March 19, 2020
Description
Consumer bottles of liquid soap and hand sanitizer are designed to dispense too much! For liquid soap you only need a little bit for it to do its job (break the surface tension of water) and for hand sanitizer you only need enough to cover the surface of your hand.
Make those bottles last much longer by printing out a limiter (aka "little snap-on collar"). The included .stl should work on most bottles that have an 8mm-ish diameter neck but if you need something else you can generate whatever size you want with the included .scad file (which has detailed instructions on its use--not that it's rocket science).
Print settings (infill, layer height, etc) don't really matter! It should "just print" since it's such simple geometry (and small object). If you go thick it'll print faster so feel free to crank up the layer height!
License:
Creative Commons — Attribution