Technical documentation for analyzing the PDF/technical drawing
Below you will find an overview and a detailed explanation of the JSON data structure extracted from a technical drawing. The JSON data structure contains dimensional values, tolerances, drawing metadata, and additional manufacturing details.
Overview of the JSON Structure
1. Component Dimensions
The bounding_box object contains the overall dimensions of the component:
- height: Height (e.g.,
40mm). - length: Length (e.g.,
50mm). - width: Width (e.g.,
25mm).
2. Countersinks
The countersinks entry describes countersinks (chamfered holes):
- value: Diameter of the countersink (e.g., ⌀
6mm). - quantity: Number of countersinks with this specification.
- lower_tolerance and upper_tolerance: Tolerance limits which may be
nullif not provided in the technical drawing.
3. Deburring
The boolean value deburring indicates whether the component needs deburring (removal of sharp edges).
4. Dimensions
The dimension entry contains detailed measurement data for various features of the component:
- value: The nominal value.
- quantity: The number of occurrences of the nominal value.
- lower_tolerance and upper_tolerance: The lower and upper limits of the measurement.
- tolerance_bandwidth: The tolerance range.
5. Information Block
The info_block object contains metadata for the drawing:
- drawing_name: Name of the drawing (e.g.,
Halter XX43). - drawing_number: Unique identifier of the drawing (e.g.,
E212-6372). - iso_norm and iso_standard: Applicable ISO standards for the drawing. Typically, the categories for DIN ISO 2768 are provided here.
- material: Material specification (e.g.,
EN AW 5083 [AlMg4.5Mn0.7]).
6. Laser Marking
The boolean value laser_marking indicates whether laser marking has been applied to the component.
7. Number of Countersinks and Threads
- num_of_countersinks: Total number of countersinks (e.g.,
4). - num_of_threads: Total number of threaded features (e.g.,
2).
8. Radius
The radius entry contains information about the radii present in the component.
9. Surface Treatment
The surface_treatment entry contains information on surface finishing or treatment processes. In this response, it is empty.
10. Thickness
thickness indicates the thickness of the component (e.g., for a sheet metal component) (e.g., 8.4).
11. Threads
The threads entry contains information on threaded features of the component:
- thread_size: The thread size (e.g.,
M5). - quantity: The number of threads of this type.
- pitch: The distance between thread crests (can be
nullif not provided).
JSON Response Preview
{
"bounding_box": {
"height": 40,
"length": 50,
"width": 25
},
"countersinks": [
{
"lower_tolerance": null,
"quantity": 2,
"upper_tolerance": null,
"value": 5
},
{
"lower_tolerance": null,
"quantity": 2,
"upper_tolerance": null,
"value": 6
}
],
"deburring": false,
"dimension": [
{
"lower_tolerance": 4.6,
"quantity": 2,
"tolerance_bandwidth": 0.2,
"upper_tolerance": 4.8,
"value": 4.7
},
{
"lower_tolerance": 5.3,
"quantity": 1,
"tolerance_bandwidth": 0.2,
"upper_tolerance": 5.5,
"value": 5.4
},
{
"lower_tolerance": 9.3,
"quantity": 1,
"tolerance_bandwidth": 0.4,
"upper_tolerance": 9.7,
"value": 9.5
},
{
"lower_tolerance": 10.8,
"quantity": 1,
"tolerance_bandwidth": 0.4,
"upper_tolerance": 11.2,
"value": 11
},
{
"lower_tolerance": 15.8,
"quantity": 1,
"tolerance_bandwidth": 0.4,
"upper_tolerance": 16.2,
"value": 16
},
{
"lower_tolerance": 17.8,
"quantity": 1,
"tolerance_bandwidth": 0.4,
"upper_tolerance": 18.2,
"value": 18
},
{
"lower_tolerance": 20.3,
"quantity": 1,
"tolerance_bandwidth": 0.4,
"upper_tolerance": 20.7,
"value": 20.5
},
{
"lower_tolerance": 23,
"quantity": 1,
"tolerance_bandwidth": 0.1,
"upper_tolerance": 23.1,
"value": 23.1
},
{
"lower_tolerance": 24.8,
"quantity": 1,
"tolerance_bandwidth": 0.4,
"upper_tolerance": 25.2,
"value": 25
},
{
"lower_tolerance": 28.8,
"quantity": 1,
"tolerance_bandwidth": 0.4,
"upper_tolerance": 29.2,
"value": 29
},
{
"lower_tolerance": 29.4,
"quantity": 1,
"tolerance_bandwidth": 0.4,
"upper_tolerance": 29.8,
"value": 29.6
},
{
"lower_tolerance": 39.7,
"quantity": 1,
"tolerance_bandwidth": 0.6,
"upper_tolerance": 40.3,
"value": 40
},
{
"lower_tolerance": 49.7,
"quantity": 1,
"tolerance_bandwidth": 0.6,
"upper_tolerance": 50.3,
"value": 50
}
],
"info_block": {
"drawing_name": "Halter XX43",
"drawing_number": "E212-6372",
"iso_norm": "ISO 2768-mK",
"iso_standard": "m",
"material": "EN AW 5083 [AlMg4.5Mn0.7]"
},
"laser_marking": false,
"num_of_countersinks": 4,
"num_of_threads": 2,
"radius": [],
"surface_treatment": [],
"thickness": 8.4,
"threads": [
{
"lower_tolerance": null,
"pitch": null,
"quantity": 2,
"thread_size": "M5",
"upper_tolerance": null
}
]
}
Technical documentation for the analysis of STEP components
This documentation describes the JSON data structure provided by the STEP-Reader, a microservice for analyzing STEP files. The JSON data structure contains geometric data, processing information, and an image preview of the component.
Overview of the JSON Structure
1. Number of Holes
The entry number_of_holes indicates the total number of holes detected in the component.
- Example value:
10
2. Diameters of Holes
The entry diameters_of_holes lists the diameters (in millimeters) of the individual holes.
- Example values:
[3.3, 3.3, 2.7, 2.7, 5, 5, 5, 5, 6, 6]
3. Bounding Box
The bbox object contains the dimensions of the component's minimum bounding box:
- l: Length (e.g.,
51.8333mm) - w: Width (e.g.,
40mm) - h: Height (e.g.,
23.6631mm)
4. Volume
The entry volume indicates the calculated volume of the component, given in cubic millimeters.
- Example value:
24027.7384mm³
5. Assembly
The boolean entry is_assembly indicates whether the component is an assembly (true) or an individual part (false).
- Example value:
false
6. Outer Diameters
The entry outer_diameters contains optional information on outer diameters. Outer diameters are only provided for round components. For milled components (from a cuboid), no outer diameter is given.
- Example value:
130mm
7. Processing Technology
The entry machine_type describes the type of processing technology, e.g., SheetMetal for sheet metal components.
- Example value:
SheetMetal
8. Turning and Milling Features
The entries turning_features and milling_features indicate how many features for turning and milling processes were detected.
turning_features:0milling_features:0
9. Surface Area
The entry surface specifies the surface area of the component in square millimeters.
- Example value:
8119.2504mm²
10. Maximum Cutout Area
The entry maximum_cutout_area describes the largest detected cutout area, given in square millimeters. This value can be used, for example, to assess whether a component is suitable for powder coating and to check if it can be "hung" in a powder coating machine.
- Example value:
28.27433388230814mm²
11. Preview
The entry preview contains a Base64-encoded image preview of the analyzed component. This image can be used in web applications for visualization.
JSON Response Preview
{
"number_of_holes": 10,
"diameters_of_holes": [
3.3,
3.3,
2.7,
2.7,
5,
5,
5,
5,
6,
6
],
"bbox": {
"l": 51.8333,
"w": 40,
"h": 23.6631
},
"volume": 24027.7384,
"is_assembly": false,
"outer_diameters": [],
"machine_type": "SheetMetal",
"turning_features": 0,
"milling_features": 0,
"surface": 8119.2504,
"maximum_cutout_area": 28.27433388230814,
"preview": 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- 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