Spill-Proof, Shatter-Proof, Insulated Glass Coffee Mug

thingiverse

Human: Dreading spills at the office? Searching for a fun 3D-printing conversation piece that also keeps your coffee warm? Look no further. This spill-proof 8 oz. coffee mug has all the ergonomics of a traditional mug, but won't shatter if dropped, is well-insulated, and comes with a lid to keep your coffee warm and in your mug. No more spills on the way back to your desk! Hand-washing recommended. In fact, I'm pretty sure PLA will melt in most dishwashers, so don't put it in there. Print Settings Printer: MonoPrice Select Mini Rafts: No Supports: Yes Resolution: 0.1mm Infill: Rectilinear, Tetrahedral Notes: Recommend printing this with PLA. It is generally food-safe, and while the mug body doesn't touch your coffee you're definitely handling it around food. I used a heated, glass bed for a flat surface. Post-Printing Finishing The Mug To complete the print, you will need to source some of these in 8 oz. capacity: https://www.containerstore.com/s/kitchen/food-storage/jars/commercial-straight-sided-glass-jars/123d?productId=10008180 The outer diameter of the jar is 73mm, so ostensibly if you have something else of the same size you can use it. The design is for a slight interference fit, so that the jar has to be pressed by hand into place, and will only come out with some effort (fill it 80% with hot water, wet the whole enclosure, and tap the top of the handle on a hard surface. It'll go). How I Designed This Design Approach This was my first 3D-printing project. I know iterative design approaches work really well for software where rapid prototyping has long been standard, and since 3D-printing brings that speed to product design, it seemed natural to bring over. It went something like this: 1) Think about concept 2) Measure carefully with a caliper 3) Experiment with ideas and printer capabilities 4) Print something, try it, and critique it 5) Come up with simplifications and improvements, go back to step 4 until satisfied Iteration has been a part of everything I make. Sources CAD If you want to tweak or otherwise change the mug, here's the CAD source on OnShape: https://cad.onshape.com/documents/fe16b1164b722cb7374d7e5b/w/bda0120bab43307baa043129/e/4c210463aeb7de8b1309e742