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Widescreen Projector, update: DEC 12 - 2006

Discussion in 'Project Logs' started by The_Gnu, 26 Apr 2006.

  1. microcf

    microcf New Member

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    The_Gnu.. kom igen nu.. visa lite nya bilder!! :)

    for all those who really think they dont understand Swedish..;

    The_Gnu.. come on.. show some progress!! :)
     
  2. taliban_raider

    taliban_raider Just some guy; you know

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    Looks incredible, keep up the good work :dremel:
     
  3. The_Gnu

    The_Gnu 8-bit addict

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    Yes I have looked at both those sites and have had many ideas. This is currently the zoom mechanism I'm working on.
    The triplet lense is attached to the see through white parts that will be fabricated out of 2x13=26 mm plexi.There is 4 7mm holes in the plexi that will allow it to slide back and forth on the four 7mm steel rods. In the pics you can only see 1 thin spacer for the triplet, but I will also ad a larger one to increase the space .
    I thought this zoom mechanism would be an easy task but it was really hard. The holes can't be of the exakt same dimension as the rods because then it will be a verry tight fit. And the holes can't be to large either because then the whole plexi part can twist a little bit and jam because of that. And the four steel rods need to be in a perfect vertical angle or the whole thing will jam.. ..
    Any sugestions on any easy zoom mechanisms would really be helpfull.
    (it needs to be able to slide ~5 cm)
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    Here is the 13mm plexi I got for free. It's from when we rebuilt at the supermarket I was working in. Its a cashregister "booth".
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    cut a piece and drilled a hole in the middle that is threaded and inserted a cut of bolt.
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    This is How I started to create the round shape for the triplet lense spacer.I attached the plexi to my drillpress and used a normal saw. The larger ones that you normaly cut wood with. Make shure not to press the sawblade to hard against the spinning plexi, as it will "cut" and you can hurt yourself or damage the plexi.
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    after a while i could move down to the file and at last the sandpaper.
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    I used a razorblade to pres against the top while spinning to mark where i was going to create a hole. The 3 smaller holes are for the triplet to attach to.
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    I drilled holes in a cirkle and removed the middle section. Trimed down the edges with this dremel ad on. Its a sandpaper brushing weel.
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    I have also made a second smaller spacer for the triplet lense in the same way.
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    triplet lense with small spacer.
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    Cut a hole in the front plexi plate for the triplet.
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    The fit was perfect... those ugly bolts will not be visible in the end.
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    Here I cut a fan hole in the bottom plate to blow air in to the lamp from below.
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    I am doing my best to get this projector finnished in 2 days. Because I have a "movienight" coming up;). But i doubt I will make it as there is always some problems popping up.There is also a lot more pictures to upload.

    /GNU
     
    Last edited: 29 Jul 2006
  4. jaguarking11

    jaguarking11 Peterbilt-strong

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    This is a great project. Everytime I see it it gets better. Awsome work.

    Keep at it.
     
  5. Al_Cap0wnage

    Al_Cap0wnage New Member

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    YAAAY! An update... Looks like its coming along really well, good luck in getting it done in 2 days though :D
     
  6. OldY

    OldY New Member

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    That looks absolutely fantastic!!! Hope you get it up and running okay!!!
     
  7. olly_lewis

    olly_lewis New Member

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    Great work with the precise cutting of the plastic...
    Because all that hard work will be for nothing if its off by a few millimetres and does'nt work... but you've got it handled and your work is very meticulous...
     
  8. The_Gnu

    The_Gnu 8-bit addict

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    Typical...as I thought, problems seem to like me :) Both the drill and the threading tool broke :waah: So ready in 2 days didnt happen...no good to hurry. I'm of for a trip now but will give it a try next week again.

    /GNU
     
  9. scifi3018

    scifi3018 Member

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    Wow, that is amazing worksmanship for those spacers.
     
  10. alexdcd

    alexdcd Laptop Specialist

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    Gods Speed m8, hope you get it running in time and it doesnt kill any bulbs. I am a little worried about the number of inlet/outlet fans on the case, are they fairly quiet? , that would be a nightmare having such a slick case and all that noise.
    Great progress so far, it might take a while but at least you are creating custom parts and you must be learning a hell of a lot in each aspect like bulbs and lenses.
    Great work so far :thumb: :thumb:
     
  11. CrazyModder

    CrazyModder New Member

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    Your worksmanship :jawdrop: ...great job.....subscribe
     
  12. The_Gnu

    The_Gnu 8-bit addict

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    The fans I will be using are 2x silent zalman 80mm slimline. They will be at 5-7V each. The larger 120mm fan is a silent ADDA. It is very quiet so i don't think the sound will be any problem. I am more worried about the fans not cooling enough. If thats the case I will switch the 120mm ADDA with a more powerfull 120mm. Yes you learn alot with a project like this, especially about materials like alu and plastic. But What I have learned the most is that making a detailed blueprint would have saved me a lot of time and work.

    /GNU
     
  13. The_Gnu

    The_Gnu 8-bit addict

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    I have been on vacation for some time, but now I'm back and I have purchased new sandpaper and drillbits so it's time to get this thing done.

    Marking out where im going to mount all the connectors and the power switch.
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    Here it is all mounted. You can see the VGA connector is attached with regular screws. These will be changed for normal connector screws so that you can secure the connector. The reead and black connectors are NOT for sound, they are for AV1 and AV2 video IN. There will be no speakers in it at all. Don't think that will be needed because all audio will bee connected to the sorround system.
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    Time to mount the ballast for the 250w lamp. It is very very heavy. Around 5 kilo I would guess. So I relly want it to stay in place and this is how I mounted it.

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    Fabricated 2 pieces of plexi that will act as a stand for the ballast. They will be secured to the ballast and then too the bottom plate from underneath.
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    This white thing is the ballast.
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    Don't know if you could understand it, but the ballast is mounted to the bottomplate with 6 screws. 2 vissible on that aluplate on the side and 4 non vissible underneath that is secured into the 2 pieces of plexi. Now that big heavy thing won't move at all.
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    That's it for today. Will be back soon with more.

    /GNU
     
    Last edited: 22 Jul 2006
  14. nightmare03

    nightmare03 New Member

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    I think this is my first post?

    Kick ass work, looking forward to more updates! :D
     
  15. smartdude24

    smartdude24 New Member

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    I agree :) wicked PJ Gnu!

    You actually inspired me to get into building one of my own... which I am currently working on. It's a 15" Haas design.

    Can't wait for more updates!
     
  16. omicron

    omicron Baud.

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    Finished to the highest quality - I was impressed by the fan hole, for god's sake!
    Very nice mate. Look forward to seeing this grow.
     
  17. hydro_electric_655

    hydro_electric_655 Dremelly Dude

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    At the least this thing will come out with a perfect case.
     
  18. The_Gnu

    The_Gnu 8-bit addict

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    Thank you for giving me your first post :thumb:

    Thx to you too, it's always nice too hear you have inspired someone to do something similar. Please, send me a link if you post your pics on the net, would really like to see it :)

    Thx to all you other to for your encouraging comments. :rock: Will hopefully have some pictures of the button mechanism tonight if nothing unexpected turns up.

    /GNU
     
  19. The_Gnu

    The_Gnu 8-bit addict

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    The next update is a little bit late, I was working on the buttons when I suddenly desided to try a new zoom mechanism. I didn't tink it would work any good but I had to give it a try. I didn't stop until it was done 5 hours later and It turned out much better than I could possible expect. It is totaly different from the one shown earlier and it's way easier to fabricate. Will post the pics of the buttons and the zoom mechanism by then end of this week.

    /GNU
     
  20. davidbacsik

    davidbacsik New Member

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    that vga setup? What exactly do you call it, and where can I get one?

    AMAZING project by the way. I may use the brushed metal/bending to create a stereo unit for a SliMP3 type device i'm creating.
     

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