tySplineMesher specifically *doesn't* do corner mitering, to avoid the exploding corner problem of the max's spline mesher...but the limitation is exactly what you're noticing 
Make a spline with an acute corner (maybe, 1-3 degrees) and watch as the sharp corner explodes in size....this is what I wanted to avoid. Maybe at some point I will add a mitering option though, for situations like yours where you want it.
Make a spline with an acute corner (maybe, 1-3 degrees) and watch as the sharp corner explodes in size....this is what I wanted to avoid. Maybe at some point I will add a mitering option though, for situations like yours where you want it.