The_Gnu's Lilliput projector (lot of pics) - Page 3 - diyAudio
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Old 14th July 2006, 06:54 PM   #21
cchance is offline cchance  United States
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the 12.1" is laptop so it needs a controller ... i getting it from ebay... from a dell 700m ... i found the company that makes them but dont have it here....

as for the 15.4 yes its the synaps from walmart im praying it can strip properly
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Old 14th July 2006, 10:09 PM   #22
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Good luck with the synaps monitor. Ive been looking at that monitor for a few weeks now but my current projector REALLY doesnt need to be replaced (it works really well). One of the main reasons i wanted to convert to that monitor is not only the 720p but the fact that you could replace it with a 15.4" 1920 1200 laptop monitor + controller later. Even though xga projectors are going down in price 720p and 1080p projectors are still very pricy. Keep me updated on the stripability of the synaps monitor.
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Old 22nd July 2006, 09:46 AM   #23
cchance is offline cchance  United States
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exactly the reason im doing it as well... i want a 1080p but dont have the 250$ for the lcd and the 400-450$ for the good controller... this way for 150 i get a lcd that doesnt need a controller and has an easy path to the 1080p later when i get cash PM me your MSN or Y! and we can chat some time... that we stop hijacking gnu's thread hehe
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Old 25th July 2006, 04:39 PM   #24
The_gnu is offline The_gnu  Sweden
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Thank you all for your nice and encouraging comments
...I have been a little bit lazy with the updates here at diyaudio. Anyway here is the next one.
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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/GNU
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Old 25th July 2006, 05:01 PM   #25
VT67 is offline VT67  Belgium
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You're putting quite some elbow grease into that project! Excellent job so far

Regards
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Old 25th July 2006, 05:45 PM   #26
rob1231 is offline rob1231  Canada
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Yeh you are making one hell of a pj. Keep up the great work!
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Old 29th July 2006, 12:23 AM   #27
The_gnu is offline The_gnu  Sweden
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Im glad to hear you like it. Been working on this creature for a long time now. Started searching for parts and planing about 2 years ago and It's only the finnishing details and electronics left to fabricate..

Here is some more pictures.

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 3-5 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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The ballast is mounted to the bottomplate with 6 screws. 2 vissible on that aluplate on the side of the ballast 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
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Old 29th July 2006, 12:49 AM   #28
rob1231 is offline rob1231  Canada
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sweet, this really makes me want to start again. Just dont know where to get all the parts and stuff. Can you please post some sites where you got lenses and stuff. Many thanks, Rob
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Old 29th July 2006, 04:07 AM   #29
cchance is offline cchance  United States
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fresnels you can get from 3dlens.com or lumenlabs depending on the focal length you want.... i'd say to go with http://www.diyprojectorcompany.com/ has a cheap triplet that many have compaired to the pro lens from lumenlabs... just at about 1/5th the price for a ballast light if your going big i'd suggest the t15 from lumenlab with a magnetic ballast m59 (ebay) or an eballast if u have the cash
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Old 30th July 2006, 01:08 AM   #30
The_gnu is offline The_gnu  Sweden
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Quote:
Originally posted by rob1231
sweet, this really makes me want to start again. Just dont know where to get all the parts and stuff. Can you please post some sites where you got lenses and stuff. Many thanks, Rob

"want to start again...." have you got some unfinished project laying around.. what made you stop? I don't know to much about all the parts i have to admit. I'n the beginning I was searching for parts in different places but then I realised that ,since I wasn't shure if the parts would fit together, it would probably be best to buy all the parts together. All of my parts are bought from www.exclusiv-online.com. That way, I was shure that all the parts would fit together. But if your planing on buying separate parts. I recomend you talk to cchance, as I bet he knows more about that than me :P
Good luck with you project if you choose to start again..

/GNU
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