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Fold tfianglc in half and unfc-ld.

Fold top of trianglc poir.ts down to bottom iold of trianglc.

Fold rigłu uppcr foldcd cdgc (crcarcd in prcvious step) down, to center crcasc Itnc.

Gluc center point of 1 module to center point of 1" module, overlapping points. Gluc all modules the same way. Last point of 8' module must be manipulatcd so 1 point poes unćcr point of 1“ module.