How to mount projector square to screen - AVS Forum
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post #1 of 34 Old 09-04-2013, 09:56 PM - Thread Starter
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Hi,
I am having difficulty lining up my projector to be square to my screen. Does anyone have tips on how to get the mount to be straight and not crooked? At moment I am trying to align the part of the mount that attaches to the ceiling. Would a laser level work?
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post #2 of 34 Old 09-04-2013, 10:01 PM
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Do you have any lens shift? If so, this is much easier.
I used a combination of a bubble level and tape measure, but fine adjusting to be square with the edges of the screen is how I really did it. If you don't have any lens shift, then you need to calculate the exact location that you need and get it there.
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post #3 of 34 Old 09-04-2013, 10:34 PM
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I use a tape measure from the lens to the corners of the screen. Gets you square and the keystone can get the rest. Also make sure the lens is even with the bottom of your screen (top of the screen if its upside down in a ceiling mount). Also try projecting a checkerboard pattern to fine tune it after that.

If your buying a new projector, buy more lumens than you will use. Running it in "Eco Mode" makes your bulb last 20-40% longer and reduces noise and heat.
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post #4 of 34 Old 09-04-2013, 10:37 PM
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This is what I used DLR130K laser distance measurer take a measurement on both sides of
projector mine was out more than 1 inch just in the width of the projector the screen is 100 you do the math
not parallel at all that's where my focus problems were coming from to get level use a torpedo level
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post #5 of 34 Old 09-05-2013, 07:42 AM - Thread Starter
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I have a benq w1070 so no horizontal lens shift. There is some vertical lens shift but I won't be needing it.

Thanks for the idea of using a laser distance measure. I know exactly where I need to place the projector to be center off the screen just was having issues putting the ceiling plate to be straight. I'll try these things out and hopefully should be able to place the plate a lot more straight this time around. I do have a torpedo level but does not seem to help much when using it on the ceiling to see if a line is straight since it needs to be parallel to a wall that it is away from.

BTW, this is the projector mount I got: Projector Mount

After dealing with this one I am now thinking of getting the peerless mounts next time around as those appear to be a bit easier to deal with.
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post #6 of 34 Old 09-06-2013, 08:12 AM - Thread Starter
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Thanks all I was able to get projector up and square to the screen. Also a laser leveler helped a bit as well to make sure that I was aiming to dead center on the screen.
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post #7 of 34 Old 09-06-2013, 03:37 PM
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Quote:
Originally Posted by utee05 View Post

Also a laser leveler helped a bit as well to make sure that I was aiming to dead center on the screen.
Laser? Really??

A string is too lo-tech?
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post #8 of 34 Old 09-06-2013, 10:09 PM - Thread Starter
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Well I had an old Stanley laser level so decided to use that. I don't trust myself with string.
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post #9 of 34 Old 09-07-2013, 09:36 AM
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Yeah, I know what you mean about not trusting strings.

An old flame had me on one for quite a while.
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post #10 of 34 Old 09-07-2013, 08:55 PM
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Just lining up the walls to the house straight in a challenge lol.

Truthfully, do not always trust how straight walls are in a house.

I thought about many ways to try and line up a projector to the screen.

Plumb lines, bricklayers line ?

Has anyone tried to use lasers ? a laser tripod ?

I hope someday the projector makers come up with some software built into a projector that helps people get their projector lined up with the screen unless that already do have that ?
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post #11 of 34 Old 09-09-2013, 09:40 AM - Thread Starter
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That would be useful. I don't trust my lines in the house much either but use them more for reference. My laser level seemed to help a bit to line things up. It looks good to me for the moment.
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post #12 of 34 Old 09-09-2013, 10:35 AM
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It's all math and measurement. No voodoo. Get your left and right so the projector's lens is perfectly centered, and the up and down "pretty close".

If your buying a new projector, buy more lumens than you will use. Running it in "Eco Mode" makes your bulb last 20-40% longer and reduces noise and heat.
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post #13 of 34 Old 09-09-2013, 04:53 PM
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Quote:
Originally Posted by utee05 View Post

Hi,
I am having difficulty lining up my projector to be square to my screen. Does anyone have tips on how to get the mount to be straight and not crooked? At moment I am trying to align the part of the mount that attaches to the ceiling. Would a laser level work?

You might want to check out my blog - HERE.

Ron Jones
Blog + Reviews + Articles: projectorreviews.com
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post #14 of 34 Old 09-10-2013, 08:15 AM
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Quote:
Originally Posted by Ron Jones View Post

You might want to check out my blog - HERE.

Ron, nicely written article and a great aid for first time projector owners. Too bad we don't have 'stickies' on this forum anymore since this is a great reference.

All I Really Need to Know I Learned in Movies

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post #15 of 34 Old 09-10-2013, 08:27 AM - Thread Starter
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Quote:
Originally Posted by Ron Jones View Post

You might want to check out my blog - HERE.

Thanks for the link to your blog. Very helpful to make sure I have everything lined up.
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post #16 of 34 Old 09-12-2013, 01:35 PM
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mine is all whacked out...
screen is centered on the wall level and plumb. however my projector is off set slightly for a solid mount (stud)

i think its the yaw. as i cant get the focus to be solid left to right..
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post #17 of 34 Old 10-21-2013, 03:27 PM - Thread Starter
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Well I finally got a proper screen and noticed that my projector has the problem (image on the right to be exact)


The project has a bit of vertical lens shift to try and help this out so I will try to use that but is that the only thing that could be causing that keystone problem? I know the screen is level as I have checked that while I was mounting it.
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post #18 of 34 Old 10-21-2013, 06:49 PM - Thread Starter
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Actually I have the opposite problem. I modified the vertical adjustment but still see the problem.
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post #19 of 34 Old 10-21-2013, 07:09 PM - Thread Starter
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From further looking I have quite a bit more issues to work through to get the projector image clean. I need to put my new mount on and use that since it is a Chief RPMAU mount that will let me do roll, pitch and yaw adjustments.
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post #20 of 34 Old 10-21-2013, 10:00 PM
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Quote:
Originally Posted by utee05 View Post

From further looking I have quite a bit more issues to work through to get the projector image clean. I need to put my new mount on and use that since it is a Chief RPMAU mount that will let me do roll, pitch and yaw adjustments.

I think your mount will solve your problems just make sure its level

curios'' what projector do you have, your pic of your lcd panel has more squares than mine

maybe just firmware
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post #21 of 34 Old 10-21-2013, 10:06 PM - Thread Starter
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I have a benq w1070 using 1.06FW
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post #22 of 34 Old 10-22-2013, 10:42 AM
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GPS!
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post #23 of 34 Old 01-09-2014, 12:35 PM - Thread Starter
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So after messing with my mount and finaly installing everything I see that the top and bottom do not fill the screen properly. The left and right bleed into the border. What does this mean? What part of my mount is not square to my screen?

Hopefully these images help a bit.



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post #24 of 34 Old 01-09-2014, 03:00 PM
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Is there anyway to get a trapezoid adjustment on the 1070?  I had to mount my projector an inch or so off center, so there is a bit of a pinch on one side.  I am not zoomed all the way in, so I have room for a bit of digital adjustment, but I can't find any way to account for this.  Any ideas?

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post #25 of 34 Old 01-10-2014, 08:34 AM - Thread Starter
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Quote:
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Is there anyway to get a trapezoid adjustment on the 1070?  I had to mount my projector an inch or so off center, so there is a bit of a pinch on one side.  I am not zoomed all the way in, so I have room for a bit of digital adjustment, but I can't find any way to account for this.  Any ideas?

I think you mean keystone? There is an option to do this on the 1070 in the menu settings.
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post #26 of 34 Old 01-10-2014, 01:01 PM
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I think you mean keystone? There is an option to do this on the 1070 in the menu settings.

 

I can only find vertical keystone.  Unfortunately I need horizontal keystone.

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post #27 of 34 Old 01-10-2014, 01:24 PM - Thread Starter
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I can only find vertical keystone.  Unfortunately I need horizontal keystone.

Oh you are correct there is only vertical keystone. You will not find horizontal on the w1070.
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post #28 of 34 Old 04-04-2014, 01:54 PM
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Quote:
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You might want to check out my blog - HERE.


This had good information but the link has changed. Here is the new link. Blog Part 2.

Here is the first part of the series. Blog Part 1.
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post #29 of 34 Old 04-05-2014, 03:58 PM
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With projectors that have any decent amount of lens shift and zoom, precise placement of the mount/projector is not so critical. But what is more difficult, and often ignored or neglected, is getting the lens aligned perfectly parallel to the screen in both the vertical and horizontal planes. If it's off at all, that's when you start getting a non-square image that you can never quite get to align perfectly on all four sides with your screen borders.

When I was installing my Epson 5010, I couldn't find a perfectly flat surface on the body of the projector to set my level on. However, the level could be placed vertically over the front of the lens housing to get the vertical alignment right. Even so, I'm not sure I got it completely level since it's kind of hard to make very precise and very fine adjustments with my mount (especially when you're working by yourself).

But as far as making sure that is aligned perfectly in the horizontal plane, I'm not sure how to do that.

My home theater gallery Epson 5010 Projector, 133" Cinemascope Screen, Klipsch RF-7
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post #30 of 34 Old 04-05-2014, 05:08 PM
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When I did my projector it was easy to get it square. The best way I did it was with a framing square and cheap laser level. I used the framing square at the screen at center top. Then used the laser level to shoot down the square and to where the PJ needed to be mounted. I had my wife just mark the ceiling with a pencil. Then all you need is up down and tilt up or down. Mine was perfect with this method. I was worried by reading that it would be difficult. Also the projector calculator was pretty much right on for PJ height.
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