The canadian Dollar is worth a little more now, it went up. YAY!
370$CDN=268.65$USD
so thats around the price im looking to spend. If the case can be made out of sheet metal, i can get that free. SO that would be some extra cash to add on to the price of other things. daytime viewing night time viewing, are the same thingfor me, the room is in my basement which has no windows. So it can be completely dark at anytime.
I can start asking about parts though. If I have certain models in mind. Cause maybe I can pull some strings, and get a discount on some. but thats no garuntee. thanks hertz.
370$CDN=268.65$USD
so thats around the price im looking to spend. If the case can be made out of sheet metal, i can get that free. SO that would be some extra cash to add on to the price of other things. daytime viewing night time viewing, are the same thingfor me, the room is in my basement which has no windows. So it can be completely dark at anytime.
I can start asking about parts though. If I have certain models in mind. Cause maybe I can pull some strings, and get a discount on some. but thats no garuntee. thanks hertz.
I'll be at EDSA Shangrila over the weekend, i could probably pass by HMR to look around for the optics if your shipment hasn't arrived yet.
Thanks for the great tips, like using a transparency in the meantime so as not to damage the LCD. I think it is the best suggestion, as a damaged LCD will set me back a lot.
Quick question, will heat from the light engine damage the LCD?
Thanks talaga partner!
Thanks for the great tips, like using a transparency in the meantime so as not to damage the LCD. I think it is the best suggestion, as a damaged LCD will set me back a lot.
Quick question, will heat from the light engine damage the LCD?
Thanks talaga partner!
thanks for replying, hertz.
compared to some photos of other diyers' projected images, those you posted look better in color and brightness. this may be attributed to the quality of the digicam and the exposure parameters, but whether or not that is so, it's reason enough for me to look in the direction you went.
if you made a bulk order of lcd panels from taiwan, i'd be interested in getting one from you. then i hope to get your recommendations on the optics and light engine.
i could find someone who's on vacation and coming back here to bring the goods over. i'd appreciate if you send me email at mike_diyaudio@bulaga.com to work out the details.
i should be able to source the materials for cabinet and cables from here. and would that be it?
did i miss anything on the materials list? it would be good to start right away.
compared to some photos of other diyers' projected images, those you posted look better in color and brightness. this may be attributed to the quality of the digicam and the exposure parameters, but whether or not that is so, it's reason enough for me to look in the direction you went.
if you made a bulk order of lcd panels from taiwan, i'd be interested in getting one from you. then i hope to get your recommendations on the optics and light engine.
i could find someone who's on vacation and coming back here to bring the goods over. i'd appreciate if you send me email at mike_diyaudio@bulaga.com to work out the details.
i should be able to source the materials for cabinet and cables from here. and would that be it?
did i miss anything on the materials list? it would be good to start right away.
Fonski,
I used fan five times stronger than the one you use for ATX case fan. Its 12v 0.6 amp made by compaq. Bought at SOS surplus store. Normally ATX case fan is rated 12v .12 amp. My lcd max operating temp is 60 degC but of course, the lower operating temp will give it a longer life.
Mike,
Sent you email.
Hertz
I used fan five times stronger than the one you use for ATX case fan. Its 12v 0.6 amp made by compaq. Bought at SOS surplus store. Normally ATX case fan is rated 12v .12 amp. My lcd max operating temp is 60 degC but of course, the lower operating temp will give it a longer life.
Mike,
Sent you email.
Hertz
hi Hertz...congrats on a PJ well done. Juat wondering about the distance between ur bottom fresnel to LCD and LCD to field fresnel. Thanks buddy...
Dewil,
Thanks. My bottom fresnel to lcd distance is 3 inches. I did not split my fresnel. Split fresnel did not work for me.
Although split fresnel produces a more even brightness from edge to edge, unsplit fresnel for me produces a sharper, bolder and brighter image.
Hertz
Thanks. My bottom fresnel to lcd distance is 3 inches. I did not split my fresnel. Split fresnel did not work for me.
Although split fresnel produces a more even brightness from edge to edge, unsplit fresnel for me produces a sharper, bolder and brighter image.
Hertz
Attachments
Hey hertz, still wondering if you might be able to help me out. my above post has the questions i need. thanks.
cjab,
Is it about the sheet of metal?
I believe its possible, but you have to be very careful about insulating your electrical or electronic parts. You can use the insulator use in transformer. You know that maroon color sheet of paperboard (I am not sure if its paperboard or other material type ), i forgot the name. It can easily be bought at electrical/ electronic parts store.
You should really ask the help of a guy that understand electrical circuit. If i am to make one with metal cabinet. i believe i can do it. It just that it will be too heavy.
With regards to your budget, add $100 dollars more and maybe you are on your way to a decent pj. Don't skip on quality parts. You can improve and spend little by little to finally get the best result that you want.
My lcd alone already cost almost $400. If its too high for you. i suggest get those second hand 15 inch xga lcd at ebay. You may be able to get a result better than mine.
If you finished your project with low quality lcd, i am very sure that you will be wanting for more so why not go straight in buying a good one. As I said before be very careful when handling lcd. If your confidence is not that high yet, might as well settle for psone lcd for the meantime. take time to read more and its going to help you a lot.
Hertz
Is it about the sheet of metal?
I believe its possible, but you have to be very careful about insulating your electrical or electronic parts. You can use the insulator use in transformer. You know that maroon color sheet of paperboard (I am not sure if its paperboard or other material type ), i forgot the name. It can easily be bought at electrical/ electronic parts store.
You should really ask the help of a guy that understand electrical circuit. If i am to make one with metal cabinet. i believe i can do it. It just that it will be too heavy.
With regards to your budget, add $100 dollars more and maybe you are on your way to a decent pj. Don't skip on quality parts. You can improve and spend little by little to finally get the best result that you want.
My lcd alone already cost almost $400. If its too high for you. i suggest get those second hand 15 inch xga lcd at ebay. You may be able to get a result better than mine.
If you finished your project with low quality lcd, i am very sure that you will be wanting for more so why not go straight in buying a good one. As I said before be very careful when handling lcd. If your confidence is not that high yet, might as well settle for psone lcd for the meantime. take time to read more and its going to help you a lot.
Hertz
Attachments
Axcell,
Welcome to this forum. I should have told you before to join here instead of writing to you individually.
Well, you know its pretty obvious here is the link for you, Its here in this thread. Page 3 post no.28. Read it all. alot of answer to your question is all here.
BTW that 486 laptop lcd, pls read my response to Fonski regarding his sony laptop lcd.
And with regards to your budget, pls read my response to cjab.
Take time to surf www.bidshot.com you might get lucky one day. There is a lot of bargain lcd over there.
Regards
Welcome to this forum. I should have told you before to join here instead of writing to you individually.
Well, you know its pretty obvious here is the link for you, Its here in this thread. Page 3 post no.28. Read it all. alot of answer to your question is all here.
BTW that 486 laptop lcd, pls read my response to Fonski regarding his sony laptop lcd.
And with regards to your budget, pls read my response to cjab.
Take time to surf www.bidshot.com you might get lucky one day. There is a lot of bargain lcd over there.
Regards
Attachments
Thanks Bro! I learned a lot reading this thread. I also answered ur PM and I hope you can give some pointers regarding my requirements. Did you use the mk3 design? Is there a better one?
I did not know MKIII design pretty well. My design is the most conventional one, Light-fresnel-lcd-projetion lens-mirror.
Ok the answer for the questions i gave to you, here are the reasons why.
1. projection to screen distance- its one of the limitation of diy projector. Because we can not diy a zoom lens yet.
Zoom lens are very expensive that is why our projector to screen distance will be limited.
2. Games vs dvd - if you are a serious gamer, you may want a higher frame rate and higher video resolution. So you should settle for a higher resolution lcd. If not then a lower resolution will suffice. If you are a casual dvd watcher, a vga reslution maybe even enough.
3. concert dvds vs movie dvds- i am an avid concert dvd viewer than a dvd movie viewer. For concert dvds, most aspect ratio is 4:3 while for movies its 16:9. If you are a serious movie viewer, you should consider LCD with 16:9 aspect ratio. Go to www.projectorcentral.com for detailed explanation.
4. you dont have issues about cabinet size so its a plus for you.
5. For 60-70 inches diagonal image, a 150w lamp is enough based on my experience. Less wattage less heat and less electric bill. If you want a bigger image then be ready for 250w-400w lamp.
6. For the budget that you gave ,i believe you now have an idea what to expect of the quality of your pj. Parts prices are known to you.
Hertz
Ok the answer for the questions i gave to you, here are the reasons why.
1. projection to screen distance- its one of the limitation of diy projector. Because we can not diy a zoom lens yet.
Zoom lens are very expensive that is why our projector to screen distance will be limited.
2. Games vs dvd - if you are a serious gamer, you may want a higher frame rate and higher video resolution. So you should settle for a higher resolution lcd. If not then a lower resolution will suffice. If you are a casual dvd watcher, a vga reslution maybe even enough.
3. concert dvds vs movie dvds- i am an avid concert dvd viewer than a dvd movie viewer. For concert dvds, most aspect ratio is 4:3 while for movies its 16:9. If you are a serious movie viewer, you should consider LCD with 16:9 aspect ratio. Go to www.projectorcentral.com for detailed explanation.
4. you dont have issues about cabinet size so its a plus for you.
5. For 60-70 inches diagonal image, a 150w lamp is enough based on my experience. Less wattage less heat and less electric bill. If you want a bigger image then be ready for 250w-400w lamp.
6. For the budget that you gave ,i believe you now have an idea what to expect of the quality of your pj. Parts prices are known to you.
Hertz
building your first projector
Okay,
I have now spent many hours reading all these posts and apparently suffer from information overload. There are only 3,000 variations how to build this thing. However, I am wondering what plans/basic setup to start with where you will get a decent picture and yet not spend a ton of money, or will have to keep upgrading where eventually I would be spending enough money to have just went and bought a brand new one! From researching, I figure you can buy a higher resolution car video lcd panel, a couple of fresnel lens, a projector lens. mirrors, light source and fans for cooling and then it is only a matter of playing with it to get the best focus/keystone correction etc. I am shooting for a 80-100" screen from about 8-10 feet away. I am also wondering about what are the specs of the projector lens I need. Have seen a lot on ebay. The big thing is the lcd panel. My thoughts are using about a 7" lcd panel, a projector lens out of projection TV, fresnels, and I even heard about someone using two fluorex lights (from two worklights at home depot) and some mirrors. I just want something decent to watch dvd and maybe the occasional sports game on weekends! Any help would be appreciated.
I am compelled to manually type a footnote as many of these are comical...so here goes......"I have come here to chew bubblegum and kick ***....and I am all out of bubblegum"!
Okay,
I have now spent many hours reading all these posts and apparently suffer from information overload. There are only 3,000 variations how to build this thing. However, I am wondering what plans/basic setup to start with where you will get a decent picture and yet not spend a ton of money, or will have to keep upgrading where eventually I would be spending enough money to have just went and bought a brand new one! From researching, I figure you can buy a higher resolution car video lcd panel, a couple of fresnel lens, a projector lens. mirrors, light source and fans for cooling and then it is only a matter of playing with it to get the best focus/keystone correction etc. I am shooting for a 80-100" screen from about 8-10 feet away. I am also wondering about what are the specs of the projector lens I need. Have seen a lot on ebay. The big thing is the lcd panel. My thoughts are using about a 7" lcd panel, a projector lens out of projection TV, fresnels, and I even heard about someone using two fluorex lights (from two worklights at home depot) and some mirrors. I just want something decent to watch dvd and maybe the occasional sports game on weekends! Any help would be appreciated.
I am compelled to manually type a footnote as many of these are comical...so here goes......"I have come here to chew bubblegum and kick ***....and I am all out of bubblegum"!
Was at HMR last Saturday. The only overhead projector i saw was a 3M that has no bulb and costs 7,500. Mahal din pala.
I saw in bidpay that you were selling DIY projector for 10,000. What is that? The price of the parts? Like optics and light engine and stuff? You still haven't answered my question on whether you can already sell me fresnel, triplet lens, condenser na.
Thanks hertz.
I saw in bidpay that you were selling DIY projector for 10,000. What is that? The price of the parts? Like optics and light engine and stuff? You still haven't answered my question on whether you can already sell me fresnel, triplet lens, condenser na.
Thanks hertz.
fonski,
can sell u fresnell and projection lens. Items has arrived and will pick up at post office tom. There is delay in condenser lens arrival.
You know, a lot of guys probably has been there before you. I saw last month about 7 units of OHP being sold at 2000 pesos. Of course some parts are missing but fresnell and projection lens are there. But really no guarantee if projection lens is triplet.
That bidshot post is true. That is minus the lcd. But the amount is also enough to build a respectable projector if you are lucky in buying second hand parts.
Right now i believe there is a post for 7 inch lcd there costing 6500pesos only but you have to ask the seller for the model no..
Gigem,
You only need to know the specification for your optics to start your project right? have you studied the focal length calculator? This will help you decide what focal length that you need for projection lens and fresnel lens. And since you have inclination for 7inch lcd, i suggest to review ace liliput projector. I think all you need to know to start your project is all there. His post will help you estimate how much to spend for your project. I can only confidently share my design if we have the same lcd.
Hertz
can sell u fresnell and projection lens. Items has arrived and will pick up at post office tom. There is delay in condenser lens arrival.
You know, a lot of guys probably has been there before you. I saw last month about 7 units of OHP being sold at 2000 pesos. Of course some parts are missing but fresnell and projection lens are there. But really no guarantee if projection lens is triplet.
That bidshot post is true. That is minus the lcd. But the amount is also enough to build a respectable projector if you are lucky in buying second hand parts.
Right now i believe there is a post for 7 inch lcd there costing 6500pesos only but you have to ask the seller for the model no..
Gigem,
You only need to know the specification for your optics to start your project right? have you studied the focal length calculator? This will help you decide what focal length that you need for projection lens and fresnel lens. And since you have inclination for 7inch lcd, i suggest to review ace liliput projector. I think all you need to know to start your project is all there. His post will help you estimate how much to spend for your project. I can only confidently share my design if we have the same lcd.
Hertz
Attachments
Hey Hertz,
!!!!!AWESOME Projector!!!!! Very, very nice job
Just was wondering if you can post some pictures of your frensel and LCD set up. Unless its top secret. 😉 I'm am interested to see how you mounted the LCD with the 20 degree angle and how the light path might have changed from the LCD being tilted.
Thanks very much... You are the man!!!
Zane
!!!!!AWESOME Projector!!!!! Very, very nice job
Just was wondering if you can post some pictures of your frensel and LCD set up. Unless its top secret. 😉 I'm am interested to see how you mounted the LCD with the 20 degree angle and how the light path might have changed from the LCD being tilted.
Thanks very much... You are the man!!!
Zane
fonski,
pls check my thread at
http://www.tipidpc.com/forums/view.php?id=8116
there are 6 pages.
zaner21,
i will post picture of my design later in the night. Sorry i am in a hurry.
Hertz
pls check my thread at
http://www.tipidpc.com/forums/view.php?id=8116
there are 6 pages.
zaner21,
i will post picture of my design later in the night. Sorry i am in a hurry.
Hertz
testing, testing....this is my first time..sorry.....hello hertzblaster.....am from brunei..quite close to your country....maybe you could help me in building one of those projector....i do know what parts i should get but gettin it here is tough esp fresnel and projection lens....maybe you could sell it to me....for a good price though....am still student here....