Prime Maxel v3
nagapi2357-ui·Prime_Maxel-v3
About the Prime Maxel v3 PCB
Prime Maxel v3 is an open source PCB design by nagapi2357-ui, published on GitHub under the CC-BY-SA-4.0 license. It is a 4-layer board measuring 205 × 150 mm, with 96 components from 13 distinct parts.
Other key parts include the TCA9548APWR, LM324DRE4 and SLG47004V. By type, the board carries 37 capacitors, 26 resistors, 25 ICs and 8 connectors.
From the project
V3 torsion ring PCB — original experiment showed apparent prime-ratio advantages, but a subsequent pre-registered replication (Plan C, pure sine waves) returned null on 7/8 metrics. V3 effects attributed to square-wave harmonic confound. See CORRIGENDUM. KiCad 9.
~~First experimental evidence that prime-ratio frequency networks outperform composite-ratio networks in a physical resonator.~~
Published: Zenodo DOI 10.5281/zenodo.20637347
PrimeMaxel-v3 is a 12-cell torsion resonator ring built to test whether prime-ratio frequency relationships produce measurably different coupling behaviour compared to composite ratios. Each cell pairs a SLG47004V GreenPAK mixed-signal IC with an LM324 op-amp, connected via twin shared copper torsion traces on a 4-layer PCB fabricated by JLCPCB. An Arduino Mega 2560 generates six independent square-wave channels using…

Main components on the Prime Maxel v3
Prime Maxel v3 bill of materials (BOM)
96 components, 13 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TCA9548APWR | TSSOP-24_4.4x7.8mm_P0.65mm | U1 |
| 12 | LM324DRE4 | LM324DRE4-SOIC127P600X175-14N | U2, U4, U6, U8, U10, U12, U14, U16 +4 |
| 12 | SLG47004V | SLG47004V-STQFN-24-3.0X3.0-A | U3, U5, U7, U9, U11, U13, U15, U17 +4 |
| 1 | EJ503A | MPD_EJ503A | J1 |
| 1 | PWM | PinSocket_1x10_P2.54mm_Vertical | J2 |
| 1 | Power | PinSocket_1x08_P2.54mm_Vertical | J3 |
| 2 | Analog | PinSocket_1x08_P2.54mm_Vertical | J4, J6 |
| 1 | PWM | PinSocket_1x08_P2.54mm_Vertical | J5 |
| 1 | Communication | PinSocket_1x08_P2.54mm_Vertical | J7 |
| 1 | Digital | PinSocket_2x18_P2.54mm_Vertical | J8 |
| 1 | 100U 100u | CP_Elec_6.3x7.7 | C1 |
| 36 | 0.1U 0.1u | C_0603_1608Metric | C2, C3, C4, C5, C6, C7, C8, C9 +28 |
| 26 | 10K 10k | R_0402_1005Metric | R1, R2, R3, R4, R5, R6, R7, R8 +18 |
Prime Maxel v3 design files
The KiCad project lives in the nagapi2357-ui/Prime_Maxel-v3 repository on GitHub; these links point at the commit this page was built from.
Prime Maxel v3: common questions
How big is the Prime Maxel v3 PCB?
The Prime Maxel v3 measures 205 × 150 mm, has 4 copper layers and is 1.604 mm thick.
How many components are on the Prime Maxel v3?
96 components, from 13 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 Prime Maxel v3 design files?
From the nagapi2357-ui/Prime_Maxel-v3 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 Prime Maxel v3 design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which nagapi2357-ui chose for the repository.