HardLabs

Zx48-custom case keyboard

r0b0t1cu·zx48-custom-case-keyboard·ZX_Spectrum_Keyboard_PCB/ZX_Spectrum_Keyboard_PCB.kicad_pcb

Zx48-custom case keyboard PCB layout, top view — open source board by r0b0t1cu
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About the Zx48-custom case keyboard PCB

Zx48-custom case keyboard is an open source PCB design by r0b0t1cu, published on GitHub under the MIT license. It is a 2-layer board measuring 205.7 × 91.4 mm, with 41 components from 41 distinct parts.

It belongs with the keyboards and test & measurement designs in this gallery.

From the project

A custom 3D-printed case, keycap set, and keyboard PCB for the ZX Spectrum 48K.

A custom 3D-printed case, keycap set, and keyboard PCB for the ZX Spectrum 48K.

This started with a ULA chip I had sitting around doing nothing, and a friend who handed me a PABB Issue 3B PCB. One thing led to another, and the mainboard needed a case and a keyboard to go with it — so I designed both from scratch, along with a few other addons along the way.

The case is designed around the classic ZX Spectrum 48K PCB footprint and mounting hole layout. It's compatible with:

Zx48-custom case keyboard, from the project README
From the project README

Zx48-custom case keyboard bill of materials (BOM)

41 components, 41 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CONN_01X13
Conn_01x13
JKBD1
1
SPACE
K12
1
ENTER
K13
1
P
K14
1
0
K15
1
1
K16
1
Q
K17
1
A
K18
1
CS
K19
1
L
K20
1
O
K21
1
9
K22
1
2
K23
1
W
K24
1
S
K25
1
Z
K26
1
SS
K27
1
M
K28
1
K
K29
1
I
K30
Show 21 more
QtyPartRefs
1
8
K31
1
3
K32
1
E
K33
1
D
K34
1
X
K35
1
N
K36
1
J
K37
1
U
K38
1
7
K39
1
4
K40
1
R
K41
1
F
K42
1
C
K43
1
B
K44
1
H
K45
1
Y
K46
1
6
K47
1
5
K48
1
T
K49
1
G
K50
1
V
K51

Zx48-custom case keyboard design files

The KiCad project lives in the r0b0t1cu/zx48-custom-case-keyboard repository on GitHub; these links point at the commit this page was built from.

Zx48-custom case keyboard: common questions

How big is the Zx48-custom case keyboard PCB?

The Zx48-custom case keyboard measures 205.7 × 91.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Zx48-custom case keyboard?

41 components, from 41 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Zx48-custom case keyboard design files?

From the r0b0t1cu/zx48-custom-case-keyboard repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Zx48-custom case keyboard design in my own project?

Yes, under the terms of its MIT license, which r0b0t1cu chose for the repository.

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