On Wednesday 13 November 2013 14:54:44 Les Newell did opine:
> I haven't had a huge amount of success with those endoscopes. They are
> fixed focus and the one I had only gave about 15 FPS. The Supereyes
> microscopes like this
> <http://www.ebay.co.uk/itm/Supereyes-200x-Portable-Digital-USB-Microscop
> e-Enodscope-Video-Camera-LED-TE01-/190884342766> work quite well with a
> fairly consistent 30FPS frame rate. You can also zoom in quite close so
> you can get pretty decent accuracy. As with most USB cameras the frame
> rate can drop if the illumination is poor. None of these cameras have
> brilliant lenses so you do have to accept a bit of distortion.
> Distortion is generally lowest in the centre of the field of view.
>
> I was using them in an automated edge following application for reverse
> engineering wooden templates. Stick the template on the machine, jog to
> the edge and hit go. The machine then follows around the edge and spits
> out a dxf file when done.
>
> Les
I looked at that one rather hungrily Les, but lost interest when I found it
was a good 5.1" long by the time the cord bends over at the tube exit. I
would have to mount it to use it with Z about 3" up to use it, then
dismount it to use the machine else it would get wiped out on the
workpiece. I also know the lenses on those things are crap but all I want
is the central image anyway. There is another one, larger diameter but
shorter that does focus but whats the parallax movement when the focus
wheel is adjusted? Such very important details are sadly lacking so we
spend our money not wisely at times. If this one doesn't do, I'll
investigate the next one in the short fat lineup. There is one of those
that goes all the way to 800x, which would likely redefine "overkill" ;-)
My toy mill has a huge box on top of the spindle that hangs out so far all
the way around, so there is not room for a device 5" (123mm) long without
its hanging well below the tool itself.
So if, by the time it arrives the first of next week, I hope to have the
camview window working in linuxcnc again. ATM its broken again, and the
error messages are less than illuminating. :(
> >> So I just bought an "endoscope" camera off ebay for $22. Its about
> >> the size of a AAA battery, 2 meter usb cord, self illuminating
> >> 640x480, 8 bit color, should be many times faster in its imaging
> >> output with the reduced amount of data to handle. Ought to be here
> >> by the 18th.
> >>
> >>
> >> Cheers, Gene
Cheers, Gene
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
I've got a bad feeling about this.
A pen in the hand of this president is far more
dangerous than 200 million guns in the hands of
law-abiding citizens.
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