In article 4a634c24-3cad-43f7-b48e-
, says...


No suprise there, but cheap plastic cogs that lake proper oil or construction tend to make more noise than a finely tuned set.
Basic engineering.


Are you cats that pampered that they need a mechanical doorman
to open the flap for them?

Both the current electronoc flap and the previous magnetic
flap simply have a latch which releases to allow the cat to
push the flap open. One click is all they - and you - hear.

Terry

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