Top 3018s
300 × 180 × 45 mm · 775 spindle · GRBL 1.1f

CNCTOPBAOS 3018-PRO-MAX CNC Router

The light, 775-powered side of the Pro Max name: a classic 3018 frame with a cased GRBL 1.1f board that has a port for everything, sold bare, with an SD-card offline controller, or with switches and a stop button too.

  • Working area300 × 180 × 45 mm
  • Spindle775, 120W, 10,000 rpm at 24V
  • ColletER11, 3.175 mm fitted, takes up to 7 mm
  • ControllerCased GRBL 1.1f board with fan
  • Laser support12V 3-pin PWM/TTL modules, 0.5–20W
  • VersionsBare, offline controller, or offline + switches and E-stop
Suits
  • Wood, acrylic, PVC and PCB projects on a small bench
  • Owners who plan to add a laser, probe and switches over time
  • Garages and sheds where the laptop stays indoors
Skip if
  • Brackets and pockets in aluminium: that is 500W territory
  • Thick blanks: 45 mm of Z limits stock height
  • Buyers expecting the 500W spindle some Pro Max machines carry
Get it here
Kit contents

Three ways to order the Pro-Max

A 120W 775 and a cased GRBL 1.1f board on the 3018-PRO-MAX frame

The CNCTOPBAOS 3018-PRO-MAX keeps the proven 3018 formula and spends its upgrades on the electronics. It moves 300 × 180 × 45 mm within a frame of 420 × 350 × 270 mm, a 775 motor on the carriage, and a GRBL 1.1f board that sits in its own case with a fan.

Changzhou Rattm Motor is named as the maker, the same factory behind the RATTMMOTOR kits. That shows in the numbers, which match RATTMMOTOR's 3018 builds almost everywhere except the motor figures.

  • Spindle: a 775 rated 120W on 12–36V, turning 10,000 rpm at 24V.
  • Collet: ER11 with a 3.175 mm (1/8-inch) collet fitted; other ER11 sizes up to 7 mm fit.
  • Steppers: Nema 17, 1.33A, 0.3 N·m of torque.
  • Power: a 24V adapter rated 5.6A.
  • Software: a 4GB USB drive with the GRBL software, manual and install notes; Windows XP through 10, and Linux.

The Pro-Max name can mislead. Other Pro Max machines, such as LUNYEE's, carry a 500W spindle and 80 mm of Z. This one is a 775 machine, closer in spirit to a well-equipped 3018-PRO.

Three ways to order. The bare kit runs from a computer over USB. The offline version adds a handheld SD-card controller. The third adds limit switches and an E-stop button to the offline kit.

G-code files can be .nc, .txt, .tape or .gcode, so output from most CAM programs runs without renaming. The 3018 Pro Max comparison puts this kit next to the 500W machines that share the name.

Measurements

The spec log

SpecValue
Model3018-PRO-MAX
BrandCNCTOPBAOS (made by Changzhou Rattm Motor)
Working area300 × 180 × 45 mm (11.8 × 7.1 × 1.8 in)
Frame size420 × 350 × 270 mm
Frame materialAluminium
Spindle775 DC motor, 120W, 12–36V
Spindle speed10,000 rpm at 24V
ColletER11 with 3.175 mm collet; 0–7 mm collets fit
Stepper motorsNema 17, 1.33A, 0.3 N·m (43 oz-in), 42 × 42 × 34 mm
ControllerGRBL 1.1f board in a casing, with fan and power switch
Board portsE-stop, probe, X/Y/Z limits, offline controller
Spindle driveSupports spindles up to 20,000 rpm
Laser support12V 3-pin PWM/TTL modules, 0.5–20W
Power24V, 5.6A adapter
Offline controllerSD card reader, manual XYZ jog, spindle on/off (on offline versions)
FilesG-code .nc, .txt, .tape, .gcode
ComputerUSB; Windows XP to 10, Linux
In the boxKit, English manual, 4GB USB drive with software and instructions

Birch ply trays and PCB prototypes on the Pro-Max's 775

A 10,000 rpm 775 and 45 mm of Z suit shallow, detailed work. CNCTOPBAOS lists plastic, wood, acrylic, PVC and PCB, plus copper and aluminium, and the frame handles the first five comfortably.

Plywood trays, coasters, signs and small boxes are the machine's natural jobs. So are copper-clad circuit boards, where a V-bit isolates traces a few hundredths of a millimetre deep and spindle power barely matters.

ProjectBitApproach
Birch ply tray1/8 in two-flute flatPocket in 0.5–1 mm steps, finish pass at full depth
Single-sided PCB20° V-bitProbe or level the board, cut 0.05–0.1 mm deep
Acrylic panelSingle-flute O-fluteShallow passes, air to clear chips
PVC foam sign1/8 in O-fluteDeeper passes, brisk feed
Brass tagV-bitEngrave only, very light depth

These are common 3018 starting points, not CNCTOPBAOS figures. A scrap test on each new material is still the first job.

  • Circuit boards: tape or clamp the blank flat, since a 0.1 mm warp is as deep as the cut.
  • Plywood: an MDF spoilboard under through-cuts keeps the bit off the aluminium table.
  • Stock height: blanks thicker than about 20–25 mm leave little Z travel for the bit.
Speed headroom. The board's spindle drive handles motors up to 20,000 rpm. A faster 775 is the upgrade that most improves acrylic and PCB edges on this kit.

Aluminium sits at the edge of what the frame does well. Thin sheet and engraved plates work; pockets in 6061 call for a stiffer 500W frame.

In the lineup

Where it lands among 3018 gear

3018 CNC machine models by type, September 2026. Highlighted: CNCTOPBAOS 3018-PRO-MAX CNC Router.

Probe, limit switches and a 20W laser on the Pro-Max board

The board is where this kit earns the Max in its name. CNCTOPBAOS gave it a casing, a fan, a power switch and a full set of ports, so the usual upgrades plug in without swapping controllers.

That matters because most 3018 owners add parts within the first months. A board with the ports already in place saves a controller swap later.

  • E-stop port: a stop button that halts motion, not just the spindle.
  • Probe port: a touch plate sets Z zero automatically in Candle or UGS.
  • X/Y/Z limit ports: switches for homing and hard limits; the third version includes them.
  • Offline controller port: the SD-card pendant that runs jobs without a computer.
  • Laser output: 12V three-pin modules with PWM or TTL control, from 0.5W to 20W.

The laser output turns the kit into a two-head machine. Swap the 775 for a diode module, switch GRBL into laser mode (setting 32 at 1), and the same frame engraves wood, leather and card.

  1. Fit the switches and set GRBL setting 22 to 1 to enable homing.
  2. Wire the probe, then run Candle's probe routine to test it with a bit and the plate.
  3. Add the laser, check its voltage is 12V, and switch to laser mode only while it is mounted.
Turn laser mode off again before refitting the spindle. With setting 32 on, GRBL treats the output as a laser and keeps moving through power changes, which is the wrong behaviour for a cutting tool.

The offline controller reads G-code from the SD card's root folder, jogs X, Y and Z to the starting point, and switches the spindle. The software entry covers the computer side, and the laser entry the diode options that fit this board's 12V output.

Swap-ins

Three other ways to go

Same maker, PRO badge1 CNCTOPBAOS 3018-PRO CNC Router
CNCTOPBAOS 3018-PRO CNC Router
CNCTOPBAOS 3018-PRO with the GRBL 1.1f board and an offline controller
  • 300 × 180 × 45 mm
  • 775 brushed spindle, ER11 collet
  • Offline controller: runs without a PC
Get it here

CNCTOPBAOS Pro-Max, its 3018-PRO sibling or a 500W LUNYEE

Three machines sit close to this kit. The CNCTOPBAOS 3018-PRO shares most of its specification, the RATTMMOTOR 3018-PRO MAX comes from the same factory, and the LUNYEE 3018 Pro Max carries the same name with a far heavier build.

Against the CNCTOPBAOS 3018-PRO, differences are small. Both run a 775, a GRBL 1.1f board with the same ports and an offline controller option, and both quote the same 300 × 180 × 45 mm envelope. The choice between them usually comes down to which offline controller each version ships with and which box includes the safety parts.

Against the LUNYEE, the gap is large. The LUNYEE pairs 500W with a metal frame and nearly twice the Z stroke, which opens up aluminium and thick hardwood, and it weighs far more on the bench. For wood, plastic and circuit boards, the lighter Pro-Max does the same jobs on a frame that is easier to lift and move.

MachineSpindleZ travelWhat stands out
CNCTOPBAOS 3018-PRO-MAX775, 10,000 rpm45 mmVersion with switches and E-stop in the box
CNCTOPBAOS 3018-PRO775, 10,000 rpm45 mmTouchscreen offline controller version
RATTMMOTOR 3018-PRO MAX775, 10,000 rpm45 mmSame maker, 20,000 rpm spindle support
LUNYEE 3018 Pro Max500W, 12,000 rpm80 mmAll-metal frame for soft metal
  • Pick this kit for wood, plastics and PCB, with ports ready for every common upgrade.
  • Pick the version with switches to skip sourcing limit switches and a stop button separately.
  • Pick the LUNYEE if aluminium brackets or thick hardwood are the plan from day one.

Before ordering, check the bench: the frame needs about 420 × 350 mm plus room for the table to travel. Decide whether the machine will live next to a computer; if not, the offline version is the one to order.

Bench notes

Setup questions

Does the CNCTOPBAOS 3018-PRO-MAX have a 500W spindle?

No. It uses a 120W 775 motor at 10,000 rpm on 24V. The 500W Pro Max machines come from other makers such as LUNYEE.

Which version includes limit switches and an E-stop?

The version sold with the offline controller plus limit switches and E-stop. The other two have the board ports but not the parts.

Can I add a laser?

Yes. The board supports 12V three-pin PWM or TTL laser modules from 0.5W to 20W.

What files does the offline controller run?

G-code files with .nc, .txt, .tape or .gcode extensions, placed in the SD card's root folder.