Originally Posted by
jwright
Details:
Inner shell: 1.1 oz calendered ripstop (olive) from DIY Gear Supply
49 x 56 inch cut size (2 seam allowance on all 4 edges, to be trimmed after joining faces)
head darts: .5 x 10 (yields finished width of 40.5)
foot darts: 1.25 x 20 (Yields finished width of 33.75)
Outer shell: 1.1 oz DWR calendered ripstop (olive-brown) from DIY Gear Supply
59.75 x 61 inch cut size
59.75 wide = width + (2 seam allowance x 2) + (2 x 2baffle height for outer side wall) + (9 x .75 for differential) = 45 + 4 + 4 + 6.75 = 59.75
61 length = length + (2 seam allowance x 2) + (2 x 2baffle height for end walls) + 1 differential = 45 + 4 + 4 = 61
Head darts: 1.25 x 10 (add the differential (.75) to inner shell dart size to achieve same overall width as inner shell)
Foot darts: 2.0 x 10
Shaped baffles: 2.5 x 54/55 - 0.9oz NoSeeUm from DIY Gear Supply
Due to the pronounced curve of the cut baffles, the outer face length was longer at 53 while the inner face length remained 52. A 1 seam allowance was added to each end to be trimmed as needed and ½ add to the height for attaching to the shells. Approximately Ό width was trimmed from the last 12 of the foot end.
Construction to follow .................
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