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BIG diy screen questions and solutions...

Discussion in 'Projectors, Screens & Video Processors' started by Roohster, Sep 30, 2005.

  1. Roohster

    Roohster
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    Hi guys,

    just made myself a fixed screen from blackout material, thought I may as well go for the biggest one I could fit in my lounge, so made it 90" x 51"!

    I couldn't leave it fixed to the wall, as it has to go in front of the tv, so came up with a simple solution... I mounted it on one of those "portable clothes rails" - basically a bigtubular frame on wheels.

    It works a treat, just wheel it into the lounge when I want to use the pj, wheel it back into the dining room when I've finished!

    A cheap and neat solution!
    Fabric £15
    wood for fame £8
    clothes rail £12 (from b&q)

    A couple of questions:

    What's the best way to add a black border? Velvet seems to be the most popular solution, but I cant find any velvet ribbon wider than 1".

    Would grey screen cloth be a better option, or once I start buying "proper" screen material, would I be better off just buying a screen?

    The pj is ceiling mounted, and obviously uses a fair mount of keystone correction.... as a result there is a lot of "overspill" of light below the screen (the "non picture" area) - any way round this? Suppose I could just try mounting the projector on a longer pole....
     
  2. Peter Parker

    Peter Parker
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    I made a frame using 18mm x 44mm wood from Wickes, and then bought some plush black velvet from Ebay (do a search for 'Sorcerer velvet).

    I then cut it into 4.5" strips and glued it to the frame, and that slides over the screen and is a snug fit. I'll also be using the material as masking, so the excess shouldn't go to waste.

    Gary
     
  3. Cmar-Ireland

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    Door frame timber makes a great, cheap screen frame once covered in velvet
     
  4. Roohster

    Roohster
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    And here it is...

    [​IMG]
     
  5. Shadow Jam

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    sorry maybe im just stupid but could you not just paint a black border on?

    (although im still unsure asto why a border is needed, besides the fact it makes it look better)
     
  6. Peter Parker

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    Paint can be used to good effect but black velvet does a better job in absorbing any light spill you may have and it gives a sharper edge.

    Gary.
     
  7. stevegreen

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    I will be looking at making my own screen in the near future, that looks fantastic :smashin:

    Daft question, is blackout material 'white' or 'fawn' in colour. I've never seen any without a picture on it :laugh:
     
  8. Peter Parker

    Peter Parker
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    I think you can get blackout cloth in various colours, including off-white, so try to find one that looks as white as possible. Tale a piece of white printer paper as a reference and see how closely you can match it.

    Gary.
     
  9. stevegreen

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    Thanks Gary. I have seen some superb results from homemade screens on here so I hope to get somewhere near them when I try myself. I have seen 'Foamex' mentioned a few times and have a contact of sorts so I may also look into that more closely :)
     
  10. calibos

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    Fabulous DIY screen you made Roohster2 but good god thats some bad VB you have there. I assume you have an AE700. No wonder the owners were up in arms! Have you learned to live with it or is it a lot less visible in reality and its the camera thats made it look more obvious?

    Found some mild VB on my new AE900 but luckily was able to tweak it out from the service menu.
     
  11. bikersteve

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    Hi people.

    i'm new to this forum but can see there's a lot of fantastic knowledge and good stuff out there !
    Am new member & have been a bit of a Hi-Fi buff / anorak for years BUT just took 1st step into AV world and bought PJ - I now need a screen, ...... I am very able DIY'er but want to make sure I put effort into correct design / aproach -

    So..... guidance / tips etc... please

    Reading the posts i am inclined towards a MDF screen ( will prob use 12mm ? ) as I can fix it permanently to a wall - now the questions ......
    Is it best to paint it ( by small roller i note - but what colour ? what product ? ) or to cover it in some form of material ( what material ? )
    I can see from the posts that the black velvet border is a must ( why so wide ? i note one post suggests 4" width ? ) ... but how do you get the "inner edge" of the border perfectly square.

    I am not that inclined towards the frame idea and stretching a material over the frame - i presume this is the foamex material i have read about on the varous messages ?


    cheers guys & looking forward to getting some further tips

    Steve
     
  12. PJTX100

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    What size? 12mm may be very heavy. I used 6mm.
    Paint, small roller will do, matt white is best. Paint both sides to minimise it warping. Some wooden batons may be a good idea to add bracing.
    I painted mine matt black, that works fine but probably not quite as good as velvet, I imagine the pile absorbs light better. Size-wise it's your call, mine is approx a 3" border all round. Use decent masking tape, project the image onto the white screen as a template! Job's a good 'un.
    No, foamex is a very light alternative to MDF - it looks interesting too. But I imagine it's a lot more flexible so you need to be careful to get it perfectly flat. Stretched material can be as cheap as blackout cloth or quite expensive but effective screen cloth specifically made for the job...PJ
     
  13. PJTX100

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    Congrats Roohster. Not only is that a cracking screen, it's also the best shot of VB I've ever seen. Would you mind me posting a link to it from the PJ forum? Lots of people ask what VB looks like...PJ
     
  14. shahedz

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    that looks fantastic, i think i really need to get a new projector , i could never hope for picture like that in your light conditons, top job :thumbsup:
     
  15. Ewan154

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    Wow :eek: That screen looks really good.
     
  16. Nick_T

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    I'm impressed with how the screen turned out. :thumbsup: I ended up taking the easy route in your situation and have just bought a ceiling mounted screen which pulls down in front of my plasma. I know if I made a DIY screen it would probably take me a year to finish knowing how I am with DIY. :rolleyes:

    Looking at your light conditions and the fact it looks like your flash has gone off I am amazed at how bright your image is and at the same time shocked with the vertical banding as already mentioned on here. Do you have the PJ set to a high brightness setting (Dynamic or something similar rather than a 'theater black' kind of setting)? Or did you stick the screen shot over the top of the photo using photoshop or similar?
     
  17. Shadow Jam

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    i bought sopme of that material, and found one small problem with it.... it was kind of stretchy, which was good, but it also curls alot, meaning i couldnt really fit it properly in the middle of the screen, without gluing it or soemthing...

    what i did in the end was a stapled it onto a long strip of wood, which i fixed on the bottom, this was good...

    i did it whilst i had family guy running so it would be in just the right place. only problem i found was that when i put star wars on the film was running thinner, and despite what screen options i selected, couldnt come up with the same sized image...

    do most people have a moveable black border or soemthing?
     
  18. stevegreen

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    The stuff I have been quoted for is not that flexible, Difficult to describe just how flexible it is, but stretching it would definitely not be an option. And it definitely won't be difficult to get flat, as that's how it's formed.

    I'm not sure how the picture will look when I finally get mine set up, but I am hoping for really good results :) I will make it removable, just incase ;)
     
  19. Shadow Jam

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    can someone please help me with my question, as it looks stupid to be watching with only one side of a frame...
     
  20. Peter Parker

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    Films like Star Wars are in Cinemascope (2.35:1) and your screen is 1.77:1, so you will get black bars at the top and bottom (that's normal). If you can make some top and bottom masking that would work though it can be tricky to do. It's exactly the same on a widescreen TV.

    Gary.
     
  21. Roohster

    Roohster
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    Yeah, the VB is really prominent in that picture... to be honest I don't really notice it that much and I'm generally really pleased with the picture from a £900 projector (yes it is an AE700!)

    In answer to other questions...
    I ended up painting a 2" black border using fabric paint.
    The picture is a bit of a "cheat" - I took one picture using flash to get the room details, then one in the dark using a long exposure for the image.

    Feel free to use this as an example of VB! I'll be famous! :D

    By the way - name that film for five points.....
     
  22. Nick_T

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    Is the film 'The Cell'?
     
  23. Roohster

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    Yep!
     
  24. DORSETAV

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    Any one got any images of how to cut the velvet to cover the mitred corners of a frame made of door frame material ?????
     
  25. Peter Parker

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    That was the tricky part for me - I covered one length of the frame up to where they mitred and finished it of squarely, then cut the velvet on the other adjoining length at an angle and stretched/stapled it so that it gave the impression of being a mitred joint (if that makes sense). It was quite tricky and each corner was done slightly differently. Not easy but it looks OK, especialy as all the velvet tends to blend into itself.

    Gary.
     

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