The problem with the cheap webcams is all the frame averaging they
automatically do. I regularly see decent machine vision camera bodies on
ebay for ~$100 that won't have this issue. A decent lens is about the
same used.
These pics were all taken with a cheap USB microscope ($50) that was
near useless when there was any motion:
https://imgur.com/2B3j01S
https://imgur.com/QU0ka4r
https://imgur.com/IFdlrj3
https://imgur.com/XKRdpFK
This was of a 50um gap between some caliper jaws. Sobel edge detect filter.
On 3/12/21 1:40 PM, Ralph Stirling wrote:
I had in mind emulating the concept with Linuxcnc
and low-budget cameras and probes, not forking over
for the German luxury model. I see on eBay cheap
part locating cameras, like this:
https://www.ebay.com/itm/254714062831
and relatively cheap probes like this:
https://www.ebay.com/itm/333094733077
A swing arm like that Datron uses could be controlled
with a beefy RC servo (swung against a mechanical
stop for accuracy), and some python scripts could
do the UI for picking the probing locations as the Datron
video shows.
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