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Hi, As a newbie in AP I recently discovered that astro imaging isn't as simple as I imagined, it's not just "pointing and shooting". The main point is that I need a tracker that will follow the sky's movement. But after seeing the prices at which decent trackers are sold I decided to see if I could build one myself from spare parts at my workshop. Turns out that I can, using two planks of wood a hinge, an arduino, a stepper motor, etc. So I decided to get to it, I have built the connection between both planks of wood with the hinge, but have now discovered a problem. After some investigation, I realized it's quite commonly named the "Tangent Problem" (the rod forms a 90º angle with the bottom plank). So the solutions offered vary from curved rods to involute pieces of plastic and tilting the rod. I also saw another solution that was adjusting the speed at which the rod moves, and since I'm going to be using an arduino-driven stepper motor, I decided that this was the way to go. The problem is that I don't know in what ratio the speed has to increase over time to compensate the "Tangent problem". That's why I decided to pose my question here as I'm sure someone must have done it already. Sorry for my bad english, it isn't my first langnuage. Thanks in advance and clear skies, S
I am not sure which section/category this question would belong to, so I post it here for now. Has anyone ever thought of mounting the mount on a bracket on a wall? now the reason I ask this: from my garden I have a 180 degrees view from south to north through west. and my study is on the second floor. I was wondering, instead of dragging all my kits, scope, laptop, etc. out into the garden, can I fix a couple of brackets to the wall outside my study window and fix the mount on it? it iwll roughly give me the same view, in fact because it's higher up, i will get better view of near horizon objects... is this too crazy? has anyone thought of this before, or even better, done this before that could advise what was their final decision?? Many thanks, Naeim