Twotrees TTC450 Ultra
#1 in MidsizeFull review
A good value step up from 3018 class machines for someone who wants a real spindle and an 18 in bed without spending $1,000.
Amazon $799 Twotrees $699$699
The Twotrees TTC450 Ultra is the better CNC router overall, rated 3.2 to 2.9. The Twotrees TTC450 Ultra leads on price. The Carbide 3D Shapeoko 5.1 Pro 2x2 wins on work area and warranty. The Twotrees TTC450 Ultra costs $2,281 less ($699 vs $2,980).
Carbide 3D Shapeoko 5.1 Pro 2x2
#5 in MidsizeFull review
For 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 $2,980$2,980
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Twotrees TTC450 Ultra for price ($699 vs $2,980).
- Choose the Carbide 3D Shapeoko 5.1 Pro 2x2 for work area (600 sq in (24.5 x 24.5 in) vs 328 sq in (18.1 x 18.1 in)) and warranty (1.5-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every midsize CNC router; a clear win is highlighted. How we rank explains each one.
| Factor weight | Twotrees TTC450 Ultra | Carbide 3D Shapeoko 5.1 Pro 2x2 |
|---|---|---|
| Overall rating | 3.2/5 | 2.9/5 |
| Price 25% | 81 $699 | 0 $2,980 |
| Work area 15% | 12 328 sq in (18.1 x 18.1 in) | 54 600 sq in (24.5 x 24.5 in) |
| Spindle 15% | 66 500 W spindle | 50 spindle power not published (neutral score used) |
| Motion 20% | 85 linear rails, screw or rack drive, limit switches | 85 linear rails, screw or rack drive, limit switches |
| Warranty 25% | 0 1-year warranty | 25 1.5-year warranty |
Specifications
| Twotrees TTC450 Ultra | Carbide 3D Shapeoko 5.1 Pro 2x2 | |
|---|---|---|
| Work area | ||
| Travel (X x Y x Z) | 18.1 x 18.1 x 3.9 in | 24.5 x 24.5 x 6.1 in |
| Area | 328 sq in | 600 sq in |
| Spindle | ||
| Spindle | 500 W spindle, ER11 collet | Carbide Compact Router (included) |
| Power | 500 W | - |
| Top speed | 12,000 rpm | 30,000 rpm |
| Motion and control | ||
| Frame | aluminum and stainless steel | custom extrusions on a rigid base frame |
| Linear rails | Yes | Yes |
| Drive | Lead screw | Ball screw |
| Limit switches | Yes | Yes |
| Controller | GRBL (LKS CNC V1.0 board) | Carbide Motion |
| Offline controller | Yes | No |
| Build | ||
| Weight | 41.9 lb | - |
| Warranty | 1 year | 1.5 years |
| Released | 2025-06 | 2025-11 |