Introduction: Build a Small Electric Fan From a Scrap Microwave Oven

Hi There, 

Did you know we can salvage lots of item from an Old Microwave Oven? Yes we Can!

First, there is that large transformer which we  can convert to an electric welding machine.

Second, there is a small gear motor ( that turns the carousel) where we can use for a slow speed projects like a mirror ball motor..

Third, a microwave oven has this heavy duty blower fan, where we can use as an mini desk fan, this is where our instructables is featured..

best for those who are into renewable energy, this project does not consume lots of energy..

follow on....

Step 1: Materials and Tools Needed

Materials:

1. old microwave oven.
2. any small LCD monitor stand or the like! i am planning to build one out of wood for a more pleasing design.
3. AC line cord with plug. i salvage one from a dvd player.
4. AC line cord switch. i used an AC plug adapter with switch.

Tools Needed.

1. Screw driver set. (to dismantle the Oven)
2. Wire cutter and stripper
3. Soldering iron and soldering Lead.

Step 2:

Instructables!!!

Very simple! distructables the Microwave oven...remove the small cooling fan. 
mount the fan on any suitable stand..solder a line cord to the two ac terminal, add 
switch if preferred.

save other microwave parts for other projects!
1. the big transfomer
2. small gear motor
3. small bulb with receptacle
4. lots of microswitches.
5. touch panel or timer switch
6. Electronic board if available.
7. pyrex round plate.
8. lazy susan roller.
9. etc, etc.

Step 3: Another Oven for Parts!

Next Victim!

Comments

author
ThisGuyLovesToBuild (author)2016-03-17

the transformer, mine is bare, no insulation

author
ThisGuyLovesToBuild (author)2016-03-17

I made it and it is really great. When I first pulled the fan out of the microwave before reading this, I was amazed that the 120-12volt transformer was build in to it, but I needed as stand idea and needed to learn how to insulate it. How do I insulated the t

author
Cajamarcawarrior1 (author)2014-12-01

Hi profpat! It's a nice project.
I also removed the spareparts of an old microwave oven. I want to use the fan as an exhaust fan (smoking issues). Yet, I am not sure about the voltage. Do I need any additional transformator, resistance etc. before I connect it directly to the 220V house plug?
Cheers.

author

Hi There, if the microwave is 220 VAC, it is a good chance the fan inside is also 220 VAC.. but if the microwave is 110 VAC, you may need to use a stepdown transformer to use it on 220 VAC mains.

author
ARJOON (author)2011-06-18

i already made one last year using a helping arm and a testube holder. i replaced the motor with a 12 small motor just to avoid insulating wires etc because 12v is way to low to get a shock from this small project

author
app0 (author)2011-02-07

to photo in step 1:
MMM... SPAM! :))

author
mnmc10 (author)2010-09-05

you can also use the geared motor of the rotating tray to turn a whole bbq chicken.

author
profpat (author)mnmc102010-09-05

Great Idea! another reuse of the geared motor..

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