Coffee Cold Brew Filter Funnel for PET Bottles

thingiverse

I AM STILL IMPROVING THIS, FILES ARE SUBJECT TO CHANGE! I love cold brew coffee, for that reason I like to do big badges and keep the finished coffee in PET bottles. Cold brew coffee needs to be filtered, fo that reason I was looking for coffee funnels to hold the filter. I couldn't find one which fitted all my needs, so I came up with my own. Features V2: - Compatible with common coffee filters (i.e. 1x4). - Built-in PCO1881 thread for PET bottle. - Built-in air vent to allow air escaping from the bottle while filtering. - Special spacers to improve filter flow. - Built-in insulation based on infill and air. - No o-ring or tight seal required due to built-in bottle funnel. - Designed specifically for 3D printing. Features V3: - All Features of V2. - Re-designed air-vent so that it becomes an auto-stop once liquid level in bottle reaches bottom of funnel (UNTESTED!). Features V4: - Much bigger but less spacers for improved flow. Target is to filter as quickly as possible, this is for cold coffee which has been soacking before. - Bigger air vent. - Don't expect auto stop to work! Features V5 (RECOMMENDED): - Improved spacers in center for better flow. - Adjusted angles and surface on bottom for better printing. - Improved air vent (might not be needed due to big spacers at all). Thanks to @terahurts for the thread definition! https://www.thingiverse.com/thing:2693686