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Product Category
Interface ±0.01 · Flat ≤0.01 · Single Setup · 8+ Faces · MOQ 1
CFN / 001 — 010

5-Axis Single-Setup
Complex Frame Node Parts

Precision 5-axis machined complex frame node parts — high interface density, multi-direction load paths, all mating faces in one coordinate system. Interface accuracy ±0.01 mm, flatness ≤ 0.01 mm. The structural heart of your equipment frame: machined from a single datum, no error stacking, all interfaces CMM-verified relative to each other.

±0.01mm
Interface Accy.
≤0.01mm
Face Flatness
8+ Faces
Density
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PART DWG · CFN-001 ROBOT NODE · Al 7075 HA · 6 INTERFACES · ±0.01 ISO 9001 · 5-AXIS · CMM
6 Interface Faces
Phantom Extrusions
FRAME NODE · 6 INTERFACES · ISO VIEW Al 7075-T6 HA · 80 CUBE · 6 PORTS · ±0.01 IFC ±0.01 POS phantom extrusion INTERFACE ±0.01 · ≤0.01 FLAT I-1 I-2 I-3 I-4 I-5 I-6 A SINGLE-SETUP · SINGLE DATUM INTERFACE · COUNT 4 interfacesbasic node 6 interfaces ◀typical 8 interfacesdense 10+ split-pairmatched set MATERIAL Al 6061/7075 HA ◀robot · UAV 42CrMo4 / C45heavy industrial SUS304 / 316Lfood · clean Ti Grade 5aerospace FRAME · TYPE ROBOT ◀ MACH UAV AERO MATCHED NODE SETS SQUARE FRAME · NO SHIM DATUM · STRATEGY Single-setup ◀no error stacking Single datum originall interfaces CMM pair-wiseevery relation Lapping optionflat ≤0.005 Post-weld re-machinewelded frames SCALE 1:1 · MM
Robot · Machinery · Aero · Automation · Scientific
Applications
Al 6061/7075 HA · 42CrMo4 · SUS · Ti Gr5
Materials
48hr Quote · 8-Day Proto · MOQ 1
Service
±0.01mm
Interface Accuracy
all assembly faces
≤0.01mm
Face Flatness
mating surfaces
8+
Interface Faces
high density
8 Days
Fastest Delivery
prototype orders
Why It's Difficult

Frame Node Machining Challenges

Frame nodes carry loads from multiple structural members simultaneously. Every interface must be positionally accurate for the assembled frame to be square, rigid, and free of induced stress.

⬡
Interface Density
8+ interfaces on one part means 8+ opportunities for positional error to accumulate. All interfaces are machined from a single datum in one 5-axis setup — no accumulation.
⚡
Load Path Integrity
Each interface carries a different force and moment. Material distribution between interfaces must maintain structural integrity at every load combination — reviewed in DFM.
🔩
Assembly Compatibility
All mating structural members must assemble without shimming or forcing. Tolerances on all bolt patterns and face positions are chosen to ensure compatibility with standard extrusions, tubes, and brackets.
Our Work

Complex Frame Node Parts We've Made

Real projects — CMM verified.

Request Similar Part →
Robot Frame Node 6 InterfacesAl 7075 · Robot
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±0.01mm · Anodized · 20 pcs
Machine Frame Node Heavy42CrMo4 · Machine
Machine Frame Node — Heavy Duty
8 interfaces · Hardened · 10 pcs
Automation Frame NodeAl 6061 · Auto.
Automation Frame Node
6 interfaces · 30 pcs
Cleanroom Frame NodeSUS304 · Clean
Cleanroom Frame Node
Passivated · 15 pcs
Aerospace Frame NodeTi Gr5 · Aero
Aerospace Frame Node
Grade 5 · 5 pcs
Instrument Frame NodeAl 7075 · Instr.
Instrument Frame Node
µm-level · 8 pcs
Industrial Frame JunctionC45 · Industrial
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UAV Central Frame NodeAl 7075 · UAV
UAV Central Frame Node
Lightweight · 60 pcs
How It Works

From Drawing to Finished Part

Upload your 2D/3D file — receive DFM feedback, quote, and confirmed lead time within 48 hours.

01
Upload Drawing
STEP, DXF, PDF or sketch. 2D + 3D preferred.
02
DFM & Quote
Free DFM feedback — load-path, fixturing, material. Quote in 48 h.
03
5-Axis CNC & QC
5-axis CNC, CMM inspection, pair-wise interface report.
04
Ship Worldwide
DHL / FedEx / sea freight. Inspection report enclosed.
Reviews

Trusted by Engineers Worldwide

★★★★★
"The CMM report matched our incoming inspection perfectly. Every critical dimension was within spec on the first article. Lead time exactly as quoted."
AK
Alex K.
Mechanical Engineer · Germany
★★★★★
"HXC's DFM review caught a tolerance stack issue before we committed to production. The finished parts were perfect and batch consistency was excellent."
SL
Sophie L.
Design Engineer · France
★★★★★
"We've sourced over 30 part numbers from HXC across three years. Quality is consistent, lead times are reliable, and the engineering team is always responsive."
JT
James T.
Senior Buyer · UK
FAQ

Complex Frame Node Parts — FAQ

Common questions from engineers and procurement teams.

A complex frame node is a structural part where multiple structural members (tubes, extrusions, plates, brackets) converge — transmitting loads between all connected members. Unlike a simple elbow or T-junction, a complex node may have 4–10 interfaces on different planes and angular positions, each requiring precise alignment for the assembled frame to be geometrically accurate.
All interfaces are machined from a single datum in one 5-axis setup — the part is fixtured once, and all faces, bores, and features are machined in that setup using a single coordinate origin. CMM inspection verifies all interfaces against the same origin, reporting positional accuracy between every pair of interfaces.
Standard: ≤ 0.01 mm on all mating faces — sufficient for bolted frame joints where clamping force eliminates any small waviness. For joints requiring zero fretting (precision frames, robot skeletons): ≤ 0.005 mm with an optional lapping step.
Yes — HXC can machine Al 6061-T6 or structural steel frame nodes that are subsequently welded into larger fabricated frames. The node machining is completed before welding; weld-preparation chamfers and joint geometry are machined to specification. Post-weld stress relief and re-machining of critical interfaces is available.
HXC has machined frame nodes with up to 10 interfaces on a single part. Beyond 10, the part typically becomes large enough to justify splitting into two joined nodes — which HXC can machine as a matched pair with verified relative positions.
Al 6061/7075: robot skeletons, automation frames, UAV central nodes — lightweight, anodizable. 42CrMo4 or C45 steel: heavy industrial equipment frames. SUS304: food and cleanroom equipment. Ti Grade 5: aerospace and weight-critical.
Yes — for robot frames and precision equipment, HXC produces matched node sets where all interface positions are verified relative to each other, confirming the assembled frame will be square and accurate without shimming.
Prototype (custom fixturing, high-interface node): 8–12 days. Small batch: 12–18 days. Production: 16–24 days.
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Send Your Drawing.
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Every enquiry includes a DFM review — tolerance feasibility, material confirmation, and process approach confirmed before production starts. MOQ 1 piece.

24hr
Quote Response
MOQ 1
Prototypes OK
ISO
9001:2015
📐
DFM Review on Every Enquiry
Tolerance feasibility, fixturing strategy, and material confirmation. Specific, actionable feedback — not generic pushback.
🎯
First Article Inspection — Standard
FAI report on every new run. Material certs and surface treatment certs included with every shipment.
🔄
Same Process: Prototype to Production
Process plan from your prototype applies to production batches. No re-qualification when you scale.
⚙
3 / 4 / 5-Axis CNC + Turning
Complex structural parts, shafts, housings, and transmission components. Metals and engineering plastics.
ISO 9001:2015 3/4/5-Axis Milling CNC Turning CMM Inspection Global Delivery