Why choose OG star tracker
Compared to other trackers, OG star tracker utilizes belts, which are
commonly used in expensive mounts. They exhibit significantly smaller
periodic error than the worm gears employed by other star trackers,
resulting in improved tracking performance. Belts also eliminate
backlash and spikes in guiding.
OG star tracker kit
DIY - Do it yourself and know the tracker better
than
anyone
The DIY kit includes everything you need to build OG star tracker.
Specs :
- Weight : 1,6 kg
- Max payload 3 kg.
- Max focal length 400 mm.
- Periodic error 17"-15"
- Control via phone web app
- Power Supply via 5v 2A powerbank
- High accuracy 0,9° stepper motor
- Cutting edge TMC2209 stepper motor driver
- Snap port for DSLR
- dimensions
20 x 17 x 14 cm
- Made out of PLA
What's included :
- 3d-printed parts
- bearings
- screws
- Allan key for assembly
- laser
- belts and pulleys
- M3 and M5 threaded rods cut to size
- 5 mm x 50 and 5 mm x 52 mm rods
- Assembled PCB
Time of manufacturing can be up to 30 days.
Unlimited tracking time
Never seen before in this price-class, all mounts under 200 € have limited tracking to 1-2h.
Future-proof
Tracker is designed so when in the future the dec axis upgrade is ready, you could just screw it in and enjoy go-to.
Easy and
intuitive
to use.
With the signature polar wedge, the polar alignment is easy. Just point the laser at Polaris and you are done polar aligning. No need to look at sight tube or polar scope.
You need to buy also a ball head and tripod in order to use it.
Customer reviews
★★★★★
Pat_H., 28 Sep, 2024
Great, very neat construction. Lightweight and easily transportable concept. Energy efficient. Test on photo tripod with ball joint support. The balance position is correct. Also very good communication with the author. Really happy with the Open source concept and hardware. THANKS !!!
★★★★☆
Heiner J., 14 Apr, 2024
Hallo, nach erfolgreichem Zusammenbau möchte ich folgende Verbesserungsvorschläge abgeben: 1.Bitte in Zukunft keine M6 Schraube für die Befestigung des Kugelkopfes verwenden. Kugelköpfe haben unten in der Regel ein 3/8" Innengewinde. Die Verwendung von Adaptern ist kontraproduktiv denn jeder Adapter verringert die Stabilität. 2.Die Tragfähigkeit der Montierung sollte 5Kg betragen da die meisten portablen Montierungen auf 5Kg ausgelegt sind. Dadurch könnte man dann auch kleine Teleskope wie z.B. 71er Williams, ASCAR usw. befestigen. 3.Auf einem Android Handy muß zwingend bei den Browser Einstellungen "only HTTPS sides" ausgeschaltet sein sonst wird die APP nie funktionieren (hat mich 2 Tage Zeit gekostet um das Problem zu lösen). 4.Stromversorgung: USB-C auf USB-C mit neuer VARTA Powerbank funktioniert nicht. Es leuchtet keine LED. Das Problem liegt offensichtlich daran das der Controller keinen Datenverkehr zur Powerbank aufbaut. Dieser ist bei neueren Powerbanks zwingend notwendig denn wenn die Powerbank keine Last sieht schaltet sie sich automatisch nach ca.6sec ab. Es funktioniert bei mir nur mit einem Kabel USB-A(Powerbank) auf USB-C(Controller). 5.Die Passgenauigkeit der Einzelteile ist hervorragend. Besser geht es nicht mehr. Vielleicht kann man diese Punkte beim nächsten Update berücksichtigen. Viele Grüße, Heiner Jordan
★★★★★
Amr Elsayed, 28 Dec, 2023
At first wasn't sure how it will goes, But when I saw results from the discord community i decided to try it, When I got it I had minor problems on assembling, But Ondrej was there all the time answering all my questions even he was ready to send me some parts for free 😃 But everything went smoothly and I am happy with the results and got no star trails with good polar alignment so far on 300mm lense for a good amount of time. Overall, An awesome project and deserves people to try it
★★★★★
F. P., 10 Jul, 2023
Very satisfied. The creator, Ondra, went out of his way to make a kit for me even when they were out of stock, and after the package safely arrived, he was extremely helpful on Discord with troubleshooting and solving a few issues. If you like to tinker and don't mind a hands-on DIY approach, this is the best star tracker you can get at such a low price.