For hobby CNC routers · Windows 10 and 11

Claude has the ideas. Cutline makes them cut.

Type what you want to build. Claude designs it, and Cutline Studio turns the design into exact parts, joints sized to your plywood, a checked fit, and G-code for your machine.

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One free design in your browser, or a 7-day free trial of the app. No card needed.

You typeMake me a 36 by 24 inch cupboard with a divider and shelves, a back that tabs in, and a cut-out for an outlet.

The finished plywood cupboard with a divider and three shelves, cut on a CNC router from Cutline Studio's plans

Cutline Studio's cut sheet for the cupboard: parts nested on a 48 by 48 inch sheet

10 parts2 sheets of 1/2 in plywoodCut and built from the plans

The app

AI design and CNC CAM in one window

Chat with Claude on the left, see the parts on the right, then send each sheet to CAM and save the G-code. Claude asks a few questions first, so the design fits your sheet and your machine.

Cutline Studio's Design screen: the chat with Claude on the left and a dimensioned parts drawing on the right — Cutline Studio 1.0 on Windows, designing a 24 × 36 in bookshelf.

What you get

Plans you can build from, and files your machine can run

Every project comes with a plans PDF and the cutting files. These pages are from the plans for the cupboard above, exactly as Cutline Studio produced them.

Cupboard plans page with the material, cut list, hardware and assembly steps — **Instructions**Material, cut list, hardware and step-by-step assembly

Cupboard plans page with dimensioned drawings of the back panels, top and bottom — **Every part, dimensioned**Joints, pocket depths and which face goes up on the machine

Cupboard plans page showing six parts nested on the first 48 by 48 inch sheet — **Cut sheet**Where each part sits on your plywood, and where to set zero

Plans PDF G-code one file per sheet DXF one file per sheet, for other CAM Open the cupboard plans (PDF)

What it does

The part between a good idea and a clean cut

An idea and a sketch are the easy part. Getting parts that fit together, from the plywood you actually have, on the machine you actually own, is where projects usually go wrong. That's the work Cutline Studio does around Claude.

The usual wayCutline Studio

Your plywood"3/4 in" plywood is really about 23/32 in. Slots drawn at 3/4 in come out loose, or so tight they split.You measure your sheet once. Every slot, tab and finger is cut to that thickness plus a small fit allowance.

Exact shapesCoordinates are typed or guessed, and a small mistake shows up only after the part is cut.Claude describes the parts and joints. Cutline's geometry engine builds the exact shapes and rounds inside corners for your bit.

Checking the fitNothing checks that a tab lines up with its slot or that two joints don't collide.An assembly check runs on every design. On the box below, it caught finger joints clashing with the lid's lip, and Claude fixed them on its own.

Your sheet and bedYou lay the parts out by hand and hope they fit your machine.Parts are nested on your sheet or scrap, inside your machine's cutting area, and you're told if something doesn't fit.

The G-codeG-code written by hand or by a general tool can miss the bit offset, cut a dado all the way through, or plunge too fast.Cutline CAM writes it: cuts offset for your bit, pockets at their real depth, holding tabs, true arcs, and the right format for your controller.

Cutline still asks you to check each design before cutting. It's software and an AI model, and it can be wrong. It catches the mistakes that waste plywood and break bits.

A real project

From one prompt to a CNC-cut plywood cupboard

The prompt, the plans Cutline made, and the cupboard cut from them. Open the plans and G-code yourself.

Cupboard with a divider and outlet cut-out

36 × 24 inReal build

PromptMake me a 36 by 24 inch cupboard with a divider and shelves, a back that tabs in, and a cut-out for an outlet.

Designed in Cutline, cut from two 48 × 48 in sheets of 1/2 in plywood, and put together with glue and brad nails. The notch in the back clears a wall outlet.

Cupboard with a divider and outlet cut-out cut sheet 1 drawn by Cutline Studio — Straight from Cutline Studio, not redrawn. Two 48 × 48 in pieces of 1/2 in plywood, 1/4 in bit.

10parts

2sheets, 48 × 48 in

1/2 inplywood (0.478 in measured)

Fingerjoints, tabs and mortises

Cut list, assembly steps and G-code

Cut list

Part	Qty	Size
Back panel left	1	18 3/4 × 24 in
Back panel right	1	17 1/4 × 24 in
Top panel	1	36 × 12 in
Bottom panel	1	36 × 8 in
Left side	1	8 × 24 in
Right side	1	8 × 24 in
Divider	1	8.478 × 24 in
Left shelf	1	12.239 × 8.478 in
Right shelf	1	24.239 × 8.478 in
Half shelf	1	24.239 × 8.478 in

Joints

Finger joints join the sides to the top and bottom. The divider's tabs push through mortises in the top and bottom, and the shelves tab into the sides and divider. The back is two panels with mortises for those tabs, and a notch in the right panel clears a wall outlet.

Hardware

Wood glue
1 in brad nails or #6 × 3/4 in screws to fix the back to the top, bottom and sides

Assembly

Dry fit everything first.
Glue the sides to the top and bottom panels with the finger joints. Leave the divider out for now.
Push the divider's top and bottom tabs through the top and bottom panel mortises.

G-code, sheet 1 (.nc)G-code, sheet 2 (.nc)Open the plans (PDF)

Made for an Apprentice 404 with a 1/4 in bit. Check it in your own CAM and air-cut it before cutting.

Built in the shop

Cupboard with a divider and outlet cut-out: On the machine

Cupboard with a divider and outlet cut-out: Parts off the sheet

Cupboard with a divider and outlet cut-out: Finished

Photos of the real build. Some backgrounds were touched up; the machine, parts and cupboard are unedited.

Coming soon · for Grbl Free with Studio

Cutline Control: design, cut and run the machine in one app

Cutline Control is coming to Cutline Studio as a new part of the same app. It isn't a separate program. Design the project, make the G-code, then switch to Control and run the job on your Grbl, grblHAL or FluidNC machine, with Claude there to help if something goes wrong. It's in testing now.

Included with Cutline Studio. When Control is ready it arrives in a normal Studio update, inside the app you already have. There's nothing extra to buy or install, on any plan.

Cutline Control in Advanced mode: position readouts, jog pad, touch-plate probing, toolpath preview, run controls and feed override

Basic, Intermediate or Advanced. Step-by-step for a first cut, or every control at once.
Checks before the bit moves. Warns if the job is bigger than your machine, and finds G-code lines your controller can't run.
Zero with a touch plate, pause, stop, feed override and resume from a line.
USB or network, with a list of common machines from 3018s to Shapeoko XXL. Routers and lasers.
Claude at the machine for alarms and questions.

Advanced mode, from the build in testing, running in demo mode. Features may change before release.

Pricing

Subscribe with AI included, or buy it once

Monthly

$15/ month

AI included, no API key needed
Every update
Cutline Control, built in, when it's released
Cancel any time

Subscribe monthly

Best value

Yearly

$129/ year

Everything in Monthly
Save $51 a year
Cutline Control, built in, when it's released
Cancel any time

Subscribe yearly

Buy outright

$149once

Lifetime licence for all 1.x versions
Use your own Anthropic API key
Our test designs cost 9 to 28 cents of AI each
Cutline Control, built in, when it's released

Buy a licence

Free trial: 7 days or $1.50 of AI, whichever comes first. 30-day money-back guarantee (refund policy). Prices in USD; tax added at checkout.

Questions

FAQ

What does Cutline add to Claude?

Claude is good at ideas and at describing parts. Cutline sizes the joints to your measured plywood, checks that the parts fit together, nests them on your sheet, and writes G-code for your bit and controller.

Is Cutline Control a separate app?

No. Control will be part of Cutline Studio itself and will arrive in a normal Studio update. You design, make the G-code and run the machine in the same window, with no second program to install and nothing extra to pay.

Do I need a Claude account or API key?

Not with a subscription. With the buy-outright licence, you add your own Anthropic API key and pay Anthropic directly, usually a few cents to about 30 cents per design.

Which machines does it work with?

Hobby routers that run Grbl or Mach3/Mach4 G-code, such as Shapeoko, Onefinity, Sienci LongMill, X-Carve, OpenBuilds, Apprentice and 3018 machines.

What happens when the trial ends?

Designing and CAM keep working. Saving G-code, DXF files and plans needs a licence.

Does it work on Mac?

Not yet. Windows 10 and 11, 64-bit.

What about privacy?

No analytics, ads or tracking on this site or in the app. See the privacy policy for what the app sends and why.

Is CNC cutting dangerous?

Yes. Check each design, air-cut new G-code with the bit raised, clamp your work, wear eye and ear protection, and never leave a running machine.

Download

Try it free for 7 days

Windows 10 or 11 (64-bit), an internet connection, and a CNC router that runs Grbl or Mach3/Mach4.

Download Cutline Studio

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Contact

Questions?

[contact email]