Creality Dog Test Print

If you have just unboxed a Creality printer, the small dog waiting on the included memory card is not a bonus toy — it is the factory’s own first-print check. This guide explains what the dog test print actually is, how to run it, and how to read the finished model so you know whether your machine is healthy or needs adjustment.

What the Creality dog test print actually is

The dog test print is a ready-to-print file that Creality loads onto the microSD card supplied with many of its printers, including the Ender-3 family and much of the CR range. The file (often named something like “dog” or “dog.g”) is pre-sliced G-code: the slicing decisions — temperatures, speeds, layer height — have already been made by Creality and are set up for PLA filament. That is why you can print it straight from the card without opening a slicer at all.

Creality includes it for one simple reason: it separates assembly problems from slicing problems. If a brand-new machine prints the dog cleanly, the hardware is working, and any trouble you meet later almost certainly comes from your own slicer settings or filament. The model itself — a small sitting dog with a rounded body, head and ears — is a quietly demanding shape: curves, overhangs and fine features that show up extrusion and cooling problems far better than a plain cube would.

One correction worth making clearly, because other pages get it wrong: there is no “Creality Dog software.” The dog is simply a test model file on the card. It is not a program, it has no features to unlock, and it does not convert or slice anything.

What a successful dog print proves — and what it does not

A clean dog print is a genuine health check, but it has limits. Knowing both sides stops you from over-trusting it or panicking over it.

A good dog print proves:

• All three axes move correctly and the motors are wired and working.
• The extruder feeds filament consistently and the hotend reaches and holds printing temperature.
• The heated bed works, and your bed levelling is close enough for reliable first-layer adhesion.
• The belts are tensioned well enough to avoid obvious slipping, and the frame is assembled square enough to print a recognisable, symmetrical model.
• The part-cooling fan works — visible in clean overhangs under the chin and ears.

A good dog print does not prove:

• That your printer is precisely calibrated. The file uses Creality’s fixed settings, so it says nothing about your E-steps, flow rate or dimensional accuracy. A dog can look fine while your own sliced prints come out under-sized or over-extruded.
• That your slicer profile is any good. Your first self-sliced print is a separate test.
• That the machine will print other materials well. The test file is sliced for PLA; PETG, ABS and TPU each need different temperatures and settings.
• That nothing will wear or drift later. Belts stretch and nozzles wear; the dog is a day-one check, not a lifetime guarantee.

How to run the dog test print

1. Insert the card. Push the microSD card supplied with the printer into the card slot until it clicks.
2. Load PLA filament. Feed filament through the extruder until it reaches the hotend. Use the PLA supplied in the box if you have it — the test file assumes PLA temperatures.
3. Select the file. On the printer screen, open the print menu (usually “Print from TF card” or similar) and choose the dog file.
4. Stay for the start. The machine will heat up and begin. Watch the first few minutes: you want a smooth priming line, then a first layer that goes down in even, slightly squashed lines that touch each other with no gaps and no scraping.
5. Let it finish. Depending on the model and file version, the dog typically takes somewhere between one and two hours. Resist changing settings mid-print — you are running a test, not tuning.

If the first layer fails in the first few minutes, stop the print. A failed start is almost always bed levelling or a dirty build surface, and no setting elsewhere will rescue it.

Reading the finished dog: what defects point to

Once the print finishes, look at the dog closely before you print anything else. Most common defects point at one specific cause:

What you see	What it usually points to	First fix to try
First layer peeled or never stuck	Bed too far from the nozzle, or a greasy/dirty bed	Clean the bed, then re-level and adjust the gap
First layer extremely flat and wide, nozzle ploughing	Nozzle too close to the bed	Re-level with a slightly larger gap
Sudden step or shift sideways partway up	Loose belt, loose pulley, or the print snagged	Check belt tension and pulley grub screws on that axis
Gaps, thin or spongy walls, clicking from the extruder	Under-extrusion: partial clog, tangled spool, weak extruder grip or temperature too low	Check the spool path, clean/replace the nozzle, confirm temperatures
Fine hairs and strings between features	Stringing — retraction and temperature (the test file’s settings are fixed, so some stringing can come from the file itself)	Note it, then judge again on your own sliced print before changing hardware
Blurred echo lines after corners (“ringing”)	Belts or frame slightly loose, or vibration through the table	Re-tension belts, check frame bolts, use a solid surface
Corners of the base lifting or warped	Poor adhesion and uneven cooling at the base	Clean the bed, re-level, shield the printer from draughts

If your dog shows one of the mechanical issues above, work through it methodically rather than guessing: our step-by-step Ender 3 calibration guide covers bed levelling, E-steps, flow and the rest of the checks in the right order, and most of it applies to any Creality machine.

The lucky cat test file

Many Creality cards carry a second test model: a lucky cat (the beckoning fortune cat). It serves exactly the same purpose as the dog — a pre-sliced file you print first to confirm the machine works — and some owners simply prefer it, or print it after fixing a problem the dog revealed, as a second opinion.

You do not need both. If your printer came with only one of the two files, nothing is missing: one clean test print tells you what you need to know. Read the cat exactly as you would read the dog — level, adhesion, layer consistency and clean overhangs.

Lost the SD card or the file? Getting the test files back

Cards get lost, wiped or corrupted. If your test files are gone, there are two honest routes back:

• Creality’s official support and download pages. Creality hosts downloads for its printer models, including firmware and the files bundled for each machine. Look for your exact model’s download/support section on Creality’s website and check what is bundled there.
• Community archives. Owners of popular models (the Ender-3 especially) have archived the original SD card contents in community file collections, forums and code-hosting repositories, so the original dog and cat files circulate widely.

One caution that matters: a test file is G-code — literal machine instructions — sliced for a particular printer. Only run a test file that matches your model, and be wary of random G-code from unknown sources. The safer path, if you can find the dog or cat as an STL model instead, is to slice it yourself in your normal slicer: you get the same test shape with settings you control and trust.

Frequently asked questions

What is the Creality dog test print?

It is a pre-sliced test model file included on the microSD card supplied with many Creality printers. Because the slicing is already done, you print it directly from the card as a first print to confirm the machine was assembled correctly and is working.

My dog print failed — is my printer broken?

Almost certainly not. Most failed dog prints trace back to bed levelling, a dirty build surface or filament not feeding smoothly — all fixable setup issues, not broken hardware. Use the defect table above to find the cause, fix it, and run the test again.

How long does the dog test print take?

It depends on the printer model and the file version on your card, but typically somewhere between one and two hours. Speeding it up is not recommended — the point is a clean diagnostic print, not a fast one.

Should I print the dog or the cat test file?

Either. Both are pre-sliced factory test files doing the same job. Print whichever your card includes; if both are there, the second one is handy as a re-test after you have adjusted something.

Can I delete the test files from the card?

Yes — they are ordinary files, and the card can be reused for your own prints. It is worth keeping a copy of the original files on your computer first, so you can re-run the factory test later if the printer ever develops a problem and you want a known-good file to check it with.