Crimps
About the Crimps PCB
Crimps is an open source PCB design by kstammits, published on GitHub. It is a 2-layer board measuring 20 × 128.5 mm, with 81 components from 24 distinct parts.
Other key parts include the TL074, TL072 and OPA4171. By type, the board carries 32 resistors, 18 connectors, 12 diodes, 12 capacitors, 3 ICs and 3 transistors.
From the project
Mutated Kinks = Karltron Crimps
Originally cloning Mutable Instruments' Kinks https://github.com/pichenettes/eurorack Transferring from EAGLE to KiCad and updating from 0402 to 0805 construction means basically the whole thing is rewritten from scratch. The PCB is therefore unrelated to Kinks: Crimps is a karltron design 2021.
On the internet forums, someone else has mentioned started a THT version, asking about it but not shared yet because reasons. https://modwiggler.com/forum/viewtopic.php?p=3644155
Main components on the Crimps
Crimps bill of materials (BOM)
81 components, 24 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL074 | SOIC-14_3.9x8.7mm_P1.27mm | IC1 |
| 1 | TL072 | SOIC-8_3.9x4.9mm_P1.27mm | IC2 |
| 1 | OPA4171 | SOIC-14_3.9x8.7mm_P1.27mm | IC3 |
| 1 | MMBFJ309 | SOT-23_Handsoldering | Q1 |
| 2 | MMBT3904 | SOT-23_Handsoldering | Q2, Q3 |
| 12 | PJ301_THONKICONN6 | WQP_PJ_301M6 | J1, J2, J3, J4, J5, J6, J7, J8 +4 |
| 3 | Conn_01x05_Female | PinHeader_1x05_P2.54mm_Vertical | J13, J14, J15 |
| 3 | Conn_01x05_Male | PinHeader_1x05_P2.54mm_Vertical | J16, J17, J18 |
| 1 | M05X2PTH | AVR_ICSP | JP1 |
| 2 | S1JL | D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 10 | 1N4148 | D_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D3, D4, D5, D6, D7, D8, D9, D10 +2 |
| 2 | 22u | CP_Radial_D6.3mm_P2.50mm | C1, C2 |
| 1 | 100p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 7 | 100n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C6, C7, C8, C9, C11 |
| 1 | 4.7u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10 |
| 1 | 10n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 7 | 180 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R8 |
| 7 | 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R14, R16, R17, R18, R28, R32 |
| 6 | 200k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R10, R11, R12, R13, R15 |
| 4 | 220k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R19, R20, R21, R22 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23, R25 |
| 3 | 1.0M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R24, R26, R29 |
| 2 | 470k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R27, R30 |
| 1 | 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R31 |
Crimps design files
The KiCad project lives in the kstammits/crimps repository on GitHub; these links point at the commit this page was built from.
- Layoutcrimps/k2.kicad_pcb
- Schematiccrimps/k2.kicad_sch
- BOMcrimps/bom/BOM.Guide.xlsx
Crimps: common questions
How big is the Crimps PCB?
The Crimps measures 20 × 128.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Crimps?
81 components, from 24 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 Crimps design files?
From the kstammits/crimps 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 Crimps design in my own project?
The repository has no license, so all rights stay with kstammits. Use it as a reference, and ask the author before reusing the design.
