How Much Does It Cost to Get Into Knifemaking?
A fully assembled, motor-and-VFD-equipped professional-grade grinder runs $2,040-$2,340 depending on chassis (Legacy Torus-2x72, Nova, or Nebula), noticeably below comparably equipped premium competitors like the TW-90 ($3,900-4,150) or Brodbeck's top packages (up to $3,407).
Serious knifemakers eventually ask the same question: what does it actually cost to build a professional-grade shop, not just a hobby setup? This breaks down real numbers for a fully assembled, motor-and-VFD-equipped grinder at three build levels, and shows how that stacks up against the well-known names in the premium 2×72 space.
What “Professional-Grade” Actually Requires
A serious daily-use grinder needs three things a basic hobby machine often skips: a rigid, vibration-resistant chassis, a variable-speed motor so you can actually control belt speed for different steels and operations (see our Belt Speed Calculator), and a belt tensioning system that holds up to daily use without drifting out of adjustment. That’s the bar a “professional setup” needs to clear.
Three Real Build Levels
Torus CNC’s current lineup covers three tiers of the same core promise: fully assembled, fully tested, ready to grind the day it arrives.
| Model | Chassis | Best for | Price + motor/VFD |
| Legacy Torus-2×72 | 6061 aluminum | The value pick many professional shops have run for years | $1,195 + $845 = $2,040 |
| Nova | Upsized 6061 aluminum, cross-braced | The current standard: lighter, corrosion-resistant, reinforced against flex | $1,395 + $845 = $2,240 |
| Nebula | Upsized 3/8″ steel | Maximum rigidity, mass, and vibration dampening for the heaviest daily use | $1,495 + $845 = $2,340 |
Every tier ships completely assembled and shop-tested, not a kit you weld or bolt together yourself. Every tier includes a true 90-degree tilt and a stainless steel ratchet-style belt tensioner, a feature usually reserved for the highest-end grinders on the market, since it holds consistent tension indefinitely instead of losing tension as a spring fatigues over time. The Nova and Nebula add a precision dual-axis tracking system on top of that, a level of belt-alignment control not found on most grinders at any price.
How That Compares
Two of the most respected names in premium 2×72 grinders are Wuertz Machine Works’ TW-90 and Brodbeck Ironworks. Both build genuinely excellent machines, and it’s worth knowing where the pricing actually lands:
- TW-90: $3,900-$4,150 fully assembled with a 2 HP motor and VFD included. Excellent machine, but roughly double the cost of a comparably equipped Nebula.
- Brodbeck: Packages range from about $1,485 (Basic) up to $3,407 (Mega, which includes a 2 HP motor and VFD). Worth noting: Brodbeck’s standard lead time is for kit-form grinders that require assembly, with fully painted and assembled units taking noticeably longer to ship.
A fully assembled, motor-equipped Torus setup lands meaningfully below both, without giving up the features (rigid construction, real tilt function, ratchet tensioning) that define the premium tier in the first place.
What Else to Budget For
The grinder is the biggest line item, but not the only one. Plan for abrasive belts (see individual steel grinding guides for recommendations), a heat-treat setup or a professional heat-treating service, basic hand tools, and safety equipment (full face shield, respirator, hearing protection). None of that is optional regardless of which grinder you choose.
Common Mistakes
- Comparing a bare grinder chassis price against a competitor’s fully motorized package price, an apples-to-oranges comparison that makes the chassis look cheaper than the real total cost.
- Buying a kit that requires welding or assembly without accounting for the time and tools that requires.
- Forgetting to budget for a VFD, then discovering how limiting a fixed belt speed is.