Astronomy enthusiasts looking for a new project to keep them busy, might take inspiration from a new DIY star tracker that has been featured on the official Arduino blog. The 3D printable system is ...

2. Cut the paper template and place it on the polypropylene sheet. 3. Using a pencil, trace the star on the plastic. 4. Cut the star out with a knife and metal ruler. 5. Repeat the last two steps so ...