The big day!
Early in the morning of the day of astronomy we came back to the Motionlab.berlin and started to prepare our exhibition area. Of course, the self-made telescope should be the eye-catcher on a central presentation platform and we wanted to build interesting and exciting presentations surrounding the telescope.
So we dragged shelves, beamers, cable, power supply, projection screens and computers through the Motionlab, but somehow we were never satisfied with our setup. So we started to optimize - the structure became more and more efficient and smaller. Accordingly the available space of our Astro "corner" grew bigger and even more cozy.
At the end of the construction, we only had a small shelf, holding two Raspberrys and a notebook, plus three projectors and the 2m Yagi antenna for Meteor Scatter. On the "outer walls" of our area, the projection surfaces were installed so that we virtually had a 270 ° screen on which Meteor data, the Space Dashboard, the Stellarium animation of the planned observation programme and our presentation on telescope construction could be presented. See the short video on Youtube.
At the entrance to our area, the telescope stood on a single table and hovering above all the big crane held a NASA Flight Jacket. We found our setup quite appealing - and the colleagues from the MotionLab liked it swell.
A 4:00 pm the first visitors arrived. While there was still daylight, we showed both our astronomical stations as well as the Motionlab and its equipment. After sunset we went outside and watched the moon and the Orion Nebula. Unfortunately, other Deep Sky objects could not be reached from our location but still, the observation with our 3d-printed telescope was impressive for everyone.
Our tours continued until late in the evening and when our last visitors said goodbye, we dismantled our setup and cleaned up the Motionlab.
The response of the visitors was better than expected and in a retrospective we can summarise: All the work in our spare time was absolutely worth it and we can be proud of our result! So it's actually possible to build a fully functional Dobsonian telescope from sources on Thingiverse using the 3D printer.