2 layers27.9 × 16.5 mm
2 layers63.8 × 30.5 mm
Lc-0
mmalecki/lc-0A simple, switch-based launch controller for model rockets
- Size
- 63.8 × 30.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 8
- Pads
- 28
- Tracks, vias
- 28, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 24 Apr 2022
- Updated
- 24 Jun 2023
Overview
Lc-0 is an open-source printed circuit board by mmalecki, from the mmalecki/lc-0 repository on GitHub. It is a 2-layer board of 63.8 × 30.5 mm with 18 parts on 8 nets, routed with 28 tracks and 0 vias.
Its parts include 2 capacitors, 1 diode and 1 fuse.
README
README.mdLaunch Controller 0
Simple switch-based model rocket launcher. When I say simple, I mean it!
Continuity checking? Yeah, sure, I'll tell you I've heard about it.
Keyed arm switch? Right, as if I had any keys laying around doing NOTHING.
I mean, frankly, the thing doesn't even have space for batteries in its enclosure.
On the other hand, its most complicated components is probably the LED telling you the launcher is receiving power. (What, were you hoping for a switch?)
You can load a larger capacitor in there to fire a cluster of rockets with a 9 V battery, and the 2 mm traces should withstand about anything.
Building
First, clone this repository:
git clone https://github.com/mmalecki/lc-0
cd lc-0
git submodule update --init- Open the KiCAD project in the
electronicsdirectory. Get the PCB made (one-sided is all that's needed here). - Render and 3D print the files in
enclosure.
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Conn_01x01 | Connector_Wire:SolderWire-1.5sqmm_1x01_D1.7mm_OD3.9mm | IGNITER-1, IGNITER+1, J+9.6V1, JGND1 |
| 4 | MountingHole_3.2mm_M3_DIN965_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | M3, M3, M3, M3 |
| 2 | 360 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | RLEDARMED1, RLEDPOWER1 |
| 2 | 470 uF | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C1, C2 |
| 2 | LED | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | ARMED1, POWER1 |
| 1 | D_Schottky | Diode_THT:D_DO-201AD_P15.24mm_Horizontal | D1 |
| 1 | Fuse | Fuse:Fuseholder_Cylinder-5x20mm_Bulgin_FX0457_Horizontal_Closed | F1 |
| 1 | SW_Push | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | LAUNCH1 |
| 1 | SW_SPST | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | ARM1 |
Questions
How big is the Lc-0 PCB?
It measures 63.8 × 30.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lc-0 use?
18 parts. 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 Lc-0 KiCad files?
From the mmalecki/lc-0 repository on GitHub, at the commit this page was made from: the board is electronics/lc-0.kicad_pcb and its schematic electronics/lc-0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lc-0 design in my own project?
Its repository states no licence, so its author keeps all rights: ask mmalecki before reusing the design.
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