On Fri, 21 May 2021 14:15:03 -0400, "Jim Wilkins"
wrote:

"Richard Smith" wrote in message ...
Ned Simmons writes:

...
This is crucial to the test - for the peak force to be known and constant.
Would this device settle down to triggering at a very constant
pressure, do you reckon?

-----------------

I don't know about that valve but I do have lots of R&D experience on
difficult projects.

Generally you design and build what you predict (hope) will work, then
measure and correct until you run out of time, money or patience, and
declare it "good enough". The limit is how accurately you can measure.


It's easy to run out of all three quickly fiddling with a new
hydraulic design. They're messy, difficult to change, and often don't
allow easy access to the parameters you'd like to measure when
debugging.

--
Ned Simmons