Tabernacle was Set up by Moses at Mount Sinai
Source: TTT
Exodus 40:18, 19
When Moses set up the tabernacle, he laid its bases, positioned its frames, inserted its crossbars, and set up its posts. / Then he spread the tent over the tabernacle and put the covering over the tent, just as the LORD had commanded him.
Numbers 10:11, 12
On the twentieth day of the second month of the second year, the cloud was lifted from above the tabernacle of the Testimony, / and the Israelites set out from the Wilderness of Sinai, traveling from place to place until the cloud settled in the Wilderness of Paran.