tube
17
+
18
+![](2025-12-12-12-37-08.png)
19
+
20
+![](2025-12-29-15-23-58.png)
21
+
22
+
23
+
24
+
25
+## apps
26
+
27
+![](2025-12-10-01-52-10.png)
28
+
29
+![](2025-12-10-01-52-28.png)
30
+
31
+
32
+
33
+
34
+
35
+## ref
36
+
37
+- [[shaft-dat]] - [[shaft]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-connection-dat/shaft-connection-dat.md
... ...
@@ -0,0 +1,50 @@
1
+
2
+# shaft-connection-dat
3
+
4
+- [[Shaft-Cross-Connector-dat]] - [[shaft-coupler-dat]]
5
+
6
+- [[shaft-dat]]
7
+
8
+## connection methods
9
+
10
+- [[screw-dat]]
11
+
12
+- [[thread-dat]]
13
+
14
+- [[rivet-dat]] - [[screw-dat]]
15
+
16
+
17
+### 方案 3：钎焊 / 焊接（非烙铁）
18
+
19
+铝钎焊（>500°C）
20
+
21
+激光焊 / TIG（专业设备）
22
+
23
+⚠️ 这是完全不同工艺，非 DIY 范畴
24
+
25
+
26
+
27
+### large tube hold small shaft
28
+
29
+三、可行的解决方案
30
+方案 1：开槽 + 喉箍（薄壁首选）
31
+
32
+薄壁 1.5 mm 攻丝不可靠
33
+
34
+改用喉箍或外夹方式
35
+
36
+可加 2 条喉箍提高稳定性
37
+
38
+
39
+### round-ball locking system
40
+
41
+methods
42
+
43
+![](2025-12-30-14-08-06.png)
44
+
45
+
46
+
47
+
48
+## ref
49
+
50
+- [[shaft-dat]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-connection-dat/shaft-coupler-dat/2025-12-10-02-15-17.png
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mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-connection-dat/shaft-coupler-dat/shaft-coupler-dat.md
... ...
@@ -0,0 +1,50 @@
1
+
2
+# shaft-coupler-dat
3
+
4
+
5
+
6
+
7
+## L type coupler
8
+
9
+![](2025-12-10-02-15-17.png)
10
+
11
+![](2025-12-10-02-15-32.png)
12
+
13
+
14
+## Shaft Coupler
15
+
16
+A **shaft coupler** is a mechanical component used to **connect two rotating shafts**. It primarily functions to transmit torque while allowing for slight axial, radial, or angular misalignments.
17
+
18
+---
19
+
20
+### Types of Shaft Couplers
21
+
22
+#### 1. Rigid Coupler
23
+- **Features**: No elasticity, provides a solid connection, requires precise shaft alignment.
24
+- **Applications**: High-precision CNC machines, industrial machinery.
25
+
26
+#### 2. Flexible Coupler
27
+- **Features**: Can absorb slight misalignment, reduce vibration, and minimize impact.
28
+- **Common Types**:
29
+ - **Jaw Coupling** – Uses an elastomer insert to absorb vibrations; suitable for stepper and servo motors.
30
+ - **Bellows Coupling** – High torque transmission capability, ideal for precision applications.
31
+ - **Disc Coupling** – Used in high-speed and high-precision applications, such as robotics and aerospace.
32
+
33
+#### 3. Universal Joint (U-Joint)
34
+- **Features**: Allows for larger angular misalignment, commonly used for shafts that are not in perfect alignment.
35
+- **Applications**: Automotive drivetrains, heavy machinery.
36
+
37
+#### 4. Oldham Coupling
38
+- **Features**: Compensates for significant radial misalignment, commonly used in automation and 3D printing.
39
+
40
+---
41
+
42
+### Key Functions of Shaft Couplers
43
+✅ **Torque Transmission** – Connects the motor to the driven shaft for power transfer.
44
+✅ **Misalignment Compensation** – Allows slight shaft misalignment, reducing stress.
45
+✅ **Vibration & Shock Absorption** – Helps dampen vibrations and protect mechanical components.
46
+✅ **Equipment Protection** – Some couplers act as safety devices in case of overload.
47
+
48
+## ref
49
+
50
+- [[shaft-dat]] - [[shaft-coupler]] - [[shaft]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-coupler-dat/2025-12-10-02-15-17.png
... ...
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mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-coupler-dat/shaft-coupler-dat.md
... ...
@@ -1,50 +0,0 @@
1
-
2
-# shaft-coupler-dat
3
-
4
-
5
-
6
-
7
-## L type coupler
8
-
9
-![](2025-12-10-02-15-17.png)
10
-
11
-![](2025-12-10-02-15-32.png)
12
-
13
-
14
-## Shaft Coupler
15
-
16
-A **shaft coupler** is a mechanical component used to **connect two rotating shafts**. It primarily functions to transmit torque while allowing for slight axial, radial, or angular misalignments.
17
-
18
----
19
-
20
-### Types of Shaft Couplers
21
-
22
-#### 1. Rigid Coupler
23
-- **Features**: No elasticity, provides a solid connection, requires precise shaft alignment.
24
-- **Applications**: High-precision CNC machines, industrial machinery.
25
-
26
-#### 2. Flexible Coupler
27
-- **Features**: Can absorb slight misalignment, reduce vibration, and minimize impact.
28
-- **Common Types**:
29
- - **Jaw Coupling** – Uses an elastomer insert to absorb vibrations; suitable for stepper and servo motors.
30
- - **Bellows Coupling** – High torque transmission capability, ideal for precision applications.
31
- - **Disc Coupling** – Used in high-speed and high-precision applications, such as robotics and aerospace.
32
-
33
-#### 3. Universal Joint (U-Joint)
34
-- **Features**: Allows for larger angular misalignment, commonly used for shafts that are not in perfect alignment.
35
-- **Applications**: Automotive drivetrains, heavy machinery.
36
-
37
-#### 4. Oldham Coupling
38
-- **Features**: Compensates for significant radial misalignment, commonly used in automation and 3D printing.
39
-
40
----
41
-
42
-### Key Functions of Shaft Couplers
43
-✅ **Torque Transmission** – Connects the motor to the driven shaft for power transfer.
44
-✅ **Misalignment Compensation** – Allows slight shaft misalignment, reducing stress.
45
-✅ **Vibration & Shock Absorption** – Helps dampen vibrations and protect mechanical components.
46
-✅ **Equipment Protection** – Some couplers act as safety devices in case of overload.
47
-
48
-## ref
49
-
50
-- [[shaft-dat]] - [[shaft-coupler]] - [[shaft]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/Shaft-dat/shaft-limit-ring-dat/shaft-limit-ring-dat.md
... ...
@@ -11,3 +11,4 @@ ID == 6 / OD == 12 / Thickness == 6
11 11
![](2025-12-04-00-53-15.png)
12 12
13 13
14
+- [[screws-dat]]
... ...
\ No newline at end of file
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... ...
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mechanics-dat/mechanical-structure-dat/Shaft-dat/tube-dat/tube-oval-dat/tube-oval-dat.md
... ...
@@ -0,0 +1,12 @@
1
+
2
+# tube-oval-dat
3
+
4
+- oval tube
5
+
6
+![](2025-12-29-14-50-01.png)
7
+
8
+![](2025-12-29-14-50-15.png)
9
+
10
+## ref
11
+
12
+- [[tube-oval]] - [[rod]]
... ...
\ No newline at end of file
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/Profile-Angle-dat/Profile-Angle-dat.md
... ...
@@ -41,7 +41,7 @@ width == 20
41 41
| ------------------ | ----- |
42 42
| angle | 1515 |
43 43
| t-nut | 15M4 |
44
-| hex [[screws-dat]] | |
44
+| hex [[screw-dat]] | |
45 45
| washers | |
46 46
47 47
mechanics-dat/mechanical-structure-dat/profile-dat/alu-extrusion-dat/alu-extrusion-dat.md
... ...
@@ -2,7 +2,7 @@
2 2
# Alu-Extrusion-dat
3 3
4 4
5
-- [[Alu-Extrusion]] - [[screws-dat]] - [[t-nut-dat]]
5
+- [[Alu-Extrusion]] - [[screw-dat]] - [[t-nut-dat]]
6 6
7 7
- [[case-aluminium-extrusion-dat]]
8 8
mechanics-dat/mechanical-structure-dat/thread-dat/thread-dat.md
... ...
@@ -0,0 +1,33 @@
1
+
2
+# thread-dat
3
+
4
+## Metric & Imperial Systems
5
+
6
+| Standard | Name | Angle | Region |
7
+|--------|------|-------|--------|
8
+| ISO Metric | Metric Thread (M) | 60° | Worldwide |
9
+| Unified | UNC / UNF / UNEF | 60° | USA |
10
+| Whitworth | BSW / BSP | 55° | UK |
11
+| Pipe Thread | NPT / BSPP / BSPT | 60° / 55° | Piping |
12
+
13
+---
14
+
15
+## 3️⃣ Metric Thread Details (ISO)
16
+
17
+| Property | Description |
18
+|--------|-------------|
19
+| Designation | M6 × 1.0 |
20
+| Major Diameter | Nominal outer diameter |
21
+| Pitch | Distance between threads |
22
+| Thread Angle | 60° |
23
+| Direction | Right-hand / Left-hand |
24
+
25
+### Common Metric Threads
26
+
27
+| Size | Pitch (mm) |
28
+|----|-----------|
29
+| M3 | 0.5 |
30
+| M4 | 0.7 |
31
+| M5 | 0.8 |
32
+| M6 | 1.0 |
33
+| M8 | 1.25 |
mechanics-dat/mechanical-tools-dat/mechanical-tools-dat.md
... ...
@@ -20,7 +20,7 @@
20 20
21 21
- [[Wrench-dat]]
22 22
23
-- [[screws-dat]] - [[hex-socket-screw-dat]]
23
+- [[screw-dat]] - [[hex-socket-screw-dat]]
24 24
25 25
- [[hex-socket-screwdriver-dat]]
26 26
mechanics-dat/mechanics-dat.md
... ...
@@ -71,7 +71,7 @@ mechanics-dat
71 71
72 72
[[Pneumatic-cylinder-dat]]
73 73
74
-[[Lead-screw-dat]] - [[screws-dat]]
74
+[[Lead-screw-dat]] - [[screw-dat]]
75 75
76 76
- [[flange-dat]]
77 77
mechanics-dat/mounting-dat/mounting-dat.md
... ...
@@ -12,7 +12,7 @@
12 12
13 13
Coarse Planar
14 14
15
-- [[screws-dat]]
15
+- [[screw-dat]]
16 16
17 17
- Clamp Mount / Jaw Mount
18 18
mechanics-dat/screw-dat/2025-03-07-17-10-00.png
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mechanics-dat/screw-dat/screw-dat.md
... ...
@@ -0,0 +1,214 @@
1
+
2
+# screws-dat
3
+
4
+- [[screws]]
5
+
6
+
7
+- [[screw-large-head-dat]]
8
+
9
+- M3x10
10
+- M5x10
11
+
12
+- M16
13
+- M25 == ￠25*M20*200(1颗)
14
+- M100螺栓 150mm-800mm == 240
15
+- M120螺栓 200mm-800mm
16
+
17
+- [[hex-key-dat]]
18
+
19
+## common combination
20
+
21
+- [[screws-dat]] + [[nut-dat]] + [[washer-spring-dat]] + [[washer-flat-dat]]
22
+
23
+![](2025-09-25-18-25-15.png)
24
+
25
+
26
+## bolt and screw
27
+
28
+| Feature | Bolt | Screw |
29
+| --------------------- | -------------------------------------------------- | ------------------------------------------------------------------- |
30
+| **Usage** | Used with a **nut** or threaded hole | Often used **without a nut**, threads into material directly |
31
+| **Holding Mechanism** | Relies on **external nut** for clamping force | Creates clamping force by threading directly into the material |
32
+| **Tools Used** | Typically needs a **wrench** or **socket** | Often driven by **screwdriver** or **Allen key** |
33
+| **Installation** | Requires access to **both sides** (to tighten nut) | Can often be installed from **one side** only |
34
+| **Thread Type** | Usually has a **blunt end** and uniform threads | Often has **pointed or tapered end**, cutting threads into material |
35
+| **Common Example** | Hex bolt with nut on the other end | Wood screw going into wood directly |
36
+
37
+
38
+
39
+## fit size
40
+
41
+### Common Screw Size Reference
42
+
43
+| Item | M3 | M4 |
44
+| ------------------------------------ | ---------- | ------- |
45
+| **Screw Shaft Diameter** | 3.0 mm | 4.0 mm |
46
+| **Button/Socket Head Diameter** | 5.5–6.0 mm | 7.0 mm |
47
+| **Countersunk Head Diameter** | ~5.6 mm | ~7.5 mm |
48
+| **Washer Outer Diameter (standard)** | 6.0 mm | 8.0 mm |
49
+
50
+## common used bolt
51
+
52
+- hex head bolt
53
+- hex socket head bolt
54
+- Phillips Head Screw
55
+
56
+
57
+## Screw == Self-tapping Screws
58
+
59
+Self-tapping screws are designed to create their own hole as they are driven into the material. They are commonly used in metal, plastic, and wood applications. The most common types of self-tapping screws include:
60
+
61
+## Other Head Types
62
+
63
+### Round head
64
+
65
+6. Round Head
66
+Name: Round Head Screw
67
+Description: Fully rounded top, offering a decorative or smooth finish.
68
+Usage: Less common in screws but used in vintage or decorative applications.
69
+
70
+
71
+### Pan head
72
+
73
+Pan Head Screws M3*6, note length is the screws part
74
+
75
+![](2025-03-07-17-10-00.png)
76
+
77
+4. Pan Head
78
+Name: Pan Head Screw
79
+Description: Rounded, slightly raised head with a large diameter.
80
+Usage: Common in electronics, sheet metal fastening, and general applications.
81
+
82
+
83
+
84
+### Countersunk Head
85
+
86
+Countersunk Head M3*6, note length is the total length
87
+
88
+![](2025-03-07-17-11-52.png)
89
+
90
+
91
+### Hex Head
92
+
93
+
94
+
95
+### Hex socket
96
+
97
+![](2025-03-13-18-03-58.png)
98
+
99
+
100
+
101
+### Button Head
102
+
103
+M5*10 pan head
104
+
105
+![](2025-03-11-16-36-15.png)
106
+
107
+2. Button Head (Socket Button Head Screw)
108
+Name: Button Head Screw
109
+Description: Low-profile, rounded head with a wide bearing surface.
110
+Usage: Used when a smooth, low-profile finish is needed, such as in enclosures or furniture.
111
+
112
+
113
+### Cap Head
114
+
115
+1. Cap Head (Socket Cap Screw)
116
+Name: Cap Head Screw
117
+Description: Tall, cylindrical head with a deep hex socket.
118
+Usage: High-strength fastening in machinery, automotive, and structural applications.
119
+
120
+### Flat Head
121
+
122
+3. Flat Head (Countersunk Head Screw)
123
+Name: Flat Head Screw
124
+Description: Tapered, countersunk head that sits flush with the surface.
125
+Usage: Used in applications requiring a smooth, flush surface, such as aerospace or furniture.
126
+
127
+### Low Head
128
+
129
+5. Low Head
130
+Name: Low Head Screw
131
+Description: Similar to cap head but with a reduced height for tight spaces.
132
+Usage: Used in applications where clearance is limited but a strong connection is needed.
133
+
134
+### Truss Head
135
+
136
+7. Truss Head
137
+Name: Truss Head Screw
138
+Description: Extra-wide, low-profile head for better load distribution.
139
+Usage: Used in thin materials like sheet metal or plastic to reduce material damage.
140
+
141
+### Oval Head
142
+
143
+8. Oval Head (Raised Countersunk Head Screw)
144
+Name: Oval Head Screw
145
+Description: Similar to a flat head but with a slightly domed top.
146
+Usage: Decorative applications or when a smooth, elegant look is needed.
147
+
148
+## Drive Types
149
+
150
+
151
+Screws can be categorized based on their **drive type**, which refers to the shape of the socket or recess in the screw head where the tool engages.
152
+
153
+### 1. Hex Drive (Allen)
154
+- **Common Names:** Hex Socket, Allen
155
+- **Description:** A hexagonal socket that requires a hex key (Allen wrench).
156
+- **Usage:** Used in machinery, furniture, and automotive applications for high torque fastening.
157
+
158
+### 2. Phillips Drive (Cross)
159
+- **Common Names:** Phillips, Cross Recess
160
+- **Description:** A cross-shaped recess designed to prevent over-tightening.
161
+- **Usage:** Widely used in general-purpose applications, especially in wood and drywall screws.
162
+
163
+### 3. Slotted Drive
164
+- **Common Names:** Slot, Flathead
165
+- **Description:** A single straight groove that uses a flat-blade screwdriver.
166
+- **Usage:** Common in older designs, electrical outlets, and light-duty applications.
167
+
168
+### 4. Torx Drive
169
+- **Common Names:** Torx, Star
170
+- **Description:** A six-pointed star-shaped recess that provides high torque transfer and reduces cam-out.
171
+- **Usage:** Used in electronics, automotive, and aerospace applications.
172
+
173
+### 5. Pozidriv Drive
174
+- **Common Names:** Pozidriv, PZ
175
+- **Description:** Similar to Phillips but with extra grooves for better torque and less slippage.
176
+- **Usage:** Common in European woodworking and electrical applications.
177
+
178
+### 6. Square Drive (Robertson)
179
+- **Common Names:** Robertson
180
+- **Description:** A square-shaped recess that offers strong torque resistance and prevents cam-out.
181
+- **Usage:** Used in construction, woodworking, and some automotive applications.
182
+
183
+### 7. Tri-Wing Drive
184
+- **Common Names:** Tri-Wing
185
+- **Description:** Three-winged recess designed for security screws.
186
+- **Usage:** Found in aerospace, electronics, and tamper-proof applications (e.g., Nintendo consoles).
187
+
188
+### 8. Spanner Drive (Snake Eye)
189
+- **Common Names:** Spanner, Snake Eye, Twin-Hole
190
+- **Description:** Two small round holes on the head requiring a special spanner bit.
191
+- **Usage:** Used in security screws to prevent tampering in public spaces.
192
+
193
+### 9. One-Way Drive
194
+- **Common Names:** One-Way, Security Slot
195
+- **Description:** Slotted design that allows installation but prevents removal.
196
+- **Usage:** Used in security applications like restroom fixtures and license plates.
197
+
198
+### 10. Hexalobular Drive (Torx Plus)
199
+- **Common Names:** Torx Plus, 6-Lobe
200
+- **Description:** A refined version of Torx with a more precise shape for higher torque.
201
+- **Usage:** Found in automotive, aerospace, and industrial applications.
202
+
203
+### 11. Clutch Drive
204
+- **Common Names:** Clutch Head
205
+- **Description:** Bowtie-shaped recess used in heavy machinery.
206
+- **Usage:** Found in buses, trailers, and some older appliances.
207
+
208
+
209
+
210
+## ref
211
+
212
+- [[nut-dat]]
213
+
214
+- [[screws]]
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+# screw-large-head-dat.md
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+
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+![](2025-12-30-14-50-19.png)
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+# screw-pan-head-dat
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+
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+![](2025-12-17-21-41-37.png)
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-
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-# screw-pan-head-dat
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-
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1
-
2
-# screws-dat
3
-
4
-- [[screws]]
5
-
6
-- M3x10
7
-- M5x10
8
-
9
-- M16
10
-- M25 == ￠25*M20*200(1颗)
11
-- M100螺栓 150mm-800mm == 240
12
-- M120螺栓 200mm-800mm
13
-
14
-- [[hex-key-dat]]
15
-
16
-## common combination
17
-
18
-- [[screws-dat]] + [[nut-dat]] + [[washer-spring-dat]] + [[washer-flat-dat]]
19
-
20
-![](2025-09-25-18-25-15.png)
21
-
22
-
23
-## bolt and screw
24
-
25
-| Feature | Bolt | Screw |
26
-| --------------------- | -------------------------------------------------- | ------------------------------------------------------------------- |
27
-| **Usage** | Used with a **nut** or threaded hole | Often used **without a nut**, threads into material directly |
28
-| **Holding Mechanism** | Relies on **external nut** for clamping force | Creates clamping force by threading directly into the material |
29
-| **Tools Used** | Typically needs a **wrench** or **socket** | Often driven by **screwdriver** or **Allen key** |
30
-| **Installation** | Requires access to **both sides** (to tighten nut) | Can often be installed from **one side** only |
31
-| **Thread Type** | Usually has a **blunt end** and uniform threads | Often has **pointed or tapered end**, cutting threads into material |
32
-| **Common Example** | Hex bolt with nut on the other end | Wood screw going into wood directly |
33
-
34
-
35
-
36
-## fit size
37
-
38
-### Common Screw Size Reference
39
-
40
-| Item | M3 | M4 |
41
-| ------------------------------------ | ---------- | ------- |
42
-| **Screw Shaft Diameter** | 3.0 mm | 4.0 mm |
43
-| **Button/Socket Head Diameter** | 5.5–6.0 mm | 7.0 mm |
44
-| **Countersunk Head Diameter** | ~5.6 mm | ~7.5 mm |
45
-| **Washer Outer Diameter (standard)** | 6.0 mm | 8.0 mm |
46
-
47
-## common used bolt
48
-
49
-- hex head bolt
50
-- hex socket head bolt
51
-- Phillips Head Screw
52
-
53
-
54
-## Screw == Self-tapping Screws
55
-
56
-Self-tapping screws are designed to create their own hole as they are driven into the material. They are commonly used in metal, plastic, and wood applications. The most common types of self-tapping screws include:
57
-
58
-## Other Head Types
59
-
60
-### Round head
61
-
62
-6. Round Head
63
-Name: Round Head Screw
64
-Description: Fully rounded top, offering a decorative or smooth finish.
65
-Usage: Less common in screws but used in vintage or decorative applications.
66
-
67
-
68
-### Pan head
69
-
70
-Pan Head Screws M3*6, note length is the screws part
71
-
72
-![](2025-03-07-17-10-00.png)
73
-
74
-4. Pan Head
75
-Name: Pan Head Screw
76
-Description: Rounded, slightly raised head with a large diameter.
77
-Usage: Common in electronics, sheet metal fastening, and general applications.
78
-
79
-
80
-
81
-### Countersunk Head
82
-
83
-Countersunk Head M3*6, note length is the total length
84
-
85
-![](2025-03-07-17-11-52.png)
86
-
87
-
88
-### Hex Head
89
-
90
-
91
-
92
-### Hex socket
93
-
94
-![](2025-03-13-18-03-58.png)
95
-
96
-
97
-
98
-### Button Head
99
-
100
-M5*10 pan head
101
-
102
-![](2025-03-11-16-36-15.png)
103
-
104
-2. Button Head (Socket Button Head Screw)
105
-Name: Button Head Screw
106
-Description: Low-profile, rounded head with a wide bearing surface.
107
-Usage: Used when a smooth, low-profile finish is needed, such as in enclosures or furniture.
108
-
109
-
110
-### Cap Head
111
-
112
-1. Cap Head (Socket Cap Screw)
113
-Name: Cap Head Screw
114
-Description: Tall, cylindrical head with a deep hex socket.
115
-Usage: High-strength fastening in machinery, automotive, and structural applications.
116
-
117
-### Flat Head
118
-
119
-3. Flat Head (Countersunk Head Screw)
120
-Name: Flat Head Screw
121
-Description: Tapered, countersunk head that sits flush with the surface.
122
-Usage: Used in applications requiring a smooth, flush surface, such as aerospace or furniture.
123
-
124
-### Low Head
125
-
126
-5. Low Head
127
-Name: Low Head Screw
128
-Description: Similar to cap head but with a reduced height for tight spaces.
129
-Usage: Used in applications where clearance is limited but a strong connection is needed.
130
-
131
-### Truss Head
132
-
133
-7. Truss Head
134
-Name: Truss Head Screw
135
-Description: Extra-wide, low-profile head for better load distribution.
136
-Usage: Used in thin materials like sheet metal or plastic to reduce material damage.
137
-
138
-### Oval Head
139
-
140
-8. Oval Head (Raised Countersunk Head Screw)
141
-Name: Oval Head Screw
142
-Description: Similar to a flat head but with a slightly domed top.
143
-Usage: Decorative applications or when a smooth, elegant look is needed.
144
-
145
-## Drive Types
146
-
147
-
148
-Screws can be categorized based on their **drive type**, which refers to the shape of the socket or recess in the screw head where the tool engages.
149
-
150
-### 1. Hex Drive (Allen)
151
-- **Common Names:** Hex Socket, Allen
152
-- **Description:** A hexagonal socket that requires a hex key (Allen wrench).
153
-- **Usage:** Used in machinery, furniture, and automotive applications for high torque fastening.
154
-
155
-### 2. Phillips Drive (Cross)
156
-- **Common Names:** Phillips, Cross Recess
157
-- **Description:** A cross-shaped recess designed to prevent over-tightening.
158
-- **Usage:** Widely used in general-purpose applications, especially in wood and drywall screws.
159
-
160
-### 3. Slotted Drive
161
-- **Common Names:** Slot, Flathead
162
-- **Description:** A single straight groove that uses a flat-blade screwdriver.
163
-- **Usage:** Common in older designs, electrical outlets, and light-duty applications.
164
-
165
-### 4. Torx Drive
166
-- **Common Names:** Torx, Star
167
-- **Description:** A six-pointed star-shaped recess that provides high torque transfer and reduces cam-out.
168
-- **Usage:** Used in electronics, automotive, and aerospace applications.
169
-
170
-### 5. Pozidriv Drive
171
-- **Common Names:** Pozidriv, PZ
172
-- **Description:** Similar to Phillips but with extra grooves for better torque and less slippage.
173
-- **Usage:** Common in European woodworking and electrical applications.
174
-
175
-### 6. Square Drive (Robertson)
176
-- **Common Names:** Robertson
177
-- **Description:** A square-shaped recess that offers strong torque resistance and prevents cam-out.
178
-- **Usage:** Used in construction, woodworking, and some automotive applications.
179
-
180
-### 7. Tri-Wing Drive
181
-- **Common Names:** Tri-Wing
182
-- **Description:** Three-winged recess designed for security screws.
183
-- **Usage:** Found in aerospace, electronics, and tamper-proof applications (e.g., Nintendo consoles).
184
-
185
-### 8. Spanner Drive (Snake Eye)
186
-- **Common Names:** Spanner, Snake Eye, Twin-Hole
187
-- **Description:** Two small round holes on the head requiring a special spanner bit.
188
-- **Usage:** Used in security screws to prevent tampering in public spaces.
189
-
190
-### 9. One-Way Drive
191
-- **Common Names:** One-Way, Security Slot
192
-- **Description:** Slotted design that allows installation but prevents removal.
193
-- **Usage:** Used in security applications like restroom fixtures and license plates.
194
-
195
-### 10. Hexalobular Drive (Torx Plus)
196
-- **Common Names:** Torx Plus, 6-Lobe
197
-- **Description:** A refined version of Torx with a more precise shape for higher torque.
198
-- **Usage:** Found in automotive, aerospace, and industrial applications.
199
-
200
-### 11. Clutch Drive
201
-- **Common Names:** Clutch Head
202
-- **Description:** Bowtie-shaped recess used in heavy machinery.
203
-- **Usage:** Found in buses, trailers, and some older appliances.
204
-
205
-
206
-
207
-## ref
208
-
209
-- [[nut-dat]]
210
-
211
-- [[screws]]
... ...
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