A first CNC for signs and small woodworking projects from a maker with a large accessory range. Add a router to the price.
Onefinity $995
A budget machine with a large bed for engraving signs and light cutting in wood and plastic. Plan on the 500 W spindle upgrade for harder materials.
- 18.1 x 18.1 x 3.1 inWork area
- 80 WSpindle
- Lead screwDrive
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- An 18 in square work area for about $500
- Runs jobs from the touchscreen without a computer attached
- Limit switches on every axis for repeatable homing
- Ports for a laser, 4th axis and 500 W spindle make later upgrades simple
- The stock 80 W spindle and 800 mm/min top speed make cutting slow
- Only 3.1 in of Z travel
- Twotrees lists linear rails only on the pricier Ultra, so this one gives up some rigidity
The Twotrees TTC450 family
Every Twotrees TTC450 model we rank, smallest first. Ratings compare each against its own size.
| Model | Work area | Rating | Price |
|---|---|---|---|
| Twotrees TTC450 Pro (this one) | 18.1 x 18.1 x 3.1 in | 2.8/5 | $499 |
| Twotrees TTC450 Ultra | 18.1 x 18.1 x 3.9 in | 3.2/5 | $699 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | TTC450 Pro |
|---|---|
| Work area | |
| Travel (X x Y x Z) | 18.1 x 18.1 x 3.1 in |
| Area | 328 sq in |
| Spindle | |
| Spindle | 775 brushed DC, ER11 collet |
| Power | 80 W |
| Top speed | 8,000 rpm |
| Motion and control | |
| Frame | aluminum and stainless steel |
| Drive | Lead screw |
| Closed-loop steppers | No |
| Limit switches | Yes |
| Controller | GRBL |
| Offline controller | Yes |
| Build | |
| Weight | 34.1 lb |
| Warranty | 1 year |
| Released | 2024-06 |
Alternatives in this size
A rigid benchtop machine for someone who wants to mill aluminum and hardwood in a 17 in square. Add a router or spindle to the price.
Amazon $1,399For a buyer with limited space who wants a rigid rail and ballscrew machine with US support. Larger beds cost less per square inch elsewhere.
Carbide 3D $2,980Compare
Compare the Twotrees TTC450 Pro with any other CNC router →
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