3D-printing cookie cutters — a beginner's guide

If you've just bought your first 3D printer and want to print cookie cutters, this guide covers what you need to know. If you've been printing for a while but never tried cutters specifically, skip to the slicer settings section. That's where most first-time cookie-cutter prints go wrong.

What you need

• A 3D printer. FDM printers (the kind that extrude melted plastic from a nozzle) are perfect for this. Resin printers work but are overkill — cookie cutters don't need the fine detail resin offers, and resin handling involves more cleanup. Common starter printers that work well: Bambu A1, Prusa MK4, Creality Ender 3 V2, Anycubic Kobra. Anything that prints 0.4mm nozzle FDM works.
• Food-safe PLA filament. Don't use ABS for cookie cutters. It releases compounds at higher temperatures and isn't generally considered food-safe. PLA is the standard.
• A slicer — Cura, PrusaSlicer, or Bambu Studio depending on your printer. All free.
• A flat build plate, ideally PEI textured.

Filament. The food-safety conversation

"Food-safe PLA" is a phrase that needs unpacking. PLA itself is generally regarded as food-safe (it's made from corn starch and lactic acid — used in some food packaging), but 3D-printed PLA has two complications:

• Layer lines trap bacteria. The microscopic gaps between print layers can hold food residue and harbour bacteria. This is the real concern.
• Nozzle and printer contamination. If you've printed non-food-safe filament (ABS, PETG with colourants, anything with brass-coloured "metal-fill" PLA) through the same nozzle, residual material can be in the new prints.

Best practice:

1. Use a fresh nozzle for cookie cutter prints, or a nozzle dedicated only to food-safe printing.
2. Use natural / undyed PLA where possible — colour pigments add unknowns to the food-safety picture.
3. Wash printed cutters in hot soapy water immediately after printing and again before use.
4. Treat printed cookie cutters as single-use-per-batch hygienically. Bake cookies, wash the cutter, use again next time, but don't leave it sitting around with dough residue.
5. Consider food-grade epoxy sealing for cutters you'll use heavily. A thin layer of food-grade epoxy fills the layer lines and makes cleaning easier.

None of this is unique to our designs. It applies to any 3D-printed food-contact item.

Slicer settings. The cookie cutter sweet spot

These settings work well on most FDM printers for cookie cutters. Adjust if your printer's manufacturer recommends different baseline values.

• Layer height: 0.2mm (default for most printers). 0.16mm gives slightly cleaner edges at the cost of print time; 0.28mm prints faster but the cutting edge is slightly rougher.
• Wall count / perimeters: 3 walls. Cookie cutters are mostly walls; you want them strong.
• Infill: 15–20%. Cutters have very little internal volume, so infill barely matters, but you don't want zero infill on the flat sections.
• Top/bottom layers: 3–4 layers. Cookie cutters have very small flat sections (the part that contacts the dough); you want these solid.
• Print speed: 50–80 mm/s. Slower than your printer's max — cleaner walls.
• Print temperature: 200–210°C for standard PLA (check your filament's recommended range).
• Bed temperature: 60°C for PLA. Some printers do better at 55°C.
• Cooling: 100% part cooling fan after the first 2 layers. PLA cookie cutters want maximum cooling for clean walls.
• Support material: none needed for most cutter designs. The script-font alphabet set is an exception — see "supports" section.

When you need supports (script font, complex internal islands)

Most cookie cutters are extruded 2D shapes — no overhangs, no supports needed. The exceptions:

• Script font letters with floating sections. The dot on the lowercase "i", the dot on the "j", etc. Use tree supports — they're easier to remove than the standard pyramidal support style.
• Stencil letters with internal islands. "A", "B", "D", "O", "P", "Q", "R". The inside of the letter is a separate piece. Either use tree supports inside, or print the design as two separate pieces.
• Custom designs with bridging. Anything with a horizontal section above the print bed needs support if the gap is more than ~10mm.

Common print failures

The print won't stick to the bed

Cookie cutters are tall thin walls with a small footprint. This is the kind of geometry that's most prone to bed adhesion failure. Fixes:

• Make sure the bed is clean — wipe with isopropyl alcohol before each print.
• Level the bed properly. Most starter printers have auto-leveling; use it every few prints.
• Add a brim (5–10 mm) in your slicer settings. The extra plastic at the base improves adhesion significantly and is easy to peel off after printing.
• Reduce first-layer print speed to 20 mm/s.

The walls are wavy or look like layers are shifted

"Ringing" or "ghosting". Usually caused by mechanical vibration. Fixes:

• Place the printer on a stable surface (not a wobbly table).
• Lower print speed to 50 mm/s for the cutter walls.
• Check that all belts on the printer are tight.
• If the printer supports input shaping (Klipper, Bambu, newer Prusas), calibrate it.

The cutter edge is dull or rounded

The print came out fine but it won't cut dough cleanly. Two possible causes:

• Layer height is too thick. Try 0.16mm layers for sharper edges.
• The cutter design has a too-wide cutting wall — typically 0.4mm should be the cutting edge. If your slicer rendered it thicker, scale the cutter design down slightly in the slicer.

The cutter is too small / too big

Our default cutter dimensions assume ~3–4mm rolled cookie dough and target a finished cookie of 5–8 cm across. If you want larger cookies, scale the design up uniformly in your slicer (Cura: right-click the model → Scale; PrusaSlicer: Scale tool). Maintain aspect ratio.

Print time and material cost — what to expect

Rough numbers per cutter on an Ender 3 V2 or equivalent:

• Print time: 20–45 minutes for a simple cutter. Up to 90 minutes for a complex letter or detailed design.
• Filament cost: typically $0.10–$0.30 per cutter. A 1kg roll of PLA at $20 prints roughly 80–200 cookie cutters depending on design size.
• Electricity cost: roughly $0.05–$0.15 per cutter at typical UK/US electricity prices.

Total cost per finished cutter: under $1 for almost any design. Compare to commercial metal cookie cutters at $5–$20 each.

Tips that aren't in most guides

• Print multiple cutters at once. Most slicers can place multiple models on the print bed. A typical 235x235mm Ender bed fits 6–8 small cutters per print.
• Print at an angle if needed. Some script-font letters print cleaner if rotated 45° in the slicer — gets rid of awkward overhangs.
• Print the cutter handle thicker than the cutting edge. Most of our designs already do this, but for custom commissions, request 4mm walls for the handle and 0.4mm for the cutting edge.
• The first print of any new design is the test. Print one at full size first. Test it on a piece of dough. If you like it, print the full batch.

Where to ask questions

For Minted Prints–specific questions (a file isn't working, a slicer profile needs tweaking, a custom design enquiry), email [email protected].

For general 3D printing questions, the r/3Dprinting subreddit and the manufacturer's own forums (Bambu Lab, Prusa, Creality, Anycubic) are good places to start.