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Other RU-vidrs: "We're gonna use an Arduino, Raspberry Pi, several LEDs, and a K-type thermocouple to make a tea temperature alarm." Chronova: Steampunk Heath Robinson Device.
I can't express how much I love this. The amount of energy, time, materials and money spent on this, solely because you couldn't be bothered to use the timer function on your phone, is so out of proportion to the real-world benefit that it _has_ to be a pure labour of love. And I love that.
Nice skills and a fun project. Blokes like you won two World Wars you know. Fuses and switches and all that jazz. Bimetal rivets would improve the accuracy quite a bit.As far back as the 20s that I know of "Teas made" machines were in use and used bimetallic tech to make the Tea to a tee pardon the pun. The one I had was designed to fit into a bed head. Boiling water and Electricity right above your head in a wonky 1920s wooden bed. Marvelous Tech. It made coffee also but I think that was just a copy of the Tea side from memory. His and hers 10 amp cuppas I spose. Its funny why are such machines not around today? 1000s of coffee machines and timers are not standard.
Your a nut job! I love it ! :) Just spent the evening, again. building a hot wire foam cutter. It does rip cuts as well as cross cuts. I'm insulating a house with foam and don't want the cloud of foam dust. very industrial looking... not beautiful like yours. mines a loveless tool ;( sigh...I hate it when my coffee gets cold... that's the closest I can get to empathy for some one who drinks Tea.
your work is beautiful and the idea is solid, but you can buy bimetallic switches for 2 euros, hook them up to a battery and an alarm and some sort of pipe to conduct the heat to it, and this can be done much easier.
A lovely art piece. The mug should sit perfectly horizontal and one must be careful not to drop the ball in the mug; not a problem for a perfectionist.
In terms of brass or other copper alloys being used with food, my dad used to used copper cookware back in the day in Iran (copper cookware was/is used worldwide, just his personal experience) , but it was always coated on the inside with a thin layer of tin. This was because uncoated copper would leech into food and its salts were known to be poisonous. Tin is less reactive and less toxic (possibly nontoxic), and the intermetallic bond between tin and copper is pretty strong. Maybe tinning could be an option for food contact?
I just set up a roman candle with a length of fuse. It requires lighting so ask an adult to use the light it for you because safety. If you use a 9 shot version you get several notifications in case you miss the first. It provides both an auditory and visual indicator of the tea being ready. You will need to adjust the fuse length based on the burn rate. Make sure to use a non-waterproof fuse so if you come back before the warning is needed you can just dip the burning fuse into the tea to put it out. Enjoy this "life-hack".
Neat project! Given the ostensible purpose of submersion in a somewhat acidic liquid which is to be ingested, I do hope that the brass used is lead free, though.
edit: I just heard "When I built my vertical high speed drill... in the sterling engine video. 🙂 (1:22 - maybe someone could help me with what drill press that is? Maybe it's a converted hand cranked one?)
Just as a little fun fact, bi-metallic mechanisms are used basically everywhere around us. Most of the time not in the form a strip but in stamped discs that can be made to snap at a temperature with tolerances of less than one degree. Every item in your house that has a heater inside will most likely have a bi metal snap disc, as they are called, in them as safety mechanisms or every simple kettle that switches off when the water is cooking will have between 1-4 of these discs in them. It's actually quite fascinating how they work and how they are manufactured and actually how few companies there are in relation to the billions of discs used all over the world
