pic: Secret part of my newest vexbot

[Chuck Glick]

Originally Posted by Tytus Gerrish

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?

[Daniel_LaFleur]

Originally Posted by SirCharles982

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

Originally Posted by Wikipedia.org

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]

Originally Posted by Budda648

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

Burn
A Tad Over The Speed Limit
Waterjet 1
Waterjet 2
Waterjet 3

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!

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?

[Jeremiah Johnson]

Originally Posted by Tytus Gerrish

does anyone know where i could get some small diamater Foil bearings?

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.