Antenna model with parabolic dish and movable axles
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Special antenna which works in the Antarctic
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Model information
- Source
- Printables
- Category
- Engineering
- License
- Creative Commons — Attribution — Noncommercial — NoDerivatives
This antenna is modeled on a real antenna that is located in the Antarctic. The special feature are the axes of the antenna which function via two hemispheres (bent axis). This design is unique in the world and this antenna only exists once. It was set up in the Antarctic in 1991 and has been operated by DLR ever since. You can find detailed information about the antenna system and its function here:
The Antarctic station GARS O'Higgins
https://youtu.be/PSbTHERRFY4?feature=shared
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Construction description:
The antenna can be rotated on the tower and can be adjusted in Azimut and Elevation by moving the two hemispheres. Drill the holes for the axes, but the axes must be clamped so that the antenna remains at the correct angle.
Attention!
I have drawn the antenna on a scale of 1:1 according to the original plans.
You have to scale the templates in the slicer. I print the antenna at a scale of 1.2
The original antenna has a diameter of 9 meters.
Example: 9 meters / 100 x 1.2 = 10.8cm large antenna diameter to print
Tips for printing:
The antenna can be printed with PLA or PETG.
Layer 0.2mm, speed 65mm/s (Anycubic Vyper)
Position the components correctly in the Slicer, they can then be printed without support:
Tower with plate.stl
Hemisphere bottom.stl
Hemisphere top.stl
Infill 25%
Axle 24mm long.stl
Axle 16mm long.stl
Subreflector with struts.stl
Infill 100%
Parabolic dish antenna.stl
Infill 25% Print the antenna vertically, divided into two pieces and you can print without support
Sink half of the dish in the slicer and print the component upright (take a look at the image) glue the two halves together with superglue (Sekundenkleber), this makes the dish more beautiful.
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Alternatively - the following parts can be printed with support:
Parabolic dish antenna.stl
Infill 25%, Print the antenna horizontally in one piece
In my case, the support is difficult to remove from the backside,
the surface will not be smooth.
Subreflector with struts.stl
Infill 100%, prints better with support
Print the component upside down with the struts facing upwards
The text has been automatically translated from german