Like the cheap USB webcams and microscopes they perform processing on
the images before they pipe the data out the ports.
The ones you link to below may be made to work for location and
measuring. If you don't mind pausing to make measurements or detecting
the edges. It will just be more difficult to use them while moving them
across the parts.
On 3/14/21 12:35 AM, Frank Tkalcevic wrote:
There are a lot of "inexpensive" microscopes that are used for PCB repair and
inspection like this one...
https://www.aliexpress.com/item/4000835475910.html
And more expensive auto-focus options...
https://www.aliexpress.com/item/4000835289877.html
There are many combinations of lens and camera. Some USB only. Some cameras
have measuring software built in (used via a monitor).
Has anyone tried these for CNC location and measuring?
-----Original Message-----
From: Bari [mailto:bari00...@gmail.com]
Sent: Saturday, 13 March 2021 7:39 AM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Nice camera/probe integration
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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