Create a plane about .3 to.4mm (or your preference) above the top letter surface, project your center spline to there
draw another sketch on the surface and project your letter outline, cut down the lines until it goes from tip to tip of one arm of the letter, but only on one side of the arm and only up to the rounded end.
draw a 3d sketch from the end of the upper line to the end of the lower line, another 3d sketch at the other end of the arm
(note at this stage the 4 3d lines going from the upper to lower surface at the ends are 4 *separate* 3d sketches)
loft between the upper and lower sketch using the 3d lines as guide curves
note when picking lines the point you click on them affects how the loft builds, try not to twist
do the same for the other side of the loft surface
draw another sketch on the top letter surface, project the curved end of the arm, another sketch the other curved end, you have to keep all lines picked in separate sketches for loft and boundary surface to work.
boundary surface the round ends using the edges already made and the curved end sketch as a guide line.
when you have all the upper surfaces build a planar surface on the bottom using all the edges of the other surfaces, stitch and form solid
