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So my birthday just past so money to splash on astro stuff , i will have my 1000D modded by juan at cheapastrophotography and also have ordered an autofocuser from deepsky dad https://deepskydad.com/autofocuser i know they can be done DIY but this is a neat package and costs about the same as a SW autofocuser and a hitechastro focusmaster and i`m no electronic wizard and pavel seems to have a good product and works with ascom and confirmed it works with APT i will update in a few weeks time when hopefully i will have received and tried out .
I would like to share my design of a smart barn door tracker. It is a simple to build isosceles barn door tracker with tangent error correction through a Arduino micro-controller. I have shared all the details about the tracker including the mechanical design, electrical circuit and the software source code here:
If you are interested in the math and other details about a barn door tracker, more details are there in the blog. Also find an online calculator which helps in calculating various parameters while designing a barn door tracker. The blog is here:
M46 and M47 shot with this tracker.
135mm lens, ISO800, 15sec X 200 subs (50 minutes) exposure. Cannon 500D.
Comments and suggestions most welcome!
I've been working on a DIY fan for my 10" Skywatcher newt. My plan is to measure the ambient temperature and the mirror temperature with two separate thermistors and control the fan speed depending on the temperature difference.
My question is, does it make sense to use the fan if for some reason the ambient temperature is higher than the mirror? The fan is sucking the air out the tube at the moment.
I want to display FWHM values on a homemade focuser handset over USB from either BYN or Metaguide.
Does anyone know if these programs even output their data, and can it be obtained?
I have an arduino, and access to some good programmers thankfully.
I bought an Opticstar 2" Manual Filter Wheel and the plan is to stick an arduino controlled stepper motor on the wheel perimeter to turn it. Magnets and hall effect switches will be used to keep track of the position and which filter is active. The mechanical design is done using the open source apps LibreCAD and FreeCAD. G-code for my CNC mill is produced using HeeksCAD and the mill itself is controlled by LinuxCNC. Electronic design is done using the awesome KiCad which recently has had a massive boost by the propeller heads at CERN.
The mechanics is almost done. Still need to etch the PCB and put it together before the real fun begins writing the firmware