VMC Machining for Pattern Making: Our 5-Machine Advantage

What VMC Means in Pattern Manufacturing

A Vertical Machining Centre (VMC) is a CNC machine tool where the cutting spindle is oriented vertically, allowing the tool to move in X, Y, and Z axes to machine complex 3D profiles on a workpiece clamped on the machine table. In pattern making, VMC is the primary tool for producing accurate, complex pattern geometries from aluminium, resin, or steel.

Before VMC became standard in pattern shops, patterns were made by manual tracing, pantograph copy milling, or laborious hand filing and grinding. The accuracy achievable was ±0.05mm at best, and producing complex curved profiles was extremely time-consuming.

VMC changed everything. With CAM (Computer-Aided Manufacturing) software, a 3D CAD model is translated into machine instructions, and the VMC produces the pattern geometry with ±0.005mm accuracy — repeatably, on every part.

Our 5 VMC Machines + 1 Router

Super Innovation operates one of the strongest VMC fleets for pattern making in the Delhi NCR region:

Machine	Make	Table Size (mm)	Spindle Speed	Notes
---------	------	-----------------	---------------	-------
VMC 1	Kingston	1000×500×500	8,000 RPM	General patterns
VMC 2	Kaizen	1270×610×610	6,000 RPM	Medium patterns
VMC 3	Leadwell	1600×800×750	6,000 RPM	Large patterns
VMC 4	Electronica	2200×1100×900	6,000 RPM	Very large patterns
VMC 5	Jyoti	1000×500×500	10,000 RPM	High-speed finishing
Router	RK Router	2400×1200	18,000 RPM	MDF, resin patterns

The Electronica VMC with its 2200×1100×900mm table is our largest machine, capable of machining Sinto FBO match plates, large GDC mould halves, and shell core boxes for big castings in a single setup.

Why Machine Size Matters

In HPML pattern making, pattern size directly follows the mould box size of the machine. Large moulding machines like Sinto FBO and ARPA 900 use match plates up to 800×600mm. These large patterns cannot be produced on smaller VMCs — they require the table capacity of our Electronica.

For GDC mould making, large pump casings and gearbox bodies require mould halves of 600–800mm. A single-setup machining of these large mould halves is essential for accuracy — splitting into multiple setups introduces cumulative positioning errors.

Our 2200mm table capacity means we can handle virtually any pattern size produced in India's foundry industry.

Accuracy Specifications

Parameter	Specification
-----------	--------------
Positioning accuracy	±0.005mm
Repeatability	±0.003mm
Surface finish (finish pass)	Ra 1.6–3.2
Spindle speed range	6,000–18,000 RPM
Tool diameter range	3mm–100mm

These specifications are verified by Renishaw ballbar testing, maintained through regular calibration.

CAD/CAM Workflow: DNC Data Transfer

Our machining process follows a disciplined workflow:

CAD model received (3D file, or we convert from 2D drawing)

CAM programming: Our programmers use Mastercam/PowerMill to generate toolpaths — roughing, semi-finishing, finishing

Simulation: Toolpath simulation in CAM to check for gouges and collisions

DNC transfer: Programs transferred to machine via DNC (Direct Numerical Control) connection — eliminates manual data entry errors

First-off inspection: First-machined component is fully measured before proceeding

Production run: Balance of components machined

Final inspection: All pattern components verified against drawing tolerances

Types of Work We Handle

Complex 3D profiles: Curved surfaces, compound angles, bowl shapes — typical of brake discs, clutch housing patterns, and pump impeller moulds.

Multi-angle features: Features with draft angles, fillets, and chamfers that require simultaneous 3-axis or 4-axis machining.

Blind pockets and bosses: Deep pockets and thin walls in core boxes and GDC moulds.

Large flat surfaces: Match plates and pattern plates requiring flatness better than 0.05mm over 800mm.

Deep cavity moulds: GDC mould cavities up to 300mm deep, machined with long-reach tooling.

Turnaround Time Advantage for NCR Foundries

Being located in Faridabad's Shri Sai Industrial Area — 35km from Delhi, 45km from Gurgaon's auto belt — gives Super Innovation a logistics advantage over pattern suppliers in Pune or Coimbatore.

For urgent requirements, we offer:

Pattern trial conducted at client's foundry within 2–3 days of completion
Quick modification service if trial reveals corrections needed
Partial delivery of first pattern plate while second is still being machined

Our proximity means your pattern is delivered, trialled, and approved without the 3-day transit delays of outstation suppliers.