On Monday, February 10, 2020 at 8:33:01 PM UTC, Brian Gaff (Sofa 2) wrote:
Depends on how stiff the cable you are pulling is. However remember if these
wheels are not capped by a curved piece of something, the most likely
failure mode is the cable jumping off the pulley completely.
Brian

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"fred" wrote in message
...
For various reasons I wish to run a thinnish pull cord via 4-5 pulley
wheels. Does anyone know if smaller pulley wheels offer more resistance
than big ones?

Good point. I intend to use enclosed pulley wheels. The release on the door motor can be let go softly so that will help also