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SpeakCAD for the Anycubic Kobra S1
Custom parts for the Anycubic Kobra S1: describe them, download G-code sliced for it
Anycubic's enclosed 250 mm CoreXY, sold alone or as a Combo with the ACE Pro multi-colour box. SpeakCAD ships the Anycubic Kobra S1's own OrcaSlicer profile: describe a part in plain English, watch it render on a virtual 250 x 250 mm bed, edit it by chat, and download a .gcode file, ready for the SD card, the USB stick or the printer's own upload page. Or take the STL or 3MF to your usual slicer. Runs in Safari and Chrome, on a phone or a computer, nothing to install.
How it works
From a sentence to the Kobra S1's SD card
The slicer runs on our side with the same profiles OrcaSlicer ships for the Anycubic Kobra S1. You choose the print profile and the filament; the printer settings are already right.2
Check it on the Kobra S1's bed
The part renders on a virtual bed the size of the Kobra S1's. The first render usually appears within a minute or two: a new part gets deeper reasoning through the geometry, and small edits land in seconds. Turn it, tap a face to read a size, open the dimensions panel, and see whether it has overhangs that need supports. Anything wrong is one sentence to fix.3
Pick the Anycubic Kobra S1 and its profile
In the download dialog choose the Anycubic Kobra S1, one of its print profiles (0.2 mm), a filament, then infill, walls, supports and adhesion. The printer and its last settings are saved to your account.4
Download and print
You get a .gcode file, ready for the SD card, the USB stick or the printer's own upload page, with the estimated print time and filament weight. Re-slicing a design you already downloaded does not spend the 10 credits again; without Pro or Unlimited each slice still spends 5 credits.The Anycubic Kobra S1 profile SpeakCAD slices with
| Setting | Value |
|---|---|
| Printer | Anycubic Kobra S1 (Anycubic) |
| Printable area in the profile | 250 x 250 x 250 mm |
| Nozzle variants | 0.4 nozzle |
| Layer heights in the print profiles | 0.2 mm |
| Filament profiles | PLA, PETG, ABS, ASA, TPU, PLA-CF, PETG-CF, PC, PA, PA-CF, plus the OrcaSlicer filament library |
| Download | G-code, or STL and 3MF for your own slicer |
| Slicer | OrcaSlicer, run on our servers with the printer's official profile |
| Your own STL or 3MF | The online slicer: .gcode with this profile; 1 free slice with a free account, then a Slicer pack slice or 5 credits; included in Pro and Unlimited |
Prompts sized for the Kobra S1
Copy one, change the numbers to yours. Each opens in the editor with the text already typed.“Riser feet for an Anycubic Kobra S1: four 45 x 45 mm pads 30 mm tall with a 5 mm recess for the stock feet, 3 mm walls, 25 percent infill.”
Open this prompt in the editor“A lid riser for the Kobra S1: four corner posts 40 mm tall that locate on the glass lid's edges with a 5 mm lip, 3 mm walls, printed in ABS.”
Open this prompt in the editor“An ACE Pro PTFE guide arm: 120 mm arm that clips to the rear top edge of a Kobra S1 with 0.3 mm clearance, two 4 mm tube holes 15 mm apart, 2.4 mm walls.”
Open this prompt in the editorWhy Kobra S1 owners do not need a slicer on the phone
Slicing is the step that keeps 3D printing on the desktop: a design made anywhere still has to pass through Bambu Studio, PrusaSlicer or Cura on a computer. SpeakCAD runs OrcaSlicer on its own servers with the profile OrcaSlicer ships for the Anycubic Kobra S1, so the phone that typed the description also downloads G-code. The desktop slicer stays the better choice for arranging many parts on one bed or for exotic settings; for one part at a time, the download dialog covers the profile, the filament, infill, walls, supports and adhesion.
Slice your own STL for the Kobra S1
Already have the file, a Printables or MakerWorld download or a part from your own CAD? The online slicer slices an STL or 3MF of up to 50 MB with the same Anycubic Kobra S1 profile, without the AI: layer heights from 0.2 to 0.2 mm, filament presets for PLA, PETG, ABS, ASA, TPU, PLA-CF, PETG-CF, PC, PA, PA-CF, infill, supports, walls and bed adhesion. You download a .gcode file, with the print time and filament weight. The online slicer gives every account 1 free slice, its first (a free account, no card). After that, a slice uses one slice from a Slicer pack (20 slices for $3, once, never expire) or 5 credits, and slicing is included in Pro and Unlimited. Re-slicing the same file with other settings within 10 minutes is free. Open the online slicer.
Parts that fit the Kobra S1
The Anycubic Kobra S1's 250 x 250 mm bed and 250 mm height are what the virtual bed in the viewer shows, so a part that looks too big is too big. Ask for a part to be split into two halves with alignment pins when it does not fit, or for a flat print orientation when it would need supports. The examples above and the library parts below all fit.
Parts that fit the first time
The Anycubic Kobra S1 prints slightly differently from the next printer, which is why holes come out tight and lids loose. Fit Check cuts a five-minute test slice from the interface that must fit, you report too tight, perfect or too loose, and every model after that is built with the clearance your Kobra S1 needs. The test slice downloads free as STL or 3MF. How Fit Check works.
The Kobra S1 against its rivals
Anycubic Kobra S1 vs Bambu Lab P1SKobra S1 vs P1S: enclosed CoreXYs with a four-spool colour box. The S1 Combo launched around $550 with a drying ACE Pro; the P1S at $949 with the AMS. Verdict.Elegoo Centauri Carbon vs Anycubic Kobra S1Centauri Carbon vs Kobra S1: enclosed CoreXYs at $299 and about $420 at launch. The Elegoo has a hardened nozzle and a 256 mm bed; the Kobra S1 the ACE Pro.Best 3D printers in 2026The same machines sorted by budget, bed size and filament.
Ready-made parts for the Kobra S1 in the library
Anycubic Kobra S1 lid riserFour corner spacers that hold the top lid of an Anycubic Kobra S1 about 20 mm open, venting the chamber for PLA and letting a PTFE tube pass.Anycubic Kobra S1 riser feetRiser feet that lift a Kobra S1 25 mm so its bottom vents breathe and the ACE Pro cable can run under it.
Questions
Yes. The Anycubic Kobra S1 is one of the 380+ printers in the slicer catalog, with its nozzle variant and the print and filament profiles OrcaSlicer ships for it. Pick it in the download dialog and download G-code; it is saved to your account for next time.
No. SpeakCAD slices on its servers and gives you a .gcode file. Copy it to the SD card or USB stick the Kobra S1 takes, or upload it through the printer's own web page or app. If you prefer your own slicer, download the STL or 3MF instead.
The print profile (layer height and speed presets from the Anycubic Kobra S1's profile), the filament profile (the printer's own and the OrcaSlicer library: Generic PLA, PETG, ABS, ASA, TPU, carbon-fibre blends and hundreds of branded filaments), infill, wall count, supports and bed adhesion. Nozzle temperature, bed temperature and speeds come from the profiles you pick.
The virtual bed in the viewer is sized from the Anycubic Kobra S1's profile (250 x 250 mm), so you see it before slicing. Ask for the part to be split into two pieces with alignment pins or a dovetail, or for a different orientation; each is one sentence.
Sliced downloads are included in Pro ($14.99 a month, 200 credits) and Unlimited ($39.99 a month); with Starter credits ($5 once for 50 credits, no subscription) a sliced download spends 5 credits on top of the usual 10. Re-slicing a design you already downloaded does not spend the 10 credits again; without Pro or Unlimited each slice still spends 5 credits. STL and 3MF downloads are always available.
Yes. Upload the STL or 3MF (up to 50 MB) to SpeakCAD's online slicer, pick the Anycubic Kobra S1, choose the layer height, filament, infill and supports, and download a .gcode file. It slices with the same OrcaSlicer profile as the editor's G-code download, in the browser on a computer, a Chromebook, an iPad or a phone. The online slicer gives every account 1 free slice, its first (a free account, no card). After that, a slice uses one slice from a Slicer pack (20 slices for $3, once, never expire) or 5 credits, and slicing is included in Pro and Unlimited. Re-slicing the same file with other settings within 10 minutes is free.
Yes. The editor runs in Safari on iPhone and iPad and in Chrome on Android; the file lands in Files or Downloads, ready for the card or the printer's app. The same project opens later on a desktop.
Read more
Every Anycubic printerThe Anycubic models the slicer has a profile for, with their nozzles, bed sizes and layer heights.All 380+ printersEvery printer the slicer has a profile for, by brand.Online slicerSlice your own STL or 3MF for the Kobra S1 in the browser, no AI, nothing to install.From a phone to the slicerGetting the file from Files or Downloads onto the printer.Exporting to slicersSTL vs 3MF, units, and what the slicer does with the file.The AI 3D editor on your phoneDescribe, render, edit and download from a phone browser.From a ChatGPT description to a filePaste the spec ChatGPT wrote and get the file it could not make.