BT-300 part failure
Picked up my
BT-300's and noticed the nose bridge and sun shade were no longer attached. A quick examination revealed the plastic part which retains the nose bridge and to which the shades attached had failed. I'm not sure how this happened as the glasses have not been mistreated and are kept in the case when not in use. As you can see in the picture, the plastic part that failed is retained by three small Phillips head screws marked by the arrows in the picture. It should be a two minute job to replace the part, so I called Epson tech support to get a replacement part.
They confirmed the part number of the failed part to be 1699954, but they had none in stock. Since the glasses are new, they are sending a replacement set under warranty.
In my opinion, the failed part is poorly engineered as all the stress of the sun shade is concentrated in the hole in the center of the part. If either end of the sun shade is "tweaked", the lever action could easily cause the failure. A metal part would probably have avoided the issue, but might have cause the plastic retainer on the shade to have failed.
I think repeated failure of this part is likely. Epson had me contact Russ at compassmicro.com to order spares for when this happens again. The part costs $1.98, but Compass has none in stock and estimates a two month wait until they can obtain stock. Other users might want to consider having a spare on hand for what may prove to be a common failure point.
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