This worked well for me and I am happy with it. No dust clouds, no big powder spills all over the sift work area. Some powder flowed out past the hinges of the grate, but this was minimal.
Step 1: Clean powder cartridge and ensure it is installed and open.
Step 2: Set refresh rate to 100%.
Step 3: Place bag over grate and make a baseball sized hole in the bag. Rotate the bag over the grate aligning the hole with the grate. (This prevents a lot of powder dust escape).
Step 4: Monitor fresh hopper. Begin to fill cartridge once the hopper is reasonably full. This will make room for the entire bag.
Step 5: Empty cartridge into empty powder jug. Adapter funnel credit goes to @ashworth, who provided the stl here. I split it in 3 to print with SLS.
