mounting Optoma HD72

[KevInCinci]

Hi,

I've got an in-wall shelf (just below the ceiling) from my old projector, which simply sat upright on its feet. I bought the Optoma HD72 as an upgrade, but discovered there doesn't seem to be an obvious way to have it work in this position. It seems to only project at an upwards angle, thus putting the picture on the ceiling. It doesn't have any vertical physical lens shift at all. One solution is to simply set the projector in the box upside down. Does anyone know of any problems doing this (i.e. venting or overheating) or have an alternate solution? Any suggestions for how to prop it up in the front in lieu of built in feet on the top side?

TIA,

Kevin

 

[BMXTRIX]

My first concern would be putting any projector into any enclosed space. Look to make sure that not only all the ventilation holes on the projector aren't covered, but that they are getting GOOD airflow to them. A projector that is venting it's hot air to the rear in a cabinet must then have that hot air travel to the front of the cabinet to get out... right past the air intake holes. That is bad.

As for flipping the projector, you can (and I would) always use a proper projector mount like the Chief RPA mount. It can be bolted anywhere you want in the cabinet and gives you the full flexibility to tilt and adjust it as you need to. Then you lock it down so it isn't going to move by being bumped, or if removed, it can be put back right where it belongs.

 

[KevInCinci]

Sorry, I should've offered more details. The box is rigged with very quiet vent fans in the side and rear that have done a great job handling airflow in the past. It's a nice setup, which is why I don't want to tear it up for my new projector. I just wasn't sure if having the top of the projector close to the flat bottom part of the box would be a problem. I didn't think so because the vent fans aren't on that side. It's also built relatively tightly, as it was custom-made for my original projector. There's really not room for the projector and a mount in the box as it is. I tried a Chief RPA mount, but you have to use the extra legs from the universal kit to fit the HD72's mounting holes. That makes it way too thick to fit in the box. I was envisioning making a low-profile fitted cradle (one forward, one aft) mounted on the bottom. The lack of adjustment is my concern with that.

Cheers,

Kevin

 

[Bryce_H]

I used to put my old sony projector upside down on a shelf (with great ventalation BMXTRIX). I went to a hobby store and bought some rubber "feet" with adhesive on the back. Stuck 4 on the top of the projector, fliped it over, went into the menu inversed the image and viola - perfect image.

 

[BMXTRIX]

I like the idea above. There is no reason the projector can't sit upside down and if the box is tight then it should be great.

I am ready to see a few reviews of the 7100 projector which is one (the?) of the first sub $3K DLP HD projectors to include lens shift. If DLP could put a sub $3K projector on the market with the placement versatility of the AE900 or Z4 then I would be hard pressed not to recommend it a fair bit. I would never get a DLP over a LCD if I was forced to use keystone correction though with the DLP. It just impacts the image to much IMO.

 

[KevInCinci]

Thanks for the advice - rubber feet it is. I do have some room in the box to raise the projector a bit, or tilt it, and can adjust the height of the screen somewhat, to avoid keystoning.


Cheers,

Kevin