I used a Source Turbo to separate the oil from the alcohol. Most of the work is done at the front-end of the process:
Freeze flower and 190 proof GNS (Everclear) in separate Mason Jars. Once as cold as the freezer will take you, place in an ice chest with 10 lbs of dry ice for 4 hours. Then, mix the two together (wear gloves!) and shake vigorously for 3 minutes, let stand for an additional 2 or 3 minutes then strain alcohol off of plant material then filter. I used a #4 Cone filter, filtered twice. Then into the Source to extract/recover the alcohol. The picture is what came out of the crucible. IIRC it was 5 or so grams.