Flash insulated air mattress drying adapter

thingiverse

This adapter connects the inflation port of a REI Flash backpacking insulated air mattress to a small squirrel-cage blower to accelerate drying the inside of the sleeping pad. If you inflate the Flash on the trail using your mouth/lungs, you'll be blowing very moist air into it. Once home, it's difficult to dry out the inside. REI advise laying the mattress flat and opening both ports until it dries, but I find I can still see moisture droplets inside for many days that way. Shine a flashlight from the backside to see the droplets. Using this adapter connected to the inflation port, and leaving the deflation port open I can dry a mattress out approximately overnight. The blower used generates very low pressure, so it's not going to damage the pad seams by overinflation. (The pad does not, and IMO should not, fully inflate while being dried.) The 2017 Flash has a different design (squarer) and different color (red), but should still fit. It is listed as using the same pump accessories. The fan needed is here: http://www.amazon.com/gp/product/B00MJU6JR2 The version of the Flash which I have looks like this: http://www.backpackgeartest.org/reviews/Sleep%20Gear/Pads%20and%20Air%20Mattresses/REI%20Flash%20Insulated%20Air%20Sleeping%20Pad/Test%20Report%20by%20Brian%20Hartman/ This fan happens to have a small ridge on top. My adapter design latches onto that ridge to stay put. It also latches into the pad's inflation port. I power the fan with a small 12v supply. In use the blower draws less than 100mA. I printed this successfully using PLA, 0.2mm layers, 0.4mm nozzle size and it has a good snap fit on both the pad port and the fan.