Tipping Point. Sometimes alternative spaces feature shows only an artist's mother could love, but once in a while there's one that's as good as anything else around, and that's the case at Edge. The show is Tipping Point, and it combines the efforts of Gayla Lemke and Tim Flynn, who live and work together in their mountain home in Pine. Both artists have impressive individual careers, and each has shown in the region for the last decade or so. Lemke is principally known for her abstract ceramic sculptures and installations, while Flynn works in metal and wire to create his non-objective, three-dimensional work. In addition to many smaller pieces, each has created a tour de force, with Lemke's being "Consequence," which comprises abstract ceramic stones, and Flynn's being "Re-generation," a group of woven wire constructions. Most of the included objects are by either Lemke or Flynn, though a few are collaborations. The hand-built ceramics by Lemke and Flynn's hand-wrought metal -- singularly and together -- are beautifully conceived. Through April 22 at Edge Gallery, 3658 Navajo Street, 303-477-7173. Reviewed April 5.