DIY Multimedia LED Projector (video manual)

Step 2: Materials and Tools

Here is a list of material I've used to make this projector. Also a list of the tools I've used.


MATERIAL :


-LCD Screen (640x480, view)

-30W High power led (1.8A  16V, view)

-Thermal paste grease (This is to conduct more heat between the LED and the heat sink, view)

-Two Heat sinks. (One for the LED, and the other one to cool the voltage regulator)

-OHP Mirror.

-OHP Fresnel lens.

-Old LCD Projector Lens (If you're using a LCD bigger than 2" you won't be able to use a slide projector lens. I found the LCD projector on the street without light. Some copy lenses are good for this project)

-Some sort of case (I made mine with wood and plywood, but be creative, If you can fit everything inside some sort of metal box, that'll be even smaller.)

-40mm fan ( I took mine from a Mac case I found on the street.)

-20V Laptop charger (4.5A)

-12v PC Speakers

-4 Small washers.

- Paint (only if you decide to paint the enclosure)

ELECTRONICS :

 -LM350 (3A Voltage regulator. Used to power the LED, view, datasheet)
 
 -12V Fixed voltage regulator (2A, view, datasheet)
 
 -5V Fixed voltage regulator (2A, This one is not totally necessary, I used it to make the fan less noisy, view, datasheet)

 - 560 Ohm  Resistor

 -(2) 1N4001  Diodes 

 - 0.1 uf  Capacitor 

 - (2) 10 uf  Capacitor 

- 100nF Capacitor

-  5k variable resistor 


TOOLS :


-Drill

-Dremel with cutting disk and round file tool.

-Hole saw.

-Solder.

-Small round file.

-Pliers.

-Double size tape.

-Masking tape.

-Epoxy

ABOUT THE COST...

I spent about 60 pounds, but I had many parts already. 

The LCD was 22 Pounds
The LED was 25 Pounds
The old OHP was 5 Pounds (mirror and fresnel)
The Electronic components cost me around 3 Pounds

I had all the other parts. The condenser lens was from a car headlight. The heatsink from a old pc processor. The lens came from an old LCD projector.

Comments

[tini_1298]

will this one work i want to work on it and i m just 15
http://www.ebay.com/itm/Piece-Senior-Anastigmat-Camera-Lens-F-4-5-75mm-No-3276-/370638746652?pt=LH_DefaultDomain_0&hash=item564bca741c

[jj.inc]

look what I found http://www.ebay.com/itm/3-5-inch-Color-TFT-LCD-Monitor-EVF-Electronic-View-Finder-HDMI-In-Out-5D-7D-D800-/321057041971?pt=US_Viewfinders_Eyecups&hash=item4ac07dae33
Max. resolution up to1920*1440

[JoeyT2008]

Hi there, your project looks brilliant in comparison to any other DIY projector I've seen, and I've decided to build mine your way, but with a 720p LCD. There are 720p 4.3" Mobile Phone LCD's on ebay for ~£15 but there's no way to drive them, so I'm either going to purchase a 10.1" 720p LCD with controller kit or use my 17" TV I already own. With this is mind, would you suggest an alternative power source? Or would a 50W / 100W LED chip be powerful enough to light the entire screen evenly? If not, what about two or four evenly spaced 30W LED's?

Many thanks, Jordan.

[12rm]

Hi,
Any chance you know what the lumen output is of the projector you made? Or for the example videos you have of your projector?

Thanks

[krioni]

Hi

I wondering if you could send me the links to where you found your stuff. I would like a brighter screen so I will use a brighter LED or bulb but I dont know yet but I know how im going to cool it. What are the demsions of the projected image on the wall?

Thanks

[fnavarret]

Hello newtonn2,
I found a 100w led+driver+reflector+condenser on ebay
heres a link http://tinyurl.com/5t6wpes
Do you think this will work well?
Is it better to use White or warm white for projectors?

This was a great instructable and was the my original inspiration to make
a diy projector.

Cheers!

[newtonn2]

That one looks very good. It should be bright light, not war light. The one on the link is bright light. Good price too.

[osaeed]

can i use a magnifing glass instead of all the lenses so iam using only
lcd
flashlight
mirrors
magnifing glasses
thats it ? what do u think sorry for all these questions lol thanks

[osaeed]

and can i replace the led with very high flash light overall can i only use the lenses n the lcd n flash light

[osaeed]

hi good work but i dont under stand any of these
OHP Mirror
OHP Fresnel lens
and why do we need these

40mm fan ( I took mine from a Mac case I found on the street.)

-20V Laptop charger (4.5A)

-12v PC Speakers

-4 Small washers.
-LM350 (3A Voltage regulator. Used to power the LED, view, datasheet)

-12V Fixed voltage regulator (2A, view, datasheet)

-5V Fixed voltage regulator (2A, This one is not totally necessary, I used it to make the fan less noisy, view, datasheet)

- 560 Ohm Resistor

-(2) 1N4001 Diodes

- 0.1 uf Capacitor

- (2) 10 uf Capacitor

- 100nF Capacitor

- 5k variable resistor

and finaly can you tell me what we can remove from all this i dont want it very accurate i just want it to be able to connect to the pc computer tanks dude

[Samulas]

Hey are this the lents ? http://www.edmundoptics.com/onlinecatalog/displayproduct.cfm?productID=2039

and what size?

[shanu98]

HI...

Overall I would say a nice project with a very effective outcome...

The only part which I find tracky here is "Old LCD Projector Lens"...


Would you be able to guide what could be an alternative in case old projector lens is not available. Or if placement some lenses could prepare a similar kind of zooming projection lens....

Thanks in advance..

[suraj1234]

dear newtonn2
i have gone through your nice work very intresting though i am from india
the stuff could not found in india mentioned in your projector ,could u make
one for me

[satyajitshetty]

Dear Suraj,

If you r somewhere around mumbai you cant these in pune, and besides the screen u can use media player with TV in, and led in Lohar Chawl, and Lens in Pune.....but the tuff is building a box for projector...the pannel cant be found anywhere...

[herehere]

Hello!
Excuse me but where is the second heatsink?

[cauzeneffeckt]

Can i use a projector lense from something like this????? http://cgi.ebay.com/Epson-ELP-7500-PowerLite-7600c-LCD-Projector-tested-/200480986002?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item2ead991392#ht_4377wt_872 Also can i just buy any fresnel lense like the sheets they sell on ebay??? thanks

[Yankoo]

Hi! Nice work :) Can u send me the circuit of LED driver?

[dineshde]

Hallo newton,

Can you tell me whether this LCD screen is the right one ?..cgi.ebay.com/ws/eBayISAPI.dll

Thank you..

[newtonn2]

 That one is not good, Yo need to find one with AV input.

[dineshde]

 Thank you Newton.. I couldn't find a appropriate one so if you came across LC screen with AV input in ebay or so let me now.. 

Have a nice day..

[newtonn2]

 
Something like this should do the job.

Mini 3.5 Inch TFT LCD Car Rearview Color Camera Monitor on eBay (end time 24-May-10 18:11:48 BST)

[noik]

 Where do you buy the fresnel?

[antonbergjr]

ok i ordered the 30 watt led off ebay from china and do i need the driver? i was going to order the -LM350  but i dont know what resister i  need to use can u help me out
i  was just going to run my lcd, fans, led off a laptop charger thats adjustable from 15v to 24v and see if it works. do u think i need to make the driver?

[mmcgowan]

Thank you for this instructable, I have been collecting all the parts for it for about two months now. This is my first project including schematics. My question is, are the 100nF capacitor and the 0.1 uf capacitor the same thing? Also does the resistor have to be 560 ohm exactly or can I add resistors together to make 560 ohms? and lastly I have 12v fixed voltage regulator for the lcd, but mine is a 1A not 2A, does this matter? These all seem to be very basic questions, but I am new to electronics. Again, thanks for the instructable, definitely my favorite one there is.

[marvelousmixinmiguel]

Hello Newtonn2
I just ran across your diy LED Projector.  I'm hoping you could answer my question on the lens.

I found the following on ebay and wanted to know if this lens would work for the project.  It's a project that does not work but parts are in great condition.  Any info is greatly appreciated.

Aspect Ratio:		4:3
Data Compatibility:		XGA, SVGA, VGA, Macintosh® and 1080i/720p HDTV compatible
Image Size (diagonal):		2.5 feet to 18.6 feet
Native Resolution:		Native SVGA 800x600
Projection Methods:		Front/rear, ceiling/desktop
Video Compatibility:		Full NTSC, NTSC 4.43, PAL, and SECAM
Contrast Ratio:		500:1 full on/full off

Display:		DLP™ technology by Texas Instruments
Light Source:		270 Watt SHP lamp, 2000 hours
Projection Lens:		1.25:1 manual zoom
Throw Ratio:		1.61 to 2.0:1

Thanks 

Miguel

[newtonn2]

 If the projector is DLP you can't really use anything to make a DIY projector. sorry. Only an old LCD projector with a lcd of about 3" will allow you to reuse the lens.

[marvelousmixinmiguel]

Thanks for the update Newtonn2.

[jani123]

What is the model number of the LCD screen? I bought a very similar LCD monitor from ebay and it had LQ035NC111, which is only 320x240. Is this one really 640x480?

[newtonn2]

 I have not idea. I don't really know where the casing is to check the number. Sorry you got a bad one, I thought there was only the 640*480 mode.

[jani123]

In the taking monitor apart video at 1:30 there seems to be a sticker behind the lcd element. I hope you did not throw the part with the sticker away.

[newtonn2]

 I will check and see if I can find it for you.

[marvelousmixinmiguel]

It's it safe to say any LCD or DLP projector lens would work fine with this project?

http://shop.ebay.com/i.html?_nkw=as+is+projector&_frs=1&_trksid=p3286.c0.m359

Thanks,

Miguel

[newtonn2]

 NOT! only lens of a LCD projector that has a big lcd like 3" will allow you to use the lens. Maybe other LCD  Projectors with smaller LCD Will allow you to use the lens, but I will not buy one just in case.

[BIGHAIRYDUDE]

hey, i was wondering if i could use 5v pc speakers? also if i could use a movie projector lens? would that work?

[newtonn2]

 You could use the 5v speakers no problem. How is the movie projector lens? What is the focal length and the f stop? If you could send a picture of the lens I may be able to give you more help.

[BIGHAIRYDUDE]

the f stop is 3.5 inch and it is 4 inches long. heres a link...cgi.ebay.com/COATED-ANASTIGMAT-4-INCH-PROJECTOR-LENS-F-3-5_W0QQitemZ150404697367QQcmdZViewItemQQptZLH_DefaultDomain_0

[newtonn2]

That lens will only works with a screen of 2" or less.

[BIGHAIRYDUDE]

o.k but very cool you could start a buisness off of this, I would buy, have you seen the interactive wiimote whitboard instructable, it is awsome, you could use it with this, very cool, very cool.

[oli1122]

 Im planning on using that and my projector co iv always wanted one but they are soo expensive . nice idea good luck :P

[oli1122]

Just thaught i would post this iv ordered a 3500 lumen 20Vbulb. that should be bright enough ???