- Spindle upgrade
- 24V
- Fits most 3018 machines
Three parts for the three weak spots of a stock 3018: a 24V GS-775M spindle that turns twice as fast as the usual 775, a transparent dust shoe for it, and two aluminium T-track hold-downs.
Most 3018 kits leave the factory with a 775 motor that turns about 10,000 rpm at 24V, no dust collection and a set of flat plate clamps. The Upgraded Cuts kit answers all three at once. Each part fixes a different habit of the stock machine, which is why Genmitsu bundles them.
The logic is simple once a few jobs have gone wrong. A slow spindle forces a slow feed to keep chips small. A cloud of MDF dust hides the bit and packs the slot. A plate clamp that loosens lets the blank shift half a millimetre, and the second pass no longer lines up with the first.
For a stock 3018-PRO, 3018-PROVer or similar clone, the kit turns a first-week machine into one that cuts cleaner, faster and with the stock held still.
| Spec | Value |
|---|---|
| Kit contents | 1 GS-775M spindle motor, 1 CNC dust shoe, 2 T-Track Mini hold-down clamps |
| Spindle model | Genmitsu GS-775M (MR775) |
| Spindle speed | 20,000 rpm |
| Spindle supply | DC 24V |
| Spindle body | 775 can, 1.69 in (42 mm class) diameter |
| Spindle shaft | 5 mm |
| Spindle build | Double ball bearings, CW/CCW rotation, noise-suppression PCB fitted |
| Dust shoe material | Transparent ABS |
| Dust shoe fit | 42 mm spindle with two 4 mm screw holes |
| Vacuum port | 38 mm (1.5 in) outer, 32 mm (1.26 in) inner diameter |
| Brush | 40 mm nylon, planted, on a magnetic bottom cover |
| Dust shoe hardware | 2 × M4 × 8 screws, wrench, manual |
| Clamp material | 6061 aluminium alloy |
| Clamp size | 65.3 × 20 × 50 mm (L × W × H) |
| Clamp capacity | Stock up to 1.77 in (45 mm) thick |
| Machine fit | Most 3018 series routers; dust shoe named for 3018-PRO, PROVer, PROVer Mach3, MX3, 1810-PRO and 4040-PRO |
Spindle speed matters because of chip load: the thickness of material each cutting edge removes per turn. Feed rate equals rpm times flutes times chip load. Double the rpm and the same feed makes half-thickness chips, or the same chip thickness allows twice the feed.
On a 3018 the frame, not the motor, usually sets the ceiling. So the extra speed shows up mostly as a finer finish at the feeds the gantry already handles, plus a little more feed on light work. Worked examples for a 1/8-inch bit, as starting points to adjust after a scrap test:
| Material, bit | Chip load (mm) | Feed at 10,000 rpm | Feed at 20,000 rpm |
|---|---|---|---|
| MDF, 2-flute flat | 0.02–0.03 | 400–600 mm/min | 800–1,200 mm/min (frame-limited) |
| Cast acrylic, 1-flute | 0.03–0.05 | 300–500 mm/min | 600–1,000 mm/min |
| Plywood V-carve, 20° V-bit | light | 300–500 mm/min | same feed, cleaner edges |
Three habits keep the faster motor happy:
Engraving is where the gain is plainest. Fine V-bits with a 0.1 mm tip cut cleaner lines at higher rpm, which is the use Genmitsu names for this motor. The materials behind these numbers are covered in what a 3018 cuts.
The spindle swap is a quick job on most 3018 frames because the GS-775M keeps the 775 body. Loosen the holder, slide the old motor out, move the wiring across and clamp the new one at the same height. The dust shoe then goes on top of it in three magnetic pieces.
Two fitting details save frustration later:
The clamps need no tools. Slide them into the T-slots, set the pad on the stock edge and turn the knob until the blank no longer moves by hand.
The bundle fits best on a stock machine that has none of the three. Owners who already fitted clamps, or who plan a bigger spindle, may do better buying one part alone. The decision turns on the spindle diameter and the power supply.
| Your machine | Best buy |
|---|---|
| Stock 3018-PRO, PROVer or clone, 775 spindle, no shoe | This kit |
| Clamps already fitted, spindle still stock | GS-775M on its own |
| Faster spindle already, dust everywhere | 42 mm dust shoe |
| 52 mm 300–500W spindle | A 52 mm shoe; skip the 775 |
Check before ordering:
A 775 at 20,000 rpm remains a light motor. It will not turn a 3018 into an aluminium mill; that step needs a stiffer Z and a 52 mm spindle, set out in 3018 upgrades. For wood, acrylic and engraving, though, this box covers most of what the stock machine lacks.
The order of fitting matters less than the order of use. Clamp first, because a moving blank ruins any spindle's work; then add the shoe so the bit stays visible; then raise rpm and trim feeds from the MDF figures upward, one test square at a time.
On most 3018 frames, yes. It uses the same 775 motor body as the original spindle, about 42 mm across.
Possibly. A 20,000 rpm motor needs a high start-up current, and Genmitsu advises checking for the older brick; its 24V supply is rated for 8–10 A at start.
The port measures 38 mm outside and 32 mm inside, so a standard shop-vac hose or adapter in that size fits.
The T-Track Mini clamps accept stock up to 1.77 in (45 mm) thick.
No. The shoe and motor are for 42 mm 775 spindles; 52 mm machines need a different shoe.