— Tech Specs —

Click here for video footage of SheetCNC cutting a variety of materials including metals (new tab.)

SheetCNC is a very large 3-axis water-cooled CNC routing/milling machine which cuts full-size plywood, MDF, plastic and foam sheets.

SheetCNC Can Machine Really Big Stuff…

The full-sheet 8′ x 4′ machine has a working area of 1.25m x 2.47m, and offers 240mm of Z-travel. That’s more than big enough for 2.5D work on standard full 8’x4′ sheets of plywood, chipboard, laminates and MDF up to 100mm thick. The high-speed Z-axis also allows full 3D machining.

 …But SheetCNC Handles The Small Stuff Too

SheetCNC was designed from the outset to be used for the big jobs: furniture cut from inch-thick 8’x4′ sheets; 3D wall plaques carved from solid timber; self-assembly camper-van kits sliced out of laminate boards.

But every big job contains small details – fastener holes, engraved labels, mortise-and-tenon joints – all of which must be cut with unerring accuracy. So SheetCNC must perform all its work with great precision. To demonstrate just how accurate SheetCNC is, we asked it to make a tiny PCB using a 0.2mm dia cutter.

New: Our Half-Sheet 4′ x 4′ SheetCNC for the Smaller Shed

Our new half-sheet 4′ x 4′ machine has identical capabilities but with a reduced working length of 1265mm (4’1.8″). It requires a floor space of just 1.65m x 1.65m. There’s clearance for a full board to overhang either end and the working length allows index-pegs to be machined at the half-way mark of the board. These features mean that parts over 4′ long can be cut in two operations, if required.

SheetCNC is Quick

With rapids of 18000mm/minute and typical cutting speeds of 3000 to 5000mm/minute SheetCNC gets the job done fast. The 2.2kW variable-speed spindle has plenty of power to deal with aggressive cutting in hardwood ply or MDF.

SheetCNC is Hackable

Here at SheetCNC.co.uk we love creative thinking and new ideas, so we positively welcome hackers and modders. Fancy giving your SheetCNC more Z clearance? Easy: just machine the necessary parts and bolt them on. Need a wider bed? Want a fourth or even a fifth axis? No problem: everything on SheetCNC simply bolts together so it’s easy to experiment with hacking the design. And there’s no harm in trying an experimental hack: if your mod doesn’t work out then simply bolt SheetCNC back together the way it was, and go back to the drawing board.

Dust Extraction as Standard

SheetCNC has a dust extraction nozzle built-in to the head, massively reducing the nuisance of dust in the workshop. The new Tornado head is designed to vacuum up the small, fine particles while leaving the larger chippings on the bed.

Invent. Create. Improve.

Having SheetCNC in your shed means that a project can be designed, cut, tested, improved, and redesigned over and over until it is perfected. So ‘back to the drawing board’ no longer means tearing up your whole project and starting from scratch. Instead, each iteration of a project made on SheetCNC builds on the previous iteration of the project.

Installing SheetCNC frees the maker’s mind to focus on how their project is going to work rather than how it is going to be made.

Produce and Sell

When your project is complete and perfected, why stop there? SheetCNC can re-create the same project over and over and over, for minimal effort. Which means that your fun projects can become sale-able products.

Machine Specs
  • Working volume – full-sheet: 1250mm x 2470mm x 120mm (4’1.2″ x 8’1.2″ x 4.7″) with 240mm (9.5″) of Z-travel.
  • Working volume – half-sheet: 1250mm x 1268mm x 120mm (4’1.2″ x 4’1.8″ x 4.7″) with 240mm (9.5″) of Z-travel
  • Rapids: up to 18000mm/min.
  • Typical cutting speeds in hardwood board using a budget 6mm carbide 1-flute: 2000mm/min to 6000mm/min at 3mm to 10mm depth-per-pass.
  • Acceleration: 3000mm/min feedrate is reached from standstill in 0.16 seconds after 4mm of travel.
  • Water-cooled 2.2kW spindle: 1260rpm to 24000rpm. (Spindle not supplied).
  • Maximum workpiece weight/load on the bed: 100kg.
  • Controller theoretical resolution: typically 0.01mm to 0.02mm depending on controller setup. (Controller not supplied.)
  • Typical real-world repeatability: better than 0.15mm.
  • Kit structure: 25mm 17-ply frame and table / steel rails and reinforcing / 25mm MDF components and separators / ball-race runners.
  • Motors: 425oz.in X/Y.
  • See also: FAQs for more technical details.
Chordal Error and Backlash

We’re constantly asked about these. See the videos on the FAQ page to understand why they’re really not an issue.