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Y extension · X knob · most 3018 Pro frames

Daedalus 3018 X/Y Upgrade Kit

A Y-axis stretch for 3018 frames built on 10 mm rods and 8 mm T8 screws: the Y length grows from 290 to 450 mm for a 300 × 320 mm cutting stroke, and X gets a hand knob.

  • Y length290 mm to 450 mm
  • Actual stroke300 × 320 mm
  • Movement area320 × 370 mm
  • Frame needsØ8 mm T8 screw, Ø10 mm rails, flat end plates
  • X axisKnob upgrade, not extended
  • KitsKnob kit or knob + 390 mm X screw + work panel
Suits
  • A non-Genmitsu 3018 Pro or Pro Max class frame with 10 mm rods
  • Long boards and plaques on a 3018
  • Owners who want to turn X by hand for setup
Skip if
  • Frames with 12 mm rods, such as LUNYEE's 500W Pro Max
  • More X width: X stroke stays at 300 mm
  • Anyone who wants a no-rewire upgrade
Get it here
Kit contents

Knob kit or work-panel kit

Serving trays and long plaques on a Daedalus-stretched 3018

The Daedalus 3018 upgrade kit is a Y-axis stretch for 3018 frames from makers other than Genmitsu. It takes the Y axis from 290 mm to 450 mm long, which Daedalus turns into a 300 × 320 mm actual cutting stroke.

Daedalus quotes three areas, and the difference between them matters for planning:

  • Basic area, 320 × 450 mm: the footprint of the extended Y frame.
  • Movement area, 320 × 370 mm: how far the carriage and bed travel.
  • Actual stroke, 300 × 320 mm: the area the bit can cut. Plan jobs to this one.

A 320 mm Y stroke is 140 mm longer than a stock 3018's 180 mm. That is the difference between cutting a serving tray in two setups and cutting it in one.

Projects that fit once the stroke grows:

  • Serving trays and cutting boards: hardwood up to about 300 × 320 mm with a routed well.
  • Long plaques and name signs: cedar or pine planks carved end to end.
  • Model and RC parts: more parts nested on one sheet of plywood or PVC foam.
  • Laser jobs: larger engravings for a 3018 running a diode head.

The name promises X and Y, but only Y grows. Daedalus is plain about this in the kit notes: the X-axis upgrade is a knob, or a knob with a new screw, not a longer axis.

Extra length adds reach, not rigidity. A longer, end-supported rod flexes more in the middle, so keep heavy passes light near the centre of the new travel.

For the full sequence of 3018 improvements, the order of 3018 upgrades places bed size after clamps, probing and the spindle.

Measurements

The spec log

SpecValue
BrandDaedalus
TypeY-axis extension with X-axis knob upgrade
Y axis lengthFrom 290 mm to 450 mm
Basic area320 × 450 mm
Movement area320 × 370 mm
Actual stroke300 × 320 mm
X axisNot extended
X upgrade, standard kitAluminium hand knob
X upgrade, work-panel kit390 mm T8 lead screw and aluminium knob
Lead screw requiredØ8 mm T8
Guide rails requiredØ10 mm
End plates requiredNo counterbore on the rail end plates
Machines namedMost 3018 Pro series, 3018 Pro, 3018 Pro Max
Also neededLonger Y limit switch cable
Weight3.48 lb (standard kit), 8.05 lb (with work panel)
Package21.65 × 3.11 × 2.91 in (standard kit)
Part numbers14 (standard kit), 21 (with work panel)

10 mm rods, T8 screws and flat end plates: the Daedalus fit test

Daedalus lists three conditions a frame has to meet. Measure all three before ordering, because a kit that misses one will not bolt up without machining.

  1. Lead screw: Ø8 mm T8. Measure the Y screw's outside diameter with calipers; T8 screws are 8 mm across the threads.
  2. Guide rails: Ø10 mm round rods. Measure the Y rods, not the X rods; some frames mix sizes.
  3. End plates: no counterbore where the rails enter the plates. Look at the plates where the rods sit; a stepped pocket around the rod end is a counterbore.

Frames that fail one test:

  • LUNYEE 3018 Pro Max: LUNYEE builds it around a 12 mm optical axis, outside the kit's 10 mm requirement.
  • Genmitsu 3018-PRO and MX3: Genmitsu sells its own Y kit drawn for those frames, which is the safer pairing.
  • 3018-PROVer V2: an all-metal frame with its own Genmitsu extension kit.
CheckNeededHow to measure
Y lead screwØ8 mm T8Calipers across the threads
Y guide rodsØ10 mmCalipers on a clean section of rod
Rail end platesNo counterboreLook for a stepped pocket at the rod end

Daedalus names the 3018 Pro and 3018 Pro Max class of machines. Many 775-spindle Pro and Pro Max kits share 10 mm rods and T8 screws, which is the group the kit was drawn for.

The Pro Max name covers very different frames: LUNYEE's is all-metal on 12 mm rods, CNCTOPBAOS's has nylon plates and a 775. Trust the calipers over the model name on the box.

The 3018-PRO comparison lists which builds share the classic rod-and-screw layout.

In the lineup

Where it lands among 3018 gear

3018 CNC machine models by type, September 2026. Highlighted: Daedalus 3018 X/Y Upgrade Kit.

The aluminium X knob and the 390 mm screw in the work-panel kit

Both Daedalus kits add something to X. The standard kit fits an aluminium knob to the X screw; the work-panel kit adds a 390 mm T8 lead screw with the knob, plus a work panel for the longer bed.

A knob on X is a small upgrade with daily use. Turning a bare screw end by hand to nudge the gantry for tool changes or setup leaves oily fingers and poor control; a knob gives a grip and a feel for each millimetre.

  • Standard kit (3.48 lb): Y extension parts and the X knob.
  • Work-panel kit (8.05 lb): the same Y parts, a 390 mm X lead screw with knob, and a work panel to cover the new Y length.

The work panel is what justifies the heavier kit. After a Y stretch, the stock 3018 bed is still 180 mm deep, so the new stroke has nothing to hold stock on unless the bed grows too.

Wiring and settings after the rebuild:

  1. Fit a longer Y limit switch cable. Daedalus says the original may not reach, and a cable under tension breaks at the far end of travel.
  2. Check the Y motor lead reaches with the bed at both ends.
  3. Raise GRBL setting 131, the Y max travel, to the stroke you can jog, if homing or soft limits are on.
  4. Leave setting 101 alone: the Y screw is still a T8, so steps per millimetre do not change.
Before the first job, cut a 250 mm line in Y and measure it. A short line means lost steps or a loose coupling; a skewed square means the extended Y is out of square.

The Candle and UGS notes show where GRBL settings are typed in.

Swap-ins

Three other ways to go

X-axis rebuild2 3018 Pro X-Axis Upgrade Kit
3018 Pro X-Axis Upgrade Kit
A metal 3018 Pro X-axis kit built around SCS12VUU and SCV10VUU bearing blocks and a T8 screw; bed size stays the same.
  • Longer travel for bigger stock
  • Fits 3018-PRO
Get it here
Bigger and stiffer3 Genmitsu 4040-PRO CNC Router
Genmitsu 4040-PRO CNC Router
The Genmitsu 4040-PRO is a larger machine built for metal and acrylic as well as wood.
  • The step up from a 3018
  • 400 × 400 mm work area
  • Stiffer frame for metal and acrylic
Get it here

Daedalus against the Genmitsu Y kit and a 4040 machine

Three routes lead to a longer bed. The best one depends on who made your 3018 and whether length is really the limit on your work.

RouteFrameResult
Daedalus X/Y kit3018 Pro class with Ø10 rods, T8 screw300 × 320 mm stroke, X knob
Genmitsu 3018 Y kitGenmitsu 3018-PRO, 3018-MX3370 mm of Y movement
Genmitsu PROVer V2 Y kit3018-PROVer V2220 mm more Y, 300 × 400 mm with its bed
Genmitsu 4040-PRONew machine400 × 400 mm class bed, stiffer frame

On a non-Genmitsu frame that passes the fit test, the Daedalus kit is the direct option, and the X knob comes free with it. On a Genmitsu, the maker's own kit avoids any doubt about hole positions and parts.

  • Non-Genmitsu 3018 with 10 mm rods and T8 screws: this kit.
  • Genmitsu 3018-PRO or MX3: the Genmitsu 3018 Y kit.
  • An X-axis rebuild without more length: the 3018 Pro X-axis upgrade kit.
  • Width and stiffness as well as length: a 4040-size machine.

A stretch is worth it when parts are long and light. If the frustration is chatter in aluminium or stalling in hardwood, length will not fix it, and the spindle or frame is the better place to spend.

Budget an afternoon for the swap itself. The Y axis comes apart, the new parts go in, the frame is squared, and the wiring is re-routed, the same job as any 3018 extension kit.

Checks before ordering:

  • Y screw Ø8 mm T8, Y rods Ø10 mm, end plates without counterbore.
  • A longer Y limit cable on hand.
  • A bed plan for the new length: the work-panel kit or your own spoilboard.
Bench notes

Setup questions

Does the Daedalus kit extend the X axis?

No. Only Y grows. X gets an aluminium knob, and the work-panel kit adds a 390 mm T8 X screw with the knob.

Will it fit my 3018?

It needs a Ø8 mm T8 Y lead screw, Ø10 mm guide rails and rail end plates without a counterbore. Measure all three before ordering.

Does it fit the LUNYEE 3018 Pro Max?

LUNYEE's 500W Pro Max uses a 12 mm optical axis, which is outside the kit's 10 mm rail requirement.

What cutting area do I get?

Daedalus quotes a 300 × 320 mm actual stroke, inside a 320 × 370 mm movement area.

Do I need new wiring?

A longer Y limit switch cable is required, and the Y motor lead may need extending.