Fast Bottle Warmer for Medela

thingiverse

Clip your Medela baby bottles into this drill chuck attachment and spin the bottles in a bowl of hot tap water to warm them. Cuts warming time by 75% or so and doesn't froth the milk. Instructions Print your part in ABS so the hot tap water doesn't soften it. After printing, trim off the support buttresses flush with the shaft. If you have the old style Medela bottle caps with four ridges on the sides, use the file labeled 'old'. If you have the new style with no ridges and a wavy skirt, use the file labeled 'new'. Optionally, for extra strength, install an m3 by 30mm long button head screw and nut through the shaft. Stainless is recommended. The parts are optimized for a 0.35 to 0.40 mm extrusion width and they fit in a 3/8" drill chuck. To use, chuck your bottles into your drill, immerse in hot tap water, and spin clockwise/forward in 5 to 10 second bursts with equal pauses in between. Both the water and the milk/formula should spin up and spin down without frothing. For optimum warming speed, change out the water when it gets cooler or leave the hot water trickling into the bowl. Alternatively, if you only have a slow electric screwdriver, you can spin the bottle continuously at low speed on its side or at an angle under trickling hot water or in a bowl of hot water.