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2 layers110 × 94 mmAkira board, the printed circuit board in 3D

Trackball Inspired by Akira's explosion

Size
110 × 94 mm
Copper layers
2
Thickness
1.6 mm
Parts
68
Nets
64
Pads
239
Tracks, vias
847, 114
Pours
4
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
6 Mar 2023
Updated
10 Jun 2026

Overview

Akira board is an open-source printed circuit board by MeltedIceCubes, from the MeltedIceCubes/Akira_Ball repository on GitHub. It is a 2-layer board of 110 × 94 mm with 68 parts on 64 nets, routed with 847 tracks and 114 vias.

It is built around the SN74LVC1T45DCK and TPS73601DBV. Its parts include 21 resistors, 11 capacitors, 2 ICs, 2 diodes and 1 crystal. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

2

README

README.md

Current Target

  • 2025/03/06
    • Lock down a basic functioning design.

Ideas

  • Sheet metal manufacturing?
  • CNC Aluminum?

PCB Parts

Parts

68
QtyValueFootprintReferences
7MountingHole_PadAkiraBallParts:M2 Mounting HoleH1, H2, H3, H4, H5, H6, H7
6100nFCapacitor_SMD:C_0603_1608MetricC4, C5, C6, C8, C9, C11
5D_SmallDiode_SMD:D_SOD-123D_I_1, D_I_2, D_I_3, D_I_4, D_I_5
4Kailh_MicroSwitchAkira_Ball_Parts:GM8.0SW_M_1_1, SW_M_1_2, SW_M_2_1, SW_M_2_2
4SN74LVC1T45DCKPackage_TO_SOT_SMD:SOT-363_SC-70-6LS1, LS2, LS3, LS4
32RResistor_SMD:R_0603_1608MetricR1_9, R1_10, R1_11
2H8, H9
210KResistor_SMD:R_0603_1608MetricR1, R6
210kResistor_SMD:R_0603_1608MetricR1_6, R1_8
212pCapacitor_SMD:C_0603_1608MetricC1, C2
220RResistor_SMD:R_0603_1608MetricR1_12, R1_13
23.6VDiode_SMD:D_SOD-123D1, D2
24.7KResistor_SMD:R_0603_1608MetricR2_1, R2_2
24.7uFCapacitor_SMD:C_0805_2012MetricC10, C12
247RResistor_SMD:R_0603_1608MetricR1_3, R1_4
25.1kResistor_SMD:R_0603_1608MetricR1_1, R1_2
27.5KResistor_SMD:R_0603_1608MetricR2, R5
2SWAkira_Ball_Parts:Switch SMD-4P,5.1x5.1mmU1, U2
11.5kResistor_SMD:R_0603_1608MetricR1_5
11uFCapacitor_SMD:C_0603_1608MetricC7
130KResistor_SMD:R_0603_1608MetricR3
133RResistor_SMD:R_0603_1608MetricR1_7
156KResistor_SMD:R_0603_1608MetricR4
1ATMEGA328P-PU-NDAkiraBallParts:DIP-28_AtMega328PUATMEGA328P1
1AVR-ISP-6AkiraBallParts:SKEDD_6PinConnectingHoleISP1
1Crystal_GND24Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mmY2
1PolyfuseFuse:Fuse_0805_2012MetricF1
1Rotary_EncoderAkiraBallParts:Encoder_RingSCROLL_RING1
1TPS73601DBVPackage_TO_SOT_SMD:SOT-23-5VR1
1USB_C_Receptacle_USB2.0Akira_Ball_Parts:USB_C_16P_SMD_C3025063USB1
1Volume_KnobAkira_Ball_Parts:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mmKNOB1
1~Akira_Ball_Parts:PMW3360_2PMW3360
1~AkiraBallParts:OLED_PinHeader_1x04_P2.54mmOLED1

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Questions

How big is the Akira board PCB?

It measures 110 × 94 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Akira board use?

68 parts, built around the SN74LVC1T45DCK and TPS73601DBV. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Akira board KiCad files?

From the MeltedIceCubes/Akira_Ball repository on GitHub, at the commit this page was made from: the board is Akira_board.kicad_pcb and its schematic Akira_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Akira board design in my own project?

Its repository states no licence, so its author keeps all rights: ask MeltedIceCubes before reusing the design.