pic: Secret part of my newest vexbot

[Tytus Gerrish]

[cdm-description=photo]25430[/cdm-description]

[Michelle Celio]

if anyone can accurately guess what it's for, you are one smart cookie.
Isn't it a part of a microwave. We had things that looked very similar in room last year (like 10?) and they told me it was part of a microwave.

[Jeff Rodriguez]

Yeah, that's a magnetron.
His new robot won't just retrieve your food, it will heat it up on the way.

[thegathering]

Looks like a microwave magnetron.

*edit* oops someone he beat me to it *edit*

[Tristan Lall]

http://upload.wikimedia.org/wikipedia/commons/a/a0/Magnetron1.jpg (http://en.wikipedia.org/wiki/Image:Magnetron1.jpg)
She's absolutely right. It's a magnetron (http://en.wikipedia.org/wiki/Magnetron).

So, what do you need that for?

[thegathering]

So, what do you need that for?
Cooking enemy robots... perhaps soldering on the fly?

[Lil' Lavery]

So, what do you need that for?

Obviously heating your donut while it delivers it to you. :cool:

[anna~marie]

oh oh I know!!!! *feels special*

[Richard Wallace]

http://upload.wikimedia.org/wikipedia/commons/a/a0/Magnetron1.jpg (http://en.wikipedia.org/wiki/Image:Magnetron1.jpg)
She's absolutely right. It's a magnetron (http://en.wikipedia.org/wiki/Magnetron).

So, what do you need that for?Maybe for killing termites (http://www.hi-techtermitecontrol.com/)?

[Bill_Hancoc]

Cooking enemy robots... perhaps soldering on the fly?

A microwave works by exciting the h20 particles in the food creating heat.... so soldering is out.....thats why you cant heat a potato chip in the mircowave

[Andrew Blair]

Microwaves also excite silicon carbide, thats how microwave crucibles work. A portable metal casting robot?

[Cody Carey]

A death-ray?

[Dylan]

Microwaves are built so that the magnetrons will not turn on with the door open, because the radiation is harmful to humans.

That being said, I'm going with Cody's death ray guess. ;)

[thegathering]

A microwave works by exciting the h20 particles in the food creating heat.... so soldering is out.....thats why you cant heat a potato chip in the mircowave
Not enough H2O in the air :(

There still should be enough water in the battery soln. to cook the robots... ;)

[artdutra04]

Microwaves are built so that the magnetrons will not turn on with the door open, because the radiation is harmful to humans.Actually, we've been using microwaves for line-of-sight radio relay communications for quite some time now. Any time you see a radio tower that looks like the picture below, it's actually a microwave radio relay tower. Usually they are painted red and white.

(Actually, it was a technician who was servicing a magnetron that noticed that microwaves "cook" things, as his peanut candy bar became the first microwaved food. :yikes: )

http://www.agpix.com/catalog/AGPix_Aiuppy/large/AGPix_Aiuppy_0161_Lg.jpg

So here's the question: is Tytus developing the world's first Vex space satellite? :eek:

[Alekat]

A microwave works by exciting the h20 particles in the food creating heat.... so soldering is out.....thats why you cant heat a potato chip in the mircowave

First, I gotta try that. :) Second, if microwaves excite H20 then why the reaction with metal?

It seems like any bot safely using a magnetron would be rather large for a vex bot. Unless it's not made to move, but make you're existing microwave more awesome.

[Tytus Gerrish]

First, I gotta try that. :) Second, if microwaves excite H20 then why the reaction with metal?

It seems like any bot safely using a magnetron would be rather large for a vex bot. Unless it's not made to move, but make you're existing microwave more awesome.

metals reflect microwave and raido waves a microwave oven produces a frequincy of 2.45GHZ the wavelegnth is between 12cm and 13cm. thats why your microwave oven at home has a perforated peice of metal in its window. becasue microwaves can't pass through it.

[Qbranch]

You realize that this will omnidirectionally broadcast high power microwaves, right?

:ahh: i hope you wear your lead apron around this thing. along with anyone else in a 50' radius.

by the way, how on earth are you going to power this? they usually take 700~1500w input. (Thats 75~125 amps at 12VDC :yikes: )

just my 2 cents, but, i think this might be a baaaad idea....

-Q

[Astronouth7303]

This will be interesting to watch - over the internet.

Maybe he'll just use it as ballast.

Maybe it's supposed to be puzzling, like my laser. (Maybe I'll use that on a robot...)

[Tim Arnold]

Maybe for killing termites (http://www.hi-techtermitecontrol.com/)?

Cool link, but I opened the site in a background tab and it freaked me out when the SitePal guy gave a booming "HELLO" with my speakers turned up all the way :/.

[Barry Bonzack]

Newest Vex bot? Oh... My. No Tytus, I do not believe this abides by the "Mostly Vex" rule you were asking about in the 1902 Vex Competition (http://www.chiefdelphi.com/forums/showpost.php?p=518890&postcount=29) thread. However, I do believe your robot would damage the field elements pretty well.

[Jeremiah Johnson]

just my 2 cents, but, i think this might be a baaaad idea....

-Q

We're talking about Tytus here. He has a history of not good ideas and bad outcomes.

Burn (http://www.chiefdelphi.com/media/photos/25030)
A Tad Over The Speed Limit (http://www.chiefdelphi.com/media/photos/22125)
Waterjet 1 (http://www.chiefdelphi.com/media/photos/21721)
Waterjet 2 (http://www.chiefdelphi.com/media/photos/21720)
Waterjet 3 (http://www.chiefdelphi.com/media/photos/21718)

And there you go. Have I proven my point? There was one more where he got branded on his arm but I didn't have time to get it.

[Tytus Gerrish]

Newest Vex bot? Oh... My. No Tytus, I do not believe this abides by the "Mostly Vex" rule you were asking about in the 1902 Vex Competition (http://www.chiefdelphi.com/forums/showpost.php?p=518890&postcount=29) thread. However, I do believe your robot would damage the field elements pretty well.

no this has nothing to do with 1902's vex competition. i know better than to beam microwaves at a bunch of kids and sterilize the future of first.

[Greg Needel]

We're talking about Tytus here. He has a history of not good ideas and bad outcomes.

Burn (http://www.chiefdelphi.com/media/photos/25030)
A Tad Over The Speed Limit (http://www.chiefdelphi.com/media/photos/22125)
Waterjet 1 (http://www.chiefdelphi.com/media/photos/21721)
Waterjet 2 (http://www.chiefdelphi.com/media/photos/21720)
Waterjet 3 (http://www.chiefdelphi.com/media/photos/21718)

And there you go. Have I proven my point? There was one more where he got branded on his arm but I didn't have time to get it.

burned with a wrench (http://www.chiefdelphi.com/forums/showthread.php?t=45712&highlight=burn+wrench)

and burned with a blowtorch (http://www.chiefdelphi.com/forums/showpost.php?p=504670&postcount=11)

[anna~marie]

ouch what is this, pick on tytus day?

[Jeremiah Johnson]

ouch what is this, pick on tytus day?


Well actually... it could be. But I don't think so. I just had this information bottled up in this empty brain of mine and was looking for a place to use it. I told one of my coworkers about his experience with the waterjet when we were looking through a magazine and saw an ad for a waterjet.

I have a lot of useless information that is just waiting to be used.

[Conor Ryan]

I Saw this on Engadget today, looks remarkibly similar, and really really, sounds like something Tytus would put on a Vex bot, Researchers create Microwave Drill/Deathray (http://www.engadget.com/2006/08/23/researchers-create-microwave-drill-death-ray/)

http://www.blogsmithmedia.com/www.engadget.com/media/2006/08/microwavedrill.jpg

[Tytus Gerrish]

I Saw this on Engadget today, looks remarkibly similar, and really really, sounds like something Tytus would put on a Vex bot, Researchers create Microwave Drill/Deathray (http://www.engadget.com/2006/08/23/researchers-create-microwave-drill-death-ray/)

http://www.blogsmithmedia.com/www.engadget.com/media/2006/08/microwavedrill.jpg

mabye later, not this time. here's a hint. It has to do with mobility

[lukevanoort]

mabye later, not this time. here's a hint. It has to do with mobility
Steam engine? Seems a little inefficient, if that's what you're doing, but boy it would be cool.

[Tytus Gerrish]

Steam engine? Seems a little inefficient, if that's what you're doing, but boy it would be cool.

not even close. the microwaves are not used for heating.

[Chuck Glick]

not even close. the microwaves are not used for heating.

possibly radar to make a fully autonomus robot?

[Eldarion]

So you invented an antigravity drive based on microwaves? :D :rolleyes:

[Daniel_LaFleur]

possibly radar to make a fully autonomus robot?

Not Likely unless it's used for an outside vehicle. Reason: The reciever of a RADAR must be turned off during transmit (except a noise radar). If it is not then the receiver will be burned out by the transmitted pulse. The 'on-time' for the reciever is long enough that the pulse would already be past it in the confines of an indoor arena.

I, too, am interested in what he is using it for. The magnetron cavity is tuned to a specific frequency (in the case of a microwave ovens magnetron..its the natural frequency of water). So for him to not use it for heating is....interesting, And probably means that that magnetron was never intended for a microwave oven.

[Tytus Gerrish]

it is tuned to 2.45GHZ just like a microwave oven. however supplying different voltages to some magnetrons can produce diffrent frequinces

Modern power tools, automated machine tools, and human-operated power machinery complicate the definition of "machine" greatly. Machines used to transform heat or other energy into mechanical energy are known as engines.

[Qbranch]

We're talking about Tytus here. He has a history of not good ideas and bad outcomes.

Burn (http://www.chiefdelphi.com/media/photos/25030)
A Tad Over The Speed Limit (http://www.chiefdelphi.com/media/photos/22125)
Waterjet 1 (http://www.chiefdelphi.com/media/photos/21721)
Waterjet 2 (http://www.chiefdelphi.com/media/photos/21720)
Waterjet 3 (http://www.chiefdelphi.com/media/photos/21718)

And there you go. Have I proven my point? There was one more where he got branded on his arm but I didn't have time to get it.


OW! :ahh:

i think he needs to go back to chip sweeper status in the machine shop ;)


i have done stupid stuff too, gotten cut on and endmill, ripped my thumbnail with a tuning-fork-looking skate wheel folder, ....

but watch yourself around hot stuff :)

-Q

[Tytus Gerrish]

does anyone know where i could get some small diamater Foil bearings (http://en.wikipedia.org/wiki/Foil_bearing)?

[Jeremiah Johnson]

does anyone know where i could get some small diamater Foil bearings (http://en.wikipedia.org/wiki/Foil_bearing)?

Are you making a Vex airplane?

They were first tested for commercial use in United Airlines Boeing 727 and Boeing 737 cooling turbines in the early- and mid-1960s

[Al Skierkiewicz]

Before we get too crazy here, the microwave used for communication is a relatively low power device connected to some high gain, directional antennas. Most are not harmful unless you choose to climb the tower and stand in front of it. Radar installations create more power than these in the picture. For those of you who are RF inclined, the brass cylinder sticking out the top of the magnetron is actually a 1/4 wave antenna used to couple energy into the cavity of the microwave.

Please Tytus, tell me you were careful when you extracted the device from an oven. There is some really high voltage capacitors that can hold a charge for quite a while that are connected to the magnetron.