When I bought my first CNC router, I got almost everything wrong.

Too small a table for the work I wanted to do. Underpowered spindle that struggled with hardwoods. Software that was technically capable but practically unusable. Six months of frustration before I replaced it with something appropriate.

Here’s what I wish someone had told me before that first purchase.

Table Size: Bigger Usually Makes Sense

The first decision is cutting area. Common sizes for furniture workshop machines:

• 4’ x 4’ (1200 x 1200mm): Cabinet parts, small furniture pieces
• 4’ x 8’ (1200 x 2400mm): Full sheet processing, larger panels
• 5’ x 10’ (1500 x 3000mm): Oversized pieces, multiple part nesting

My recommendation: Unless space absolutely prohibits it, get at least 4’ x 8’. Sheet goods come in standard dimensions. A machine that can process a full sheet without repositioning dramatically expands what’s practical to produce.

The temptation is to save money with a smaller machine. You’ll regret it when every table top requires multiple setups.

Spindle Power

Spindle motors range from 1.5kW to 10kW+ in furniture-scale machines. Consider:

Material expectations:

• Softwoods, MDF, plywood: 2.2kW sufficient
• Hardwoods, solid timber: 3kW minimum recommended
• Heavy nesting production: 4kW+ for speed

Cooling method:

• Air-cooled: Simpler, louder, adequate for intermittent use
• Water-cooled: Quieter, better for sustained operation, requires maintenance

For a furniture workshop doing varied work including hardwoods, 3kW water-cooled represents a sensible balance.

Rigidity and Build Quality

This is where cheap machines show their limitations.

Signs of inadequate rigidity:

• Visible flex when pressing on gantry
• Inconsistent cut depths across table
• Difficulty maintaining tolerance on large pieces
• Excessive vibration during cutting

Proper machine construction matters more than spec sheet numbers. A well-built 2.2kW machine outperforms a flimsy 4kW machine in practice.

If possible, see machines operating before purchase. Cut test pieces in materials you’ll actually use. Measure results.

Motion System

Two main approaches:

Ball screws: More precise, better for detailed work, higher maintenance Rack and pinion: Faster, simpler, adequate precision for furniture work

For most furniture applications, quality rack and pinion systems provide appropriate precision (typically 0.1mm or better) at reasonable cost.

Avoid belt-drive systems for serious furniture work—they lack the rigidity for consistent results.

Software Considerations

The machine needs software for:

• Design and CAD work
• Toolpath generation (CAM)
• Machine control

Common combinations:

Professional approach:

• SolidWorks, Rhino, or Fusion 360 for design
• Vectric VCarve or Aspire for CAM
• Machine-specific control software

Budget approach:

• SketchUp (free) for basic design
• Free CAM software (Estlcam, F-Engrave)
• Basic control software included with machine

The learning curve for professional software is steep. Budget 2-3 months of evening practice before expecting production efficiency.

Some workflows benefit from furniture-specific software like Cabinet Vision or Mozaik. These are expensive but dramatically streamline cabinet production.

The Learning Curve Is Real

Honest timeline for a competent woodworker new to CNC:

Month 1-2: Basic operation, simple cuts, many mistakes Month 3-4: Comfortable with standard operations, starting to optimise Month 6+: Confident production work, tackling complex projects

During this period, expect:

• Broken bits (budget $200-500 for replacements)
• Wasted material (factor into project costing)
• Slower production than anticipated
• Frustration with software

Nobody posts their learning-curve failures on Instagram. The perfect cuts you see online took many attempts to achieve.

Dust Collection

CNC routing produces extraordinary quantities of dust and chips. Adequate extraction is not optional:

Minimum requirements:

• 4” (100mm) main extraction
• Machine-specific dust boot or shroud
• Industrial extraction unit (not a shop vac)
• Air filtration for fine particles

Running a CNC without proper extraction creates health hazards and maintenance problems. Chips interfere with limit switches, bearings, and linear guides.

Budget $1,500-3,000 for adequate extraction setup beyond the machine cost.

Realistic Budget

For a capable furniture workshop CNC setup:

Component	Budget Range
Machine (4’ x 8’, 3kW)	$8,000 - $25,000
Software licenses	$500 - $3,000
Tooling starter kit	$400 - $800
Dust extraction	$1,500 - $3,000
Installation/setup	$500 - $2,000
Training/learning materials	$200 - $500

Total: $11,100 - $34,300

Yes, cheaper machines exist. I’ve seen $3,000 “CNC routers” marketed at hobbyists. For furniture production, they create more frustration than value.

Where to Buy

Australian options include:

• Established industrial suppliers: Higher prices, better support, proven machines
• Direct from Chinese manufacturers: Lower prices, variable quality, limited support
• Used equipment: Potential value if you can assess condition

For a first machine, buying from a supplier who provides installation, training, and ongoing support often justifies premium pricing.

Before You Buy

Questions to answer first:

1. What specific products will you produce?
2. What materials, maximum dimensions?
3. What’s your realistic production volume?
4. How much space can you allocate (including extraction)?
5. Who will learn to operate and maintain the machine?
6. What’s your genuine budget, including all setup costs?

The answers shape which machine makes sense. A bespoke furniture maker doing occasional CNC work has different needs than a cabinet shop processing hundreds of components weekly.

Starting Point

If you’re genuinely uncertain, consider:

• Subcontracting CNC work initially (most cities have CNC services)
• Attending a training course before purchasing
• Visiting working shops to see machines in operation
• Starting with a modest machine and upgrading once you understand requirements

The best machine is one matched to your actual work. That’s hard to know before you’ve done the work. A considered approach beats an impulsive purchase.