Liquid / Grout Mixer 3-1/4"D

thingiverse

Needed a grout mixer for a tile project, so I designed one using SW2012 and printed it out. The design allows the mixer to pick up material from the bottom and push it down from the top, resulting in discharge flowing out through the sides. To assemble the mixer, print the top and base with the flat side facing downwards, then fit them together by interlocking the slots on the hub. It's not clear if this detail is crucial, but I staggered the top blades to ensure they don't line up perfectly with each other. The pictures showcase an earlier revision of the design, while the current version features a lower-profile outer ring and streamlined blades for improved performance. A 3/8"-16 threaded rod makes up the shaft, secured by a nut that's flush-mounted in the base and double-nutted on top. Ideally, a self-locking nut would be used on top, but I didn't have any available at the time.