Hello again, I am Manthos From the Libre Space Foundation (creators of SatNOGS
). I have postpone this post a lot of times for many reasons but I think that the time has come. Last year, LSF designed, programmed and built UPSat
the first completely open software and open hardware satellite. The project started from the university of Patras but the university failed to deliver it on time. LSF came to the rescue and design built almost all parts of the satellite in a 7 month period. The biggest part of the mechanical part was already made by the university in a proprietary software. A part that was missing was the communication antenna system and the placement of the GPS antenna. So, an antenna deployment mechanism was needed to be made. After a lot of prototypes and back and forth between FreeCAD and KiCAD the final part was ready.
All the parts and changes tracked in github
Final design in FreeCAD
Some first prototypes
Fixed in a prototype chasis for RF testing
The final design (you can see how the lid is kept closed by a string attached on e resistor. In order to open you just pass some current from the resistor, it heats up and burns the string)
This is a video from the last release sequence we run before deliver the sat.
This one is taken the day we deliver the sat and this is the fit check procedure
And this one... (UPSat is the left most in the picture and you can see the antenna release system before release)
This I the first beacon we received from UPSat in space! (Means that everything went superb!!!)
You can see it on the waterfall and hear it in the audio tab.
This is a picture of a decoded CW (morse) signal