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Tube face to lens mount distance

 
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racerxnet



Joined: 20 Jun 2007
Posts: 362
Location: Illinois

Posted: Fri Sep 07, 2007 7:28 pm    Post subject: Tube face to lens mount distance

Hi Everyone,

Can someone please tell me the Green tube face to lens mount plate distance. I will be able to measure with a T gauge to within .001 distance on all four corners. If you have any other tricks please feel free to share with me on this rebuild. How about the Red and Blue mounting plate?

I read that some have used a mylar sheet on the lens for centering? Is this a good idea? And on what surface is this applied to? Any and all help is appreciated..


MAK

Sorry I did not give the model: M8500 A/C with HD-8 lenses for the moment. It has the stig board.


Last edited by racerxnet on Fri Sep 07, 2007 8:14 pm; edited 2 times in total
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Tim in Phoenix



Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix

Posted: Fri Sep 07, 2007 7:52 pm    Post subject:

Hello

What projector?
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AvgOrdinaryGuy



Joined: 03 Dec 2006
Posts: 123
Location: Northeast Arkansas USA

Posted: Fri Sep 07, 2007 9:20 pm    Post subject:

I'm not sure, but I think the screen size will affect the spacing also. Also the throw angle will affect the spacing. The green will have slightly different spacing at the top and bottom, while the blue and red will be different at all four corners.
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Tim in Phoenix



Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix

Posted: Fri Sep 07, 2007 10:19 pm    Post subject: Re: Tube face to lens mount distance

racerxnet wrote:
Hi Everyone,

Can someone please tell me the Green tube face to lens mount plate distance. I will be able to measure with a T gauge to within .001 distance on all four corners. If you have any other tricks please feel free to share with me on this rebuild. How about the Red and Blue mounting plate?

I read that some have used a mylar sheet on the lens for centering? Is this a good idea? And on what surface is this applied to? Any and all help is appreciated..


MAK

Sorry I did not give the model: M8500 A/C with HD-8 lenses for the moment. It has the stig board.



The default gap between the aluminum plate holding the tube face, and the plate holding the lenses, is 17mm and will vary after you adjust top/bottom and side/side focus. One of the allen bolts on each tube should be capped so that corner stays 17mm.
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psilvest



Joined: 27 Jan 2007
Posts: 44


Posted: Sat Sep 08, 2007 2:30 pm    Post subject: Re: Tube face to lens mount distance

Tim in Phoenix wrote:


The default gap between the aluminum plate holding the tube face, and the plate holding the lenses, is 17mm and will vary after you adjust top/bottom and side/side focus. One of the allen bolts on each tube should be capped so that corner stays 17mm.


Is it 17 mm for all Marquee models?

Thanks

Pier
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aspec2



Joined: 10 Apr 2006
Posts: 549


Posted: Sat Sep 08, 2007 3:52 pm    Post subject: Re: Tube face to lens mount distance

psilvest wrote:
Tim in Phoenix wrote:


The default gap between the aluminum plate holding the tube face, and the plate holding the lenses, is 17mm and will vary after you adjust top/bottom and side/side focus. One of the allen bolts on each tube should be capped so that corner stays 17mm.


Is it 17 mm for all Marquee models?

Thanks

Pier


All AC Marquees.

Walt
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