Tuesday, March 8, 2016

Removable Bumpers and Sour Beers

Josh and Tim requested removable bumpers on the mini quad. This would serve two purposes, first it will allow us to remove broken bumpers and replace them, instead of replacing the whole frame. Second, we will be able to remove the bumpers which weigh 2 grams each for a total of 8 grams! This should help the flight time when we are racing.

Amy came up with the idea for how to slide the bumpers on, she's wicked smaht. Seriously though she came up with it in about a second.

Take a look below.





Pretty excited to try them out. Undoubtedly they will need some tweaking since they feel like if they are hit hard from the side they will likely pop off.

Now onto my second hobby. HOMEBREWING! I have decided to start trying to brew sour beers. Amy and I love Goses and most sour beers. I tried brewing a Gose a few weeks ago, but it did not get very sour, which was quite sad. Talking with a helpful guy at the brew store I discovered I had used the wrong bacteria, I need lactobacillus brevis in order to get the big sour flavor we like. Now in order to keep the bacteria happy during the first 3-4 days the wort needs to stay between 90F and 120F. This is pretty hard when it is winter in Boston. So I am making an immersion heater. Bascially you put the fermenting bucket in a larger bucket and then use a water heating coil with a temperature controller. I added a water pump in order to circulate the water.

Here are some pictures of my test setup.






The temperature controller has a thermistor which is also in the bucket. This allows it to sense the temperature of the water control the heating coil/pump.

Seems to be working well so far, I am excited to try it out this weekend when I start my sour beer.