name = "steve/spur-gear"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Involute spur gear, ISO 53 basic rack, ISO 54 modules 0.5 to 2: teeth, bore and width as presets."
description = """Spur gear with real teeth cut from the ISO 53 basic rack: involute flanks and the trochoid root a rack cutter makes (20 degree pressure angle, no profile shift), as a plain disc with a round bore. detail = simple gives a disc at the tip diameter for big assemblies. Axis along Z, centred on the origin. See the README."""
tags = ["gear", "spur-gear", "involute", "iso-53", "metric", "power-transmission"]

[parameters.module]
type = "choice"
default = 1
choices = [0.5, 0.8, 1, 1.25, 1.5, 2]
label = "Module"

[parameters.teeth]
type = "integer"
default = 20
min = 10
max = 120
label = "Teeth"

[parameters.bore]
type = "number"
default = 8
min = 1
max = 100
unit = "mm"
label = "Bore"
description = "Must leave at least 0.25 mm of wall under the root circle."

[parameters.width]
type = "number"
default = 8
min = 1
max = 60
unit = "mm"
label = "Face width"

[parameters.detail]
type = "choice"
default = "full"
choices = ["full", "simple"]
label = "Detail"
description = "full: real teeth. simple: a disc at the tip diameter, for big assemblies."