
The ten hard truths of machine vision.
– Anonymous
Location is everything – that is, the location of lighting,
location of the cameras, location of the fixturing, location of
the debris/oil on parts, etc.
The 80/20 rule – 80% of your project labor will be spent on
the last 20% of the job.
There’s probably an easier way – in many cases,
machine vision can be replaced or augmented with other
sensing technologies that may work differently, but equally
well.
Vision bites back – vision projects can have more natural
variability than other controls projects and often surprise
newcomers with the extent of the discovery period and testing
required to develop a project specification.
Murphy is watching so work with Pro’s – assemble a
team that contains specialists in I/O, optics & lighting,
control, vision programming, mechanical design, networking,
etc., to support the deployment.
Orders of 10 – a new phenomenon, thought to be unlikely
or impossible, will emerge at roughly 1,000 parts, 10,000
parts, 100,000 parts, etc.
If the plant doesn’t want it, it won’t work – day to
day buy-in from process and maintenance staffs is critical to
the successful deployment of any project, but especially so for
vision systems that typically require PM.
Shift Happens! – a client who believes that the properties of
parts will not shift or that process variability is completely
understood (prior to a study with real optical gear) is quite
possibly being naïve.
Cheap gear costs double – components chosen on price
typically disappoint the whole team.
Miracles out of nowhere – in many cases, a technology
applied in a different industry can hold the key to a novel or
breakaway approach to your application.