This is a challenge issued by friends and family. The goal here is to make a robot that can bring beverages from another area to wherever the people are , allow the person to get their drink , then leave. It does not need to be fully autonomous , even remote control is acceptable. It does not need to grab them from the fridge, preloaded beverages are acceptable. This is Ez Robot though, I believe we could do better than that! Well anyways to start the project off I am using a roomba base. I picked up a stainless steel trash can last night as a outside casing. I will show you the rest as we go
By jstarne1
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850 pm , I descided to just turn it off and drop heatsinks to room temp. I'm not sure what was going on. My worse fear would be I habe two peltiers in there pumping heat in a circle. I will need to turn them on individually and check the direction of heat. I should have done this to begin with but I assumed they would be the same from the same manufacturing company.
930 update , I pulled the Peltiers out and they were in backwards. I tested them and then put them back in the unit. I now have it powered back on with the Peltiers in the correct direction. On a side now apparently my air conditioning went out and it's 75 degrees inside.
On the bright side, if it cools good with a ambient temp of 75 you know it's gonna work in a more desired environment. On the dark side, now you're stuck being in a 75 degree environment.
Lol thanks. I don't know if these peltiers are bad or what but they work great at heating lol. The first 30 min I'm concerned I broke them because the heatsink was HOT! It didn't burn be but it was a good 130 to 140 degrees. I'm concerned that something about running two in tandem is causing a problems. Hey I guess there's always the option of buying a mini fridge and gutting it lol.
Alright it's official , I'm tired of messing with this so so stuff. I'm considering an actual ac compressor to cool this bad boy. From what I have seen there are some small ones out there for mini fridges that I could easily retrofit.if I had done that to begin with I feel I would already have some frosty beers.
Reading your last post gave me an idea. Instead of mini fridge, use the parts from a small deep freezer. My theory is that if you use a slightly weak voltage it won't freeze. I'm still learning a lot of this stuff so my logic may be flawed but from what I think I know it sounds like a plausible theory.
Hey Josh, any luck with those peltier coolers?
Not really lol , I got them to work on a small scale where they could cool a single drink but when I turned up the power to even half capacity of one Peltier they produced tons of heat on one side and cool on the other. They seem to work best on a very small scale and work 100 times better as a heater than a cooler
I've found it may be better to use a real refrigerator compressor from a mini fridge of some sort as a much more robust cooling solution. I'm looking for a cheap fridge that is in good working order to rob the compressor and thermostat from
I've found then for 20 to 40 used or 60 to 130 new.