steve/timing-belt

GT2 (2GT) open timing belt as a straight envelope: width and length as parameters, with common lengths as presets.

v1.0.0 STEVE MIT 0

Open in STEVE

Isometric

Parameters

Preset14 sizes

Width4–15 mm

Length10–5000 mm

Defaults built

part.py 16 lines · Python · STEVE runtime · checked

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"""Open-ended GT2 (2GT) timing belt as a straight envelope for assemblies: a bar of the belt's overall height and width, length along X, centred on the

origin, back of the belt up. Teeth are not modelled."""

from steve import Model

width = 6 # mm Belt width

length = 300 # mm Belt length

# Handson Technology, GT2 belt data sheet: 2 mm pitch, belt height 1.38 mm, tooth height 0.75 mm.

HEIGHT = 1.38

model = Model()

with model.sketch("belt_sketch", on="XY", name="Belt") as sk:

sk.rect("outline", (-length / 2, -width / 2), (length / 2, width / 2))

model.extrude("belt", "belt_sketch", distance=HEIGHT, name="Belt")

result = model.result()

"""Open-ended GT2 (2GT) timing belt as a straight envelope for assemblies: a bar of the belt's overall height and width, length along X, centred on the
origin, back of the belt up. Teeth are not modelled."""
from steve import Model

width = 6  # mm Belt width
length = 300  # mm Belt length

# Handson Technology, GT2 belt data sheet: 2 mm pitch, belt height 1.38 mm, tooth height 0.75 mm.
HEIGHT = 1.38

model = Model()
with model.sketch("belt_sketch", on="XY", name="Belt") as sk:
    sk.rect("outline", (-length / 2, -width / 2), (length / 2, width / 2))
model.extrude("belt", "belt_sketch", distance=HEIGHT, name="Belt")
result = model.result()

pypart.toml 123 lines · TOML

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name = "steve/timing-belt"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "GT2 (2GT) open timing belt as a straight envelope: width and length as parameters, with common lengths as presets."

description = """Open-ended GT2 timing belt, 2 mm pitch, as a straight bar of the belt's overall height and width, for assemblies. Teeth are not modelled. \

Length along X, centred on the origin. See the README; not affiliated with any belt brand."""

tags = ["belt", "timing-belt", "gt2", "2gt", "power-transmission"]

[parameters.width]

type = "number"

default = 6

min = 4

max = 15

unit = "mm"

label = "Width"

[parameters.length]

type = "number"

default = 300

min = 10

max = 5000

unit = "mm"

label = "Length"

[[presets]]

id = "GT2-W6-L50"

title = "GT2 belt, 6 mm wide, 50 mm"

params = { width = 6, length = 50 }

aliases = ["GT2 belt 50", "GT2 timing belt 50mm", "GT2 belt", "2GT belt", "2GT 6mm 50", "GT2", "belt profile=GT2; straight reference length=50 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L100"

title = "GT2 belt, 6 mm wide, 100 mm"

params = { width = 6, length = 100 }

aliases = ["GT2 belt 100", "GT2 timing belt 100mm", "GT2 belt", "2GT belt", "2GT 6mm 100", "GT2", "belt profile=GT2; straight reference length=100 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L150"

title = "GT2 belt, 6 mm wide, 150 mm"

params = { width = 6, length = 150 }

aliases = ["GT2 belt 150", "GT2 timing belt 150mm", "GT2 belt", "2GT belt", "2GT 6mm 150", "GT2", "belt profile=GT2; straight reference length=150 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L200"

title = "GT2 belt, 6 mm wide, 200 mm"

params = { width = 6, length = 200 }

aliases = ["GT2 belt 200", "GT2 timing belt 200mm", "GT2 belt", "2GT belt", "2GT 6mm 200", "GT2", "belt profile=GT2; straight reference length=200 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L250"

title = "GT2 belt, 6 mm wide, 250 mm"

params = { width = 6, length = 250 }

aliases = ["GT2 belt 250", "GT2 timing belt 250mm", "GT2 belt", "2GT belt", "2GT 6mm 250", "GT2", "belt profile=GT2; straight reference length=250 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L300"

title = "GT2 belt, 6 mm wide, 300 mm"

params = { width = 6, length = 300 }

aliases = ["GT2 belt 300", "GT2 timing belt 300mm", "GT2 belt", "2GT belt", "2GT 6mm 300", "GT2", "belt profile=GT2; straight reference length=300 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L400"

title = "GT2 belt, 6 mm wide, 400 mm"

params = { width = 6, length = 400 }

aliases = ["GT2 belt 400", "GT2 timing belt 400mm", "GT2 belt", "2GT belt", "2GT 6mm 400", "GT2", "belt profile=GT2; straight reference length=400 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L500"

title = "GT2 belt, 6 mm wide, 500 mm"

params = { width = 6, length = 500 }

aliases = ["GT2 belt 500", "GT2 timing belt 500mm", "GT2 belt", "2GT belt", "2GT 6mm 500", "GT2", "belt profile=GT2; straight reference length=500 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L600"

title = "GT2 belt, 6 mm wide, 600 mm"

params = { width = 6, length = 600 }

aliases = ["GT2 belt 600", "GT2 timing belt 600mm", "GT2 belt", "2GT belt", "2GT 6mm 600", "GT2", "belt profile=GT2; straight reference length=600 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L750"

title = "GT2 belt, 6 mm wide, 750 mm"

params = { width = 6, length = 750 }

aliases = ["GT2 belt 750", "GT2 timing belt 750mm", "GT2 belt", "2GT belt", "2GT 6mm 750", "GT2", "belt profile=GT2; straight reference length=750 mm; simplified envelope"]

standard = "Handson GT2"

[[presets]]

id = "GT2-W6-L1000"

title = "GT2 belt, 6 mm wide, 1000 mm"

params = { width = 6, length = 1000 }

100

aliases = ["GT2 belt 1000", "GT2 timing belt 1000mm", "GT2 belt", "2GT belt", "2GT 6mm 1000", "GT2", "belt profile=GT2; straight reference length=1000 mm; simplified envelope"]

101

standard = "Handson GT2"

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[[presets]]

104

id = "GT2-W9-L300"

105

title = "GT2 belt, 9 mm wide, 300 mm"

106

params = { width = 9, length = 300 }

107

aliases = ["GT2 9mm belt 300", "GT2 9mm belt"]

108

standard = "Handson GT2"

109

110

[[presets]]

111

id = "GT2-W9-L500"

112

title = "GT2 belt, 9 mm wide, 500 mm"

113

params = { width = 9, length = 500 }

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aliases = ["GT2 9mm belt 500", "GT2 9mm belt"]

115

standard = "Handson GT2"

116

117

[[presets]]

118

id = "GT2-W9-L1000"

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title = "GT2 belt, 9 mm wide, 1000 mm"

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params = { width = 9, length = 1000 }

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aliases = ["GT2 9mm belt 1000", "GT2 9mm belt"]

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standard = "Handson GT2"

123

name = "steve/timing-belt"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "GT2 (2GT) open timing belt as a straight envelope: width and length as parameters, with common lengths as presets."
description = """Open-ended GT2 timing belt, 2 mm pitch, as a straight bar of the belt's overall height and width, for assemblies. Teeth are not modelled. \
Length along X, centred on the origin. See the README; not affiliated with any belt brand."""
tags = ["belt", "timing-belt", "gt2", "2gt", "power-transmission"]

[parameters.width]
type = "number"
default = 6
min = 4
max = 15
unit = "mm"
label = "Width"

[parameters.length]
type = "number"
default = 300
min = 10
max = 5000
unit = "mm"
label = "Length"

[[presets]]
id = "GT2-W6-L50"
title = "GT2 belt, 6 mm wide, 50 mm"
params = { width = 6, length = 50 }
aliases = ["GT2 belt 50", "GT2 timing belt 50mm", "GT2 belt", "2GT belt", "2GT 6mm 50", "GT2", "belt profile=GT2; straight reference length=50 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L100"
title = "GT2 belt, 6 mm wide, 100 mm"
params = { width = 6, length = 100 }
aliases = ["GT2 belt 100", "GT2 timing belt 100mm", "GT2 belt", "2GT belt", "2GT 6mm 100", "GT2", "belt profile=GT2; straight reference length=100 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L150"
title = "GT2 belt, 6 mm wide, 150 mm"
params = { width = 6, length = 150 }
aliases = ["GT2 belt 150", "GT2 timing belt 150mm", "GT2 belt", "2GT belt", "2GT 6mm 150", "GT2", "belt profile=GT2; straight reference length=150 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L200"
title = "GT2 belt, 6 mm wide, 200 mm"
params = { width = 6, length = 200 }
aliases = ["GT2 belt 200", "GT2 timing belt 200mm", "GT2 belt", "2GT belt", "2GT 6mm 200", "GT2", "belt profile=GT2; straight reference length=200 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L250"
title = "GT2 belt, 6 mm wide, 250 mm"
params = { width = 6, length = 250 }
aliases = ["GT2 belt 250", "GT2 timing belt 250mm", "GT2 belt", "2GT belt", "2GT 6mm 250", "GT2", "belt profile=GT2; straight reference length=250 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L300"
title = "GT2 belt, 6 mm wide, 300 mm"
params = { width = 6, length = 300 }
aliases = ["GT2 belt 300", "GT2 timing belt 300mm", "GT2 belt", "2GT belt", "2GT 6mm 300", "GT2", "belt profile=GT2; straight reference length=300 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L400"
title = "GT2 belt, 6 mm wide, 400 mm"
params = { width = 6, length = 400 }
aliases = ["GT2 belt 400", "GT2 timing belt 400mm", "GT2 belt", "2GT belt", "2GT 6mm 400", "GT2", "belt profile=GT2; straight reference length=400 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L500"
title = "GT2 belt, 6 mm wide, 500 mm"
params = { width = 6, length = 500 }
aliases = ["GT2 belt 500", "GT2 timing belt 500mm", "GT2 belt", "2GT belt", "2GT 6mm 500", "GT2", "belt profile=GT2; straight reference length=500 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L600"
title = "GT2 belt, 6 mm wide, 600 mm"
params = { width = 6, length = 600 }
aliases = ["GT2 belt 600", "GT2 timing belt 600mm", "GT2 belt", "2GT belt", "2GT 6mm 600", "GT2", "belt profile=GT2; straight reference length=600 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L750"
title = "GT2 belt, 6 mm wide, 750 mm"
params = { width = 6, length = 750 }
aliases = ["GT2 belt 750", "GT2 timing belt 750mm", "GT2 belt", "2GT belt", "2GT 6mm 750", "GT2", "belt profile=GT2; straight reference length=750 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W6-L1000"
title = "GT2 belt, 6 mm wide, 1000 mm"
params = { width = 6, length = 1000 }
aliases = ["GT2 belt 1000", "GT2 timing belt 1000mm", "GT2 belt", "2GT belt", "2GT 6mm 1000", "GT2", "belt profile=GT2; straight reference length=1000 mm; simplified envelope"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W9-L300"
title = "GT2 belt, 9 mm wide, 300 mm"
params = { width = 9, length = 300 }
aliases = ["GT2 9mm belt 300", "GT2 9mm belt"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W9-L500"
title = "GT2 belt, 9 mm wide, 500 mm"
params = { width = 9, length = 500 }
aliases = ["GT2 9mm belt 500", "GT2 9mm belt"]
standard = "Handson GT2"

[[presets]]
id = "GT2-W9-L1000"
title = "GT2 belt, 9 mm wide, 1000 mm"
params = { width = 9, length = 1000 }
aliases = ["GT2 9mm belt 1000", "GT2 9mm belt"]
standard = "Handson GT2"

README.md 14 lines · Markdown

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Timing belt (GT2)

Open-ended GT2 (2GT) belt, 2 mm pitch, as a straight envelope. Length along X, centred on the origin, teeth side on the XY plane. The teeth aren't modelled.

Source

Handson Technology, GT2 belt data specs: pitch 2 mm, belt height 1.38 mm, tooth height 0.75 mm, as hosted at https://naylampmechatronics.com/img/cms/000117/000117 gt2-belt-B.pdf. MISUMI's catalogue gives the same 0.75 mm tooth height for 2GT (https://uk.misumi-ec.com/pdf/fa/2014/P1_1381-1382_F19_EN_001.pdf).

Some sellers list a 1.52 mm belt height for GT2 belts. Width and length are the belt's designation. Preset lengths: step.parts catalogue metadata (MIT, library/NOTICE.md). GT3, HTD3M and HTD5M belts aren't offered yet: no table read gives their overall height.

# Timing belt (GT2)

Open-ended GT2 (2GT) belt, 2 mm pitch, as a straight envelope. Length along X, centred on the origin, teeth side on the XY plane. The teeth
aren't modelled.

## Source

Handson Technology, *GT2 belt* data specs: pitch 2 mm, belt height 1.38 mm, tooth height 0.75 mm, as hosted at
<https://naylampmechatronics.com/img/cms/000117/000117%20gt2-belt-B.pdf>. MISUMI's catalogue gives the same 0.75 mm tooth height for 2GT
(<https://uk.misumi-ec.com/pdf/fa/2014/P1_1381-1382_F19_EN_001.pdf>).

Some sellers list a 1.52 mm belt height for GT2 belts. Width and length are the belt's designation. Preset lengths: step.parts catalogue
metadata (MIT, `library/NOTICE.md`). GT3, HTD3M and HTD5M belts aren't offered yet: no table read gives their overall height.

Use this part

STEVE

Open in STEVE

Open it in STEVE The STEVE runtime runs in STEVE: open the part there, or download the code and bundle.

Get the code

curl -o part.py "https://pythonparts.org/p/steve/timing-belt/v/1.0.0/raw/part.py"

Raw files, bundle and API

part.py
pypart.toml
README.md
bundle.tar.gzthe package, as published

curl "https://pythonparts.org/api/v1/parts/steve/timing-belt/1.0.0"

The version's JSON (parameters, presets, files); add /build?name=value for a build at other values.

About this part

steve72 parts

Profile

License: MIT

Permissive: use, change and sell it; keep the copyright notice.

Runtime: STEVE
Requirements: None stated in the code
Built with: CadQuery 2.9.0.dev0
Published: Nov 4, 2026
Downloads: 0
Builds: 0
Stars: 0
Bundle: c9021f18a593…

#belt #timing-belt #gt2 #2gt #power-transmission

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Open-ended GT2 timing belt, 2 mm pitch, as a straight bar of the belt's overall height and width, for assemblies. Teeth are not modelled. Length along X, centred on the origin. See the README; not affiliated with any belt brand.

Timing belt (GT2)

Open-ended GT2 (2GT) belt, 2 mm pitch, as a straight envelope. Length along X, centred on the origin, teeth side on the XY plane. The teeth aren't modelled.

Source

1.1.0 Latest Nov 5, 2026 · 1 hour ago Compare with 1.0.0

Real teeth. detail = simple keeps a plain bar.
1.0.0 Nov 4, 2026 · 3 hours ago

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Source

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Source

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