Single-Color Printer? Three Ways to Print a Tagback

An Ender 3, Anycubic Kobra, Elegoo Neptune, FlashForge Adventurer, AnkerMake M5 — these are all single-color printers without an AMS-equivalent. Good news: there are three reliable ways to get a scannable Tagback QR out of them.

Method 1 — Manual filament-swap (M600)

Most modern slicers support inserting a filament-change pause at a specific layer. The printer pauses at that layer, prompts you to change filament, you swap, resume. Result: same dual-color look as a Bambu AMS print, just with one minute of human work in the middle.

1. Load the Tagback 3MF in your slicer.
2. Slice with single-color profile (PETG, 4 walls, 30% infill, 0.2 mm layer).
3. In the preview, find the layer where the QR raise begins — usually layer 12 for Round Large, 8 for Round Small.
4. Right-click that layer → Add custom G-code → M600. (Cura: Extensions → Filament Change. PrusaSlicer / OrcaSlicer: explicit Add at Layer.)
5. Print. When the printer pauses, swap to your QR-color spool. Push through old filament until the new color extrudes cleanly, then resume.
6. Total active time: ~1 minute of human work.

Method 2 — Paint-fill the QR

Print the whole tag in one color (recommended: white or yellow PETG). The QR raise is still physically present — just monochrome. Then:

1. Let print cool fully.
2. Get a black acrylic paint marker (Posca, Sharpie Paint, or a fine brush + black acrylic).
3. Wipe the raised QR area with isopropyl alcohol.
4. Roll the marker tip only across the raised QR squares — the recessed area stays white. The raised edges give you a guide, the paint only sticks to the high points.
5. Let dry 10 minutes.
6. Seal with one coat of clear acrylic spray or clear nail polish for outdoor durability.

Result: black-on-white QR. Scans reliably. Lasts 1–2 years outdoors with the clear coat. Many makers prefer this aesthetically — handcrafted look.

Method 3 — Inkjet the QR onto a printed body

Print a solid-color tag (no QR raise — use the alternate 3MF labelled "flat-back" in the Designer's advanced options). Then print the QR as a vinyl sticker from the dashboard and apply it to the recess. This is the same workflow as the older STL approach. Less elegant than M600 but works on any printer.

Per-printer settings

Creality Ender 3 / V3 / K1

Cura with generic PETG profile works. K1 / K2 with Creality Print: enable Klipper Input Shaping for crisp QR edges. For Ender 3 V2 / S1, calibrate Z-offset carefully — the QR raise is only 0.8 mm, so first-layer over-squish smears it.

Anycubic Kobra 2 / 3 / Max

Anycubic Slicer Next: generic PETG profile is fine but flow tends to be 5% high — reduce to 95% to keep the embossed text crisp. The Kobra 3 has multi-color (ACE Pro) — that's the AMS-equivalent path; see the Bambu guide for the same workflow.

Elegoo Neptune 4 / 4 Pro / 4 Max

OrcaSlicer with the Neptune 4 profile. PETG: 240 °C nozzle, 80 °C bed, 60 mm/s. The stock magnetic bed bonds PETG too well — let it cool to under 50 °C before removing or you'll chip the PEI.

AnkerMake M5 / M5C

M5 Studio with the high-quality profile (not Fast — Fast adds ringing on small parts). The M5's Pre-Print AI camera sometimes flags a tag-sized print as too small; override the warning.

FlashForge Adventurer 5M / Pro

FlashPrint or Orca (5M is OrcaSlicer-compatible). The 5M Pro's enclosed chamber slightly helps PETG. Generic PETG profile + flow 105% is the sweet spot — Adventurer extruders run slightly cool by default.

Sovol SV06 / SV07 / SV08

Excellent budget choice. SV08 (CoreXY) is fastest. PrusaSlicer Sovol profiles work; reduce flow to 95% (default over-extrudes slightly).

Comparison: methods vs results

Recommendation

If your printer supports M600 (most do), use Method 1. Bambu and Prusa users have it easier, but a $200 Ender 3 with a 60-second pause gets you the same final result. Method 2 (paint-fill) is the most fun if you want a craft-project feel.

FAQ

Keep reading

• How to 3D print a QR pet tag (full guide)
• Bambu Lab + AMS walkthrough
• Prusa MK4 + MMU3 walkthrough
• PLA vs PETG vs TPU for pet tags