01
Bill of materials
Complete list of all individual parts with count, name and unique identifier. Ready for ERP as JSON or CSV.
Microservices · Assembly Decomposer
Assemblies decomposed into parts automatically.
The Assembly Decomposer takes a STEP assembly and returns a complete BOM — with count, dimensions, material properties and automatic distinction between purchased parts (screws, fasteners) and manufactured parts.
What the Assembly Decomposer returns
One STEP assembly in — a complete BOM out.
What would manually take hours runs via API in under 15 seconds.
02
Dimensions per part
Bounding box, volume, surface for every individual part — basis for individual cost calculation and material requirements.
03
Material properties
Material assignment per part, where stored in the STEP file. Part weight calculated via material density.
04
Buy vs. make
Automatic distinction: screws, nuts, bearings, standard parts marked as purchased. Manufactured parts go to the quote.
API example
One assembly in, the BOM out.
Request
POST /api/assembly-decomposer Authorization: Bearer YOUR_API_KEY Content-Type: multipart/form-data file: Machine_frame.step
Response
{
"assembly": "Machine_frame",
"parts": [
{
"name": "Base plate",
"qty": 1,
"type": "manufactured",
"material": "S235JR",
"bbox_mm": [500, 300, 12]
},
{
"name": "ISO 4014 M10x40",
"qty": 8,
"type": "purchased",
"supplier_class": "fastener"
}
]
} Example response — the full response includes volume, surface and additional fields per part.
Typical use cases
What companies use the Assembly Decomposer for.
A
ERP BOM creation
New assemblies go straight into ERP — as a structured BOM with every part. Manual creation drops out completely.
B
Procurement separate from order
Purchased parts (screws, bearings) go directly to procurement. Manufactured parts stay in the quote. Clean separation, automatic.
C
Quoting complex assemblies
Each individual part is quoted separately (material, machining, additional processes) and summed at assembly level — no more flat-rate prices.
See the Assembly Decomposer on your own assembly.
30-minute demo call — you show us a typical assembly, we run the Assembly Decomposer live and discuss integration and volume.