OG Star Tracker V2 KIT ONLY
This kit is without filament and includes only hardware parts.
In the package:
| M3x40 socket bolt |
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4 |
| M3x6 socket bolt |
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2 |
| M3x20 socket bolt |
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8 |
| M5x25 socket bolt |
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1 |
| M5x50 Hex head |
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2 |
| M5 ptfe washer |
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1 |
| M3x8 socket bolt |
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40 |
| M3x16 socket bolt |
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4 |
| M5x20 Low profile socket bolt |
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1 |
| ¼-20×1/2” UNC Hex head |
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1 |
| m3 threaded insert |
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60 |
| m5 threaded insert |
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5 |
| 3/8 threaded insert |
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1 |
| M3 nut |
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3 |
| M5 nut |
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3 |
| M5 self-tightening nuts |
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2 |
| ¼-20 UNC to 3/8-20 UNC adapter |
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2 |
| AXK 5070 needle bearing |
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2 |
| AS 5070 Axial bearing washer |
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4 |
| KU 5025 plain bearing |
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1 |
| GT2 16 teeth pulley |
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3 |
| GT2 48 teeth pulley |
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2 |
| GT2 20 teeth idler |
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1 |
| GT2 120mm belt |
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2 |
| GT2 400mm belt |
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1 |
| 5x50mm shaft |
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2 |
| M5x95mm rod |
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1 |
| M5x135mm rod |
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1 |
| 625 bearing |
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10 |
| Round bubble level 12x7mm |
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1 |
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| 4mm hex key |
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1 |
| 2.5mm hex key |
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1 |
| grease, ptfe based |
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1 |
| glue |
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1 |
| 2mm hex key |
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1 |
| Round magnet 10x3mm |
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4 |
| Round magnet 5x5mm |
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2 |
| PCB |
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1 |
| Stepper motor |
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1 |
| cable for stepper motor |
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1 |
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Lightweight & portable design built for travel rigs and quick setups
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High tracking accuracy with 10″–15″ periodic error, enabling longer exposures without an autoguider (especially at modest focal lengths)
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Sturdy and stable payload handling
- Supports 4kg imaging gear (with up to 5kg total payload noted)
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Easy polar alignment via laser
- Aim the laser at Polaris for fast alignment—no polar scope required
- Modular option to swap between laser and polar scope depending on preference
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Modular & customizable ecosystem
- Add a ball head
- Upgrade with a manual declination axis
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Manual GOTO ready for quick target positioning workflows
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Advanced camera control
- Built-in intervalometer port plus dithering support to help reduce pattern noise in stacked images
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Time-lapse panning for cinematic night-sky motion sequences
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Field-friendly details you’ll actually use
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Integrated bubble level for faster leveling and alignment
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Open-source design: parts are open source for transparency, tinkering, and long-term serviceability
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Simple power requirements: run it from a common 5V power bank
Specifications(When Assembled)
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Model: OG Star Tracker V2
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Tracking accuracy (periodic error): 10″–15″
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Imaging payload (rated): 4 kg (also noted: 5 kg total payload)
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Max recommended focal length: 400 mm
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Control: Via app or phone web app
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Power: 5V, 1A (power bank)
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Motor: 0.9° stepper motor with TMC2209 driver
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Build material: ABS-GF and ABS
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Dimensions: 17.5 × 19 × 11.5 cm
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Intervalometer port: 2.5mm jack
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Polar alignment method: Laser
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AZ adjustment range: 50°
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Latitude range (listed): 90° to -25° and 25° to 90° (latitude adjustment range noted as -25°, 25°–90°)
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Weight (listed): 1.4 kg (also noted: 1.9 kg)
