Every morning I wake up, clean out the coffee maker, fill it with water, refill the grounds, and hit "start". I would love to eliminate most of that work with automation.
I'm imagining some kind of Flutter-powered brewing system along with some automated bits that can clean it out, get a new coffee filter, and start brewing again. It would need 4 storage vessels - fresh coffee grounds (or beans + grinder), fresh water, spent coffee grounds, and spent coffee. Alternatively it could be hooked up to a tap and placed in a location on the counter such that there is a chute to the garbage can (possibly with a sensor to confirm the can is there before dumping). 3D printed components can be used for much of the structure, but food safe components need to be used for all surfaces that come in contact with food.
I am tired of buying things I cannot fix, with limited features, high cost, and way to customize. Anyone else?
Discuss design choices. - What kind of brewing system will we use? What is an optimal way to dispose of old coffee? How do we place the new filter? Is there any kind of brewing that uses a roll of continuous filter material? This would be cheapest long term, if a reliable mechanism could be made that utilized it.
Prototype possible mechanisms.
PROFIT - Hahahaha, just kidding. Enjoy coffee!
I drew up some basic concept sketches to illustrate how I think the dumping mechanism and other parts may work. Also I say "pump/heater" for the water, but this can be done without the pump. I will include pictures of my current coffee maker for how that is done without a pump.
My current coffee maker uses a "boiler in a hole" method to send steam up a silicone tube to the shower mechanism. This would be a good thing to design for our system. Alternatively, a gravity feed system could be used.
Here's the boiler in a hole:
That tube leads to the top of the coffee maker, where there is a silicone gasket and then a steam condenser and shower unit. This could be prototyped with 3D printed ABS, just don't drink what comes out!
Filter Basket I think we could use. These are ~$5.