I'm researching iris mechanisms with the goal of building a functioning, weather-sealed door. I am learning much as I go along, but am faced with a challenge in nomenclature (I am not an engineer).
I am using Google to search for non-overlapping iris mechanism designs that have the smallest possible distance from the outer edge of the opening to the outer edge of the 'housing' (the word that naturally comes to me to describe that part of the device) - but I am stumped about how to narrow down my search results.
Using the terms "small housing", "narrow housing", "smallest perimeter" etc are not proving to be useful when searching. No meaningful changes in the search results (and there are a gazillion results - I didn't know this mechanism was so popular in the DIY home-cnc world). "Enclosure" and "concealment" do not seem to impact the results much either.
Can anyone advise me on what terms I should use that will enable me to narrow my results? <--- THAT is the question being asked.