Changes in 921e187: alu

				Board-dat/MPC/MPC1073-DAT/MPC1073-test-log-dat/MPC1073-test-log-dat.md
			
          @@ -75,6 +75,8 @@ multiplexing =1

           Tested panel is 64x32 P4-256x128-2121-A1, multiplexing=0

               ./examples-api-use/demo -D 0 --led-cols=64 --led-rows=32 --led-multiplexing=0

          +    ./examples-api-use/demo -D 0 --led-cols=64 --led-rows=32 --led-multiplexing=0 --led-no-hardware-pulse

          +    ./demo -D 1 runtext.ppm --led-slowdown-gpio=4 --led-cols=64 --led-rows=32 --led-no-hardware-pulse 

           ![](2024-11-07-18-11-15.png)

				Tech-dat/waterproof-dat/waterproof-dat.md
			
          @@ -0,0 +1,30 @@

          +

          +# waterproof-dat

          +

          +- [[CONN-waterproof-dat]]

          +

          +- [[waterproof-tape-dat]] == 布基胶带 

          +

          +

          +## waterproof level 

          +

          +- IP69 

          +

          +- IP68 

          +

          +- PA66 - [[plastic-dat]]

          +

          +- IPX68 

          +

          +

          +

          +

          +

          +

          +## ref 

          +

          +- [[waterproof]]

          +

          +- [[onshape-dat]]

          +

          +

				app-dat/PNP-openpnp-dat/PixiePlacer-dat/PixiePlacer-Frame-dat/PixiePlacer-Frame-dat.md
			
          @@ -10,7 +10,7 @@

           ## knowledge 

          -1. [[structure-dat]] - [[Alu_Extrusion-dat]] 

          +1. [[structure-dat]] - [[Alu-Extrusion-dat]] 

           2. [[mechanics-dat]] - [[Linear-Rail-dat]]

          @@ -83,7 +83,7 @@ Alu_L_Bracket == Joint Board Plate Corner Angle Bracket Connection Joint Strip

           Alu_Angle == 2020 Aluminium Corner Bracket

          -- [[Alu_Extrusion-dat]] - [[T-nut-dat]] - [[screws-dat]]

          +- [[Alu-Extrusion-dat]] - [[T-nut-dat]] - [[screws-dat]]

           ### y axis

				app-dat/PNP-openpnp-dat/PixiePlacer-dat/PixiePlacer-Y-dat/PixiePlacer-Y-dat.md
			
          @@ -2,7 +2,7 @@

           # PixiePlacer-Y-dat.md

          -- [[motion-system-dat]] - [[alu_extrusion-dat]]

          +- [[motion-system-dat]] - [[Alu-Extrusion-dat]]

           ## 3D View

				app-dat/PNP-openpnp-dat/PixiePlacer-dat/PixiePlacer-dat.md
			
          @@ -9,7 +9,7 @@

           - raw BOM file [[PixiePlacer-BOM-dat]]

          -- [[PixiePlacer-Frame-dat]] - [[ALU_extrusion-dat]]

          +- [[PixiePlacer-Frame-dat]] - [[Alu-Extrusion-dat]]

           - [[PixiePlacer-Y-dat]]

				app-dat/vehicle-dat/electric-kart-dat/electric-kart-dat.md
			
          @@ -38,7 +38,7 @@ already had a steering system.

           ## electric go-kart

          -with suspension system, and [[Alu_Extrusion-dat]] [[frame-dat]]

          +with suspension system, and [[Alu-Extrusion-dat]] [[frame-dat]]

           highly customizable, you can add a seat, and a steering wheel, and even a brake system.

				mechanics-dat/Alu_Extrusion-dat/2025-02-19-14-30-08.png
			
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				mechanics-dat/Alu_Extrusion-dat/2025-02-19-14-31-59.png
			
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				mechanics-dat/Alu_Extrusion-dat/2025-02-19-14-33-26.png
			
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				mechanics-dat/Alu_Extrusion-dat/2025-02-26-19-36-59.png
			
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				mechanics-dat/Alu_Extrusion-dat/2025-02-26-19-37-15.png
			
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				mechanics-dat/Alu_Extrusion-dat/2025-02-26-19-39-21.png
			
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				mechanics-dat/Alu_Extrusion-dat/ALU-extrusion-2040-sys-dat/ALU-extrusion-2040-sys-dat.md
			
          @@ -1,8 +0,0 @@

          -

          -# ALU-extrusion-2040-sys-dat

          -

          -- [[alu_extrusion]]

          -

          -## ref 

          -

          -- [[ALU-extrusion-2040-sys]]

          \ No newline at end of file

				mechanics-dat/Alu_Extrusion-dat/Alu_Extrusion-dat.md
			
          @@ -1,86 +0,0 @@

          -

          -# Alu_Extrusion-dat

          -

          -

          -- [[Alu_Extrusion]] - [[screws-dat]] - [[t-nut-dat]]

          -

          -- [[case-aluminium-extrusion-dat]]

          -

          -## Aluminum Extrusion Profiles

          -

          -| Profile Type | Dimensions (mm) | Typical Applications                                        |

          -| ------------ | --------------- | ----------------------------------------------------------- |

          -| 2020         | 20x20           | Lightweight frames, 3D printer structures, enclosures       |

          -| 2040         | 20x40           | Machine guards, small CNC frames, automation projects       |

          -| 3030         | 30x30           | Medium-duty frames, workbenches, conveyor systems           |

          -| 3060         | 30x60           | Robot frames, furniture, machine structures                 |

          -| 4040         | 40x40           | Industrial automation, machine bases, heavy-duty structures |

          -| 4080         | 40x80           | Large machine frames, CNC machines, conveyor systems        |

          -| 4545         | 45x45           | High-strength structures, machine enclosures                |

          -| 4590         | 45x90           | Industrial racking, automation systems                      |

          -| 5050         | 50x50           | Structural supports, high-load frames                       |

          -| 6060         | 60x60           | Heavy-duty machine frames, CNC enclosures                   |

          -| 8080         | 80x80           | Large industrial structures, load-bearing frames            |

          -

          -

          -### 2020 

          -

          -M3 T-nut + M3*10

          -

          -

          -

          -

          -### 4040 dual groove 

          -

          -![](2025-02-26-19-36-59.png)

          -

          -![](2025-02-26-19-37-15.png)

          -

          -groove size 5.5 mm

          -

          -### extra profiles: 

          -

          -- 15x15

          -

          -thickness version 1.0 mm, other versions include 1.5 mm, 0.8 mm

          -

          -![](2025-02-19-14-30-08.png)

          -

          -![](2025-02-19-14-31-59.png)

          -

          -

          -

          -

          -

          -### 2040 

          -

          -- version: 2024L, 2040V

          -

          -![](2025-02-19-14-33-26.png)

          -

          -## Accessories 

          -

          -| ALU Profile | T-nut Type | T-nut Size | Screw Type | Screw Size | Common Lengths         |

          -| ----------- | ---------- | ---------- | ---------- | ---------- | ---------------------- |

          -| 1515        | T-nut      | M5         | Bolt       | M5         | 10mm, 20mm, 30mm       |

          -| 2020        | T-nut      | M5         | Bolt       | M5         | 10mm, 20mm, 30mm       |

          -| 4040        | T-nut      | M6         | Bolt       | M6         | 10mm, 20mm, 30mm, 40mm |

          -

          -

          -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.

          -

          -

          -

          -

          -

          -## APP 

          -

          -![](2025-02-26-19-39-21.png)

          -

          -

          -

          -## ref 

          -

          -- [[mechanics-dat]] - [[mechanics]]

          -

          -- [[Alu_Extrusion]]

          \ No newline at end of file

				mechanics-dat/Alu_Extrusion-dat/Profile-Angle-dat/2025-02-19-13-49-22.png
			
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				mechanics-dat/Alu_Extrusion-dat/Profile-Angle-dat/2025-03-20-14-51-11.png
			
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				mechanics-dat/Alu_Extrusion-dat/Profile-Angle-dat/Profile-Angle-dat.md
			
          @@ -1,11 +0,0 @@

          -

          -# Profile-Angle-dat

          -

          -### Profile Angle == 角码

          -

          -type: 2020

          -

          -

          -![](2025-02-19-13-49-22.png)

          -

          -![](2025-03-20-14-51-11.png)

				mechanics-dat/Alu_Extrusion-dat/Profile-Bracket-dat/2025-02-19-13-48-31.png
			
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				mechanics-dat/Alu_Extrusion-dat/Profile-Bracket-dat/2025-02-26-19-29-48.png
			
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				mechanics-dat/Alu_Extrusion-dat/Profile-Bracket-dat/Profile-Bracket-dat.md
			
          @@ -1,18 +0,0 @@

          -

          -# Profile-Bracket-dat

          -

          -### Profile Bracket

          -

          -L-type 

          -

          -![](2025-02-19-13-48-31.png)

          -

          -L and T type Bracket for 4040

          -

          -![](2025-02-26-19-29-48.png)

          -

          -L and T type Bracket for 2020

          -

          -![](2025-02-19-17-50-13.png)

          -

          -

				mechanics-dat/Alu_Extrusion-dat/case-aluminium-extrusion-dat/case-aluminium-extrusion-dat.md
			
          @@ -1,15 +0,0 @@

          -

          -# case-aluminium-extrusion-dat

          -

          -- [[Alu_Extrusion-dat]]

          -

          -- [[PENS010-dat]]

          -

          -

          -

          -

          -

          -

          -## ref 

          -

          -- [[case-dat]]

          \ No newline at end of file

				mechanics-dat/CAD-dat/onshape-dat/onshape-dat.md
			
          @@ -1,6 +1,13 @@

           # onshape-dat

          +

          +## relevant 

          +

          +- [[ALU-extrusion-dat]] - [[Alu_Extrusion-dat]]

          +

          +## commands 

          +

               shift + enter

               Accept & repeat command

               enter

          @@ -79,4 +86,9 @@

               Tab manager

               ctrl/cmd

               z

          -    Undo

          \ No newline at end of file

          +    Undo

          +

          +

          +## ref 

          +

          +- [[cad-dat]]

          \ No newline at end of file

				mechanics-dat/Nut-dat/T-nut-dat/T-nut-dat.md
			
          @@ -3,11 +3,11 @@

           ## specs 

          -20 - M5 - 10 - 6 == for groove width 6.2 mm 2020 [[Alu_Extrusion-dat]]

          +20 - M5 - 10 - 6 == for groove width 6.2 mm 2020 [[Alu-Extrusion-dat]]

           ![](2025-03-13-17-28-08.png)

          -40 - M5 - 19.5 - 8 == for groove width 8.2 mm 4040 [[Alu_Extrusion-dat]]

          +40 - M5 - 19.5 - 8 == for groove width 8.2 mm 4040 [[Alu-Extrusion-dat]]

           ![](2025-03-13-17-29-21.png)

				mechanics-dat/alu-extrusion-dat/2025-02-19-14-33-26.png
			
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				mechanics-dat/alu-extrusion-dat/ALU-extrusion-1515-sys-dat/ALU-extrusion-1515-sys-dat.md
			
          @@ -0,0 +1,37 @@

          +

          +# ALU-extrusion-1515-sys-dat

          +

          +

          +## accessories

          +

          +- [[Profile-Bracket-dat]] - [[Profile-Angle-dat]]

          +

          +

          +### extra profiles: 

          +

          +- 15x15

          +

          +thickness version 1.0 mm, other versions include 1.5 mm, 0.8 mm

          +

          +![](2025-02-19-14-30-08.png)

          +

          +

          +profile center hole 3.3 mm 

          +

          +![](2025-02-19-14-31-59.png)

          +

          +

          +

          +

          +## baba-hao 

          +

          +- [[waterproof]]

          +

          +https://cad.onshape.com/documents/347c235acb7b3e9f2a3c1f2a/w/326f6dc5e165bd0946fc1c4f/e/68a18b214d8e792586952603

          +

          +

          +## ref 

          +

          +- [[ALU-extrusion-1515-sys]]

          +

          +- [[alu-extrusion-dat]]

          \ No newline at end of file

				mechanics-dat/alu-extrusion-dat/ALU-extrusion-2040-sys-dat/ALU-extrusion-2040-sys-dat.md
			
          @@ -0,0 +1,8 @@

          +

          +# ALU-extrusion-2040-sys-dat

          +

          +- [[alu_extrusion]]

          +

          +## ref 

          +

          +- [[ALU-extrusion-2040-sys]]

          \ No newline at end of file

				mechanics-dat/alu-extrusion-dat/Alu-Extrusion-dat.md
			
          @@ -0,0 +1,77 @@

          +

          +# Alu-Extrusion-dat

          +

          +

          +- [[Alu-Extrusion]] - [[screws-dat]] - [[t-nut-dat]]

          +

          +- [[case-aluminium-extrusion-dat]]

          +

          +

          +- [[ALU-extrusion-1515-sys-dat]]

          +

          +## Aluminum Extrusion Profiles

          +

          +| Profile Type | Dimensions (mm) | Typical Applications                                        |

          +| ------------ | --------------- | ----------------------------------------------------------- |

          +| 2020         | 20x20           | Lightweight frames, 3D printer structures, enclosures       |

          +| 2040         | 20x40           | Machine guards, small CNC frames, automation projects       |

          +| 3030         | 30x30           | Medium-duty frames, workbenches, conveyor systems           |

          +| 3060         | 30x60           | Robot frames, furniture, machine structures                 |

          +| 4040         | 40x40           | Industrial automation, machine bases, heavy-duty structures |

          +| 4080         | 40x80           | Large machine frames, CNC machines, conveyor systems        |

          +| 4545         | 45x45           | High-strength structures, machine enclosures                |

          +| 4590         | 45x90           | Industrial racking, automation systems                      |

          +| 5050         | 50x50           | Structural supports, high-load frames                       |

          +| 6060         | 60x60           | Heavy-duty machine frames, CNC enclosures                   |

          +| 8080         | 80x80           | Large industrial structures, load-bearing frames            |

          +

          +

          +### 2020 

          +

          +M3 T-nut + M3*10

          +

          +

          +

          +

          +### 4040 dual groove 

          +

          +![](2025-02-26-19-36-59.png)

          +

          +![](2025-02-26-19-37-15.png)

          +

          +groove size 5.5 mm

          +

          +

          +

          +### 2040 

          +

          +- version: 2024L, 2040V

          +

          +![](2025-02-19-14-33-26.png)

          +

          +## Accessories 

          +

          +| ALU Profile | T-nut Type | T-nut Size | Screw Type | Screw Size | Common Lengths         |

          +| ----------- | ---------- | ---------- | ---------- | ---------- | ---------------------- |

          +| 1515        | T-nut      | M5         | Bolt       | M5         | 10mm, 20mm, 30mm       |

          +| 2020        | T-nut      | M5         | Bolt       | M5         | 10mm, 20mm, 30mm       |

          +| 4040        | T-nut      | M6         | Bolt       | M6         | 10mm, 20mm, 30mm, 40mm |

          +

          +

          +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.

          +

          +

          +

          +

          +

          +## APP 

          +

          +![](2025-02-26-19-39-21.png)

          +

          +

          +

          +## ref 

          +

          +- [[mechanics-dat]] - [[mechanics]]

          +

          +- [[Alu-Extrusion]]

          \ No newline at end of file

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				mechanics-dat/alu-extrusion-dat/Profile-Angle-dat/Profile-Angle-dat.md
			
          @@ -0,0 +1,51 @@

          +

          +# Profile-Angle-dat

          +

          +### Profile Angle == 角码

          +

          +

          +

          +### 1515 

          +

          +![](2025-11-21-17-25-03.png)

          +

          +- 20 x 20 x width 15 

          +- internal width == 11 for [[washer-dat]]

          +- hole == 4.8 mm 

          +

          +

          +

          +### type: 2020

          +

          +width == 20 

          +

          +![](2025-02-19-13-49-22.png)

          +

          +![](2025-03-20-14-51-11.png)

          +

          +

          +

          +## installation 

          +

          +![](2025-11-21-16-58-15.png)

          +

          +![](2025-11-21-16-58-32.png)

          +

          +![](2025-11-21-16-58-59.png)

          +

          +- t-nut 

          +- screw 

          +- washers

          +

          +| components         | specs |

          +| ------------------ | ----- |

          +| angle              | 1515  |

          +| t-nut              | 15M4  |

          +| hex [[screws-dat]] |       |

          +| washers            |       |

          +

          +

          +

          +## ref 

          +

          +- [[alu-extrusion-dat]]

          \ No newline at end of file

				mechanics-dat/alu-extrusion-dat/Profile-Bracket-dat/2025-02-19-13-48-31.png
			
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				mechanics-dat/alu-extrusion-dat/Profile-Bracket-dat/Profile-Bracket-dat.md
			
          @@ -0,0 +1,18 @@

          +

          +# Profile-Bracket-dat

          +

          +### Profile Bracket

          +

          +L-type 

          +

          +![](2025-02-19-13-48-31.png)

          +

          +L and T type Bracket for 4040

          +

          +![](2025-02-26-19-29-48.png)

          +

          +L and T type Bracket for 2020

          +

          +![](2025-02-19-17-50-13.png)

          +

          +

				mechanics-dat/alu-extrusion-dat/case-aluminium-extrusion-dat/case-aluminium-extrusion-dat.md
			
          @@ -0,0 +1,15 @@

          +

          +# case-aluminium-extrusion-dat

          +

          +- [[Alu-Extrusion-dat]]

          +

          +- [[PENS010-dat]]

          +

          +

          +

          +

          +

          +

          +## ref 

          +

          +- [[case-dat]]

          \ No newline at end of file

				mechanics-dat/alu-extrusion-dat/profile-t-nut-dat/2025-11-21-17-21-55.png
			
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				mechanics-dat/alu-extrusion-dat/profile-t-nut-dat/profile-t-nut-dat.md
			
          @@ -0,0 +1,16 @@

          +

          +# profile-t-nut-dat

          +

          +## 1515M4 

          +

          +![](2025-11-21-17-21-55.png)

          +

          +- L == 8.5 mm - W == 6 mm - T == 2.4 mm

          +

          +

          +

          +

          +

          +## ref 

          +

          +- [[alu-extrusion-dat]]

          \ No newline at end of file

				mechanics-dat/plastic-dat/plastic-dat.md
			
          @@ -3,3 +3,4 @@

           - [[Heat-Set-Insert-dat]]

          +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.

          \ No newline at end of file

				mechanics-dat/screws-dat/screws-dat.md
			
          @@ -32,6 +32,18 @@

           | **Common Example**    | Hex bolt with nut on the other end                 | Wood screw going into wood directly                                 |

          +

          +## fit size 

          +

          +### Common Screw Size Reference

          +

          +| Item                                 | M3         | M4      |

          +| ------------------------------------ | ---------- | ------- |

          +| **Screw Shaft Diameter**             | 3.0 mm     | 4.0 mm  |

          +| **Button/Socket Head Diameter**      | 5.5–6.0 mm | 7.0 mm  |

          +| **Countersunk Head Diameter**        | ~5.6 mm    | ~7.5 mm |

          +| **Washer Outer Diameter (standard)** | 6.0 mm     | 8.0 mm  |

          +

           ## common used bolt 

           - hex head bolt

...	...	@@ -75,6 +75,8 @@ multiplexing =1
75	75	Tested panel is 64x32 P4-256x128-2121-A1, multiplexing=0
76	76
77	77	./examples-api-use/demo -D 0 --led-cols=64 --led-rows=32 --led-multiplexing=0
	78	+ ./examples-api-use/demo -D 0 --led-cols=64 --led-rows=32 --led-multiplexing=0 --led-no-hardware-pulse
	79	+ ./demo -D 1 runtext.ppm --led-slowdown-gpio=4 --led-cols=64 --led-rows=32 --led-no-hardware-pulse
78	80
79	81	![](2024-11-07-18-11-15.png)
80	82

...	...	@@ -0,0 +1,30 @@
	1	+
	2	+# waterproof-dat
	3	+
	4	+- [[CONN-waterproof-dat]]
	5	+
	6	+- [[waterproof-tape-dat]] == 布基胶带
	7	+
	8	+
	9	+## waterproof level
	10	+
	11	+- IP69
	12	+
	13	+- IP68
	14	+
	15	+- PA66 - [[plastic-dat]]
	16	+
	17	+- IPX68
	18	+
	19	+
	20	+
	21	+
	22	+
	23	+
	24	+## ref
	25	+
	26	+- [[waterproof]]
	27	+
	28	+- [[onshape-dat]]
	29	+
	30	+

...	...	@@ -10,7 +10,7 @@
10	10
11	11	## knowledge
12	12
13		-1. [[structure-dat]] - [[Alu_Extrusion-dat]]
	13	+1. [[structure-dat]] - [[Alu-Extrusion-dat]]
14	14
15	15	2. [[mechanics-dat]] - [[Linear-Rail-dat]]
16	16
...	...	@@ -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]] - [[screws-dat]]
87	87
88	88	### y axis
89	89

...	...	@@ -2,7 +2,7 @@
2	2	# PixiePlacer-Y-dat.md
3	3
4	4
5		-- [[motion-system-dat]] - [[alu_extrusion-dat]]
	5	+- [[motion-system-dat]] - [[Alu-Extrusion-dat]]
6	6
7	7	## 3D View
8	8

...	...	@@ -9,7 +9,7 @@
9	9
10	10	- raw BOM file [[PixiePlacer-BOM-dat]]
11	11
12		-- [[PixiePlacer-Frame-dat]] - [[ALU_extrusion-dat]]
	12	+- [[PixiePlacer-Frame-dat]] - [[Alu-Extrusion-dat]]
13	13
14	14	- [[PixiePlacer-Y-dat]]
15	15

...	...	@@ -38,7 +38,7 @@ already had a steering system.
38	38
39	39	## electric go-kart
40	40
41		-with suspension system, and [[Alu_Extrusion-dat]] [[frame-dat]]
	41	+with suspension system, and [[Alu-Extrusion-dat]] [[frame-dat]]
42	42
43	43	highly customizable, you can add a seat, and a steering wheel, and even a brake system.
44	44

...	...	@@ -1,8 +0,0 @@
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

...	...	@@ -1,86 +0,0 @@
1		-
2		-# Alu_Extrusion-dat
3		-
4		-
5		-- [[Alu_Extrusion]] - [[screws-dat]] - [[t-nut-dat]]
6		-
7		-- [[case-aluminium-extrusion-dat]]
8		-
9		-## Aluminum Extrusion Profiles
10		-
11		-\| Profile Type \| Dimensions (mm) \| Typical Applications \|
12		-\| ------------ \| --------------- \| ----------------------------------------------------------- \|
13		-\| 2020 \| 20x20 \| Lightweight frames, 3D printer structures, enclosures \|
14		-\| 2040 \| 20x40 \| Machine guards, small CNC frames, automation projects \|
15		-\| 3030 \| 30x30 \| Medium-duty frames, workbenches, conveyor systems \|
16		-\| 3060 \| 30x60 \| Robot frames, furniture, machine structures \|
17		-\| 4040 \| 40x40 \| Industrial automation, machine bases, heavy-duty structures \|
18		-\| 4080 \| 40x80 \| Large machine frames, CNC machines, conveyor systems \|
19		-\| 4545 \| 45x45 \| High-strength structures, machine enclosures \|
20		-\| 4590 \| 45x90 \| Industrial racking, automation systems \|
21		-\| 5050 \| 50x50 \| Structural supports, high-load frames \|
22		-\| 6060 \| 60x60 \| Heavy-duty machine frames, CNC enclosures \|
23		-\| 8080 \| 80x80 \| Large industrial structures, load-bearing frames \|
24		-
25		-
26		-### 2020
27		-
28		-M3 T-nut + M3*10
29		-
30		-
31		-
32		-
33		-### 4040 dual groove
34		-
35		-![](2025-02-26-19-36-59.png)
36		-
37		-![](2025-02-26-19-37-15.png)
38		-
39		-groove size 5.5 mm
40		-
41		-### extra profiles:
42		-
43		-- 15x15
44		-
45		-thickness version 1.0 mm, other versions include 1.5 mm, 0.8 mm
46		-
47		-![](2025-02-19-14-30-08.png)
48		-
49		-![](2025-02-19-14-31-59.png)
50		-
51		-
52		-
53		-
54		-
55		-### 2040
56		-
57		-- version: 2024L, 2040V
58		-
59		-![](2025-02-19-14-33-26.png)
60		-
61		-## Accessories
62		-
63		-\| ALU Profile \| T-nut Type \| T-nut Size \| Screw Type \| Screw Size \| Common Lengths \|
64		-\| ----------- \| ---------- \| ---------- \| ---------- \| ---------- \| ---------------------- \|
65		-\| 1515 \| T-nut \| M5 \| Bolt \| M5 \| 10mm, 20mm, 30mm \|
66		-\| 2020 \| T-nut \| M5 \| Bolt \| M5 \| 10mm, 20mm, 30mm \|
67		-\| 4040 \| T-nut \| M6 \| Bolt \| M6 \| 10mm, 20mm, 30mm, 40mm \|
68		-
69		-
70		-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.
71		-
72		-
73		-
74		-
75		-
76		-## APP
77		-
78		-![](2025-02-26-19-39-21.png)
79		-
80		-
81		-
82		-## ref
83		-
84		-- [[mechanics-dat]] - [[mechanics]]
85		-
86		-- [[Alu_Extrusion]]
...	...	\ No newline at end of file

...	...	@@ -1,11 +0,0 @@
1		-
2		-# Profile-Angle-dat
3		-
4		-### Profile Angle == 角码
5		-
6		-type: 2020
7		-
8		-
9		-![](2025-02-19-13-49-22.png)
10		-
11		-![](2025-03-20-14-51-11.png)

...	...	@@ -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		-

...	...	@@ -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

...	...	@@ -1,6 +1,13 @@
1	1
2	2	# onshape-dat
3	3
	4	+
	5	+## relevant
	6	+
	7	+- [[ALU-extrusion-dat]] - [[Alu_Extrusion-dat]]
	8	+
	9	+## commands
	10	+
4	11	shift + enter
5	12	Accept & repeat command
6	13	enter
...	...	@@ -79,4 +86,9 @@
79	86	Tab manager
80	87	ctrl/cmd
81	88	z
82		- Undo
...	...	\ No newline at end of file
	0	+ Undo
	1	+
	2	+
	3	+## ref
	4	+
	5	+- [[cad-dat]]
...	...	\ No newline at end of file

...	...	@@ -3,11 +3,11 @@
3	3
4	4	## specs
5	5
6		-20 - M5 - 10 - 6 == for groove width 6.2 mm 2020 [[Alu_Extrusion-dat]]
	6	+20 - M5 - 10 - 6 == for groove width 6.2 mm 2020 [[Alu-Extrusion-dat]]
7	7
8	8	![](2025-03-13-17-28-08.png)
9	9
10		-40 - M5 - 19.5 - 8 == for groove width 8.2 mm 4040 [[Alu_Extrusion-dat]]
	10	+40 - M5 - 19.5 - 8 == for groove width 8.2 mm 4040 [[Alu-Extrusion-dat]]
11	11
12	12	![](2025-03-13-17-29-21.png)
13	13

...	...	@@ -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

...	...	@@ -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

...	...	@@ -0,0 +1,77 @@
	1	+
	2	+# Alu-Extrusion-dat
	3	+
	4	+
	5	+- [[Alu-Extrusion]] - [[screws-dat]] - [[t-nut-dat]]
	6	+
	7	+- [[case-aluminium-extrusion-dat]]
	8	+
	9	+
	10	+- [[ALU-extrusion-1515-sys-dat]]
	11	+
	12	+## Aluminum Extrusion Profiles
	13	+
	14	+\| Profile Type \| Dimensions (mm) \| Typical Applications \|
	15	+\| ------------ \| --------------- \| ----------------------------------------------------------- \|
	16	+\| 2020 \| 20x20 \| Lightweight frames, 3D printer structures, enclosures \|
	17	+\| 2040 \| 20x40 \| Machine guards, small CNC frames, automation projects \|
	18	+\| 3030 \| 30x30 \| Medium-duty frames, workbenches, conveyor systems \|
	19	+\| 3060 \| 30x60 \| Robot frames, furniture, machine structures \|
	20	+\| 4040 \| 40x40 \| Industrial automation, machine bases, heavy-duty structures \|
	21	+\| 4080 \| 40x80 \| Large machine frames, CNC machines, conveyor systems \|
	22	+\| 4545 \| 45x45 \| High-strength structures, machine enclosures \|
	23	+\| 4590 \| 45x90 \| Industrial racking, automation systems \|
	24	+\| 5050 \| 50x50 \| Structural supports, high-load frames \|
	25	+\| 6060 \| 60x60 \| Heavy-duty machine frames, CNC enclosures \|
	26	+\| 8080 \| 80x80 \| Large industrial structures, load-bearing frames \|
	27	+
	28	+
	29	+### 2020
	30	+
	31	+M3 T-nut + M3*10
	32	+
	33	+
	34	+
	35	+
	36	+### 4040 dual groove
	37	+
	38	+![](2025-02-26-19-36-59.png)
	39	+
	40	+![](2025-02-26-19-37-15.png)
	41	+
	42	+groove size 5.5 mm
	43	+
	44	+
	45	+
	46	+### 2040
	47	+
	48	+- version: 2024L, 2040V
	49	+
	50	+![](2025-02-19-14-33-26.png)
	51	+
	52	+## Accessories
	53	+
	54	+\| ALU Profile \| T-nut Type \| T-nut Size \| Screw Type \| Screw Size \| Common Lengths \|
	55	+\| ----------- \| ---------- \| ---------- \| ---------- \| ---------- \| ---------------------- \|
	56	+\| 1515 \| T-nut \| M5 \| Bolt \| M5 \| 10mm, 20mm, 30mm \|
	57	+\| 2020 \| T-nut \| M5 \| Bolt \| M5 \| 10mm, 20mm, 30mm \|
	58	+\| 4040 \| T-nut \| M6 \| Bolt \| M6 \| 10mm, 20mm, 30mm, 40mm \|
	59	+
	60	+
	61	+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.
	62	+
	63	+
	64	+
	65	+
	66	+
	67	+## APP
	68	+
	69	+![](2025-02-26-19-39-21.png)
	70	+
	71	+
	72	+
	73	+## ref
	74	+
	75	+- [[mechanics-dat]] - [[mechanics]]
	76	+
	77	+- [[Alu-Extrusion]]
...	...	\ No newline at end of file

...	...	@@ -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 [[screws-dat]] \| \|
	45	+\| washers \| \|
	46	+
	47	+
	48	+
	49	+## ref
	50	+
	51	+- [[alu-extrusion-dat]]
...	...	\ No newline at end of file

...	...	@@ -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	+

...	...	@@ -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

...	...	@@ -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

...	...	@@ -3,3 +3,4 @@
3	3
4	4	- [[Heat-Set-Insert-dat]]
5	5
	6	+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.
...	...	\ No newline at end of file

...	...	@@ -32,6 +32,18 @@
32	32	\| Common Example \| Hex bolt with nut on the other end \| Wood screw going into wood directly \|
33	33
34	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	+
35	47	## common used bolt
36	48
37	49	- hex head bolt