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mx83toy
Joined: 14 Dec 2012 Posts: 322
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| Posted: Thu Aug 29, 2013 1:47 am Post subject: |
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and some mounting plates for my 145's
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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| Posted: Thu Aug 29, 2013 2:19 am Post subject: |
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| ecrabb wrote: | | jbmeyer wrote: | | Now we just need to figure out how to position them while they are in the same orientation as if hanging on the ceiling.. |
I still don't understand why you guys want to turn it upside down on the floor. Just put space it up to the same offset to screen center as it will be when its on the ceiling. The projector doesn't care which orientation it's in.
SC |
one reason and the main reason. the blend area will be pushed towards the center of the tube so i will be shifting the image as far to the right on the tube face . So when its flipped over the orientation now changes, and yes you might think it doesn't matter but I have found it does. I went through it the first time and found out because of that I did not make the locations correct( because of the flip not the calculations) and the PJ's were too close to each other. it altered the overall size to slightly smaller.
But Justin and I talked a little while ago and I decided not to use as much phosphor as I did the first time. I will leave much more so i have wiggle room on the tube face to either enlarge , shift left to right or up and down. you have to remember the PJ's are not level to the center of the screen so keystone comes into play. So now the trapezoid also flips, and then the vertical location of the image comes into play, I might not have enough tube area to move the image to get it to fill the screen, then raising and lowering the PJ comes into play which I would love to avoid . When I first did the blend I had to take down the PJ's and move the mounts to fix what I thought should be correct . I too thoguht exactly as you are Steve but physically doing it proved me wrong. Take off next wed and come help us !
Nashou
_________________ Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
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jbmeyer13
Joined: 03 Dec 2010 Posts: 1135
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| Posted: Thu Aug 29, 2013 2:43 am Post subject: |
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| ecrabb wrote: | | jbmeyer wrote: | | Now we just need to figure out how to position them while they are in the same orientation as if hanging on the ceiling.. |
I still don't understand why you guys want to turn it upside down on the floor. Just put space it up to the same offset to screen center as it will be when its on the ceiling. The projector doesn't care which orientation it's in.
SC |
For the blend to be optimal the raster's are not centered on the tube fac. If you set them up while sitting on the floor and then flip the PJ when mounting on the ceiling you'll likely have everything backwards. For it to be correct, the left PJ will have the raster shifted so that the left edge will be right against the left edge of the tube face and the right PJ will have the raster shifted so that the right edge will be right against the right edge of the tube face. There's two advantages in doing this:
a) you have room to manipulate/tweak the raster in the blend zone
b) with the raster edges that overlap in the blend zone not at the edge of the tube face there will be less distortion and it should be easier to achieve perfect linearity at the center of the image. I'd also suspect that the phosphor is more even the further you move away from the edge.
_________________ Projector: Modded 9501LC ULtra- MP VIM, Vold VNB, ETECH LVPS, Silver VIM Cables, HD10F's & a V1 case!
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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| Posted: Thu Aug 29, 2013 3:23 am Post subject: |
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I concede Crabb is right on this one. I tried but realized to do it the PJ have to be up on the ceiling. So I will have to flip the PJ over and set it up as a floor mount then flip over again. I will have to just compensate. One thing though is I will have to move the PJ's way way back. I estimate between 24-30 inches!!! That means the unistrut in the ceiling will not cover the move back. I'll have to remove it all and remount into the ceiling, that is a big time killer!!!
So one thing We could do is set up the left PJ on the floor then mount it in the right PJ on the ceiling, this way the shifted off center will go to the correct side then I just swap the video and tweak it form there. No sweat !
Nashou
_________________ Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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mx83toy
Joined: 14 Dec 2012 Posts: 322
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| Posted: Fri Aug 30, 2013 1:50 am Post subject: |
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man that looks sharp as already!!!
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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AnalogRocks Forum Moderator
Joined: 08 Mar 2006 Posts: 26706 Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Mon Sep 02, 2013 4:03 am Post subject: |
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That looked wayyy to easy
_________________ Tech support for nothing
CRT.
HD done right!
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fuchs
Joined: 27 Jun 2012 Posts: 153 Location: the NL
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| Posted: Mon Sep 02, 2013 10:27 am Post subject: |
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Wow, that looked easy indeed. I bet all the work before that was not.
_________________ onkel fuchs' cheapskate cinema
NEC plain 9PG
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jbmeyer13
Joined: 03 Dec 2010 Posts: 1135
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| Posted: Mon Sep 02, 2013 2:00 pm Post subject: |
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AWESOME!!
_________________ Projector: Modded 9501LC ULtra- MP VIM, Vold VNB, ETECH LVPS, Silver VIM Cables, HD10F's & a V1 case!
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Spanky Ham
Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central
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| Posted: Mon Sep 02, 2013 5:07 pm Post subject: |
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That was close to what Clarence did with his G90. When I saw the video, I immediately thought of my drywall lift. If I keep and install the G90 on the ceiling, then I will put pj on the lift and wheel it into place.
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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| Posted: Mon Sep 02, 2013 6:59 pm Post subject: |
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Yeah those Pulley mounts Rock!!! I wish they made them out of aluminum, it be much lighter. The top half has to be about 20-30 pounds and holding it in place by yourself gets tiring real fast.
So for the right PJ i plan to just lower it remove the tubes add the 9 inchers. Then remove the mount and use the left PJ mount location as the measurement points for the 2nd mount as Steve suggested earlier. I got close here on this one with a very rough
measurement method.I might have it all done before Justin gets here next week
Nashou
_________________ Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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bbfarmht
Joined: 27 May 2006 Posts: 1273 Location: Where the Mississippi runs east to west!!
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| Posted: Fri Sep 06, 2013 7:56 pm Post subject: |
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Nice to see your hard at it , Nash!!!
_________________ Adam
"Any society that would give up a little liberty to gain a little security will deserve neither and lose both"
Benjamin Franklin
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ecrabb Forum Moderator
Joined: 13 Mar 2006 Posts: 15909 Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Fri Sep 06, 2013 8:10 pm Post subject: |
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ADAM!!! What up, mang??!!? How goes it? Haven't seen you in eons!
SC
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bbfarmht
Joined: 27 May 2006 Posts: 1273 Location: Where the Mississippi runs east to west!!
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| Posted: Fri Sep 06, 2013 8:29 pm Post subject: |
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I've been hiding laying low incognito, and other variations of that thought.
_________________ Adam
"Any society that would give up a little liberty to gain a little security will deserve neither and lose both"
Benjamin Franklin
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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bbfarmht
Joined: 27 May 2006 Posts: 1273 Location: Where the Mississippi runs east to west!!
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| Posted: Fri Sep 06, 2013 10:17 pm Post subject: |
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I feel soooooo bad!!!!! I'm on priceline right now booking tickets. Even its not the right time for ya I'm on my way.
_________________ Adam
"Any society that would give up a little liberty to gain a little security will deserve neither and lose both"
Benjamin Franklin
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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