Expandable rod
thingiverse
The big heights in the house looks great, but it has a dark side. The spiders in the upper corners. It is not easy to remove spider nets from 5m height. Either you need a big expandable ladder (what I hate) or something expand your arm to such length. I chosen the second option. Bought three 2m length aluminum pipes, 30, 25 and 20mm diameter, and designed this
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