Update: The arm holds two antennas now. This makes it possible to balance the wights. The rectangular thing is the mini LED dice I have made earlier. It could be imagined to be the landing light as seen on aircraft carrier ships.

Sandmann post cards https://ddr-werbefiguren-welt.de/ddr-sammlungen/alles-farbig/

More Sandmann vehicles (a.t.m cmoon rover, space ship, harvester, Jeep, multi tool car, street cleaner, Ikarus Bus ... https://www.thingiverse.com/thing:6478976 https://www.thingiverse.com/thing:4124344 https://www.thingiverse.com/thing:4066776 https://www.thingiverse.com/thing:4026436 https://www.thingiverse.com/thing:4732390 https://www.thingiverse.com/thing:4153874 https://www.thingiverse.com/thing:6468632 https://www.thingiverse.com/thing:6478242 https://www.thingiverse.com/thing:4202304 https://www.thingiverse.com/thing:4057681

See the old picture, USSR moon base module The sports and kitchen module with fish tank (blue marking) and growing some plants . uploaded the first BETA parts for the base

• the top part designed to match the shape on the underside of the space ship
• half sphere (atm upper and lower are identical) no holes for the pipes connecting the feets
• mid section ring (atm no windows,...)
• connector ring (2 pieces needed)
• cap
• radar dish arm V2
• foot (3 pieces each needed)

Based on an very early USSR moon base design. It utilizes parts I have made earlier.

• Sandmann space vehicle, aka space patrol vehicle. https://www.thingiverse.com/thing:4015527
• Radar dish https://www.thingiverse.com/thing:3968121

On the base the radar dish arm will be moveable. Together with the cap and the the shaft inside the top disk a screw 4mm makes a bearing. The base parts will have 3 feets each. The shown amount of feets is there be cause of Tinkercads inability to make symmetrical arrangements the easy way. It is a mess.

By chance a few windows could be designed. Not exactly shaped as they would be in reality. Just to look inside. Is there a plant or a fish tank inside?