Tech-dat/Sensor-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/2023-11-20-14-14-00.png
... ...
Binary files a/Tech-dat/Sensor-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/2023-11-20-14-14-00.png and /dev/null differ
Tech-dat/Sensor-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/2025-10-26-17-27-04.png
... ...
Binary files a/Tech-dat/Sensor-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/2025-10-26-17-27-04.png and /dev/null differ
Tech-dat/Sensor-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/sensor-IR-reflective-dat.md
... ...
@@ -1,37 +0,0 @@
1
-
2
-# sensor-IR-reflective-dat
3
-
4
-- [[sensor-photoelectric-dat]]
5
-
6
-## board
7
-
8
-- [[SMO1070-dat]] - [[SMO1003-dat]]
9
-
10
-
11
-## working principles
12
-
13
-该传感器模块对环境光线适应能力强，其具有一对红外线发射与接收管，发射管发射出一定频率的红外线，当检测方向遇到障碍物（反射面）时，红外线反射回来被接收管接收，经过比较器电路处理之后，绿色指示灯会亮起，同时信号输出接口输出数字信号（一个低电平信号），可通过电位器科比电子旋钮调节检测距离，有效距离范围2～30cm，工作电压为3.3V-5V。
14
-
15
-该传感器的探测距离可以通过电位器调节、具有干扰小、便于装配使用方便等特点，可以广泛应用于机器人避障、避障小车、流水线计数及黑白线循迹等众多场合。
16
-
17
-
18
-## Applications
19
-
20
-* Meter pulse data sampling
21
-* Paper shredder machine detection
22
-* Obstacle detection
23
-* Black and white line detection
24
-
25
-
26
-
27
-## IR TX RX pair module
28
-
29
-![](2023-11-20-14-14-00.png)
30
-
31
-![](2025-10-26-17-27-04.png)
32
-
33
-
34
-
35
-## ref
36
-
37
-- [[sensor-infrared-dat]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-Infrared-dat/sensor-Infrared-dat.md
... ...
@@ -1,14 +0,0 @@
1
-
2
-# Infrared-sensor-dat
3
-
4
-- [[sensor-IR-reflective-dat]]
5
-
6
-## Demo
7
-
8
-https://t.me/electrodragon3/192
9
-
10
-
11
-
12
-## ref
13
-
14
-- [[sensor-dat]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/line-finder-dat/2025-06-15-14-20-13.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/line-finder-dat/2025-06-15-14-20-13.png differ
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/line-finder-dat/2025-12-12-16-02-53.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/line-finder-dat/2025-12-12-16-02-53.png differ
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/line-finder-dat/2025-12-12-16-05-25.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/line-finder-dat/2025-12-12-16-05-25.png differ
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/line-finder-dat/line-finder-dat.md
... ...
@@ -0,0 +1,16 @@
1
+
2
+# line-finder-dat
3
+
4
+based on [[infrared-dat]] tech
5
+
6
+![](2025-06-15-14-20-13.png)
7
+
8
+![](2025-12-12-16-02-53.png)
9
+
10
+![](2025-12-12-16-05-25.png)
11
+
12
+
13
+
14
+## ref
15
+
16
+- [[sensor-dat]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/2023-11-20-14-14-00.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/2023-11-20-14-14-00.png differ
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/2025-10-26-17-27-04.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/2025-10-26-17-27-04.png differ
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/sensor-IR-reflective-dat/sensor-IR-reflective-dat.md
... ...
@@ -0,0 +1,37 @@
1
+
2
+# sensor-IR-reflective-dat
3
+
4
+- [[sensor-photoelectric-dat]]
5
+
6
+## board
7
+
8
+- [[SMO1070-dat]] - [[SMO1003-dat]]
9
+
10
+
11
+## working principles
12
+
13
+该传感器模块对环境光线适应能力强，其具有一对红外线发射与接收管，发射管发射出一定频率的红外线，当检测方向遇到障碍物（反射面）时，红外线反射回来被接收管接收，经过比较器电路处理之后，绿色指示灯会亮起，同时信号输出接口输出数字信号（一个低电平信号），可通过电位器科比电子旋钮调节检测距离，有效距离范围2～30cm，工作电压为3.3V-5V。
14
+
15
+该传感器的探测距离可以通过电位器调节、具有干扰小、便于装配使用方便等特点，可以广泛应用于机器人避障、避障小车、流水线计数及黑白线循迹等众多场合。
16
+
17
+
18
+## Applications
19
+
20
+* Meter pulse data sampling
21
+* Paper shredder machine detection
22
+* Obstacle detection
23
+* Black and white line detection
24
+
25
+
26
+
27
+## IR TX RX pair module
28
+
29
+![](2023-11-20-14-14-00.png)
30
+
31
+![](2025-10-26-17-27-04.png)
32
+
33
+
34
+
35
+## ref
36
+
37
+- [[sensor-infrared-dat]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-Infrared-dat/sensor-Infrared-dat.md
... ...
@@ -0,0 +1,14 @@
1
+
2
+# sensor-Infrared-dat
3
+
4
+- [[sensor-Infrared-dat]] - [[sensor-IR-reflective-dat]] - [[line-finder-dat]]
5
+
6
+## Demo
7
+
8
+https://t.me/electrodragon3/192
9
+
10
+
11
+
12
+## ref
13
+
14
+- [[sensor-dat]]
... ...
\ No newline at end of file
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-hall-dat/2025-12-12-16-11-40.png
... ...
Binary files /dev/null and b/Tech-dat/Sensor-dat/sensor-motion-dat/sensor-hall-dat/2025-12-12-16-11-40.png differ
Tech-dat/Sensor-dat/sensor-motion-dat/sensor-hall-dat/sensor-hall-dat.md
... ...
@@ -7,6 +7,20 @@
7 7
WCS2800 - Hall Effect Base Linear Current Sensor
8 8
9 9
10
+## motor with hall sensor
11
+
12
+- [[motor-hall-dat]]
13
+
14
+![](2025-12-12-16-11-40.png)
15
+
16
+The AB phase encoder (left side of the diagram) outputs two pulse signals, A and B, which are orthogonal (90° out of phase), achieving a fourfold frequency harmonic. The speed measurement accuracy is four times that of a single-pulse encoder.
17
+
18
+A single-pulse encoder (right side of the diagram) outputs only one pulse and has lower accuracy than the AB phase encoder. Therefore, for applications requiring high speed measurement accuracy, the AB phase encoder is recommended.
19
+
20
+
21
+
22
+
23
+
10 24
## ref
11 25
12 26
- [[sensor-motion-dat]]
... ...
\ No newline at end of file
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-130-dat/2025-12-12-16-14-28.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-130-dat/2025-12-12-16-14-28.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-130-dat/2025-12-12-16-14-43.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-130-dat/2025-12-12-16-14-43.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-130-dat/2025-12-12-16-15-12.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-130-dat/2025-12-12-16-15-12.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-130-dat/motor-130-dat.md
... ...
@@ -0,0 +1,96 @@
1
+
2
+# motor-130-dat
3
+
4
+
5
+
6
+## advanced 130 motor
7
+
8
+![](2025-12-12-16-14-28.png)
9
+
10
+![](2025-12-12-16-14-43.png)
11
+
12
+![](2025-12-12-16-15-12.png)
13
+
14
+## info
15
+
16
+A **130 motor** is a standard miniature **brushed DC motor** widely used in toys, small robots, DIY electronics, and gearboxes. The "130" refers to the **size/form factor**, not a specific model. These motors are often interchangeable between brands.
17
+
18
+**Common Applications:**
19
+- Small wheeled robots
20
+- Toy cars and fans
21
+- Mini pumps
22
+- DIY electronics and STEM projects
23
+
24
+---
25
+
26
+## Physical Dimensions (Typical)
27
+| Parameter | Typical Value |
28
+|-------------------|-----------------------------|
29
+| Body Diameter | ~20 mm |
30
+| Body Length | ~25–28 mm |
31
+| Shaft Diameter | ~2 mm |
32
+| Shaft Length | ~8–11 mm |
33
+| Weight | ~14–25 g |
34
+
35
+---
36
+
37
+## Electrical Specifications (Typical)
38
+| Parameter | Typical Range |
39
+|---------------------------|--------------------------------------|
40
+| Operating Voltage | 1.5–12 V (common 3.7–6 V) |
41
+| Rated Voltage | ~6 V |
42
+| No-Load Speed | 9,000–20,000 RPM |
43
+| No-Load Current | 70–350 mA |
44
+| Loaded Speed | 4,500–10,000 RPM |
45
+| Loaded Current | 250–800 mA |
46
+| Stall Current | 500 mA up to several Amps |
47
+| Torque | 10–55 g·cm |
48
+| Typical Load Torque | ~10–55 g·cm |
49
+
50
+---
51
+
52
+## Operating Notes
53
+- Current draw increases with load; low at no-load, very high at stall.
54
+- Motors can overheat or burn if voltage exceeds rated value.
55
+- Use a motor driver or PWM control for speed regulation and safe operation.
56
+- Typical operating temperature: –10°C to +60°C
57
+
58
+---
59
+
60
+## Example Variants
61
+
62
+### Standard Hobby Motor
63
+- Voltage: ~6 V
64
+- No-load speed: ~9,100 RPM
65
+- No-load current: ≤70 mA
66
+- Loaded speed: ~4,500 RPM
67
+- Stall current: ~500 mA
68
+- Torque: ~10 g·cm
69
+
70
+### High-Speed / High-Power Variant
71
+- Voltage: ~1.5–3 V (operable higher)
72
+- Free-run speed: ~20,000 RPM @ 3 V
73
+- Free-run current: ~350 mA
74
+- Stall current: ~4 A
75
+- Stall torque: ~55 g·cm
76
+
77
+---
78
+
79
+**Summary Table**
80
+
81
+| Feature | Typical Range |
82
+|------------------|-------------------------------------|
83
+| Voltage | 1.5–12 V (common 3.7–6 V) |
84
+| No-Load Speed | 9,000–20,000 RPM |
85
+| No-Load Current | 70–350 mA |
86
+| Loaded Current | 250–800 mA |
87
+| Stall Current | ~500 mA to several Amps |
88
+| Torque | 10–55 g·cm |
89
+| Size | ~20 × 25–28 mm |
90
+| Weight | 14–25 g |
91
+
92
+
93
+
94
+## ref
95
+
96
+- [[motor-brushed-dat]]
... ...
\ No newline at end of file
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/motor-brushed-dat.md
... ...
@@ -1,8 +1,17 @@
1 1
2 2
# motor-brushed-dat
3 3
4
+
5
+
6
+
7
+
4 8
## Small Brushed DC Motor Series
5 9
10
+
11
+
12
+- [[motor-130-dat]]
13
+
14
+
6 15
| Motor Series | Size (approx.) | Voltage Range | Typical Power | Common Use |
7 16
| ------------ | --------------- | ------------- | ------------- | ----------------------------------------- |
8 17
| **N20** | 10 × 12 × 15 mm | 3V – 12V | <1 W | Micro robots, locks, cameras |
... ...
@@ -24,9 +33,9 @@
24 33
25 34
26 35
27
-- more powerful motors - [[BLDC-motor-dat]] - [[reduction-Gear-Motor-dat]]
28
-
36
+- more powerful motors - [[reduction-Gear-Motor-dat]] - [[motor-TT-dat]]
29 37
38
+- [[motor-brushless-dat]]
30 39
31 40
32 41
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/TT-motor-dat/2025-12-05-13-47-53.png
... ...
Binary files a/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/TT-motor-dat/2025-12-05-13-47-53.png and /dev/null differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/TT-motor-dat/2025-12-05-13-49-01.png
... ...
Binary files a/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/TT-motor-dat/2025-12-05-13-49-01.png and /dev/null differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/TT-motor-dat/2025-12-05-15-49-49.png
... ...
Binary files a/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/TT-motor-dat/2025-12-05-15-49-49.png and /dev/null differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/TT-motor-dat/TT-motor-dat.md
... ...
@@ -1,39 +0,0 @@
1
-
2
-# TT-motor-dat
3
-
4
-A TT motor is a type of DC motor commonly used in hobbyist robotics and DIY electronics projects. It's characterized by its yellow plastic gearbox and is often paired with a plastic wheel.
5
-
6
-
7
-![](2025-12-05-13-47-53.png)
8
-
9
-
10
-## specs
11
-
12
-![](2025-12-05-13-49-01.png)
13
-
14
-
15
-## dimension
16
-
17
-![](2025-12-05-15-49-49.png)
18
-
19
-
20
-
21
-## Key features mentioned include:
22
-
23
-- Gearbox: It typically has a plastic gearbox, often with a 1:48 or 1:120 gear ratio.
24
-- Voltage: Operates at voltages like 3V, 5V, or 6V.
25
-- Current:
26
- - No-load current is around 150mA at 3V and 170mA at 6V.
27
- - Stall current can be around 0.8A at 3V and up to 1.3A or 2.8A at 6V depending on the specific model.
28
-- Speed: No-load speed varies with voltage and gear ratio (e.g., 90-100 RPM at 3V, 180-250 RPM at 6V).
29
-- Torque: Stall torque is also voltage and gear ratio dependent (e.g., 0.8 kg.cm).
30
-- Shaft: Often has a dual shaft design.
31
-- EMF: Some versions may have built-in electromagnetic shielding or capacitors for EMF suppression.
32
-
33
-
34
-
35
-
36
-
37
-## ref
38
-
39
-- [[dc-gear-motor-dat]]
... ...
\ No newline at end of file
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-05-13-47-53.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-05-13-47-53.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-05-13-49-01.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-05-13-49-01.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-05-15-49-49.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-05-15-49-49.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-12-15-51-12.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-12-15-51-12.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-12-15-51-21.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-12-15-51-21.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-12-16-09-37.png
... ...
Binary files /dev/null and b/Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/2025-12-12-16-09-37.png differ
Tech-dat/acturator-dat/motor-dat/motor-brushed-dat/reduction-Gear-Motor-dat/motor-TT-dat/motor-TT-dat.md
... ...
@@ -0,0 +1,58 @@
1
+
2
+# motor-TT-dat
3
+
4
+A TT motor is a type of DC motor commonly used in hobbyist robotics and DIY electronics projects. It's characterized by its yellow plastic gearbox and is often paired with a plastic wheel.
5
+
6
+
7
+![](2025-12-05-13-47-53.png)
8
+
9
+![](2025-12-12-15-51-12.png)
10
+
11
+![](2025-12-12-15-51-21.png)
12
+
13
+based on motor [[motor-130-dat]]
14
+
15
+## specs
16
+
17
+- [[shaft-dat]] == single /dual shaft
18
+
19
+- [[gearbox-dat]]
20
+ - plastic
21
+ - metal
22
+
23
+- reduction ratio == 1:48 / 1:90 / 1:120 / 1:220
24
+
25
+
26
+![](2025-12-05-13-49-01.png)
27
+
28
+## TT motor with hall sensor
29
+
30
+![](2025-12-12-16-09-37.png)
31
+
32
+- [[sensor-hall-dat]]
33
+
34
+## dimension
35
+
36
+![](2025-12-05-15-49-49.png)
37
+
38
+
39
+
40
+## Key features mentioned include:
41
+
42
+- Gearbox: It typically has a plastic gearbox, often with a 1:48 or 1:120 gear ratio.
43
+- Voltage: Operates at voltages like 3V, 5V, or 6V.
44
+- Current:
45
+ - No-load current is around 150mA at 3V and 170mA at 6V.
46
+ - Stall current can be around 0.8A at 3V and up to 1.3A or 2.8A at 6V depending on the specific model.
47
+- Speed: No-load speed varies with voltage and gear ratio (e.g., 90-100 RPM at 3V, 180-250 RPM at 6V).
48
+- Torque: Stall torque is also voltage and gear ratio dependent (e.g., 0.8 kg.cm).
49
+- Shaft: Often has a dual shaft design.
50
+- EMF: Some versions may have built-in electromagnetic shielding or capacitors for EMF suppression.
51
+
52
+
53
+
54
+
55
+
56
+## ref
57
+
58
+- [[dc-gear-motor-dat]]
... ...
\ No newline at end of file
Tech-dat/acturator-dat/motor-dat/motor-dat.md
... ...
@@ -22,9 +22,9 @@
22 22
23 23
brushed
24 24
25
-- [[dc-motor-dat]] == Permanent Magnet Brushed DC Motor
25
+- [[motor-brushed-dat]] == Permanent Magnet Brushed DC Motor
26 26
27
-- [[DC-gear-motor-dat]] - [[TT-motor-dat]] - [[MG540-dat]] - [[MG513-dat]]
27
+- [[reduction-Gear-Motor-dat]] - [[TT-motor-dat]] - [[MG540-dat]] - [[MG513-dat]]
28 28
29 29
- [[coreless-motor-dat]]
30 30
Tech-dat/tech-dat.md
... ...
@@ -21,7 +21,9 @@
21 21
22 22
- [[antenna-dat]] - [[antenna-active-dat]] - [[antenna-passive-dat]]
23 23
24
-- [[app-dat]] - [[mechanics-dat]]
24
+- [[app-dat]] - [[rc-apps-dat]]
25
+
26
+- [[mechanics-dat]] - [[materials-dat]]
25 27
26 28
- [[clock-dat]]
27 29
app-dat/RC-apps-dat/rc-rover-dat/2025-06-15-12-56-47.png
... ...
Binary files a/app-dat/RC-apps-dat/rc-rover-dat/2025-06-15-12-56-47.png and /dev/null differ
app-dat/RC-apps-dat/rc-rover-dat/2025-06-15-13-03-31.png
... ...
Binary files a/app-dat/RC-apps-dat/rc-rover-dat/2025-06-15-13-03-31.png and /dev/null differ
app-dat/RC-apps-dat/rc-rover-dat/2025-06-15-14-10-56.png
... ...
Binary files a/app-dat/RC-apps-dat/rc-rover-dat/2025-06-15-14-10-56.png and /dev/null differ
app-dat/RC-apps-dat/rc-rover-dat/2025-06-15-14-22-34.png
... ...
Binary files a/app-dat/RC-apps-dat/rc-rover-dat/2025-06-15-14-22-34.png and /dev/null differ
app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-06-15-12-56-47.png
... ...
Binary files /dev/null and b/app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-06-15-12-56-47.png differ
app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-06-15-13-03-31.png
... ...
Binary files /dev/null and b/app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-06-15-13-03-31.png differ
app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-06-15-14-10-56.png
... ...
Binary files /dev/null and b/app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-06-15-14-10-56.png differ
app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-06-15-14-22-34.png
... ...
Binary files /dev/null and b/app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-06-15-14-22-34.png differ
app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-12-12-15-58-22.png
... ...
Binary files /dev/null and b/app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-12-12-15-58-22.png differ
app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-12-12-16-01-04.png
... ...
Binary files /dev/null and b/app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/2025-12-12-16-01-04.png differ
app-dat/RC-apps-dat/rc-rover-dat/rc-car-toy-dat/rc-car-toy-dat.md
... ...
@@ -0,0 +1,40 @@
1
+
2
+# rc-car-toy-dat
3
+
4
+
5
+## Rover Version 2
6
+
7
+
8
+assembly guide and teardown of a $20 RC toy car
9
+
10
+![](2025-12-12-15-58-22.png)
11
+
12
+![](2025-12-12-16-01-04.png)
13
+
14
+## Rover Version 1
15
+
16
+Very basic version
17
+
18
+including functions == [[ultrasonic-sensor-dat]], [[interactive-dat]] - [[infrared-dat]] - [[line-finder-dat]] - [[MCU-dat]] - [[chassis-dat]] - [[cad-dat]] - [[wheels-dat]] - [[PCB-accesories-dat]]
19
+
20
+![](2025-06-15-12-56-47.png)
21
+
22
+plastic chassis 4WD
23
+
24
+![](2025-06-15-13-03-31.png)
25
+
26
+![](2025-06-15-14-10-56.png)
27
+
28
+![](2025-06-15-14-22-34.png)
29
+
30
+basic demo code 1 here == [[RC-code-dat]]
31
+
32
+## ref
33
+
34
+- [[sensor-Infrared-dat]] - [[sensor-IR-reflective-dat]] - [[line-finder-dat]]
35
+
36
+- [[motor-driver-dat]] - [[L298-dat]]
37
+
38
+- [[motor-tt-dat]]
39
+
40
+- [[rc-rover-dat]]
app-dat/RC-apps-dat/rc-rover-dat/rc-rover-dat.md
... ...
@@ -16,6 +16,13 @@
16 16
- [[motor-rover-dat]]
17 17
18 18
19
+## build types
20
+
21
+- [[rc-car-toy-dat]] - [[rc-car-dat]] - [[Curiosity-rover-dat]] - [[app-remote-rover-dat]] - [[tank-dat]] - [[rc-vehicles-dat]]
22
+
23
+
24
+
25
+
19 26
## features
20 27
21 28
- [[servo-dat]] - [[gimbal-dat]] to take action or control [[sensor-Camera-dat]]
... ...
@@ -67,24 +74,6 @@
67 74
![](2025-11-27-15-34-08.png)
68 75
69 76
70
-## Rover Version
71
-
72
-Very basic version
73
-
74
-including functions == [[ultrasonic-sensor-dat]], [[interactive-dat]] - [[infrared-dat]] - [[line-finder-dat]] - [[MCU-dat]] - [[chassis-dat]] - [[cad-dat]] - [[wheels-dat]] - [[PCB-accesories-dat]]
75
-
76
-![](2025-06-15-12-56-47.png)
77
-
78
-plastic chassis 4WD
79
-
80
-![](2025-06-15-13-03-31.png)
81
-
82
-![](2025-06-15-14-10-56.png)
83
-
84
-![](2025-06-15-14-22-34.png)
85
-basic demo code 1 here == [[RC-code-dat]]
86
-
87
-
88 77
89 78
## code
90 79
app-dat/line-finder-dat/2025-06-15-14-20-13.png
... ...
Binary files a/app-dat/line-finder-dat/2025-06-15-14-20-13.png and /dev/null differ
app-dat/line-finder-dat/line-finder-dat.md
... ...
@@ -1,6 +0,0 @@
1
-
2
-# line-finder-dat
3
-
4
-based on [[infrared-dat]] tech
5
-
6
-![](2025-06-15-14-20-13.png)
... ...
\ No newline at end of file
materials-dat/coating-dat/coating-dat.md
... ...
@@ -6,6 +6,8 @@
6 6
- [[Conformal-Coating-dat]] - [[silicon-grease-dat]]
7 7
8 8
9
+- 颜料 - 丙烯
10
+
9 11
## ref
10 12
11 13
- [[materials-dat]]
... ...
\ No newline at end of file
materials-dat/plastic-dat/plastic-dat.md
... ...
@@ -6,6 +6,47 @@
6 6
- [[glue-waterproof-dat]]
7 7
8 8
9
+
10
+PU PTFE PP PA6 PE PVC FR4 PEEK Bakelite PVDF ABS NBR POM 6mm
11
+
12
+stainless steel / copper rod 3mm
13
+
14
+| Material (Rod) | Tensile Strength (MPa) | Yield Strength (MPa) | Toughness (Impact) |
15
+|----------------|-------------------------|------------------------|----------------------|
16
+| **Stainless Steel (3 mm, 304/316)** | 520–620 | 200–300 | ★★★★★ Very high |
17
+| **Copper (3 mm)** | 200–250 | 70–120 | ★★★★ Good |
18
+| **PEEK (6 mm)** | 90–100 | 80–95 | ★★★★ Good |
19
+| **FR4 (Fiberglass, 6 mm)** | 300–350 (in fiber direction) | ~250 | ★★★ Medium (brittle) |
20
+| **POM / Acetal (6 mm)** | 60–70 | 55–65 | ★★★★ Good |
21
+| **PA6 / Nylon 6 (6 mm)** | 60–80 | 45–70 | ★★★★ Good (better when moist) |
22
+| **PVC (6 mm)** | 45–55 | 40–50 | ★★★ Medium |
23
+| **PVDF (6 mm)** | 45–55 | 40–50 | ★★★ Medium |
24
+| **ABS (6 mm)** | 35–50 | 30–40 | ★★★ Medium–High |
25
+| **PU (Polyurethane, 6 mm)** | 25–55 | 25–45 | ★★★★★ Very tough/elastic |
26
+| **PP (6 mm)** | 25–40 | 20–35 | ★★★ Medium (brittle when cold) |
27
+| **PTFE (6 mm)** | 20–30 | 10–20 | ★★ Low, very soft |
28
+| **PE (HDPE, 6 mm)** | 20–35 | 15–30 | ★★★ Medium |
29
+| **Bakelite (Phenolic, 6 mm)** | 50–100 | 40–60 | ★★ Very brittle |
30
+| **NBR (Rubber, 6 mm)** | ~15 | N/A (elastomer) | ★★★★★ Extremely tough but soft |
31
+
32
+
33
+
34
+Ranking by Tensile Strength (highest → lowest)
35
+
36
+- Stainless steel (3 mm)
37
+- FR4 (6 mm)
38
+- Copper (3 mm)
39
+- PEEK (6 mm)
40
+- PA6 / POM / PVC / PVDF (6 mm)
41
+- ABS / PP / PU / PE (6 mm)
42
+- PTFE (6 mm) (very soft, creeps heavily)
43
+- NBR (rubber) (not for structural load)
44
+
45
+
46
+
47
+
48
+
49
+
9 50
PA66: This stands for Polyamide 66, which is a type of nylon. It's a common engineering thermoplastic known for its high mechanical strength, rigidity, and excellent resistance to heat and chemicals. It's often used to make durable enclosures for electronics, some of which are designed to be waterproof.
10 51
11 52
- [[ABS-dat]]
mechanics-dat/mechanical-structure-dat/rod-system-dat/Shaft-dat/Shaft-Cross-Connector-dat/2025-12-12-12-37-08.png
... ...
Binary files /dev/null and b/mechanics-dat/mechanical-structure-dat/rod-system-dat/Shaft-dat/Shaft-Cross-Connector-dat/2025-12-12-12-37-08.png differ
mechanics-dat/mechanical-structure-dat/rod-system-dat/Shaft-dat/Shaft-Cross-Connector-dat/2025-12-12-12-37-18.png
... ...
Binary files /dev/null and b/mechanics-dat/mechanical-structure-dat/rod-system-dat/Shaft-dat/Shaft-Cross-Connector-dat/2025-12-12-12-37-18.png differ
mechanics-dat/mechanical-structure-dat/rod-system-dat/Shaft-dat/Shaft-Cross-Connector-dat/Shaft-Cross-Connector-dat.md
... ...
@@ -6,8 +6,17 @@
6 6
7 7
## types
8 8
9
+cross connector 1
10
+
9 11
![](2025-12-10-01-53-28.png)
10 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
+
11 20
12 21
## apps
13 22
mechanics-dat/mechanical-structure-dat/rod-system-dat/Shaft-dat/Shaft-dat.md
... ...
@@ -1,4 +1,3 @@
1
-
2 1
# Shaft-dat
3 2
4 3
... ...
@@ -14,7 +13,7 @@
14 13
15 14
## smooth shaft accessories
16 15
17
-- [[shaft-limit-ring-dat]]
16
+- [[shaft-limit-ring-dat]] == Hose clamp
18 17
19 18
- [[shaft-coupler-dat]]
20 19
... ...
@@ -27,6 +26,62 @@
27 26
28 27
- [[shaft-dat]] - [[shaft-waterproof-dat]] - [[waterproof-dat]]
29 28
29
+
30
+
31
+## Shaft cutting
32
+
33
+Is it dangerous to cut a 6 mm smooth shaft (steel) with an angle grinder?
34
+
35
+Yes. There are risks, especially in the following situations:
36
+
37
+1. High angle grinder speed
38
+
39
+Angle grinders typically run above 10,000 RPM. When cutting metal, if the workpiece is not clamped securely or the angle is wrong and the shaft rolls, this can cause:
40
+
41
+- Hand injury (kickback)
42
+- Workpiece ejection
43
+- Cutting wheel shattering (severe hazard)
44
+
45
+2. Round shaft is hard to secure
46
+
47
+A round shaft can roll or be grabbed by the wheel, which may lead to:
48
+
49
+- Disc jam
50
+- Thrown workpiece
51
+
52
+3. Cutting discs are unfriendly to small-diameter metal
53
+
54
+Cutting thin rods → easy to bite → can cause kickback
55
+
56
+How to make it safer
57
+
58
+- Use proper fixturing
59
+
60
+ Secure the shaft. Recommended:
61
+
62
+ - Use a bench vise (required)
63
+ - Wrap the clamped area with aluminum or wood to prevent slipping
64
+
65
+- Use a cut-off disc, not a grinding disc
66
+
67
+ Use a metal cut-off disc (thin cut-off). Do not use a grinding disc to sever the shaft.
68
+
69
+- Wear personal protective equipment
70
+
71
+ - Safety goggles
72
+ - Cut-resistant gloves
73
+ - Long sleeves
74
+
75
+- Avoid contacting the wheel side
76
+
77
+ Use only the thin cutting edge of the disc; do not apply side pressure.
78
+
79
+- Cut gently, do not force
80
+
81
+ Keep a steady motion; do not rock the shaft.
82
+
83
+
84
+
30 85
## ref
31 86
32 87
- [[rod-system-dat]]