Tool

Slider Calculator

Compute the number of sliders and margin of error for your bamboo size.

90 mm
2.0 mm
1.0 mm

Circumference

283

mm

Sliders needed (≤1% err)

95

sliders

Coverage (at 90)

270

mm

Margin of error

4.5

%

Error margin 4.5% — acceptable for joinery
With 90 sliders at 2.0 mm + 1.0 mm spacing, the gauge covers 270 mm of a 283 mm circumference — a 4.5% error margin, acceptable for practical bamboo joinery applications.

How It Works

1

Measure Your Bamboo

Use a caliper to measure the diameter of the bamboo culm you want to join.

2

Adjust Parameters

Set the bamboo diameter, slider diameter, and spacing to match your prototype specifications.

3

Read Results

The calculator shows circumference, recommended slider count, coverage, and error margin. Aim for ≤5% error for practical joinery.

Formula: Circumference C = π × D. Pitch = slider diameter + spacing. Error = (C - coverage) / C × 100%.