Skip to the content
2 layers29.2 × 109.2 mmSkis, the printed circuit board in 3D

The SMD, 6HP version of Bastl Skis. Includes sliders :)

Size
29.2 × 109.2 mm
Copper layers
2
Thickness
1.6 mm
Parts
96
Nets
76
Pads
280
Tracks, vias
866, 115
Pours
2
Routed
Yes
KiCad
KiCad 5 (file 20171130)
Created
29 Jan 2020
Updated
10 Sep 2021

Overview

Skis is an open-source printed circuit board by kraakenstuff, from the kraakenstuff/Skis repository on GitHub. It is a 2-layer board of 29.2 × 109.2 mm with 96 parts on 76 nets, routed with 866 tracks and 115 vias.

It is built around the LM13700M, BS170FTA and MMBT3904, with the MMBT3906 among its other parts. Its parts include 38 resistors, 18 capacitors, 11 connectors, 10 transistors and 4 diodes.

Main components

4

README

README.md

Skis

This is smd version of Bastl Skis v1. Main differences are:

  • It has skis (two sliders) vs. no skis in Bastl version
  • 6HP vs. 5HP, for obvious, OCD reasons
  • Range switch vs. range backside jumper (although this switch works as a jumper - instead of going from freq0 to freq1, and then from freq1 to freq2 in the second position, it goes from freq0 to freq1, and then from freq0 to freq2)
  • Version 2 of Bastl Skis has decay CV input, and this one doesn't have it
  • Version 1 of Bastl Skis was THT and had two sandwiched boards, and this one is SMT in one board.

Status: tested and working.

CC-BY-SA Václav Peloušek bastl-instruments.com

Parts

96
QtyValueFootprintReferences
161kResistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolderR3, R4, R10, R12, R13, R17, R18, R19, R22, R23, R29, R31, R32, R36, R37, R38
14100kResistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolderR1, R2, R5, R6, R8, R9, R15, R20, R21, R24, R25, R27, R28, R34
8100nCapacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolderC7, C8, C9, C10, C11, C12, C13, C14
6BS170FPackage_TO_SOT_SMD:SOT-23Q1, Q2, Q5, Q6, Q7, Q10
410kResistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolderR7, R14, R26, R33
410nCapacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolderC1, C2, C15, C16
410uCapacitor_SMD:CP_Elec_5x5.8C4, C5, C6, C18
21N4148Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolderD1, D5
21N5819Diode_SMD:D_SOD-123D3, D4
21uCapacitor_SMD:CP_Elec_4x5.8C3, C17
247kResistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolderR11, R30
24k7Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolderR16, R35
2500kKraakenStuff:PTL30RV1, RV2
2MMBT3904Package_TO_SOT_SMD:SOT-23Q4, Q9
2MMBT3906Package_TO_SOT_SMD:SOT-23Q3, Q8
2MUTEKraakenStuff:Header 1x2JP3, JP6
2TL074Package_SO:SSOP-14_5.3x6.2mm_P0.65mmU1, U3
1CRUNCH_AKraakenStuff:SubSwitch_SPDTSW1
1CRUNCH_BKraakenStuff:SubSwitch_SPDTSW3
1CV_IN_AKraakenStuff:PJ301M-12-NoHoleJ2
1CV_IN_BKraakenStuff:PJ301M-12-NoHoleJ8
1ENV_OUT_AKraakenStuff:PJ301M-12-NoHoleJ5
1ENV_OUT_BKraakenStuff:PJ301M-12-NoHoleJ11
1EuroPowerKraakenStuff:EuroHeader10J6
1HOLD_AKraakenStuff:Header 1x2JP2
1HOLD_BKraakenStuff:Header 1x2JP5
1LM13700Package_SO:SOIC-16W_5.3x10.2mm_P1.27mmU2
1LO_FI_FILTER_AKraakenStuff:Header 1x2JP1
1LO_FI_FILTER_BKraakenStuff:Header 1x2JP4
1SIGNAL_IN_AKraakenStuff:PJ301M-12-NoHoleJ3
1SIGNAL_IN_BKraakenStuff:PJ301M-12-NoHoleJ9
1SIGNAL_OUT_AKraakenStuff:PJ301M-12-NoHoleJ4
1SIGNAL_OUT_BKraakenStuff:PJ301M-12-NoHoleJ10
1SPEED_AKraakenStuff:SubSwitch_SPDTSW2
1SPEED_BKraakenStuff:SubSwitch_SPDTSW4
1TRIG_AKraakenStuff:PJ301M-12-NoHoleJ1
1TRIG_BKraakenStuff:PJ301M-12-NoHoleJ7

Similar boards

  • 2 layers100 × 110 mmLFO, the printed circuit board in 3D

    LFO

    BruteClaw/Analog-Synth

    EuroRack sytle analog synthasizer designs

    79 parts10GPL-3.0
  • 2 layers80.9 × 108.2 mmVca, the printed circuit board in 3D

    Vca

    spielhuus/elektrophon

    Modular analog electro acoustic noise machine.

    179 parts32
  • 2 layers48.3 × 99.1 mmModulation source, the printed circuit board in 3D

    Modulation source

    JordanAceto/modulation_source

    Eurorack compatible pcb with sine/square VCLFO, white and pink noise, and sample & hold

    95 parts6
  • 4 layers81.3 × 108 mmMyriad 0.4, the printed circuit board in 3D

    Myriad 0.4

    Emute-Lab-Instruments/Myriad

    Sources for Emute Lab Instruments Myriad eurorack module

    185 parts2MIT
  • 4 layers40.5 × 100 mmVcafd, the printed circuit board in 3D

    Vcafd

    GuavTek/ACID_VCA

    A eurorack VCA with a wavefolder and drive/clipping

    223 parts1CERN-OHL-W-2.0
  • 2 layersVca mix, the printed circuit board in 3D

    Vca mix

    sgreene30/Synthesis-Projects

    190 parts

Questions

How big is the Skis PCB?

It measures 29.2 × 109.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Skis use?

96 parts, built around the LM13700M, BS170FTA, MMBT3904 and MMBT3906. 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 Skis KiCad files?

From the kraakenstuff/Skis repository on GitHub, at the commit this page was made from: the board is Skis.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Skis design in my own project?

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