fab-dat/fab-workspace-dat/fab-workspace-dat.md
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@@ -32,7 +32,14 @@
32 32
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+## disassembly
36
+
37
+- [[fab-tools-dat]]
38
+
39
+- [[adhesive-dat]] - [[adhesive-remover-dat]] == [[glue-dat]]
40
+
41
+- [[adhesive-remover]]
35 42
36 43
## ref
37 44
38
-- [[fab-workspace]]
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\ No newline at end of file
0
+- [[fab-workspace]] - [[fab-PCB-soldering-tools]]
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\ No newline at end of file
mechanics-dat/glue-dat/adhesive-remover-dat/adhesive-remover-dat.md
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@@ -0,0 +1,8 @@
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+
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+
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+
4
+# adhesive-remover-dat
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+
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+- [[fab-tools-dat]] - [[adhesive-remover-dat]]
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+
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+- [[adhesive-remover]]
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\ No newline at end of file
mechanics-dat/glue-dat/glue-dat.md
... ...
@@ -1,156 +1,158 @@
1
-
2
-# glue-dat
3
-
4
-
5
-
6
-- [[glue-hot-dat]] - [[502-glue-dat]] - [[epoxy-glue-dat]] (AB Glue) - [[uv-glue-dat]]
7
-
8
-- [[glue-ABS-dat]]
9
-
10
-- [[glue-PVC-dat]]
11
-
12
-- [[glue-dat]] - [[glue-hot-dat]]
13
-
14
-# 🔍 Comparison of Adhesives
15
-
16
-| Feature / Property | 502 Glue (Cyanoacrylate) | Epoxy Resin (AB Glue) | Hot Glue (Thermoplastic) | UV Glue (Light-Cured Adhesive) |
17
-|---------------------------|-------------------------------|-----------------------------------|----------------------------------|-------------------------------------|
18
-| **Main Component** | Cyanoacrylate | Epoxy resin + Hardener | Thermoplastic (EVA) | Acrylated resin + photoinitiators |
19
-| **Curing Trigger** | Moisture (in air/surface) | Chemical (resin + hardener mix) | Heat (glue gun) | UV light |
20
-| **Cure Time** | Seconds | Minutes to hours | Seconds (cools fast) | Seconds (with UV light) |
21
-| **Bond Strength** | High | Very High | Medium | High |
22
-| **Material Compatibility**| Metal, plastic, rubber, etc. | Most surfaces | Most porous and some plastics | Glass, plastic, metal |
23
-| **Heat Resistance** | Low to Moderate | High | Low | Moderate to High |
24
-| **Moisture Resistance** | Moderate | High | Low | High |
25
-| **Application Control** | Moderate (can drip) | Requires mixing, precise | Easy, but can be stringy | Precise (controlled by light) |
26
-| **Reusability** | No (one-time bond) | No (once mixed, must be used) | Yes (reheat and reuse) | No |
27
-| **Common Uses** | Quick household repairs, models| Heavy-duty bonding, structural | Crafts, packaging, quick fixes | Phone screens, jewelry, precision |
28
-| **Cleanup** | Acetone | Alcohol/solvents before cure | Peel off | Alcohol or acetone |
29
-
30
-
31
-
32
-
33
-## How 502 Glue Works (Cyanoacrylate Adhesive)
34
-
35
-502 glue, also known as **super glue**, is primarily made from **cyanoacrylate**. It works based on a **rapid polymerization reaction** triggered by moisture.
36
-
37
----
38
-
39
-### 🧪 Basic Principle
40
-
41
-**1. Composition – Cyanoacrylate:**
42
-502 glue contains cyanoacrylate monomers that remain stable in dry environments. However, when exposed to even tiny amounts of **moisture (like humidity in the air)**, a chemical reaction starts.
43
-
44
-**2. Polymerization Triggered by Moisture:**
45
-When applied to surfaces, the trace moisture on them acts as a **catalyst**, initiating a **rapid chain reaction** that converts the liquid monomers into solid polymers (plastic-like substance).
46
-
47
-👉 This hardening happens within **seconds**.
48
-
49
-**3. Exothermic Reaction:**
50
-The polymerization process **releases heat**. This is why 502 glue can feel hot when accidentally bonded to skin, sometimes causing minor burns.
51
-
52
----
53
-
54
-### 🔧 Adhesive Characteristics
55
-
56
-- Bonds quickly and strongly to various materials like:
57
- - Metal
58
- - Plastic
59
- - Rubber
60
- - Ceramics
61
- - Leather
62
-- Dries in seconds
63
-- High bonding strength
64
-- **Not ideal** for long-term high heat or moisture exposure (may become brittle)
65
-
66
----
67
-
68
-### 🧼 How to Remove It
69
-
70
-If you accidentally glue your skin or surfaces, try:
71
-
72
-- **Nail polish remover (contains acetone)**
73
-- **Soaking in warm soapy water**
74
-- **Gentle peeling or waiting for it to wear off naturally**
75
-
76
----
77
-
78
-### 📌 Summary
79
-
80
-502 glue works by **polymerizing instantly** when in contact with moisture, forming a hard plastic-like bond. It’s fast, strong, and versatile—but must be handled carefully due to its speed and bonding strength.
81
-
82
-
83
-
84
-
85
-## ❌ Why 502 Glue Fails to Bond Some 3D Printing Materials
86
-
87
-### 1. **Low Surface Energy (LSE) Plastics**
88
-Many 3D printing filaments, like **PP (Polypropylene)**, **PE (Polyethylene)**, and **PTFE (Teflon)**, have **very low surface energy**, meaning adhesives can't "wet" or stick to them properly.
89
-
90
-- ➤ Glue beads up instead of spreading
91
-- ➤ No strong chemical bond forms
92
-
93
-### 2. **Porous or Layered Surface (FDM Printing)**
94
-FDM 3D prints have tiny gaps and a layered structure:
95
-
96
-- ➤ 502 glue may seep in but not form strong bonds between layers
97
-- ➤ Layer lines reduce the available smooth surface area for bonding
98
-
99
-### 3. **Moisture Content**
100
-502 glue requires **a small amount of moisture** to activate. But:
101
-
102
-- ➤ Some 3D printed parts may be too dry (especially freshly printed ones)
103
-- ➤ Or too porous, absorbing glue unevenly
104
-
105
-### 4. **Incompatible Materials**
106
-Some common filaments are just not suitable for cyanoacrylate:
107
-
108
-| Material | 502 Glue Compatibility |
109
-|----------------|------------------------|
110
-| PLA | ✅ Generally bonds well |
111
-| ABS | ⚠️ Moderate (may need sanding) |
112
-| PETG | ⚠️ Difficult, slippery surface |
113
-| TPU / TPE | ❌ Very poor bonding (flexible) |
114
-| Nylon | ❌ Very difficult to bond |
115
-| PP / PE | ❌ Extremely poor adhesion |
116
-
117
-### 5. **Oily or Contaminated Surface**
118
-Some filaments (like PETG or nylon) may feel **greasy** or attract **oil/dust**, which prevents proper glue bonding.
119
-
120
----
121
-
122
-## ✅ Tips to Improve Bonding
123
-
124
-- **Roughen the surface** with sandpaper
125
-- **Clean with alcohol** before applying glue
126
-- Use **plastic primers** or **specialized adhesives** (like epoxy or polyurethane)
127
-- For tricky materials like nylon or TPU, use **heat welding**, **mechanical fasteners**, or **special plastic adhesives**
128
-
129
-
130
-## For high-strength bonding of mechanical transmission components (e.g., gears, bearings, linkages, metal or hard plastic parts), the recommended adhesives are:
131
-
132
-| Adhesive Type | Suitable Materials | Features & Recommendations |
133
-|----------------------------|-----------------------------------|----------------------------------------------------------------------------|
134
-| AB Glue (Epoxy Resin, 2-part) | Metal, ceramics, hard plastics, composites | Extremely strong, gap-filling, rigid after curing, heat and chemical resistant, good for shear and pressure loads |
135
-| MMA Adhesive (Methyl Methacrylate) | Metal, composites, hard plastics | Industrial-grade, strong and slightly flexible, vibration-resistant, suitable for high-speed or vibrating environments |
136
-| Structural Acrylic Adhesive | Metal-to-metal, composites | High shear strength, commonly used in automotive or mechanical structural parts |
137
-| PU Adhesive (Polyurethane Structural Glue) | Metal, hard plastic, composites | Flexible, absorbs vibration, good for impact or minor vibration, slightly lower strength than AB glue |
138
-
139
-⚙️ **Selection Recommendations**:
140
-1. **High load, requires rigidity** → **AB Glue (Epoxy Resin)**
141
-2. **High load with vibration or impact** → **MMA Glue / Structural Acrylic**
142
-3. **Moderate load, requires flexibility, minor vibration absorption** → **PU Structural Glue**
143
-
144
-💡 **Tips**:
145
-- Ensure bonding surfaces are **clean, dry, and oil-free**
146
-- Lightly sanding metal or hard plastic surfaces can improve friction and adhesion
147
-- For high-speed rotating or precision transmission components, even after curing, **stress distribution** should be considered; using **mechanical alignment pins/bolts** can reinforce the joint
148
-
149
-
150
-
151
-
152
-## ref
153
-
154
-- [[mechanics-dat]]
155
-
1
+
2
+# glue-dat
3
+
4
+
5
+
6
+- [[glue-hot-dat]] - [[502-glue-dat]] - [[epoxy-glue-dat]] (AB Glue) - [[uv-glue-dat]]
7
+
8
+- [[glue-ABS-dat]]
9
+
10
+- [[glue-PVC-dat]]
11
+
12
+- [[glue-dat]] - [[glue-hot-dat]]
13
+
14
+- [[adhesive-remover-dat]]
15
+
16
+# 🔍 Comparison of Adhesives
17
+
18
+| Feature / Property | 502 Glue (Cyanoacrylate) | Epoxy Resin (AB Glue) | Hot Glue (Thermoplastic) | UV Glue (Light-Cured Adhesive) |
19
+|---------------------------|-------------------------------|-----------------------------------|----------------------------------|-------------------------------------|
20
+| **Main Component** | Cyanoacrylate | Epoxy resin + Hardener | Thermoplastic (EVA) | Acrylated resin + photoinitiators |
21
+| **Curing Trigger** | Moisture (in air/surface) | Chemical (resin + hardener mix) | Heat (glue gun) | UV light |
22
+| **Cure Time** | Seconds | Minutes to hours | Seconds (cools fast) | Seconds (with UV light) |
23
+| **Bond Strength** | High | Very High | Medium | High |
24
+| **Material Compatibility**| Metal, plastic, rubber, etc. | Most surfaces | Most porous and some plastics | Glass, plastic, metal |
25
+| **Heat Resistance** | Low to Moderate | High | Low | Moderate to High |
26
+| **Moisture Resistance** | Moderate | High | Low | High |
27
+| **Application Control** | Moderate (can drip) | Requires mixing, precise | Easy, but can be stringy | Precise (controlled by light) |
28
+| **Reusability** | No (one-time bond) | No (once mixed, must be used) | Yes (reheat and reuse) | No |
29
+| **Common Uses** | Quick household repairs, models| Heavy-duty bonding, structural | Crafts, packaging, quick fixes | Phone screens, jewelry, precision |
30
+| **Cleanup** | Acetone | Alcohol/solvents before cure | Peel off | Alcohol or acetone |
31
+
32
+
33
+
34
+
35
+## How 502 Glue Works (Cyanoacrylate Adhesive)
36
+
37
+502 glue, also known as **super glue**, is primarily made from **cyanoacrylate**. It works based on a **rapid polymerization reaction** triggered by moisture.
38
+
39
+---
40
+
41
+### 🧪 Basic Principle
42
+
43
+**1. Composition – Cyanoacrylate:**
44
+502 glue contains cyanoacrylate monomers that remain stable in dry environments. However, when exposed to even tiny amounts of **moisture (like humidity in the air)**, a chemical reaction starts.
45
+
46
+**2. Polymerization Triggered by Moisture:**
47
+When applied to surfaces, the trace moisture on them acts as a **catalyst**, initiating a **rapid chain reaction** that converts the liquid monomers into solid polymers (plastic-like substance).
48
+
49
+👉 This hardening happens within **seconds**.
50
+
51
+**3. Exothermic Reaction:**
52
+The polymerization process **releases heat**. This is why 502 glue can feel hot when accidentally bonded to skin, sometimes causing minor burns.
53
+
54
+---
55
+
56
+### 🔧 Adhesive Characteristics
57
+
58
+- Bonds quickly and strongly to various materials like:
59
+ - Metal
60
+ - Plastic
61
+ - Rubber
62
+ - Ceramics
63
+ - Leather
64
+- Dries in seconds
65
+- High bonding strength
66
+- **Not ideal** for long-term high heat or moisture exposure (may become brittle)
67
+
68
+---
69
+
70
+### 🧼 How to Remove It
71
+
72
+If you accidentally glue your skin or surfaces, try:
73
+
74
+- **Nail polish remover (contains acetone)**
75
+- **Soaking in warm soapy water**
76
+- **Gentle peeling or waiting for it to wear off naturally**
77
+
78
+---
79
+
80
+### 📌 Summary
81
+
82
+502 glue works by **polymerizing instantly** when in contact with moisture, forming a hard plastic-like bond. It’s fast, strong, and versatile—but must be handled carefully due to its speed and bonding strength.
83
+
84
+
85
+
86
+
87
+## ❌ Why 502 Glue Fails to Bond Some 3D Printing Materials
88
+
89
+### 1. **Low Surface Energy (LSE) Plastics**
90
+Many 3D printing filaments, like **PP (Polypropylene)**, **PE (Polyethylene)**, and **PTFE (Teflon)**, have **very low surface energy**, meaning adhesives can't "wet" or stick to them properly.
91
+
92
+- ➤ Glue beads up instead of spreading
93
+- ➤ No strong chemical bond forms
94
+
95
+### 2. **Porous or Layered Surface (FDM Printing)**
96
+FDM 3D prints have tiny gaps and a layered structure:
97
+
98
+- ➤ 502 glue may seep in but not form strong bonds between layers
99
+- ➤ Layer lines reduce the available smooth surface area for bonding
100
+
101
+### 3. **Moisture Content**
102
+502 glue requires **a small amount of moisture** to activate. But:
103
+
104
+- ➤ Some 3D printed parts may be too dry (especially freshly printed ones)
105
+- ➤ Or too porous, absorbing glue unevenly
106
+
107
+### 4. **Incompatible Materials**
108
+Some common filaments are just not suitable for cyanoacrylate:
109
+
110
+| Material | 502 Glue Compatibility |
111
+|----------------|------------------------|
112
+| PLA | ✅ Generally bonds well |
113
+| ABS | ⚠️ Moderate (may need sanding) |
114
+| PETG | ⚠️ Difficult, slippery surface |
115
+| TPU / TPE | ❌ Very poor bonding (flexible) |
116
+| Nylon | ❌ Very difficult to bond |
117
+| PP / PE | ❌ Extremely poor adhesion |
118
+
119
+### 5. **Oily or Contaminated Surface**
120
+Some filaments (like PETG or nylon) may feel **greasy** or attract **oil/dust**, which prevents proper glue bonding.
121
+
122
+---
123
+
124
+## ✅ Tips to Improve Bonding
125
+
126
+- **Roughen the surface** with sandpaper
127
+- **Clean with alcohol** before applying glue
128
+- Use **plastic primers** or **specialized adhesives** (like epoxy or polyurethane)
129
+- For tricky materials like nylon or TPU, use **heat welding**, **mechanical fasteners**, or **special plastic adhesives**
130
+
131
+
132
+## For high-strength bonding of mechanical transmission components (e.g., gears, bearings, linkages, metal or hard plastic parts), the recommended adhesives are:
133
+
134
+| Adhesive Type | Suitable Materials | Features & Recommendations |
135
+|----------------------------|-----------------------------------|----------------------------------------------------------------------------|
136
+| AB Glue (Epoxy Resin, 2-part) | Metal, ceramics, hard plastics, composites | Extremely strong, gap-filling, rigid after curing, heat and chemical resistant, good for shear and pressure loads |
137
+| MMA Adhesive (Methyl Methacrylate) | Metal, composites, hard plastics | Industrial-grade, strong and slightly flexible, vibration-resistant, suitable for high-speed or vibrating environments |
138
+| Structural Acrylic Adhesive | Metal-to-metal, composites | High shear strength, commonly used in automotive or mechanical structural parts |
139
+| PU Adhesive (Polyurethane Structural Glue) | Metal, hard plastic, composites | Flexible, absorbs vibration, good for impact or minor vibration, slightly lower strength than AB glue |
140
+
141
+⚙️ **Selection Recommendations**:
142
+1. **High load, requires rigidity** → **AB Glue (Epoxy Resin)**
143
+2. **High load with vibration or impact** → **MMA Glue / Structural Acrylic**
144
+3. **Moderate load, requires flexibility, minor vibration absorption** → **PU Structural Glue**
145
+
146
+💡 **Tips**:
147
+- Ensure bonding surfaces are **clean, dry, and oil-free**
148
+- Lightly sanding metal or hard plastic surfaces can improve friction and adhesion
149
+- For high-speed rotating or precision transmission components, even after curing, **stress distribution** should be considered; using **mechanical alignment pins/bolts** can reinforce the joint
150
+
151
+
152
+
153
+
154
+## ref
155
+
156
+- [[mechanics-dat]]
157
+
156 158
- [[glue]] - [[mechanics]]
... ...
\ No newline at end of file