Bottle cooler for the fridge
Description
This Project Started When One Of My Friend Complained That He Could Not Cool His Drinking Bottle At Work As Quickly As He Got Thirsty. I Made This Holde, Where He Can Put One Half Liter Soda Bottle Or Can In And Put It In The Fridge. The Bottle Is Then Standing On Top Of An 80 Mm Pc Fan Than Circulates The Cold Air Aroud The Bottle. The Opening Of The Funnal Part Is 66 Mm. I Have Added A Very Simple Controller With An Arduino, Though Just A Switch So You Could Control The Fan Manually Would Work Fine. I Power The Fan On For 1 Second Via A Fet At 5 V (Though It'S A 12 V Fan), And Then Powered Off For 8 Seconds. This Way The Fan Is Actually Constantly Turning. The Project Is Not Perfect, But I Will Not Likely Do The Updates, So I Post Them As Idea For Others, If Anybody Would Want To Make A Version 2. 1) I Only Choose The 80 Mm Fan Because It Was What I Had. A 40 Mm Fan Would Probably Had Been Plenty, Or Even Better A Centrifugal Fan. 2) It Would Have Been Really Nice With A System, Where The Funnel Was Easier To Exchange. That Way It Would Be Possible To Make Different (And More Simple) Funnels For Different Size Bottles.
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