3D Printer FYI

Print symptom

Layer separation

Layers split after they should have bonded. Check nozzle temperature, flow, and cooling.

Layer separation
Editorial diagram of layers splitting apart. Not a photograph of a specific printer.

  1. Inspect whether layers separate more easily than expected and compare with a small temperature increase.

    Nozzle temperature is too low for adequate interlayer bonding

    Increase nozzle temperature in small increments; Prusa suggests 5 C steps for PLA troubleshooting.

    Try this first · Medium risk

  2. Verify temperature/cooling first, then run a controlled flow comparison.

    Insufficient extrusion flow contributes to weak layer bonds

    If appropriate, increase flow gradually; the cited guide suggests 5% increments while testing.

    Later or more involved · Medium risk

  3. Compare with reduced cooling or a warmer/stabler environment.

    Excessive part cooling or cold surroundings weaken interlayer adhesion

    Reduce excessive cooling and/or use an enclosure for shrink-prone materials.

    Try this first · Low risk

Completing a check records what you tried. It does not eliminate a cause. Continue in the worksheet