Here's a model I made of a cup dispenser for the small plastic cups used at many congregations of The Church of Jesus Christ of Latter-day Saints. Print it in the orientation shown below, with as fine of layer lines as you can manage, and/or use adaptive layer height. Use a raft unless your printer is calibrated magically. The top portion and the hopper tabs will need support under them, and I use 4 or 6 wall layers. the thicker it is the better. Works Good, Saves Time.