Microwave home water heater

I am interested in any design or work anyone has done to build a microwave type water heater for home use to supplement or replace my existing water heater. So far i have not been able to find any info on a workable design. Send me a message at    jaybird@mtco.com

Topic by thorning   |  last reply


what is the most stupid/funny thing to 'cook' in a microwave? Answered

This can be absolutly anything- as long as it'll fit!

Question by KEYBOARDISBROKEN   |  last reply


Microwave stopped heating and I fixed it.

Our microwave is about two years old and it stopped heating. The fan ran and the carousel went around, but food did not warm. I took it out of the upper cabinet mount and opened the case. I know about the big capacitor and discharged it with a screwdriver after disconnecting the power. For extra safety I clipped a jumper wire on both terminals. I watched numerous videos at YouTube on troubleshooting a microwave and on testing the various major components at home, but no component showed any signs of failure. Then it began to work again as suddenly as it had stopped working. About ten days later, it stopped heating again. After more testing, still no components showed signs of failure. But, I did squeeze the female spade crimp connectors a little with a pair of pliers before connecting them again so they fit more tightly when reconnected. The microwave has continued to work as it should. My wife remembers a time a few months ago when she ran it and ran it to get something to cook as she wanted it and the microwave stopped because it was overheated. I suspect a connection was weak and heated the metal in the connector enough that it became weak. Later it failed intermittently. We could have called warranty service, but we did not want to wait. Knowing what I know now, I doubt a serviceman would have patiently checked for weak connections, but would probably have simply replaced some parts. When those did not really solve the problem, the microwave would have been condemned and replaced. A replacement oven may not have matched our other appliances as well as our present microwave does. Test procedures for components in a microwave are different than they are for similar components used in (for example) a sound amplifier. This applies especially to the high voltsge diode. Do not connect a voltmeter to the high voltage side of the transformer. When running the microwave, be certain to have a dummy load in the cavity, like a cup of water. A very useful test that checks for power to the transormer primary is to disconnect the primary side transformer connectors and attach aligator clips from a voltmeter to the transformer leads. Then run the microwave for a few seconds and check for a full line voltage reading each time. A clamping ammeter to measure line current helps because the sound with the magnetron working is not too much differnt from the fan and carousel running without the magnetron working, but, it is easy to see the extra needle deflection when the magnetron is also drawing current.What seemed to be an expensive problem had an easy inexpensive solution.

Topic by Phil B   |  last reply


Have you ever had a microwave oven talk to you before? Answered

Mine likes to say, "Hi." A picture of this is attached.  There is indicator light that says, "Hi." When my microwave says, "Hi" to me, I say, "Hello! Hello microwave oven! How are you today?" And it just keeps saying, "Hi, Hi, Hi," until... it is done cooking. When it's done cooking it makes beeping noise, and then it tells me what time of day it is, and then it acts like a clock, telling me the time of day, and it keeps doing that until when I tell it I want to cook something again. I wish a happy, happy April Fools' Day unto everyone!!!

Question by Jack A Lopez   |  last reply


Can you make a firework or rocket igniter from a microwave transformer?

For homemade kno3 rockets that are really hard to ignite(usually needs a lighter). If i were to guess id convert it to DC, run it through a 12 volt battery, Rig a switch. Just a thought it would be really cool if you could rig a cell phone to it stand far away and call it for ignition.

Question by cr1991   |  last reply


does anybody know how i can make a system that can detect humans in a dense area?

I need to make a machine of some sort that will detect humans in say woodland or a city. it needs to be able to find were they are and how far away(roughly). ive already established that IR, microwaves, coherant ultrawideband noise, and cameras wont work. ive heard there are machines that can detect human heartbeats and breath. can anybody help me in detail?

Question by MANIAC   |  last reply


Need to make a shelf or table for the top of my TV

I need to be able to put plants on top of my TV and need a shelf/table of some sort to put them on.  The tv is on a 15" deep microwave cart and there is about 2" clearance on either side.  The cart is 25" wide.  I have 15" wide 3/4" fiberboard that I can cut to needed width but can't come up with a good way to make it stand up (independently of the tv).  I thought about just putting some legs on the board but am concerned that this will be strong enough to hold the weight of a plant (let's assume 35 lbs but I doubt I would put anything that heavy on it).  Here is photo of what the table/stand will go on and the red lines are what I hope it to look like.  Any help would be appreciated.  Oh, and it has to be CHEAP!  I've already spent $15 on 8' of board and don't want to spend a great deal more.

Topic by nwmshp   |  last reply


Animal Crossing City Folk

Anybody heard of it? Animal Crossing City Folk Wii. It comes with the new Wii Speak! I dont know if its like 50 $ or 60$ Probaly around that. Well it here are it's release dates : NA November 16, 2008 JP November 20, 2008 EU December 5, 2008 AUS December 13, 2008 And it's also online and you can talk and hang out with people around the world! So who's gonna get it and whos not? RANDOMNESSSS!!!!!!!!

Topic by Owenmon   |  last reply


Make SF Meeting

This past Sunday I went to the Make SF meeting graciously hosted by Tech Shop in Menlo Park. I unfortunately do not have names and/or links to work relevant to the presenters, but I will try to give an overview of what I saw as best I can.The first presenter showed a musical interface he made with a laser pointer and a photocell that altered a track of music to correspond with the disturbance of the surface of the water. He told of how he embedded many such bowls in a table and had the laser pointers shining straight down into them from the ceiling so that it seemed as though the water itself was changing the music. He used it a party the previous weekend (side note: I never get invited to parties nearly as cool).Followed him was a man that created a device to interface with a computer as a USB HID. In short, it pretended to be a keyboard, mouse or joystick and then you could send it commands from a micro controller. He had his device installed in a model plane and based on accelerometer readings used it to control a flight simulator. Next there was a man from Google who showed the low-cost Arduino based glowing orb that he was working on based on the Arduino Orb Build Warden. This was presented as one possible solution to have widespread visual indication for monitoring the status of their ongoing projects. Presenter #4 promised not to have anything quite as high tech and passed around a copper bracelet made using copper wiring and traditional cold forge methods. He then spent the rest of the time talking about how he welded the ends of the bracelet with a tig welder made from a microwave much like this one. And even though he promised not to have anything technical to show, he went into the finer points of building your own microwave welder in regards to transformer modification and the importance of finding a reliable metal foot pedal to control the weld. Lastly, someone came from Shape Lock and demonstrated his "Ultra-High Molecular Weight Low Temperature Thermoplastic." Or in other words, you stick it in a pot of water heated to 160 degrees for a few minutes, take it out and bend it into any shape you want, let it harden for a few more minutes and you're good to go. You can use it to quickly and easily make all kinds of high-strength custom shapes and fasteners. It is actually very cool. However, remember, don't stick it in your mouth (or anywhere else!) because albeit non-toxic it will lock your jaw shut and good luck getting that back to 160 degrees. Oh... I should also mention that the meeting was organized and hosted by the legendary Andrew Milmoe.And that summarizes what I saw and heard.The next meeting will most likely be the first Sunday in March and you can get more info on the official Make SF site. Also, there will be a Make SF social gathering next Thursday at Mars Bar in San Francisco (7th and Brannan).It starts around 7 PM and there is rumored to be a special robotic guest attending. (if anyone has more info on any of the presenters please let me know)

Topic by randofo   |  last reply


First image uploaded to web - subjects of photo splitting up (don't tell Kelseymh!)

From the BBC: An all-female doo-wop band whose image is believed to have been the first photo uploaded to the fledgling world wide web is to play its final gig. Les Horribles Cernettes take their swansong at the Hardronic Festival at the Cern laboratory in Geneva - the birthplace of the web. A picture of the women was uploaded to the web on 18 July, 1992, by web creator - and fan - Tim Berners-Lee. He wanted it to test out the version of the web he was working on at Cern. Press tornado The band was founded in 1990 by Michele de Gennaro who worked at Cern as a graphic designer. The Cernettes get their name from the initials of the giant particle accelerator, the Large Hadron Collider, used at Cern to investigate fundamental physics. The group has won fame in scientific circles by performing at Cern social gatherings and physics conferences. The women sing classic 60s pop songs, as well as their own compositions such as Microwave Love, Collider and My Sweetheart is a Nobel Prize. The gig on 21 July at the annual Cern music festival will be their first performance for five years - and is billed as their last. Jim Halley, manager of the band, said there had been a huge upsurge of interest in the band because of the anniversary of the image being uploaded to the web. The band was even featured on the US talkshow hosted by Jimmy Kimmel, said Mr Halley. "This photo was one of those that changed the web, from a platform for physics documentation, to a media for our lives," [the band] said. Les Horribles Cernettes.

Topic by Kiteman   |  last reply


Instructables Internship - Day 1

Hello from Instructables HQ!*Last Saturday, I flew down to visit Instructables. I stayed and poked around San Fransisco over the weekend, but today I started my Instructables internship!(Sadly, I left my camera at home, and I don't have nearly as many pictures as I'd like)I arrived at the control tower, and was greeted by [/member/numberrandom Mitch] and [/member/fungusamungus Ed], and [/member/candia Christy] & [/member/ewilhelm Eric] arrived shortly thereafter. I was shown around the place, and then I started to get working. I got to take [/member/noahw Noah]'s desk, since he's out for the week. (Probably chasing [/member/T3h_Muffinator Muffinator] to get Project X's instructable done...)Soon, [/member/rachel/ Rachel] walked in, and helped me get a copy of the database working, so I could start working on site-related things.While the computer was chugging away (as it did for the rest of the day), I walked around and met [/member/randofo Randy], and a few other people. Randy explained to me some of the cool things that he's working on, and I offered to help. Somehow, we stumbled upon the idea of drying clothes by microwaving them, and we were really close to actually trying it...Later, I started assembling and documenting [/member/ladyada Ladyada]'s (seealso) TV-B-Gone kit. I didn't get to finish it before the day ended -- it just flew by!Everything was going great. I had been extremely excited for this opportunity, and its even better than I thought. Everyone seems interested in each other's projects. Its really cool.I can't wait until tomorrow, where I hope I get to do more exciting and fun stuffs! Yes, I said stuffs!* okay, I'm not there right now...

Topic by zachninme   |  last reply