2 layers66.9 × 74.5 mm
2 layers91.4 × 71.1 mm
Startracker
dkm/startracker4Everything needed for building a simple Barndoor Tracker used for long exposure photograpy of stars.
- Size
- 91.4 × 71.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 38
- Pads
- 100
- Tracks, vias
- 206, 2
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 24 Feb 2018
- Updated
- 28 Aug 2019
Overview
Startracker is an open-source printed circuit board by dkm, from the dkm/startracker repository on GitHub. It is a 2-layer board of 91.4 × 71.1 mm with 20 parts on 38 nets, routed with 206 tracks and 2 vias.
Its parts include 7 connectors, 1 capacitor and 1 switch. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdElectronic
- prototype on breadboard:
- power motor and arduino from 12V
- use button and endstop to do a reset
- finish PCB design
- create PCB (engrave, drill, solder)
- test PCB
3D printing
gears
- remodel gears
- print gears
- test gears
laser
- remodel laser holder
- print laser holder
- test laser holder : Laser not powerful enough
rod holder
- remodel rod holder
- print rod holder
- test rod holder
model a box
- model a box
- print box
- assemble/test box
Mecanics
- plan for assembly
- assemble
Software
- first proto that only drive the gear
- second proto that can do reset
general
- test : works, but still some fine tuning to do.
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | R | Resistors_ThroughHole:Resistor_Horizontal_RM7mm | R_ENDSW1, R2, R3, R4 |
| 2 | CONN_01X02 | Pin_Headers:Pin_Header_Straight_1x02 | J6, J7 |
| 2 | CONN_01X04 | Pin_Headers:Pin_Header_Straight_1x04 | J3, J4 |
| 1 | Arduino_Nano_v3.x | Modules:Arduino_Nano_WithMountingHoles | A1 |
| 1 | C | Capacitors_ThroughHole:C_Radial_D8_L11.5_P3.5 | C1 |
| 1 | CONN_01X03_VIN | Connectors_JST:JST_PH_B3B-PH-K_03x2.00mm_Straight | J1 |
| 1 | CONN_02X02 | Pin_Headers:Pin_Header_Straight_2x02 | J2 |
| 1 | CONN_02X04 | Pin_Headers:Pin_Header_Straight_2x04 | LCD1 |
| 1 | ENDSW_CONN | Pin_Headers:Pin_Header_Straight_1x02 | J5 |
| 1 | Pololu_Breakout_DRV8825 | Modules:Pololu_Breakout-16_15.2x20.3mm | A2 |
| 1 | Rotary_Encoder_Switch | sparkfun:SF-ROTARY-ENCODER | SW1 |
The 16 most common of 20 parts.
Questions
How big is the Startracker PCB?
It measures 91.4 × 71.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Startracker use?
20 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 Startracker KiCad files?
From the dkm/startracker repository on GitHub, at the commit this page was made from: the board is kicad/startracker.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Startracker design in my own project?
Its repository states no licence, so its author keeps all rights: ask dkm before reusing the design.
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