steve/macropad-keyplate

Adafruit MacroPad RP2040 key plate (product 5128): 3 x 4 switch cut-outs, measured from Adafruit's published model.

v1.0.0 Latest STEVE MIT 0

Open in STEVE

Isometric

Parameters

Preset1 size

Plate thickness0.5–5 mm

1.57 mm (a 1.6 mm board) in Adafruit's model.

Defaults built

part.py 44 lines · Python · STEVE runtime · checked

Download

"""Key plate of the Adafruit MacroPad RP2040 kit (Adafruit product 5128): a 59.69 x 78.74 mm plate with rounded

corners and a 3 x 4 grid of 14.224 mm square key switch cut-outs at 19.05 mm (0.75 in) pitch.

The plate lies on the XY plane from z = 0, centred on the origin, the long side along Y. Measured from Adafruit's

published model (MIT); see the README.

"""

from steve import Model

thickness = 1.57 # mm Plate thickness

# mm, measured on Adafruit's model "5128 MacroPad RP2040-Keyplate.step" (its mid-thickness section, every edge read):

PLATE = {

"width": 59.69, # X (2.35 in)

"length": 78.74, # Y (3.1 in)

"corner_r": 2.54, # outside corner radius (0.1 in)

"cutout": 14.224, # square switch cut-out (0.56 in)

"pitch": 19.05, # cut-out centre pitch, both ways (0.75 in)

"columns": 3, # across X

"rows": 4, # along Y

}

p = PLATE

w, l, r = p["width"], p["length"], p["corner_r"]

x, y = w / 2, l / 2

model = Model()

with model.sketch("plate_sketch", on="XY", name="Plate") as sk:

sk.line("bottom", (-x + r, -y), (x - r, -y))

sk.arc("corner_1", (x - r, -y + r), r, 270, 360)

sk.line("right", (x, -y + r), (x, y - r))

sk.arc("corner_2", (x - r, y - r), r, 0, 90)

sk.line("top", (x - r, y), (-x + r, y))

sk.arc("corner_3", (-x + r, y - r), r, 90, 180)

sk.line("left", (-x, y - r), (-x, -y + r))

sk.arc("corner_4", (-x + r, -y + r), r, 180, 270)

model.extrude("plate", "plate_sketch", distance=thickness, name="Plate")

with model.sketch("cutout_sketch", on="XY", name="Switch cut-outs") as sk:

for i in range(p["columns"]):

for j in range(p["rows"]):

cx = (i - (p["columns"] - 1) / 2) * p["pitch"]

cy = (j - (p["rows"] - 1) / 2) * p["pitch"]

sk.center_rect(f"cutout_{i}_{j}", (cx, cy), p["cutout"], p["cutout"])

model.extrude("cutouts", "cutout_sketch", distance=thickness, op="cut", name="Switch cut-outs")

result = model.result()

"""Key plate of the Adafruit MacroPad RP2040 kit (Adafruit product 5128): a 59.69 x 78.74 mm plate with rounded
corners and a 3 x 4 grid of 14.224 mm square key switch cut-outs at 19.05 mm (0.75 in) pitch.

The plate lies on the XY plane from z = 0, centred on the origin, the long side along Y. Measured from Adafruit's
published model (MIT); see the README.
"""
from steve import Model

thickness = 1.57  # mm Plate thickness

# mm, measured on Adafruit's model "5128 MacroPad RP2040-Keyplate.step" (its mid-thickness section, every edge read):
PLATE = {
    "width": 59.69,       # X (2.35 in)
    "length": 78.74,      # Y (3.1 in)
    "corner_r": 2.54,     # outside corner radius (0.1 in)
    "cutout": 14.224,     # square switch cut-out (0.56 in)
    "pitch": 19.05,       # cut-out centre pitch, both ways (0.75 in)
    "columns": 3,         # across X
    "rows": 4,            # along Y
}

p = PLATE
w, l, r = p["width"], p["length"], p["corner_r"]
x, y = w / 2, l / 2
model = Model()
with model.sketch("plate_sketch", on="XY", name="Plate") as sk:
    sk.line("bottom", (-x + r, -y), (x - r, -y))
    sk.arc("corner_1", (x - r, -y + r), r, 270, 360)
    sk.line("right", (x, -y + r), (x, y - r))
    sk.arc("corner_2", (x - r, y - r), r, 0, 90)
    sk.line("top", (x - r, y), (-x + r, y))
    sk.arc("corner_3", (-x + r, y - r), r, 90, 180)
    sk.line("left", (-x, y - r), (-x, -y + r))
    sk.arc("corner_4", (-x + r, -y + r), r, 180, 270)
model.extrude("plate", "plate_sketch", distance=thickness, name="Plate")
with model.sketch("cutout_sketch", on="XY", name="Switch cut-outs") as sk:
    for i in range(p["columns"]):
        for j in range(p["rows"]):
            cx = (i - (p["columns"] - 1) / 2) * p["pitch"]
            cy = (j - (p["rows"] - 1) / 2) * p["pitch"]
            sk.center_rect(f"cutout_{i}_{j}", (cx, cy), p["cutout"], p["cutout"])
model.extrude("cutouts", "cutout_sketch", distance=thickness, op="cut", name="Switch cut-outs")
result = model.result()

pypart.toml 29 lines · TOML

Download

name = "steve/macropad-keyplate"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "Adafruit MacroPad RP2040 key plate (product 5128): 3 x 4 switch cut-outs, measured from Adafruit's published model."

description = """The key plate of the Adafruit MacroPad RP2040 kit (Adafruit product 5128): a 59.69 x 78.74 mm plate \

with 2.54 mm corner radii and a 3 x 4 grid of 14.224 mm square key switch cut-outs at 19.05 mm pitch. Measured from \

Adafruit's published 3D model (Adafruit_CAD_Parts, MIT, (c) Adafruit Industries); Adafruit publishes no dimensioned \

drawing of it.

On the XY plane from z = 0, centred on the origin, the long side along Y. Not affiliated with or endorsed by Adafruit."""

tags = ["keyboard", "key-plate", "macropad", "adafruit", "mx-switch", "electronics", "plate"]

[parameters.thickness]

type = "number"

default = 1.57

min = 0.5

max = 5

unit = "mm"

label = "Plate thickness"

description = "1.57 mm (a 1.6 mm board) in Adafruit's model."

[[presets]]

id = "5128-keyplate"

title = "Adafruit MacroPad RP2040 key plate (5128)"

params = { thickness = 1.57 }

aliases = ["MacroPad key plate", "MacroPad RP2040 keyplate", "Adafruit 5128 key plate", "3x4 MX switch plate", "Adafruit 5128"]

standard = "Adafruit 5128 model"

name = "steve/macropad-keyplate"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Adafruit MacroPad RP2040 key plate (product 5128): 3 x 4 switch cut-outs, measured from Adafruit's published model."
description = """The key plate of the Adafruit MacroPad RP2040 kit (Adafruit product 5128): a 59.69 x 78.74 mm plate \
with 2.54 mm corner radii and a 3 x 4 grid of 14.224 mm square key switch cut-outs at 19.05 mm pitch. Measured from \
Adafruit's published 3D model (Adafruit_CAD_Parts, MIT, (c) Adafruit Industries); Adafruit publishes no dimensioned \
drawing of it.

On the XY plane from z = 0, centred on the origin, the long side along Y. Not affiliated with or endorsed by Adafruit."""
tags = ["keyboard", "key-plate", "macropad", "adafruit", "mx-switch", "electronics", "plate"]

[parameters.thickness]
type = "number"
default = 1.57
min = 0.5
max = 5
unit = "mm"
label = "Plate thickness"
description = "1.57 mm (a 1.6 mm board) in Adafruit's model."

[[presets]]
id = "5128-keyplate"
title = "Adafruit MacroPad RP2040 key plate (5128)"
params = { thickness = 1.57 }
aliases = ["MacroPad key plate", "MacroPad RP2040 keyplate", "Adafruit 5128 key plate", "3x4 MX switch plate", "Adafruit 5128"]
standard = "Adafruit 5128 model"

README.md 42 lines · Markdown

Download

Adafruit MacroPad RP2040 key plate

The key plate of the Adafruit MacroPad RP2040 kit (Adafruit product 5128, https://www.adafruit.com/product/5128): a plate with rounded corners and a 3 × 4 grid of square key switch cut-outs. Not affiliated with or endorsed by Adafruit.

Geometry

On the XY plane from z = 0, centred on the origin, the long side along Y.

Feature	mm
Plate	59.69 × 78.74 (2.35 × 3.1 in)
Thickness	1.57 (the model's; parameter)
Corner radius	2.54
Switch cut-outs	3 × 4, 14.224 square (0.56 in)
Cut-out pitch	19.05 (0.75 in) both ways, grid centred

Parameters

Parameter	Meaning
`thickness`	plate thickness, mm

No material is assigned (the model names none).

Sources

Adafruit publishes a 3D model of the plate but no dimensioned drawing. The geometry was measured from the published reference model below (its largest face gives the plate's plane, its extent across it the thickness; the outline of its mid-thickness section was read edge by edge), and the preset is checked against it: bounding box within 0.05 mm and volume within 2 %.

Adafruit_CAD_Parts, 5128 MacroPad RP2040 Kit/5128 MacroPad RP2040-Keyplate.step (commit 5ead410a, added by Noe Ruiz), https://github.com/adafruit/Adafruit_CAD_Parts, © 2016 Adafruit Industries, MIT licence (the repository's LICENSE). Distributed by step.parts as adafruit_5128_macropad_rp2040_keyplate.

Simplifications: three of the model's cut-outs have one corner rounded to 0.254 mm (a modelling artefact; 0.07 mm³ in all): all cut-outs are drawn square.

Preset list: from the step.parts catalogue (MIT), see library/NOTICE.md.

# Adafruit MacroPad RP2040 key plate

The key plate of the Adafruit MacroPad RP2040 kit (Adafruit product 5128,
https://www.adafruit.com/product/5128): a plate with rounded corners and a 3 × 4 grid of square key switch cut-outs.
Not affiliated with or endorsed by Adafruit.

## Geometry

On the XY plane from z = 0, centred on the origin, the long side along Y.

| Feature | mm |
|---|---|
| Plate | 59.69 × 78.74 (2.35 × 3.1 in) |
| Thickness | 1.57 (the model's; parameter) |
| Corner radius | 2.54 |
| Switch cut-outs | 3 × 4, 14.224 square (0.56 in) |
| Cut-out pitch | 19.05 (0.75 in) both ways, grid centred |

## Parameters

| Parameter | Meaning |
|---|---|
| `thickness` | plate thickness, mm |

No material is assigned (the model names none).

## Sources

Adafruit publishes a 3D model of the plate but no dimensioned drawing. **The geometry was measured from the published
reference model** below (its largest face gives the plate's plane, its extent across it the thickness; the outline
of its mid-thickness section was read edge by edge), and the preset is checked against it: bounding box within
0.05 mm and volume within 2 %.

- **Adafruit_CAD_Parts**, `5128 MacroPad RP2040 Kit/5128 MacroPad RP2040-Keyplate.step` (commit 5ead410a, added by
  Noe Ruiz), https://github.com/adafruit/Adafruit_CAD_Parts, © 2016 Adafruit Industries, **MIT** licence
  (the repository's LICENSE). Distributed by step.parts as `adafruit_5128_macropad_rp2040_keyplate`.

Simplifications: three of the model's cut-outs have one corner rounded to 0.254 mm (a modelling artefact; 0.07 mm³ in
all): all cut-outs are drawn square.

Preset list: from the step.parts catalogue (MIT), see `library/NOTICE.md`.

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/macropad-keyplate/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/macropad-keyplate/1.0.0"

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

About this part

steve58 parts

Profile

License: MIT

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

Runtime: STEVE
Built with: CadQuery 2.9.0.dev0
Published: Nov 1, 2026
Downloads: 0
Builds: 0
Stars: 0
Bundle: f8e65e73035b…

#keyboard #key-plate #macropad #adafruit #mx-switch #electronics #plate

Checks

PassedImports: steve

Every published part passes our checks before it’s listed. It is still code: read it before you use it.

Request a removal A copyright notice, or a trademark, confidential design, safety, malicious code or other problem. Report an illegal or prohibited item

The key plate of the Adafruit MacroPad RP2040 kit (Adafruit product 5128): a 59.69 x 78.74 mm plate with 2.54 mm corner radii and a 3 x 4 grid of 14.224 mm square key switch cut-outs at 19.05 mm pitch. Measured from Adafruit's published 3D model (Adafruit_CAD_Parts, MIT, (c) Adafruit Industries); Adafruit publishes no dimensioned drawing of it. On the XY plane from z = 0, centred on the origin, the long side along Y. Not affiliated with or endorsed by Adafruit.

Adafruit MacroPad RP2040 key plate

Geometry

On the XY plane from z = 0, centred on the origin, the long side along Y.

Feature	mm
Plate	59.69 × 78.74 (2.35 × 3.1 in)
Thickness	1.57 (the model's; parameter)
Corner radius	2.54
Switch cut-outs	3 × 4, 14.224 square (0.56 in)
Cut-out pitch	19.05 (0.75 in) both ways, grid centred

Parameters

Parameter	Meaning
`thickness`	plate thickness, mm

No material is assigned (the model names none).

Sources

Adafruit_CAD_Parts, 5128 MacroPad RP2040 Kit/5128 MacroPad RP2040-Keyplate.step (commit 5ead410a, added by Noe Ruiz), https://github.com/adafruit/Adafruit_CAD_Parts, © 2016 Adafruit Industries, MIT licence (the repository's LICENSE). Distributed by step.parts as adafruit_5128_macropad_rp2040_keyplate.

Simplifications: three of the model's cut-outs have one corner rounded to 0.254 mm (a modelling artefact; 0.07 mm³ in all): all cut-outs are drawn square.

Preset list: from the step.parts catalogue (MIT), see library/NOTICE.md.

1.0.0 Latest Nov 1, 2026 · 1 day ago

More #keyboard

STEVEMIT

steve/plate

Rectangular plate blank, any width, length and thickness, in common plate and sheet materials.

4 45 sizes 0 1 day ago v1.0.0

STEVEMIT

steve/round-spacer

Round unthreaded clearance spacer for M3 screws (Harwin R30-601): Ø4.76 × Ø3.30, any length.

0 9 sizes 0 1 day ago v1.0.0

STEVEMIT

steve/pcb-card-guide

PCB card guide and board retaining clip, boards 1 to 2.4 mm, any length: simplified, measured from step.parts' models.

0 50 sizes 0 1 day ago v1.0.0

STEVEMIT

steve/pcb-support

PCB support post (snap-in, adhesive-backed, swage, press-fit), M2 to M4, any height: simplified, measured from step.parts' models.

0 128 sizes 0 1 day ago v1.0.0

steve/macropad-keyplate

Adafruit MacroPad RP2040 key plate

Geometry

Parameters

Sources

Adafruit MacroPad RP2040 key plate

Geometry

Parameters

Sources

Related parts

steve/plate

steve/round-spacer

steve/pcb-card-guide

steve/pcb-support