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
— Last update
Other robots from Synthiam community
Deleted's Erne - Emotive Robot
ERNE emotive robot studies human-robot interaction: 10 micro servos for facial animation, 2 head servos, EZ-Robot...
Jstarne1's 2013 Robo Ducki , Gift To Dj & The Ez Robot...
Custom EZ Robot Ducki scaled for microservos, 3Dprinted robo-duck celebrating EZBuilder, EZBits and EZB v3/v4 with...
Jdebay's Mini-Zip V3 Upgrade.
Repair and upgrade a Dagu RS024 12-servo hexapod: v3 controller install, mini-servo replacement, and learning...
Get well soon, Josh. I remember when that happened to me. Not fun at all.
God Bless You!
;)
Thanks guys , I appreciate the thoughts. I went by radioshack while waiting on food to be cooked and picked up silicon based headsink compound. I got lucky they had a buy one get one free deal. I believe today I will order a higher power Peltier unit and maybe a control board to control temp. With a control board I can make it much more energy efficient by the Peltier and fans shutting off or at least slowing down once the optimal temp is reached. This will also reduce the chance of the beverages freezing if the newer unit has that much power. I will post the items purchased. The roomba will arrive monday in the mail.
OK so I placed a order on amazon to beef up this setup.
Voltage: 12V Umax(V): 15.4V Imax(A): 10A Qmax(W): 154W Dimensions: 40mm x 40mm x 3.2mm
Peltier Cooler Foam Washers
This insulates the edges of the peltier from moisture and heat as well, this is very importantHeat sink , x 2 98 x 40 x 20mm
I plan to use these to bolt onto the sides of the current heatsink which will increase cooling capacity
This is very useful as I can have something to rate the inside temp of the chiller in comparison to the ambient air temperature around the robot. This will be a nice tool to "tune" the chiller later on so that I get good power conservation and internal temperature regulation.Now I basically need a arduino compatible temp sensor. three of them. One for the hot side of the heatsink one for cold and one for ambient surrounding air. The ezb will eventually be able to control temperature. I will have a manual switch to turn on the chiller without a connection to ezb as there will be times the robot is not running around that the chiller will be useful for beverages.
OK test number 2, I added the fan and turned the unit upside down just for this test. I want to see if the additional ventilation made a significant difference. In any case I have a much stronger unit come that should have around 3 times the heat pumping power as this original equipment unit. I will let this run and check it at 1 hour, two hours and three hours will be the max run time. The OEM manufacturer claims a 36 degree difference so if that is the case the inside temp should be 36-38 degrees. I places the thermometer in the chiller as a solid reference to check each time.
https://www.youtube.com/watch?v=OHg3HGSwpfc
Update - Goodies have arrived! Pictures tell all. Today my tooth was extracted and I feel so much better I could do cartwheels. The doctor says no cartwheels for 24 hours though.
Props to Robotmaker for providing the roomba , I appreciate it. This is my first roomba and buying a new or even broken one looked like a lot or money or risk online. I have two stronger Peltier units still on the way. They will be here by thursday. If one unit is not enough I am prepared to move the current one over some and have two run in tandem. Now I can wait for the higher power peltier chillers and if I want I can start playing with the roomba.
Nice!