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  4. Backward Centrifugal Fan | 3D Engineering Design File
📐 2D Technical Drawings🤖 AI Generated

Backward Centrifugal Fan | 3D Engineering Design File 2D Technical Drawing Set

8
Drawing sheets
8
Views analysed
3
Export formats
2
Section cuts
1st Angle
Projection type
25 Aug 2026
Generated date
STEP
Source CAD format
Backward Centrifugal Fan | 3D Engineering Design File
Source 3D model
MPreview · 2D Drawing Sheets
1 / 7
⚠Verify critical dimensions against the source CAD model before using these drawings for manufacturing or production release. Download the FCStd file where available for the most accurate editable source.
Sheet 1
Sheet 1
Download all drawing sheets
SVG7 files
DXF7 files
🧊Open source 3D CAD model→
ℹ️

These are 2D engineering drawings derived from the 3D CAD geometry. Verify critical dimensions against the source model before manufacturing.

🤖

Views, section cuts, and detail areas were selected by AI based on analysis of 6 rendered views of the 3D model.

AI Drawing Analysis

What the AI Decided & Why

The cards below explain how the generated drawing outputs and assets connect to the final technical sheets.

Sheet 1

Orthographic

This sheet includes 112 geometry edges from the CAD projection pipeline.

Sheet 2

Orthographic

This sheet includes 107 geometry edges from the CAD projection pipeline.

Sheet 3

Orthographic

This sheet includes 114 geometry edges from the CAD projection pipeline.

Sheet 5

Orthographic

This sheet includes 123 geometry edges from the CAD projection pipeline.

Sheet 7

Orthographic

This sheet includes 106 geometry edges from the CAD projection pipeline.

Sheet 8

Orthographic

This sheet includes 108 geometry edges from the CAD projection pipeline.

Sheet 9

Orthographic

This sheet includes 107 geometry edges from the CAD projection pipeline.

Sheet 5section_a · Section5
sheet_num: 5 · edges: 123

Sheet 5. Geometry is derived from the 3D model projection for this drawing set.

  • 123 resolved edges in sheet geometry
  • See technical_drawing_simple.pdf, sheet_N.pdf, and svg/ for full graphical context
  • Verify critical dimensions against the source CAD before manufacturing
Detail Cdetail_c · base_view: Front
anchor: (646.88, 714.53, -325.46) · radius: 20

Magnifies the bolt pattern around the impeller hub for precise installation instructions.

  • Detail-view anchor selected by the AI planning stage
  • Use with sheet PDF/SVG for local feature inspection
  • Validate critical dimensions against source CAD before release

Downloads

Download Individual Sheets

Each sheet available in PDF, SVG, and DXF. Click a format badge to download.

Sheet 1
Sheet 2
Sheet 3
Sheet 5
Sheet 7
Sheet 8
Sheet 9

Drawing report

Drawing details & review

Cover summary and review report for this versioned drawing set.

TECHNICAL DRAWING

680c953111a13a42a587d5aa

Backward Centrifugal Fan Assembly

7
sheets
4
control frames
8
dimensions not drawn
Sheet index
SheetViewScaleContent
1Assembly - Front View0.48standard_view
2Assembly - Top View0.25standard_view
3Assembly - Right View0.48standard_view
4Assembly - Isometric View0.25standard_view
5Section A-A0.48section_view
6Section B-B0.25section_view
7Detail C2.0detail_view

Generated automatically and intended for review before use. A companion review report lists what needs checking.

DRAWING REVIEW REPORT

680c953111a13a42a587d5aa

This drawing is generated automatically and is a first draft. The items below need a human decision.

Summary
37
dimensions drawn
8
selected, not drawn
4
control frames
1
assumed tolerances
Tolerances to verify
CharacteristicTolDatumsConfidenceReason
profile_of_a_surface0.8A | Cmedium2059 face(s) have no analytic form — profile is the only control that applies to a sculpted surface
Dimensions not drawn
SheetTypeValueDescriptionReason
1DistanceY912.7hole pitch 912.7mm (2 x Ø76.6, from model)outside page band (tried 16 position(s))
1Radius8393.4R8393.4mmoutside page band (tried 10 position(s))
1Radius8395.2R8395.2mmoutside page band (tried 10 position(s))
2DistanceY54.0hole pitch 54.0mm (2 x Ø1.5, from model)outside page band (tried 16 position(s))
2Radius54112.1R54112.1mmoutside page band (tried 10 position(s))
7Radius0.52x R0.5mmoutside page band (tried 20 position(s))
7Radius3.54x R3.5mmoutside page band (tried 20 position(s))
7Radius3.74x R3.7mmoutside page band (tried 20 position(s))
Tolerance schedule
CharacteristicTolZoneDatumsConfidence
flatness0.4high
circularity0.2high
total_runout0.2Bhigh
profile_of_a_surface0.8A | Cmedium
Dimension schedule

All 37 dimension(s) drawn.

#SheetTypeValueDescription
11Diameter12.24x Ø12.2mm
21Diameter30.04x Ø30.0mm
31Radius11.28x R11.2mm
42Diameter1.52x Ø1.5mm
52Radius7.6R7.6mm
62Radius10.02x R10.0mm
72Radius15.02x R15.0mm
82Radius30.02x R30.0mm
92Radius48.02x R48.0mm
102Radius98.02x R98.0mm
113Diameter14.68x Ø14.6mm
123Diameter20.88x Ø20.8mm
133Diameter23.48x Ø23.4mm
143Distance720.1bolt circle Ø720.1mm (8 x Ø14.6 holes)
153Radius2.5R2.5mm
163Radius10.02x R10.0mm
173Radius40.07x R40.0mm
183DistanceX720.1hole pattern width 720.1mm (8 x Ø14.6, from model)
193DistanceY720.1hole pattern height 720.1mm (8 x Ø14.6, from model)
205DistanceX1698.0overall width 1698.0mm
215DistanceY1222.7overall height 1222.7mm
225Diameter752.4Ø752.4mm
235Diameter758.4Ø758.4mm
245Distance562.8bolt circle Ø562.8mm (4 x Ø50 holes)
255DistanceX175.0hole pattern width 175.0mm (4 x Ø30, from model)
265DistanceY371.6hole pattern height 371.6mm (4 x Ø50, from model)
275DistanceX720.1hole pattern width 720.1mm (8 x Ø14.6, from model)
285DistanceY720.1hole pattern height 720.1mm (8 x Ø14.6, from model)
298Diameter9.53x Ø9.5mm
308Diameter30.0Ø30.0mm
318DistanceY55.3hole pitch 55.3mm (vertical, Ø9.5)
328Radius18.0R18.0mm
338Radius27.62x R27.6mm
348Radius28.65x R28.6mm
359Radius3.88x R3.8mm
369Radius4.53x R4.5mm
379Radius6.013x R6.0mm

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AI Transparency

How these drawings were generated

These drawings were generated from the source 3D CAD geometry. The system analysed the model, selected relevant views, planned section cuts and generated drawing sheets in PDF, SVG and DXF formats.

These are 2D engineering drawings, not 3D files. Dimensions are extracted from the 3D geometry and should be verified against the source model before use in manufacturing.

Run Metadata

7
Views analysed
7
Sheets generated
1
Section cuts
2
Export formats
25 Aug 2026
Generated date

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Related resources

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