Step 5: Assembly; shell wall to shell base
~Mark the quarters on the circle with pins.(photo #1)
~Do the same with the shell wall.
~Match up quarter marks on base and wall, pin together. Gently ease pieces together adding more pins. (photo #2) *note. I can about guarantee that these pieces will not fit together if you don't "pre-ease" using pins, so do this step even if you hate pinning. I strongly dislike ripping seams. lol.
~1/4 inch seam allowance.
~Sew right side to right side.
~Trim closely or snip seam allowance. (photo #3)
tips: I sew so that the base is being fed with my feed dogs. Some people are more comfortable having the dogs help the ease of the walls along. It's all a preference and I don't know that one is more correct.