Last Updated: March 2026
How Much Does CNC Machining Cost in Australia? (2026 Guide)
A simple aluminium prototype part typically costs $240–$900 AUD at Rapid Manufacturing. A moderately complex part with multiple setups runs $900–$2,400. Complex 5-axis parts or those requiring precision tolerances (±0.01mm) can range from $2,400–$9,000+. Production runs reduce per-unit cost significantly — a part that costs $900 as a single prototype might cost $120/unit at 100 parts.
These are indicative ranges. The best way to get an accurate price is to upload your STEP file for a free quote — Rapid Manufacturing provides pricing within 2 business days.
What Affects CNC Machining Price?
Six factors drive the majority of your CNC machining cost:
Number of setups, tool changes, and machining operations required. A part that can be done in one setup is much cheaper than one requiring three repositionings.
Aluminium machines 5–10x faster than stainless steel or titanium. Harder materials wear tools faster and require slower cutting speeds, both adding to machining time and cost.
Standard tolerances (±0.05mm) add little cost. Precision tolerances (±0.01mm) require additional inspection passes, slower feeds, and often CMM verification — all adding cost.
As-machined (Ra 1.6µm) is lowest cost. Post-processes like anodising, powder coating, or electroless nickel add $20–$150+ per part depending on size and process.
Setup, programming, and fixturing are fixed costs. The more parts you order, the lower the per-unit cost. Quantity discounts are often substantial from 10 parts onward.
Standard lead time (7–14 days) is most economical. Rush orders (3–5 days) typically carry a 20–50% premium depending on supplier capacity.
Typical Price Ranges by Part Type
All prices in AUD, indicative only. Actual quotes depend on specific geometry, tolerances, and finishing requirements.
| Part Type | Qty: 1 | Qty: 10 | Qty: 100 |
|---|---|---|---|
| Simple aluminium bracket (3-axis) | $240–$750 | $150–$360 | $75–$180 |
| Moderately complex housing (aluminium, 2 setups) | $900–$2,100 | $450–$1,050 | $180–$450 |
| Complex 5-axis aerospace part | $2,400–$9,000 | $1,200–$4,500 | $450–$1,800 |
| Stainless steel turned part (shaft/bushing) | $360–$1,200 | $180–$600 | $75–$240 |
| Titanium structural component | $1,500–$7,500 | $750–$3,600 | $300–$1,500 |
| Delrin/PEEK plastic part | $240–$1,050 | $150–$540 | $60–$210 |
How to Reduce Your CNC Machining Costs
These design modifications can meaningfully reduce your quote:
- →Use standard tolerances where possible
Only specify tight tolerances (±0.01–0.02mm) on dimensions that are functionally critical. Applying precision tolerances everywhere increases cost with no functional benefit.
- →Increase internal corner radii
Small internal radii (e.g., R0.5mm) require small, slow-cutting tools. Increasing to R3mm or R6mm allows larger, faster tools and reduces machining time.
- →Design for 3-axis where possible
Avoid undercuts and compound angles that require 5-axis machining unless your geometry genuinely demands it.
- →Avoid deep, narrow pockets
Pockets deeper than 3–4× their width are difficult to machine. Reduce depth or increase width where geometry allows.
- →Choose aluminium when suitable
If your application allows it, 6061-T6 aluminium machines faster and cheaper than any steel or titanium.
- →Order at production volumes early
If you know you'll need 100 parts eventually, ordering 25–50 in the first run is often more economical than ordering 5 now and 95 later.
Getting an Accurate Quote from Rapid Manufacturing
The fastest way to get accurate pricing is to upload your STEP file via our quote form. Include a PDF drawing if you have specific tolerances or GD&T callouts. Rapid Manufacturing will review your design, provide free DFM feedback, and return pricing within 2 business days.
If you don't yet have a 3D file, contact us with a sketch or description and we can provide a budgetary estimate.
Get Your Parts Priced
Upload a STEP file and receive a detailed quote within 2 business days. Free DFM analysis with every submission.
Request a QuoteFrequently Asked Questions
How much does a CNC machined prototype cost in Australia?
A simple aluminium prototype part (e.g., a bracket or plate) typically costs $240–$900 AUD depending on size and complexity. A moderately complex part with multiple setups might be $900–$2,400. Complex 5-axis parts or those requiring tight tolerances can range from $2,400–$9,000+.
Why is CNC machining so expensive for low quantities?
CNC machining cost is dominated by setup time and programming, not material cost. When you order 1 part, you pay 100% of the setup. When you order 100 parts, that setup cost is spread across all 100 parts, dramatically reducing the per-unit price. For low quantities, design simplification is the most effective cost-reduction strategy.
What is the cheapest material to CNC machine?
Aluminium 6061-T6 is typically the most cost-effective material for CNC machining. It machines quickly (reducing machining time), is relatively inexpensive, and has excellent mechanical properties for most structural applications. Stainless steel and titanium are significantly more expensive to machine due to slower cutting speeds and higher tool wear.
How can I reduce my CNC machining quote?
The most effective cost-reduction strategies are: (1) Avoid unnecessarily tight tolerances — only call out precision tolerances where functionally required. (2) Design for 3-axis machining where possible — 5-axis adds cost. (3) Increase internal corner radii — small radii require smaller, slower tools. (4) Avoid deep, narrow pockets. (5) Order higher quantities — per-part cost drops significantly with volume.
Does Rapid Manufacturing offer DFM advice to reduce costs?
Yes. Every quote from Rapid Manufacturing includes a free DFM (Design for Manufacturability) analysis. Our engineers flag cost drivers in your design and suggest modifications that can meaningfully reduce your quote — without compromising function.
How does production volume affect CNC machining price?
Volume has a large impact. A part that costs $500 as a single prototype might cost $80/unit at a quantity of 50, and $30/unit at 500 parts. The reduction comes from amortising setup, programming, and fixturing costs across more parts, and from optimising cutting parameters for batch production.