Only conditionally recommended mount

Now this mount fits with the 3-legs first well on my Acer Beamer H6520BD - that's why I bought the. And also the extraction arm seemed reasonable to me - because that brings me ewas deeper from the ceiling away, and the projector should be flexible einrichbar.

But what nobody says is that the quality of the mechanics of these pull-out is mieserabel. More precisely, the adjustment at the bottom. Because one has to adjust the projector exactly right mechanically. And here it is so that even when you get adjusted to this setting only on the device. One can not apply as firmly the screws - the track has about as much game that the projector but can move back and forth. Not nice when you set up the projector, and unnecessary because the parts actually are all made of metal. Because it could have been the cheaper option done.