I recently discovered the Open Astro Tracker by OpenAstroTech. Does anyone have experience with it and can recommend it? I don’t want to spend time and money for a product that maybe won’t work, but I really like the idea of a self build tracker. I also like that it can be upgraded later by adding things like a autoguider
Because my camera is only ~1kg (2.2lbs) the small model is enough and I don’t plan on upgrading anytime soon. If I can be sure it will work, its fine if it takes some time to print and assemble.
Also, can someone make a rough estimation of the price? On the website it is around 250€ for a complete kit, but I have a 3d printer and don’t need the autoguider right now. For me that seems a little expensive for mostly 3d printed parts.
I haven’t built the OAT but I have built the larger variant (OpenAstroMount). OAM is pretty well designed in my opinion, with the biggest weak point being the connection to the tripod. In my case I machined a replacement for the printed part.
I believe OAT should be more than enough for light setup, but you have to make sure you have a good place to set it up. It isn’t designed to sit on a tripod. They have a new model in the works (OpenAstroExplorer) which I believe is designed for tripod use without being as massive as the OAM.
You can bring the cost down by purchasing components for cheap on AliExpress. That’s what I did for my OAM. Take advantage of their sale events too. You’ll want to avoid cheaping out too much on certain motion components (namely pulleys and belts, possibly also bearings). For aluminum extrusions, a local supplier might be cheaper, especially if you can buy a long section and cut it yourself.
You could also look at the OG Star Tracker for a cheaper build, though I believe that doesn’t support GoTo and may not have as good performance.