Coffee Filter Funnel

thingiverse

Update 2017-01-27: I found my PLA prints of this thing leaked. This was due to the fact I had the air vents too close to where the coffee would be flowing. I made some changes to hopefully give some more material to prevent the leaks. Also, I printed with 4 shells vs. 2 previously. I also printed in HIPS vs. PLA. Ultimately, I want to do Acetone vapor polishing of the funnel. The other problem I noticed is the filter could blow out through the bottom while there was liquid in the filter. That was because there wasn't anything holding it up. The latest model has 5 bars across the bottom to support the coffee filter. This also means that you will have to print with support, unfortunately. The first article I have printed seems to work perfectly. I am printing a second unit as I need two of them. I didn't state it previously but the cold brew pitcher I am using is this one:https://www.amazon.com/gp/product/B00FFLY64U/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 This is a great item but it does let some grit out. I have found this grit gives me heartburn and detracts from the taste of the cold brew. Original post: This is an extension of my other cold brew coffee funnels. I made this one to filter my cold brew coffee using standard #2 coffee filters. This sits on top of a standard water bottle. No support needed. I printed mine in PLA. Food grade PETG would be good. This was designed in Onshape. The design is here:https://cad.onshape.com/documents/87bdb2eb9da751397fa0e9e8/w/52f99457f5fcb504699d793e/e/604495b1e8d537720516f9ec