i am making good, but slow, progress on my mirror frame. i measure constantly as i go. with a pattern like this, i need to make sure that i keep my lines straight... never rely on the pieces to do that. the cumulative effect of even the slightest variations in the sizes of pieces will throw you off very quickly.
for reference points, i use the center markings, center markings between the repeats, and the distance from the edge of the base, to name a few. i will usually use multiple reference points when beginning the pattern... and always measure more than once. so far, i am happy with my degree of precision...
