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Calcimator

Layer Adhesion Strength Calculator

Estimate interlayer bond strength based on temperature, layer height, speed, and material type.

Inputs

Results

Bond strength score (0-100)

65

Effective tensile (MPa)

29.3

Warping risk (%)15%
Delamination risk (%)35%
Temp efficiency factor1
Speed efficiency factor1
How to Use This Calculator
  1. Enter Nozzle temperature (°C), Bed temperature (°C), and Layer height (mm).
  2. Set Print speed (mm/s) and Material (1=PLA, 2=ABS, 3=PETG, 4=Nylon).
  3. Review Bond strength score (0-100) and Effective tensile (MPa).
  4. Use Warping risk (%) and Delamination risk (%) to inform your decision.

How the result changes with Print speed (mm/s)

Print speed (mm/s)Bond strength score (0-100)Effective tensile (MPa)
296529.3
7756.225.3
13437.717
18122.410.1

What each input means

Nozzle temperature (°C)
Hotend temperature. Higher improves layer fusion but may cause stringing.
Bed temperature (°C)
Heated bed temperature. Reduces warping and improves first-layer adhesion.
Layer height (mm)
Layer thickness. Thinner layers generally bond better but take longer.
Print speed (mm/s)
Extrusion speed. Slower speeds allow more heat transfer between layers.
Material (1=PLA, 2=ABS, 3=PETG, 4=Nylon)
1 = PLA (easy, moderate bond), 2 = ABS (warp-prone, needs enclosure), 3 = PETG (good adhesion), 4 = Nylon (excellent bond, hygroscopic).

What each result means

Bond strength score (0-100)
Overall interlayer adhesion quality score. Above 50 is acceptable, above 70 is good.
Effective tensile (MPa)
Estimated interlayer tensile strength in megapascals.
Warping risk (%)
Risk of part warping or lifting from the bed.
Delamination risk (%)
Risk of layers separating during or after printing.
Temp efficiency factor
How well the nozzle temp matches the material's optimal range (0-1).
Speed efficiency factor
How well the print speed supports good layer adhesion (0-1).

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Nozzle temperature (°C) = 210, Bed temperature (°C) = 60, Layer height (mm) = 0.2, Print speed (mm/s) = 50 = 5 input(s) provided
  2. Calculate Bond strength score
    65 = 65
  3. Calculate Effective tensile
    Effective tensile = baseTensile * (clampedBondScore / 100)
    29.3 = 29.3
  4. Calculate Warping risk
    15 = 15
  5. Calculate Delamination risk
    35 = 35

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