Product Category
Asymmetric · 5-Axis · Custom Soft-Jaw Fixturing
ICB / 001 — 008
CNC Machined
Irregular Connecting Blocks
Custom irregular profile connecting blocks — asymmetric geometry, multiple interface planes, compound contours. 5-axis machining from solid bar or billet. Interface tolerance ±0.01 mm, profile tolerance ±0.05 mm, any metal or engineering plastic.
±0.01mm
Interface Tol.
±0.05mm
Profile Tol.
5-axis
Compound Cut
PART DWG · ICB-000 ASYMMETRIC NODE · Al 7075-T6
ISO 9001 · COMPOUND ANGLES
3 Non-Parallel Faces
Custom Soft-Jaw
CMM Profile Scan
Robot · UAV · Aero · Optical · Med
Use Cases
Al · 42CrMo4 · SUS · Ti · PEEK
Materials
48hr Quote · 6-Day Proto
Service
±0.01mm
Interface Tolerance
mating face accuracy
mating face accuracy
±0.05mm
Profile Tolerance
asymmetric contour
asymmetric contour
5-Axis
Complex contour
machined in one setup
machined in one setup
6 Days
Fastest Delivery
prototype orders
prototype orders
Why It's Difficult
Irregular Block Machining Challenges
Asymmetric profiles have no convenient flat datum — every setup requires custom fixturing. Interface relationships between non-parallel faces must be held through multiple operations.
⬟
Non-Standard Profile
No two flat faces are parallel. Custom soft-jaw fixturing is designed per part to provide repeatable datum references for every machining operation.
⊞
Multiple Interface Planes
Connecting blocks link two or more mating parts in different planes. All interface positions must be dimensionally consistent — verified by CMM against a unified coordinate system.
⟳
Prototype to Production Consistency
First-article profile and interface dimensions are locked into the CMM program. Every subsequent part in the batch is verified against the same program — guaranteeing dimensional consistency from prototype to production.
Our Work
Request Similar Part →
Irregular Connecting Blocks We've Made
Non-standard connecting blocks for robotics, UAV, and precision machine structures.
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 Review & Quote
Free DFM feedback + material, lead time, and cost — within 48 hours.
03
CNC Machining & QC
5-axis CNC, CMM inspection, full dimensional 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
Irregular Connecting Block — FAQ
Common questions from engineers and procurement teams — answered by our manufacturing team.
An irregular connecting block is a structural component with a non-symmetric, non-prismatic profile that connects two or more mating parts across different planes. Unlike a standard bracket or cube, its geometry is driven by the assembly envelope — shaped to clear obstacles, route cables, or provide multiple non-parallel mounting interfaces in the tightest possible space.
We design custom soft-jaw or tombstone fixtures from the part's CAD model before machining begins. The fixture is measured on the CMM to verify it provides the correct datum references. All functional faces are then machined in as few setups as possible — typically 1–2 — to minimise datum transfer error.
Interface (mating) face dimensions: ±0.01 mm. Profile tolerance on non-functional irregular surfaces: ±0.05 mm. Hole position on any face: ±0.01 mm. For precision instrument connecting blocks: ±0.005 mm on critical mating interfaces — discuss requirements with our engineers.
Yes — a dimensioned sketch (PDF or scanned drawing) with key interface dimensions, material, and quantity is sufficient for a rough quotation. For production orders, STEP or IGES 3D files are required. Our engineers will confirm interpretation before production.
A standard bracket has predictable geometry (angles are multiples of 90°, flat faces, standard profiles) that can be produced by bending or simple milling. An irregular connecting block has compound angles, asymmetric profiles, or multiple non-orthogonal interfaces that require 5-axis CNC machining from solid and custom fixturing.
Al 7075/6061: most common for robotics, UAV, and automation. 42CrMo4: for high-load drive system connecting blocks. SUS304/316L: food, medical, marine. Ti Grade 5: aerospace and weight-critical. PEEK / Delrin: cleanroom and chemically aggressive environments.
The first-article CMM program (measuring all critical interfaces and profile dimensions) is saved and re-run on every batch. This means every production part is verified against the same nominal geometry as the prototype — dimensional drift between batches is detected immediately.
Prototype (1–3 pcs, custom fixturing included): 7–10 days. Small batch (10–50 pcs): 10–16 days. Production (100+ pcs): 14–20 days. Fixturing design is amortised across the batch — no separate tooling fee.
Get a Quote
Send Your Drawing.
Get a Quote.
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